JP2599018B2 - Joint material for uneven surfaces - Google Patents
Joint material for uneven surfacesInfo
- Publication number
- JP2599018B2 JP2599018B2 JP14917190A JP14917190A JP2599018B2 JP 2599018 B2 JP2599018 B2 JP 2599018B2 JP 14917190 A JP14917190 A JP 14917190A JP 14917190 A JP14917190 A JP 14917190A JP 2599018 B2 JP2599018 B2 JP 2599018B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- swellable
- elastomer
- joint material
- rubber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 title claims description 37
- 229920006311 Urethane elastomer Polymers 0.000 claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 229920001971 elastomer Polymers 0.000 claims description 28
- 239000000806 elastomer Substances 0.000 claims description 16
- 230000008961 swelling Effects 0.000 claims description 13
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 7
- 239000005056 polyisocyanate Substances 0.000 claims description 6
- 229920001228 polyisocyanate Polymers 0.000 claims description 6
- 229920005549 butyl rubber Polymers 0.000 claims description 4
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 4
- 244000043261 Hevea brasiliensis Species 0.000 claims description 3
- 125000002723 alicyclic group Chemical group 0.000 claims description 3
- 125000001931 aliphatic group Chemical group 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- 229920000459 Nitrile rubber Polymers 0.000 claims description 2
- 229920003049 isoprene rubber Polymers 0.000 claims description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 21
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 13
- 239000005060 rubber Substances 0.000 description 12
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 11
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 10
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 9
- 239000004721 Polyphenylene oxide Substances 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 8
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 8
- 229920000570 polyether Polymers 0.000 description 8
- 239000011347 resin Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 125000006353 oxyethylene group Chemical group 0.000 description 5
- 229920005862 polyol Polymers 0.000 description 5
- 150000003077 polyols Chemical class 0.000 description 5
- -1 uretoimine group Chemical group 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 239000005058 Isophorone diisocyanate Substances 0.000 description 4
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 4
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 4
- 239000004567 concrete Substances 0.000 description 4
- 150000002170 ethers Chemical class 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 4
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 235000011187 glycerol Nutrition 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920000768 polyamine Polymers 0.000 description 3
- AEYNYHSOGNVQRY-UHFFFAOYSA-N 1-n,1-n-diethyl-4-methylbenzene-1,3-diamine Chemical compound CCN(CC)C1=CC=C(C)C(N)=C1 AEYNYHSOGNVQRY-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000004970 Chain extender Substances 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 2
- KXBFLNPZHXDQLV-UHFFFAOYSA-N [cyclohexyl(diisocyanato)methyl]cyclohexane Chemical compound C1CCCCC1C(N=C=O)(N=C=O)C1CCCCC1 KXBFLNPZHXDQLV-UHFFFAOYSA-N 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 2
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 1
- GFNDFCFPJQPVQL-UHFFFAOYSA-N 1,12-diisocyanatododecane Chemical compound O=C=NCCCCCCCCCCCCN=C=O GFNDFCFPJQPVQL-UHFFFAOYSA-N 0.000 description 1
- ZTNJGMFHJYGMDR-UHFFFAOYSA-N 1,2-diisocyanatoethane Chemical compound O=C=NCCN=C=O ZTNJGMFHJYGMDR-UHFFFAOYSA-N 0.000 description 1
- PCHXZXKMYCGVFA-UHFFFAOYSA-N 1,3-diazetidine-2,4-dione Chemical group O=C1NC(=O)N1 PCHXZXKMYCGVFA-UHFFFAOYSA-N 0.000 description 1
- OVBFMUAFNIIQAL-UHFFFAOYSA-N 1,4-diisocyanatobutane Chemical compound O=C=NCCCCN=C=O OVBFMUAFNIIQAL-UHFFFAOYSA-N 0.000 description 1
- RNLHGQLZWXBQNY-UHFFFAOYSA-N 3-(aminomethyl)-3,5,5-trimethylcyclohexan-1-amine Chemical compound CC1(C)CC(N)CC(C)(CN)C1 RNLHGQLZWXBQNY-UHFFFAOYSA-N 0.000 description 1
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical compound C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 1
- OGMWRQQRULHFNT-UHFFFAOYSA-N 7,7-diisocyanatoheptanoic acid Chemical compound OC(=O)CCCCCC(N=C=O)N=C=O OGMWRQQRULHFNT-UHFFFAOYSA-N 0.000 description 1
- 229920002126 Acrylic acid copolymer Polymers 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 1
- OQSSNGKVNWXYOE-UHFFFAOYSA-N N=C=O.N=C=O.CCC(C)CC(C)(C)C Chemical compound N=C=O.N=C=O.CCC(C)CC(C)(C)C OQSSNGKVNWXYOE-UHFFFAOYSA-N 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 150000001414 amino alcohols Chemical class 0.000 description 1
- IMUDHTPIFIBORV-UHFFFAOYSA-N aminoethylpiperazine Chemical compound NCCN1CCNCC1 IMUDHTPIFIBORV-UHFFFAOYSA-N 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- DZYFUUQMKQBVBY-UHFFFAOYSA-N bis(2-isocyanatoethyl) carbonate Chemical compound O=C=NCCOC(=O)OCCN=C=O DZYFUUQMKQBVBY-UHFFFAOYSA-N 0.000 description 1
- WXRKRFDRDWCLPW-UHFFFAOYSA-N bis(2-oxycyanoethyl) cyclohexene-1,2-dicarboxylate Chemical compound [O-][N+]#CCCOC(=O)C1=C(C(=O)OCCC#[N+][O-])CCCC1 WXRKRFDRDWCLPW-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- VPKDCDLSJZCGKE-UHFFFAOYSA-N carbodiimide group Chemical group N=C=N VPKDCDLSJZCGKE-UHFFFAOYSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical group OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
- YMQPOZUUTMLSEK-UHFFFAOYSA-L lead(2+);octanoate Chemical compound [Pb+2].CCCCCCCC([O-])=O.CCCCCCCC([O-])=O YMQPOZUUTMLSEK-UHFFFAOYSA-L 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- AYLRODJJLADBOB-QMMMGPOBSA-N methyl (2s)-2,6-diisocyanatohexanoate Chemical compound COC(=O)[C@@H](N=C=O)CCCCN=C=O AYLRODJJLADBOB-QMMMGPOBSA-N 0.000 description 1
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 125000005474 octanoate group Chemical group 0.000 description 1
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 235000010215 titanium dioxide Nutrition 0.000 description 1
- VOZKAJLKRJDJLL-UHFFFAOYSA-N tolylenediamine group Chemical group CC1=C(C=C(C=C1)N)N VOZKAJLKRJDJLL-UHFFFAOYSA-N 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Building Environments (AREA)
- Sealing Material Composition (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、不陸面用目地材に関する（ここで、不陸は
面が平でないことを言う。以下同様）。更に詳しくは凹
凸が1mあたり5mm以上の不陸面に水膨潤性ウレタンエラ
ストマー層が適用され、水密性または優れた目地充填効
果を発揮する不陸面用目地材に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a joint material for non-flat surfaces (here, non-flat means that the surface is not flat. The same applies hereinafter). More specifically, the present invention relates to a joint material for a non-land surface which has a water-swellable urethane elastomer layer applied to a non-land surface having irregularities of 5 mm or more per 1 m to exhibit water-tightness or an excellent joint filling effect.
［従来の技術］ 従来、少なくとも一方の面が不陸面である２面間の目
地材には非水膨潤性のゴム類およびスポンジ類が使用さ
れている。[Prior Art] Conventionally, non-water-swellable rubbers and sponges have been used as a joint material between two surfaces, at least one of which is an uneven surface.
しかしながら、非水膨潤性ゴム類では凹凸が大きい場
合、大きな締め付け力が必要となり、しかも完全な水密
性が期待できない。スポンジ類は不陸面追随性は良好だ
が、水圧が加わると水密性が悪くなる。However, in the case of non-water-swellable rubbers, when the unevenness is large, a large fastening force is required, and complete watertightness cannot be expected. Although sponges have good followability on uneven surfaces, their watertightness deteriorates when water pressure is applied.
また特開昭57−5773,特開昭57−61077,特開昭57−135
160,特開昭58−18526,特開昭61−34087各号公報などで
水膨潤性ゴムと非水膨潤性ゴムの複合は公知である。Also, JP-A-57-5773, JP-A-57-61077, JP-A-57-135
160, JP-A-58-18526, JP-A-61-34087, etc., a composite of a water-swellable rubber and a non-water-swellable rubber is known.
［発明が解決しようとする課題］ しかし、これらの水膨潤性ゴムと非水膨潤性ゴムの複
合において、水膨潤性ゴムはいずれも通常のゴムに吸水
性樹脂を分散および／または一部架橋させたものであ
り、凹凸が大きい場合、水膨潤速度が遅く（水膨潤速度
を早くするには吸水性樹脂の量を増し、水膨潤倍率を大
きくする必要があり、こうした場合、長期耐圧性および
吸水性樹脂の溶出に問題を残す）、性能発揮までに長時
間を要し、しかも吸水性樹脂の水中溶出による環境汚染
に問題を残し、実用にならない。[Problems to be Solved by the Invention] However, in these composites of a water-swellable rubber and a non-water-swellable rubber, each of the water-swellable rubbers disperses and / or partially cross-links a water-absorbing resin in ordinary rubber. In the case of large irregularities, the water swelling rate is low (in order to increase the water swelling rate, it is necessary to increase the amount of the water-absorbing resin and increase the water swelling ratio. This leaves a problem in the dissolution of the water-soluble resin), takes a long time to exhibit its performance, and leaves a problem in the environmental pollution due to the dissolution of the water-absorbent resin in water, which is not practical.
［課題を解決するための手段］ 本発明者らは、不陸面追随性が良く、高水圧下でも水
密性を保持し、しかも環境を汚染しない目地材を見出す
べく鋭意検討した結果、本発明に到達した。Means for Solving the Problems The present inventors have conducted intensive studies to find a joint material that has good followability on uneven surfaces, maintains watertightness even under high water pressure, and does not pollute the environment. Reached.
すなわち本発明は硬度20〜55Hs−JISAの水膨潤性ウレ
タンエラストマーおよび硬度40〜80Hs−JISAのウレタン
エラストマーを含まない非水膨潤性エラストマーの少な
くとも２層からなる、水膨潤性ウレタンエラストマーが
凹凸が1mあたり5mm以上の不陸面に適用され、水質の影
響を受けずに安定した水密性を発揮する、不陸面用目地
材（本発明の目地材ともいう）である。That is, the present invention comprises at least two layers of a water-swellable urethane elastomer having a hardness of 20 to 55 Hs-JISA and a non-water-swellable elastomer not containing a urethane elastomer having a hardness of 40 to 80 Hs-JISA. This is a joint material for a non-land surface (also referred to as a joint material of the present invention) which is applied to a non-land surface of 5 mm or more and exhibits stable watertightness without being affected by water quality.
本発明の目地材における水膨潤性ウレタンエラストマ
ーは硬度20〜55Hs−JISA、好ましくは25〜45Hs−JISAを
有する。硬度20Hs−JISA未満の水膨潤性ウレタンエラス
トマーでは不陸面追随性は良好であるが、0.1Kgf/cm2程
度以上の水圧が加わった場合、漏水が生じ易くなる。硬
度55Hs−JISAを越えると不陸面追随性が悪くなり水密性
が低下する。The water-swellable urethane elastomer in the joint material of the present invention has a hardness of 20 to 55 Hs-JISA, preferably 25 to 45 Hs-JISA. A water-swellable urethane elastomer having a hardness of less than 20 Hs-JISA has good trackability on an uneven surface, but when a water pressure of about 0.1 kgf / cm 2 or more is applied, water leakage easily occurs. If the hardness exceeds 55 Hs-JISA, the ability to follow an uneven surface deteriorates and the watertightness decreases.
水膨潤性ウレタンエラストマーの水膨潤倍率は通常1.
2〜４倍であり、好ましくは1.5〜3.5倍である。水膨潤
倍率が1.2倍未満では凹凸が大きくなると水密性が悪く
なり、水膨潤倍率が４倍を越えると高圧下の水密性およ
び耐久性が悪くなる。The water swelling ratio of a water-swellable urethane elastomer is usually 1.
It is 2 to 4 times, preferably 1.5 to 3.5 times. When the water swelling ratio is less than 1.2 times, the watertightness becomes poor when the unevenness becomes large, and when the water swelling ratio exceeds 4 times, the watertightness and durability under high pressure become poor.
水膨潤性ウレタンエラストマーとしては脂肪族および
／または脂環式ポリイソシアネートからなる有機ポリイ
ソシアネート成分とオキシエチレン含量が20〜100重量
％のポリオキシアルキレンエーテル類および必要により
オキシエチレン含量が20重量％未満のポリオキシアルキ
レンエーテル類と鎖伸長剤からなる活性水素成分とを反
応させて得られるものがあげられる。Examples of the water-swellable urethane elastomer include an organic polyisocyanate component composed of an aliphatic and / or alicyclic polyisocyanate, and a polyoxyalkylene ether having an oxyethylene content of 20 to 100% by weight and, if necessary, an oxyethylene content of less than 20% by weight. And those obtained by reacting the polyoxyalkylene ethers with an active hydrogen component comprising a chain extender.
脂肪族および／または脂環式ポリイソシアネート類と
しては、エチレンジイソシアネート、テトラメチレンジ
イソシアネート、ヘキサメチレンジイソシアネート、ド
デカメチレンジイソシアネート、2,2,4−トリメチルヘ
キサンジイソシアネート、リジンジイソシアネート、2,
6−ジイソシアネートメチルカプロエート、ビス（２−
イソシアネートエチル）フマレート、ビス（２−イソシ
アネートエチル）カーボネート、イソホロンジイソシア
ネート、ジシクロヘキシルメタンジイソシアネート、シ
クロヘキシレンジイソシアネート、メチルシクロヘキシ
レンジイソシアネート、ビス（２−イソシアネートエチ
ル）４−シクロヘキセン−1,2−ジカルボキシレートお
よび／またはそれらの変性物（カーボジイミド基、ウレ
トジオン基、ウレトイミン基、ウレア基、ビューレット
基および／またはイソシアヌレート基含有変性物）が挙
げられる。Examples of the aliphatic and / or alicyclic polyisocyanates include ethylene diisocyanate, tetramethylene diisocyanate, hexamethylene diisocyanate, dodecamethylene diisocyanate, 2,2,4-trimethylhexane diisocyanate, lysine diisocyanate,
6-diisocyanatomethylcaproate, bis (2-
(Isocyanatoethyl) fumarate, bis (2-isocyanatoethyl) carbonate, isophorone diisocyanate, dicyclohexylmethane diisocyanate, cyclohexylene diisocyanate, methylcyclohexylene diisocyanate, bis (2-isocyanatoethyl) 4-cyclohexene-1,2-dicarboxylate and / or Or modified products thereof (carbodiimide group, uretdione group, uretoimine group, urea group, buret group and / or isocyanurate group-containing modified products).
オキシエチレン含量が20〜100重量％のポリオキシア
ルキレンエーテル類としては低分子ポリオール（エチレ
ングリコール、プロピレングリコール、1,4−ブタンジ
オール、ジエチレングリコール、ビスフェノールＡ、ビ
スフェノールS,シクロヘキシレングリコール、などの２
官能ポリオール、グリセリン、トリメチロールプロパ
ン、ペンタエリスリトール、ソルビトール、シュークロ
ーズなどの３官能以上のポリオールなど）および／また
はアミン類（Ｎ−メチルジエタノールアミン、トリエタ
ノールアミンなどのアミノアルコール；エチレンジアミ
ン、ジエチレントリアミンなどの脂肪族ポリアミン；イ
ソホロンジアミンなどの脂環式ポリアミン；アミノエチ
ルピペラジンなどの複素環式ポリアミン）のエチレンオ
キシド（EO）またはEOと他のアルキレンオキシド［炭素
数３〜４のアルキレンオキシド、たとえば、プロピレン
オキシド（PO）、ブチレンオキシド］の付加物が挙げら
れる。これらのうち好ましいのはEOとPOとの付加物（ラ
ンダムおよび／またはブロック付加物）である。Polyoxyalkylene ethers having an oxyethylene content of 20 to 100% by weight include low molecular weight polyols (ethylene glycol, propylene glycol, 1,4-butanediol, diethylene glycol, bisphenol A, bisphenol S, cyclohexylene glycol, etc.).
Functional polyols, tri- or higher functional polyols such as glycerin, trimethylolpropane, pentaerythritol, sorbitol, and souce, and / or amines (amino alcohols such as N-methyldiethanolamine and triethanolamine); fats such as ethylenediamine and diethylenetriamine Alicyclic polyamines such as isophorone diamine; heterocyclic polyamines such as aminoethylpiperazine) or ethylene oxide (EO) or other alkylene oxides [alkylene oxides having 3 to 4 carbon atoms such as propylene oxide (PO ), Butylene oxide]. Of these, adducts of EO and PO (random and / or block adducts) are preferred.
必要により加えることができるオキシエチレン含量が
20重量％未満のポリオキシアルキレンエーテル類として
はポリオキシエチレン含量が20〜100重量％のポリオキ
シアルキレンエーテル類に記載した低分子ポリオールお
よび／またはアミン類のアルキレンオキシド付加物また
はアルキレンオキシドの開環重合物であって、オキシエ
チレン基含量が20重量％未満のものが挙げられる。Oxyethylene content that can be added if necessary
The polyoxyalkylene ethers having a polyoxyethylene content of less than 20% by weight include polyoxyalkylene ethers having a polyoxyethylene content of 20 to 100% by weight. Polymers having an oxyethylene group content of less than 20% by weight are exemplified.
必要により、加えることができる鎖伸長剤としては低
分子ポリオール（エチレングリコール、1,4−ブタンジ
オール、プロピレングリコール、ブチレングリコール、
グリセリン、トリメチロールプロパンなど）、低分子ポ
リアミン（エチレンジアミン、ジエチレントリアミン、
ジエチルトリレンジアミンなど）が挙げられる。If necessary, chain extenders that can be added include low molecular weight polyols (ethylene glycol, 1,4-butanediol, propylene glycol, butylene glycol,
Glycerin, trimethylolpropane, etc.), low molecular weight polyamines (ethylenediamine, diethylenetriamine,
Diethyltolylenediamine, etc.).
水膨潤性ウレタンエラストマーの製造は活性水素成分
と有機ポリイソシネート成分を直接反応させてもよい
が、予め活性水素成分の一部と有機ポリイソシアネート
成分とを常法（70〜140℃）で反応させ、末端NCO基1.5
〜15％含有のNCO末端ウレタンプレポリマーとし、かか
るNCO末端ウレタンプレポリマーと活性水素成分の残り
とを反応させてもよい。In the production of the water-swellable urethane elastomer, the active hydrogen component and the organic polyisocyanate component may be directly reacted, but a part of the active hydrogen component and the organic polyisocyanate component are reacted in advance by an ordinary method (70 to 140 ° C.) Terminal NCO group 1.5
The NCO-terminated urethane prepolymer may contain up to 15%, and the NCO-terminated urethane prepolymer may be reacted with the rest of the active hydrogen component.
水膨潤ウレタンエラストマーの製造には、触媒（ジブ
チル錫ジラウレート、オクチル酸鉛、スタナスオクトエ
ート、トリエチルアミン、トリエチレンジアミンな
ど）、フィラー（タルク、ベントナイト、炭酸カルシウ
ム、リトポン、シリカ、マイカなど）、着色材（チタン
白、ベンガラ、カーボンブラック、クロムグリーンな
ど）、紫外線吸収材、酸価防止剤、可塑材などを加えて
行うことができる。For the production of water-swollen urethane elastomers, catalysts (dibutyltin dilaurate, lead octylate, stannas octoate, triethylamine, triethylenediamine, etc.), fillers (talc, bentonite, calcium carbonate, lithopone, silica, mica, etc.), coloring materials (Titanium white, red iron, carbon black, chrome green, etc.), an ultraviolet absorber, an acid value inhibitor, a plasticizer, and the like.
本発明の目地材におけるウレタンエラストマーを含ま
ない非水膨潤性エラストマーとしては、クロロプレンゴ
ム、スチレンブタジエンゴム、ニトリルゴム、イソプレ
ンゴム、ブチルゴムおよび天然ゴム系エラストマーがあ
げられる。Examples of the non-water-swellable elastomer containing no urethane elastomer in the joint material of the present invention include chloroprene rubber, styrene butadiene rubber, nitrile rubber, isoprene rubber, butyl rubber, and natural rubber elastomer.
非水膨潤性エラストマーの硬度は40〜80Hs−JISA、好
ましくは45〜75Hs−JISAである。非水膨潤性エラストマ
ーの硬度が40Hs−JISA未満の場合、支持層としての強度
が不足し、十分な効果が発揮できない。また80Hs−JISA
を超えると、曲面追随性が悪くなり、施工時作業性が低
下する。The hardness of the non-water-swellable elastomer is 40 to 80 Hs-JISA, preferably 45 to 75 Hs-JISA. When the hardness of the non-water-swellable elastomer is less than 40 Hs-JISA, the strength as a support layer is insufficient, and a sufficient effect cannot be exhibited. 80Hs-JISA
Exceeding the curve deteriorates the ability to follow a curved surface and reduces workability during construction.
本発明の目地材は水膨潤性ウレタンエラストマーと非
水膨潤性エラストマーの２層品からなるもの、または非
水膨潤性エラストマーを中間層とし、両側を水膨潤性ウ
レタンエラストマーとした３層品からなるものが好まし
い。The joint material of the present invention comprises a two-layered product of a water-swellable urethane elastomer and a non-water-swellable elastomer, or a three-layered product having a non-water-swellable elastomer as an intermediate layer and water-swellable urethane elastomer on both sides. Are preferred.
本発明の目地材の製造は水膨潤性ウレタンエラストマ
ーと非水膨潤性エラストマーの成型品同士を接着剤（ク
ロロプレン系、ウレタン系、エポキシ系接着剤など）で
接着してもよいし、型内に順次、原料を流し込み順次、
硬化させて多層品としてもよい。In the production of the joint material of the present invention, a molded product of a water-swellable urethane elastomer and a non-water-swellable elastomer may be bonded to each other with an adhesive (chloroprene-based, urethane-based, epoxy-based adhesive, etc.), or in a mold. Sequentially, pour the raw material sequentially,
It may be cured to form a multilayer product.
本発明の目地材の断面形状は矩形またはそれに類する
もの（正方形または端が欠けたもの）が好ましい。また
その寸法は水膨潤性ウレタンエラストマーが通常5mm〜1
00mm厚、20〜200mm巾、非水膨潤性エラストマーが通常1
0〜200mm厚、20〜200mm巾である。The cross-sectional shape of the joint material of the present invention is preferably rectangular or similar (square or lacking an end). The size of the water-swellable urethane elastomer is usually 5 mm to 1 mm.
00mm thickness, 20-200mm width, non-water swellable elastomer is usually 1
It is 0-200mm thick and 20-200mm wide.
本発明の目地材における水膨潤性ウレタンエラストマ
ー表面は必要により、エンボスなど凹凸面に加工しても
よい。If necessary, the surface of the water-swellable urethane elastomer in the joint material of the present invention may be processed into an uneven surface such as emboss.
本発明の目地材を一方が不陸面である目地間に適用す
る場合、水膨潤性ウレタンエラストマー面を不陸面側に
適用する。また必要により、本発明の目地材はＨ型鋼な
どで両側面を拘束し適用することもできる。この場合Ｈ
型鋼端部より、水膨潤性ウレタンエラストマーが５〜50
mmはみだし、非水膨潤性エラストマーがＨ型鋼に入りき
っている状態が好ましい。When the joint material of the present invention is applied between joints having one non-land surface, a water-swellable urethane elastomer surface is applied to the non-land surface side. If necessary, the joint material of the present invention can be applied by restricting both side surfaces with H-section steel or the like. In this case H
5-50 water-swellable urethane elastomer from the end of mold steel
It is preferable that the mm is protruded and the non-water-swellable elastomer is completely contained in the H-shaped steel.
本発明の目地材を両面とも不陸面である目地間に適用
する場合は、非水膨潤性エラストマーを中間層とし、水
膨潤性ウレタンエラストマー層が両側にくる３層構造の
ものとする。この場合の目地材のサイズは両側の水膨潤
性ウレタンエラストマーが通常５〜100mm厚、20〜200mm
巾、中間の非水膨潤性エラストマーが通常10〜200mm
厚、20〜200mm巾である。When the joint material of the present invention is applied between joints having both uneven surfaces, a non-water-swellable elastomer is used as an intermediate layer and a water-swellable urethane elastomer layer has a three-layer structure on both sides. In this case, the size of the joint material is usually 5 to 100 mm thick, 20 to 200 mm for the water-swellable urethane elastomer on both sides.
Width, middle non-water swellable elastomer is usually 10-200mm
Thick, 20-200mm wide.
本発明の目地材を長さ方向に接合して使う場合は目地
材の接合面間に目地材と同程度の断面積を持つ厚み３〜
10mm程度の水膨潤倍率が1.5〜６倍程度の水膨潤性ウレ
タンエラストマーシートを挿入するのが望ましい。When the joint material of the present invention is used by being joined in the length direction, a thickness 3 to 3 having the same cross-sectional area as the joint material between joint surfaces of the joint material is used.
It is desirable to insert a water-swellable urethane elastomer sheet having a water swelling ratio of about 10 mm and a water swelling ratio of about 1.5 to 6 times.
本発明の目地材の具体的適用例としてはコンクリー
ト、モルタルあるいは鋼性構築物に他の構造部材を取り
付け水密性が要求される箇所への適用があげられるが、
本発明はこれに限定されるものではない。Specific examples of the joint material of the present invention include concrete, mortar or steel construction, where other structural members are attached to a part where water tightness is required,
The present invention is not limited to this.
本発明の目地材において、水膨潤性ウレタンエラスト
マーの代わりに水膨潤性ゴムたとえば水膨潤性を持たな
い通常のゴム（スチレンブタヂエンゴム、クロロプレン
ゴム、ブチルゴム、天然ゴムなど）に吸水性樹脂（CMC,
澱粉−アクリル酸共重合体、ポバール、水膨潤性ウレタ
ンなど）を混合したものを用いた場合、水が吸水性樹脂
に接するまでにゴム層を通過せねばならないため吸水、
水膨潤速度が遅く、コンクリート凹凸が大きく水膨潤性
ゴム層を厚くしなければならない場合などは効果発揮ま
でに時間がかかりすぎ実用にならない。またこのものは
接水時、吸水性樹脂が溶出する問題があり、長期使用お
よび環境汚染に問題を残す。In the joint material of the present invention, instead of the water-swellable urethane elastomer, a water-swellable rubber, for example, a normal rubber having no water-swellability (styrene butadiene rubber, chloroprene rubber, butyl rubber, natural rubber, etc.) is added to a water-absorbing resin ( CMC,
When a mixture of starch-acrylic acid copolymer, poval, water-swellable urethane, etc.) is used, water must pass through the rubber layer before the water comes into contact with the water-absorbing resin.
In the case where the water swelling speed is slow, the unevenness of the concrete is large, and the water swellable rubber layer needs to be thick, it takes too much time for the effect to be exhibited, and it is not practical. In addition, this has a problem that the water-absorbing resin is eluted when it comes in contact with water, leaving a problem in long-term use and environmental pollution.
また、本発明の目地材の代わりに水膨潤性ウレタンエ
ラストマー単体を用いた場合、水膨潤方向が制限できな
いため不陸面追随効果が少なく、しかも高水圧下では変
形をきたし漏水を生じさせることがある。Further, when a water-swellable urethane elastomer alone is used in place of the joint material of the present invention, the effect of following a non-land surface is small because the direction of water swelling cannot be restricted, and deformation under high water pressure causes water leakage. is there.
［実施例］ 以下、実施例により本発明をさらに説明するが、本発
明はこれに限定されるものではない。[Examples] Hereinafter, the present invention will be further described with reference to examples, but the present invention is not limited thereto.
実施例１ 硬度65Hs−JISAの非水膨潤性のクロロプレンエラスト
マー（断面の形状:50mm巾×90mm高さ矩形）と下記プレ
ポリマーと硬化剤（プレポリマーのNCO/硬化剤のOH
モル比1.05で混合、成型したもの）とからの硬度33Hs−
JISA、水膨潤倍率2.45倍の水膨潤性ウレタンエラストマ
ー（断面の形状:50mm巾×60mm高さの矩形）をクロロプ
レン系接着剤（速乾ボンドＧ−17:コニシ製）で接着さ
せて本発明の目地材を得た。Example 1 A non-water-swellable chloroprene elastomer having a hardness of 65 Hs-JISA (cross-sectional shape: 50 mm width × 90 mm height rectangle), the following prepolymer and a curing agent (NCO of prepolymer / OH of curing agent)
33Hs- hardness from 1.05 mol ratio mixed and molded)
JISA, a water-swellable urethane elastomer (cross-sectional shape: rectangle of 50 mm width × 60 mm height) having a water swelling ratio of 2.45 times is adhered with a chloroprene-based adhesive (quick dry bond G-17: manufactured by Konishi) of the present invention. Joint material was obtained.
（プレポリマー） プロピレングリコールにPOとEOの混合物（PO/EOの重
量比1/1）を付加させて得た平均分子量4000のポリエー
テルグリコール151g、プロピレングリコールにPOとEOの
混合物（PO/EOの重量比8/2）を付加させて得た平均分子
量4000のポリエーテルグリコール591g、グリセリンにPO
を付加させた後EOを付加させて（PO/EOの重量比は8/2）
得た平均分子量3000のポリエーテルポリオール90gとイ
ソホロンジイソシアネート168gとを120℃で８時間反応
させてNCO％が4.4％のウレタンプレポリマー（以下ウレ
タンプレポリマーという）を得た。(Prepolymer) 151 g of polyether glycol having an average molecular weight of 4000 obtained by adding a mixture of PO and EO (weight ratio of PO / EO 1/1) to propylene glycol, and a mixture of PO and EO (PO / EO) Weight ratio of 8/2), 591 g of polyether glycol having an average molecular weight of 4000, and PO to glycerin.
And then EO (PO / EO weight ratio is 8/2)
90 g of the obtained polyether polyol having an average molecular weight of 3000 and 168 g of isophorone diisocyanate were reacted at 120 ° C. for 8 hours to obtain a urethane prepolymer having an NCO% of 4.4% (hereinafter referred to as a urethane prepolymer).
（硬化剤） ビスフェノールＡにPOを付加させて得た平均分子量60
0のポリエーテルグリコール610gとビスフェノールＡにP
Oを付加させて得た平均分子量2000のポリエーテルグリ
コール388gとオクタン酸鉛2gとを混合し硬化剤（以下硬
化剤という）を得た。(Curing agent) Average molecular weight of 60 obtained by adding PO to bisphenol A
0 to 610 g of polyether glycol and bisphenol A
388 g of polyether glycol having an average molecular weight of 2,000 obtained by adding O and 2 g of lead octanoate were mixed to obtain a curing agent (hereinafter referred to as a curing agent).
実施例２ 実施例１に記載の硬度65Hs−JISAの非水膨潤性のクロ
ロプレンエラストマー（断面の形状:30mm巾×50mm高さ
矩形）と下記プレポリマーとジエチルトリレンジアミ
ン（プレポリマーのNCO/ジエチルトリレンジアミンのNH
2のモル比１で混合成型したもの）からの硬度48Hs−JIS
A,水膨潤倍率3.3倍の水膨潤性ウレタンエラストマー
（断面の形状:30mm巾×30mm高さ矩形）をウレタン系プ
ライマー（GLプライマー：三洋化成工業製）で接着させ
て本発明の目地材を得た。Example 2 A non-water-swellable chloroprene elastomer having a hardness of 65 Hs-JISA described in Example 1 (cross-sectional shape: 30 mm width × 50 mm height rectangle), the following prepolymer and diethyltolylenediamine (prepolymer NCO / diethyl NH in tolylenediamine
Hardness 48hs-JIS from the mixed molded ones 2 molar ratio of 1)
A, The joint material of the present invention is obtained by bonding a water-swellable urethane elastomer (cross-sectional shape: 30 mm width × 30 mm height rectangle) having a water swelling ratio of 3.3 with a urethane-based primer (GL primer: manufactured by Sanyo Chemical Industries). Was.
（プレポリマー） ビスフェノールＡにPOとEOの混合物（PO/EOの重量比:
6/4）を付加させた平均分子量5500のポリーエーテルグ
リコール805gとジシクロヘキシルメタンジイソシアネー
ト195gとを120℃で７時間反応させてNCO％が５％のウレ
タンプレポリマーを得た。(Prepolymer) Bisphenol A mixed with PO and EO (PO / EO weight ratio:
805 g of polyether glycol having an average molecular weight of 5500 to which 6/4) was added and 195 g of dicyclohexylmethane diisocyanate were reacted at 120 ° C. for 7 hours to obtain a urethane prepolymer having an NCO% of 5%.
実施例３ 硬度70Hs−JISAの非水膨潤性のスチレンブタヂエンエ
ラストマー（断面の形状:50mm巾×90mm高さ矩形）の上
にビスフェノールＡにEOとPOの混合物（EO/PO重量比3/
7））を付加させて得た平均分子量2000のポリエーテル
グリコールとイソホロンジイソシアネート（イソホロン
ジイソシアネートのNCO/ポリエーテルグリコールのOHモ
ル比1.05で混合、成型したもの）とからの硬度44Hs−JI
SA,水膨潤倍率2.8倍の水膨潤性ウレタンエラストマー
（断面の形状:50mm巾×60mm高さ矩形）をクロロプレン
系接着剤（速乾ボンドＧ−10:コニシ製）で接着して本
発明の目地材を得た。Example 3 On a non-water-swellable styrene-butadiene elastomer having a hardness of 70 Hs-JISA (cross-sectional shape: 50 mm width × 90 mm height rectangle), a mixture of EO and PO with bisphenol A (EO / PO weight ratio 3 /
7)) and a hardness of 44Hs-JI from polyether glycol having an average molecular weight of 2000 and isophorone diisocyanate (mixed and molded with isophorone diisocyanate in an NCO / polyether glycol OH molar ratio of 1.05).
SA, a water-swellable urethane elastomer having a water-swelling ratio of 2.8 times (cross-sectional shape: 50 mm wide x 60 mm high rectangle) is bonded with a chloroprene-based adhesive (quick-dry bond G-10: manufactured by Konishi) to join the present invention. Wood was obtained.
実施例４ 硬度55Hs−JISAのブチルゴム（断面の形状:40mm巾×5
0mm高さ矩形）の上部をウレタン系プライマー（GLプラ
イマー：三洋化成工業製）で処理した後、実施例１に記
載のウレタンプレポリマーと硬化剤との混合物を流
し硬化させ（断面の形状:40mm巾×40mm高さ）本発明の
目地材を得た。Example 4 Butyl Rubber with a Hardness of 55 Hs-JISA (Cross Section: 40 mm Width × 5
After treating the upper portion of the 0 mm-height rectangle with a urethane-based primer (GL primer: manufactured by Sanyo Chemical Industries), a mixture of the urethane prepolymer and the curing agent described in Example 1 was poured and cured (cross-sectional shape: 40 mm). (Width × 40 mm height) The joint material of the present invention was obtained.
実施例５ 実施例１に記載の硬度65Hs−JISAの非水膨潤性のクロ
ロプレンエラストマーを中間層（断面の形状:50mm巾×9
0mm厚）とし、両側に実施例１に記載のプレポリマー
と硬化剤とからの水膨潤性ウレタンエラストマー（断
面の形状：一方が50mm巾×10mm厚，逆側が50mm巾×50mm
厚）をクロロプレン系接着剤（速乾ボンドＧ−17）で接
着し、本発明の目地材を得た。Example 5 A non-water-swellable chloroprene elastomer having a hardness of 65 Hs-JISA described in Example 1 and an intermediate layer (cross-sectional shape: 50 mm width × 9
Water-swellable urethane elastomer from both the prepolymer and the curing agent described in Example 1 (cross-sectional shape: one side is 50 mm wide × 10 mm thick, the other side is 50 mm wide × 50 mm)
Was bonded with a chloroprene-based adhesive (quick dry bond G-17) to obtain the joint material of the present invention.
比較例１ 硬度60Hs−JISAのクロロプレンゴム（断面の形状:50m
m巾×150mm高さ矩形）。Comparative Example 1 A chloroprene rubber with a hardness of 60 Hs-JISA (cross-sectional shape: 50 m
m width x 150mm height rectangle).
比較例２ 実施例１に記載のウレタンプレポリマーと硬化剤
とからの水膨潤性ウレタンエラストマー（断面の形状:5
0mm巾×150mm高さ矩形）。Comparative Example 2 Water-swellable urethane elastomer (cross-sectional shape: 5) from the urethane prepolymer described in Example 1 and a curing agent
0mm width x 150mm height rectangle).
試験例１ 凹凸が1m当り22mm（ブロック全体としての凹凸は25m
m）ある150cm×150cmのコンクリートブロックと150cm×
150cmの鉄板の間に第５図に示した形状の目地材の供試
体（外寸縦120cm×横120cm）をはさみ、鉄板とコンクリ
ート不陸面の平均距離を目地材の高さと同じになるよう
にボルトナットで固定し、試験体とした。その後、試験
体ごと水中に浸漬し、３日ごとに水圧を加え止水圧の経
時変化を追跡した。Test Example 1 Irregularities of 22 mm per meter (roughness of the entire block is 25 m
m) 150cm x 150cm concrete block and 150cm x
A test piece (outer dimension 120cm x 120cm) of the joint shown in Fig. 5 is sandwiched between iron plates of 150cm so that the average distance between the iron plate and the uneven surface of concrete is the same as the joint height. Was fixed with bolts and nuts to obtain a test body. Thereafter, the test specimen was immersed in water, and a water pressure was applied every three days, and the change over time of the water stop pressure was followed.
［発明の効果］ 本発明の目地材を用いれば不陸の大きい面間での目地
充填において、大きな締め付け力を必要とせずに高圧
下、完全な水密性が得られ、しかも水質汚染などの環境
汚染を生じない。 [Effects of the Invention] By using the joint material of the present invention, in filling joints between surfaces having large unevenness, complete watertightness can be obtained under high pressure without requiring a large tightening force, and the environment such as water pollution. Does not cause contamination.
第１図及び第２図は本発明の目地材の断面図であり、第
３図は本発明の目地材をＨ型鋼にはさんだ時の断面図で
あり、第４図は接合した本発明の目地材の斜視図であ
り、第５図は本発明の目地材の試験例における供試体の
斜視図である。 １…水膨潤性ウレタンエラストマー ２…非水膨潤性エラストマー ３…Ｈ型鋼 ４…接合部用水膨潤性ウレタンエラストマーシート1 and 2 are cross-sectional views of the joint material of the present invention, FIG. 3 is a cross-sectional view of the joint material of the present invention sandwiched between H-shaped steels, and FIG. FIG. 5 is a perspective view of a joint material, and FIG. 5 is a perspective view of a specimen in a test example of the joint material of the present invention. DESCRIPTION OF SYMBOLS 1 ... Water-swellable urethane elastomer 2 ... Non-water-swellable elastomer 3 ... H-shaped steel 4 ... Water-swellable urethane elastomer sheet for joining parts
Claims (4)
ラストマーおよび硬度40〜80Hs−JISAの、ウレタンエラ
ストマーを含まない非水膨潤性エラストマーの少なくと
も２層からなる、水膨潤性ウレタンエラストマーが凹凸
が1mあたり5mm以上の不陸面に適用され、水質の影響を
受けずに安定した水密性を発揮する不陸面用目地材。1. A water-swellable urethane elastomer comprising at least two layers of a water-swellable urethane elastomer having a hardness of 20 to 55 Hs-JISA and a non-water-swellable elastomer not containing a urethane elastomer having a hardness of 40 to 80 Hs-JISA. Is applied to uneven surfaces of 5mm or more per meter and exhibits stable watertightness without being affected by water quality.
5mm以上である請求項１記載の目地材。2. The thickness of the water-swellable urethane elastomer layer is
The joint material according to claim 1, which is 5 mm or more.
よび／または脂環式ポリイソシアネートからの水膨潤性
ウレタンエラストマーであり、その水膨潤倍率が、1.2
〜４倍である請求項１または２記載の目地材。3. The water-swellable urethane elastomer is a water-swellable urethane elastomer from an aliphatic and / or alicyclic polyisocyanate, and has a water swelling ratio of 1.2.
The joint material according to claim 1, wherein the joint material is up to 4 times.
ム、スチレンブタジエンゴム、ニトリルゴム、イソプレ
ンゴム、ブチルゴムおよび天然ゴム系エラストマーから
なる群より選ばれる請求項１〜３のいずれかに記載の目
地材。4. The jointing material according to claim 1, wherein the non-water-swellable elastomer is selected from the group consisting of chloroprene rubber, styrene butadiene rubber, nitrile rubber, isoprene rubber, butyl rubber and natural rubber elastomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14917190A JP2599018B2 (en) | 1990-06-07 | 1990-06-07 | Joint material for uneven surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14917190A JP2599018B2 (en) | 1990-06-07 | 1990-06-07 | Joint material for uneven surfaces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0441835A JPH0441835A (en) | 1992-02-12 |
| JP2599018B2 true JP2599018B2 (en) | 1997-04-09 |
Family
ID=15469352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14917190A Expired - Fee Related JP2599018B2 (en) | 1990-06-07 | 1990-06-07 | Joint material for uneven surfaces |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2599018B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004277707A (en) * | 2003-02-25 | 2004-10-07 | Sanyo Chem Ind Ltd | Water expandable water cutoff material |
| JP4680514B2 (en) * | 2004-02-09 | 2011-05-11 | 株式会社スリーボンド | Water-expandable sealing material, precast concrete integrated with sealing material, and method for producing the same |
-
1990
- 1990-06-07 JP JP14917190A patent/JP2599018B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0441835A (en) | 1992-02-12 |
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