JPH0122857B2 - - Google Patents
Info
- Publication number
- JPH0122857B2 JPH0122857B2 JP15557680A JP15557680A JPH0122857B2 JP H0122857 B2 JPH0122857 B2 JP H0122857B2 JP 15557680 A JP15557680 A JP 15557680A JP 15557680 A JP15557680 A JP 15557680A JP H0122857 B2 JPH0122857 B2 JP H0122857B2
- Authority
- JP
- Japan
- Prior art keywords
- foam
- open
- weight
- rigid urethane
- parts
- 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
Links
- 239000006260 foam Substances 0.000 claims description 35
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 17
- 229920005862 polyol Polymers 0.000 claims description 9
- 150000003077 polyols Chemical class 0.000 claims description 9
- 239000004604 Blowing Agent Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 229920001228 polyisocyanate Polymers 0.000 claims description 6
- 239000005056 polyisocyanate Substances 0.000 claims description 6
- 239000004094 surface-active agent Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 239000011496 polyurethane foam Substances 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 description 5
- AGXUVMPSUKZYDT-UHFFFAOYSA-L barium(2+);octadecanoate Chemical compound [Ba+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O AGXUVMPSUKZYDT-UHFFFAOYSA-L 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- 239000004619 high density foam Substances 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 2
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical compound FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 2
- 229940029284 trichlorofluoromethane Drugs 0.000 description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- SVYKKECYCPFKGB-UHFFFAOYSA-N N,N-dimethylcyclohexylamine Chemical compound CN(C)C1CCCCC1 SVYKKECYCPFKGB-UHFFFAOYSA-N 0.000 description 1
- 235000021314 Palmitic acid Nutrition 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 229920002396 Polyurea Polymers 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- JLDBJDNKYFLMHI-UHFFFAOYSA-L barium(2+);tetradecanoate Chemical compound [Ba+2].CCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCC([O-])=O JLDBJDNKYFLMHI-UHFFFAOYSA-L 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000004620 low density foam Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- QEALYLRSRQDCRA-UHFFFAOYSA-N myristamide Chemical compound CCCCCCCCCCCCCC(N)=O QEALYLRSRQDCRA-UHFFFAOYSA-N 0.000 description 1
- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Description
本発明は、連通気泡を有する硬質ウレタンフオ
ームの製造方法に関するものである。
一般に硬質ウレタンフオームは、軽量で高強度
であり、高い独立気泡率を有することから軽量構
造材、断熱材として幅広く利用されて来た。硬質
ウレタンフオームは、強度があつて、コラツプス
（崩壊）を起こしにくいという特徴から、独立気
泡を有するものは得やすいが、連通気泡を有する
ものは得にくく、実質的に殆どの気泡が連通であ
る硬質ウレタンフオームを得ることは殆ど不可能
であつた。気泡が連通化された硬質ウレタンフオ
ームは、寸法安定性を向上すること、吸音効果が
高くなること、後塗装、樹脂コーテイングなどの
フオームの表面加工がし易いことなどの特徴をも
つ。従つて、硬質ウレタンフオームの気泡を連通
化することはウレタンフオーム技術者の永年の夢
であつた。これ迄に気泡を連通させるための幾つ
かの提案はあつた。即ち、連通性のシリコーン界
面活性剤を使用する方法、発泡剤として多い目の
水を使用してポリイソシアナートインデツクスを
低い目に設定する方法などがあつた。前者は、シ
リコーン界面活性剤の使用方法、即ち、シリコー
ンの種類の選択、使用量の決定が難しく、得られ
るフオームは殆ど100％独立気泡率を含有するか、
又はコラツプスかのいずれかであり、連通気泡を
有する均一気泡の硬質ウレタンフオームは得られ
難かつた。又、後者は、梱包材などに使用される
低密度フオームを得るのには有効な方法である
が、フオーム密度30Kg／m3以上の高密度で、独立
気泡の硬質ウレタンフオームと同程度の強度を有
する連通フオームを得ることは困難であつた。即
ち、発泡剤として水を多量に使用することからポ
リユリア結合が相対的に多く、フオームが脆く
又、ポリイソシアナートインデツクスを低い目に
セツトすることよりポリマーの反応完結が不充分
で架橋度が低いためにポリマーの強度が低く、結
局、梱包材として使用し得るが、強度を要求され
る用途には不適当である。
本発明はかゝる欠点を改良したもので、連通気
泡を有し、然も均一気泡の硬質ウレタンフオーム
を製造する方法を提供するものである。即ち、本
発明はポリイソシアナート、ポリオール、発泡
剤、界面活性剤、触媒などを主成分として硬質ポ
リウレタンフオームを製造するに際し、気泡連通
剤として次の一般式で示される化合物の群の中か
ら選ばれた化合物を、ポリオール100重量部当り、
0.1〜５重量部使用することを特徴とする連通気
泡を有する硬質ウレタンフオームの製造方法であ
る。
一般式
但し、Ｒは炭素数13、15、17を有するアルキル基
を示す。
Ｍは、周期律表のａ、又はｂ族の金属を示
す。ｎは、１又は２の整数である。
本発明に使用できる気泡連通剤としては、上述
の一般式(1)、(2)、(3)で示されるものである。即ち
一般式(1)で示されるものとしては、ミリスチン
酸、パルミチン酸、ステアリン酸の金属石けんが
使用できる。金属成分としては、周期律表のａ
又はｂ族元素が適当である。特にマグネシウ
ム、カルシウム、バリウム、亜鉛、カドニウムが
適当である。具体的な化合物として例示すれば、
ステアリン酸バリウム、ステアリン酸マグネシウ
ム、ステアリン酸亜鉛、ミリスチン酸バリウムな
どがある。一般式(2)で示されるものとして、ミリ
スチン酸アミド、パルミチミン酸アミド、ステア
リン酸アミドなどが使用できる。
次に一般式(3)で示されるものとしては、ミリス
チン酸、パルミチミン酸、ステアリン酸のN.
N′メチレンビスアミド又は、N.N′エチレンビス
アミドが使用できる。
これら気泡連通剤は、ポリオール100重量部当
り、0.1重量部以上、好ましくは0.5重量部から５
重量部使用することができる。この範囲内である
とフオームの連通気泡率は98％〜100％と高く、
ほとんど完全な連通気泡硬質ウレタンフオームと
いつてもいいものである。0.1重量部より少ない
場合は気泡連通化の効果が少く、即ち、得られた
硬質ウレタンフオームの独立気泡率が高くなり易
い。また５重量部より多く使用すると気泡が荒れ
やすく、気泡の大きさも不均一となつて良品質の
連通気泡フオームが得られにくくなる。従つて、
連通気泡率が高く有効な強度があつて、品質も均
一な実質的に有用な連通気泡を有するフオームを
得るためには、本発明の気泡連通剤を0.5〜５重
量部使用することが必要である。
本発明に使用される気泡連通剤は一般に常温で
固体であるから使用に先立つて、原料成分の一部
又は全部（例えばポリオール）と一緒にロールミ
ルなどで混練してペースト状にしておけば、原料
成分への分散が容易であり、使用中分離する様な
ことは殆どさけられる。
又、本発明に使用できるポリイソシアナート、
ポリオール、発泡剤、界面活性剤、触媒は通常の
硬質ウレタンフオームの製造に使用できるものは
すべて使用できる。
本発明では発泡剤として、ポリイソシアナート
と反応して炭酸ガスを発生する水を使用すること
は必ずしも必要としない。発泡剤としては一般の
低沸点溶剤（例えばフロン）を使用すれば、上述
の気泡連通剤の作用で連通気泡の硬質フオームが
得られる。
本発明による連通気泡を有する硬質ウレタンフ
オームの特徴をとげれば次の如くである。
(1) 連通気泡率98％〜100％と殆ど完全に連通気
泡のフオームである。
(2) 低密度から高密度フオーム迄任意の密度範囲
で連通気泡フオームを得ることができる。
(3) 連通気泡で然も気泡は均一、微細である。
(4) 強度は独立気泡フオームと殆ど同様に高く軽
量高強度構造材として使用できる。
(5) 寸法安定性にすぐれる。
(6) 殆ど完全に連通気泡であるため、フオームを
任意の寸法に切り出し、表面処理することがで
きる。（塗装、着色、樹脂コーテイングなど）。
(7) 吸音効果が向上する。
次に本発明を実施例で示す。
本発明は、これらの実施例に限定されるもので
はない。又、実施例中「部」とあるのは「重量
部」を意味するものである。物性試験方法は次の
如くである。
密度……JISA−9514による
連通気泡率……ASTM−Ｄ−1940による
寸法安定性試験……ASTM−Ｄ−2126による
圧縮強度……JISA−9514による
実施例 １
次の原料を１のポリエチレン製ビーカーにと
り、篭型ミキサーで激しく10秒間混合し、上部開
放のモールド中に注入して発泡させた。なおステ
アリン酸バリウムはポリオールA10部に練り込ん
でペースト状にしておいたものを使用した。
ポリオール*Ａ 100重量部
シリコーン界面活性剤（トーレシリコーンSH−
190） 2.0
ジメチルシクロヘキシルアミン 0.3
ジエチレントリアミン 0.1
トリクロロモノフロロメタン 35
ステアリン酸バリウム 1.0
粗製MDI（＊芳香族アミン、ジエタノールアミン
を開始剤としてプロピレンオキシドを付加したポ
リエーテルポリオールでOH価：500である。）
140
得られたフオームの物理的性質は次の通り。
密 度 26.8Kg／m3
圧縮強さ（） 2.4Kg／cm2
〃 （⊥） 1.1 〃
連通気泡率 100％
寸法安定性 良好
実施例 ２−３
実施例１に於けるトリクロロモノフロロメタン
25部又は20部にして同様にフオームを製造し次の
フオームを得た。
密 度（Kg／m3） 40.1 49.2
圧縮強度（）（Kg／cm2） 3.7 4.9
〃 （⊥）（ 〃 ） 1.7 2.4
連通気泡率（％） 100 100
寸法安定性 良好 良好
比較例 １
実施例１におけるステアリン酸バリウムを除い
て同様にフオームを製造した。
密 度（Kg／m3） 30.0
圧縮強度（）（Kg／cm2） 2.3
〃 （⊥）（ 〃 ） 0.9
連通気泡率（％） ０
実施例 ４−13
表１に示す配合で前記各例と同様にしてフオー
ムを製造した。
得られたフオームの物性も表−１に示す。
The present invention relates to a method for manufacturing a rigid urethane foam having open cells. In general, rigid urethane foams are lightweight, have high strength, and have a high closed cell ratio, so they have been widely used as lightweight structural materials and heat insulating materials. Rigid urethane foam is strong and does not easily collapse, so it is easy to obtain one with closed cells, but it is difficult to obtain one with open cells; in fact, most of the cells are open. It was almost impossible to obtain a rigid urethane foam. Rigid urethane foam with open air bubbles has features such as improved dimensional stability, higher sound absorption effect, and ease of surface processing such as post-painting and resin coating. Therefore, it has been a long-held dream of urethane foam engineers to make the air bubbles in rigid urethane foam open. Up to now, several proposals have been made for making air bubbles communicate. Namely, there have been methods such as using an open silicone surfactant, and using a large amount of water as a foaming agent to set a low polyisocyanate index. In the former case, it is difficult to determine how to use the silicone surfactant, that is, to select the type of silicone and to determine the amount used, and the resulting foam contains almost 100% closed cell ratio.
or collapse, and it was difficult to obtain a rigid urethane foam with uniform cells having open cells. The latter method is an effective method for obtaining low-density foam used for packaging materials, etc., but it is difficult to obtain a high-density foam with a density of 30 kg/m 3 or more and a strength comparable to that of closed-cell rigid urethane foam. It was difficult to obtain a communicating form with . That is, since a large amount of water is used as a blowing agent, there are relatively many polyurea bonds, resulting in a brittle foam.Also, by setting the polyisocyanate index to a low value, the completion of the polymer reaction is insufficient, resulting in a low degree of crosslinking. Because of this low strength, the strength of the polymer is low, and although it can be used as a packaging material, it is unsuitable for applications that require strength. The present invention improves these drawbacks and provides a method for producing a rigid urethane foam having open cells and uniform cells. That is, the present invention uses polyisocyanates, polyols, blowing agents, surfactants, catalysts, etc. as main components to produce rigid polyurethane foams, which are selected from the group of compounds represented by the following general formula as cell opening agents. per 100 parts by weight of polyol,
This is a method for producing a rigid urethane foam having open cells, characterized in that 0.1 to 5 parts by weight of the foam is used. general formula However, R represents an alkyl group having 13, 15, or 17 carbon atoms. M represents a metal of group a or b of the periodic table. n is an integer of 1 or 2. Cell-opening agents that can be used in the present invention are those represented by the above-mentioned general formulas (1), (2), and (3). That is, as those represented by the general formula (1), metal soaps of myristic acid, palmitic acid, and stearic acid can be used. As a metal component, a of the periodic table is
Or group b elements are suitable. Particularly suitable are magnesium, calcium, barium, zinc and cadmium. Examples of specific compounds include:
These include barium stearate, magnesium stearate, zinc stearate, and barium myristate. As the compound represented by the general formula (2), myristic acid amide, palmitimic acid amide, stearic acid amide, etc. can be used. Next, as shown in general formula (3), N of myristic acid, palmitimic acid, and stearic acid.
N'methylenebisamide or NN'ethylenebisamide can be used. These cell opening agents are 0.1 parts by weight or more, preferably 0.5 to 5 parts by weight, per 100 parts by weight of polyol.
Parts by weight can be used. Within this range, the open cell rate of the foam is as high as 98% to 100%.
Almost completely open-cell rigid urethane foam, which is always a good thing. When the amount is less than 0.1 part by weight, the effect of making cells open to each other is small, that is, the closed cell ratio of the obtained rigid urethane foam tends to become high. If more than 5 parts by weight is used, the cells tend to become rough and the size of the cells becomes non-uniform, making it difficult to obtain a good quality open cell foam. Therefore,
In order to obtain a foam having substantially useful open cells with a high open cell ratio, effective strength, and uniform quality, it is necessary to use 0.5 to 5 parts by weight of the cell opener of the present invention. be. The cell opening agent used in the present invention is generally solid at room temperature. It is easy to disperse into components, and separation during use is almost avoided. Also, polyisocyanates that can be used in the present invention,
All polyols, blowing agents, surfactants, and catalysts that can be used in the production of ordinary rigid urethane foams can be used. In the present invention, it is not necessarily necessary to use water, which reacts with polyisocyanate to generate carbon dioxide gas, as a blowing agent. If a general low boiling point solvent (for example, fluorocarbon) is used as the blowing agent, a rigid foam with open cells can be obtained by the action of the above-mentioned cell opening agent. The characteristics of the rigid urethane foam having open cells according to the present invention are as follows. (1) The foam is almost completely open-celled, with an open-cell rate of 98% to 100%. (2) Open-cell foams can be obtained in any density range from low density to high density foams. (3) Even though it is an open cell, the cells are uniform and fine. (4) It has almost the same strength as closed cell foam and can be used as a lightweight, high-strength structural material. (5) Excellent dimensional stability. (6) Since it is almost completely open-celled, the foam can be cut to any size and surface treated. (painting, coloring, resin coating, etc.). (7) Improved sound absorption effect. Next, the present invention will be illustrated by examples. The present invention is not limited to these examples. In addition, "parts" in the examples mean "parts by weight." The physical property test method is as follows. Density...Open cell rate according to JISA-9514...Dimensional stability test according to ASTM-D-1940...Compressive strength according to ASTM-D-2126...Example according to JISA-9514 1 The following raw materials were placed in a polyethylene beaker of 1. The mixture was mixed vigorously for 10 seconds using a basket mixer, and poured into a mold with an open top to foam. The barium stearate was kneaded into 10 parts of polyol A to form a paste. Polyol * A 100 parts by weight Silicone surfactant (Toray Silicone SH-
190) 2.0 Dimethylcyclohexylamine 0.3 Diethylenetriamine 0.1 Trichloromonofluoromethane 35 Barium stearate 1.0 Crude MDI (*Polyether polyol with propylene oxide added using aromatic amine, diethanolamine as an initiator, OH value: 500.)
140 The physical properties of the obtained foam are as follows. Density 26.8Kg/m 3 Compressive strength () 2.4Kg/cm 2 〃 (⊥) 1.1 〃 Open cell ratio 100% Dimensional stability Good example 2-3 Trichloromonofluoromethane in Example 1
Foams were produced in the same manner using 25 parts or 20 parts to obtain the following foams. Density (Kg/m 3 ) 40.1 49.2 Compressive strength () (Kg/cm 2 ) 3.7 4.9 〃 (⊥) ( 〃 ) 1.7 2.4 Open cell ratio (%) 100 100 Dimensional stability Good Good comparative example 1 Example 1 A foam was prepared in the same manner except for the barium stearate. Density (Kg/m 3 ) 30.0 Compressive strength () (Kg/cm 2 ) 2.3 〃 (⊥) ( 〃 ) 0.9 Open cell ratio (%) 0 Example 4-13 With the formulation shown in Table 1, each of the above examples A foam was produced in the same manner. The physical properties of the obtained foam are also shown in Table 1.
【表】【table】
Claims (1)
界面活性剤、触媒などを主成分として硬質ポリウ
レタンフオームを製造するに際し、気泡連通剤と
して次の一般式で示される化合物の群の中から選
ばれた化合物をポリオール100重量部当り0.1〜５
重量部使用することを特徴とする連通気泡を有す
る硬質ウレタンフオームの製造方法。 一般式 但し、Ｒは炭素数13、15、17を有するアルキル基
を示す。 Ｍは周期律表のａ、またはｂ族の金属を示
す。ｎは１または２の整数である。[Claims] 1. Polyisocyanate, polyol, blowing agent,
When producing a rigid polyurethane foam containing surfactants, catalysts, etc. as main components, a compound selected from the group of compounds represented by the following general formula is used as a cell opening agent in an amount of 0.1 to 5% per 100 parts by weight of polyol.
A method for producing a rigid urethane foam having open air cells, characterized in that part by weight of the rigid urethane foam is used. general formula However, R represents an alkyl group having 13, 15, or 17 carbon atoms. M represents a metal of group a or b of the periodic table. n is an integer of 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15557680A JPS5780436A (en) | 1980-11-05 | 1980-11-05 | Manufacture of rigid urethane foam having open cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15557680A JPS5780436A (en) | 1980-11-05 | 1980-11-05 | Manufacture of rigid urethane foam having open cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5780436A JPS5780436A (en) | 1982-05-20 |
| JPH0122857B2 true JPH0122857B2 (en) | 1989-04-28 |
Family
ID=15609062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15557680A Granted JPS5780436A (en) | 1980-11-05 | 1980-11-05 | Manufacture of rigid urethane foam having open cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5780436A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2324798B (en) * | 1997-05-01 | 1999-08-18 | Ici Plc | Open celled cellular polyurethane products |
-
1980
- 1980-11-05 JP JP15557680A patent/JPS5780436A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5780436A (en) | 1982-05-20 |
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