JP4833861B2 - アルデヒド官能基が導入されたポリマーを用いて抄紙機の濾水性を高める方法 - Google Patents
アルデヒド官能基が導入されたポリマーを用いて抄紙機の濾水性を高める方法 Download PDFInfo
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- JP4833861B2 JP4833861B2 JP2006551201A JP2006551201A JP4833861B2 JP 4833861 B2 JP4833861 B2 JP 4833861B2 JP 2006551201 A JP2006551201 A JP 2006551201A JP 2006551201 A JP2006551201 A JP 2006551201A JP 4833861 B2 JP4833861 B2 JP 4833861B2
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- VVJKKWFAADXIJK-UHFFFAOYSA-N Allylamine Chemical compound NCC=C VVJKKWFAADXIJK-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
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- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
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- 150000001735 carboxylic acids Chemical class 0.000 description 1
- ZTGUNQDGUVVFHL-UHFFFAOYSA-N carboxymethyl-methyl-(2-prop-2-enoyloxyethyl)sulfanium;chloride Chemical compound [Cl-].OC(=O)C[S+](C)CCOC(=O)C=C ZTGUNQDGUVVFHL-UHFFFAOYSA-N 0.000 description 1
- 239000010897 cardboard waste Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- BHDFTVNXJDZMQK-UHFFFAOYSA-N chloromethane;2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound ClC.CN(C)CCOC(=O)C(C)=C BHDFTVNXJDZMQK-UHFFFAOYSA-N 0.000 description 1
- WQHCGPGATAYRLN-UHFFFAOYSA-N chloromethane;2-(dimethylamino)ethyl prop-2-enoate Chemical compound ClC.CN(C)CCOC(=O)C=C WQHCGPGATAYRLN-UHFFFAOYSA-N 0.000 description 1
- ZTUMLBMROBHIIH-UHFFFAOYSA-N chloromethylbenzene;2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical group ClCC1=CC=CC=C1.CN(C)CCOC(=O)C(C)=C ZTUMLBMROBHIIH-UHFFFAOYSA-N 0.000 description 1
- CEJFYGPXPSZIID-UHFFFAOYSA-N chloromethylbenzene;2-(dimethylamino)ethyl prop-2-enoate Chemical group ClCC1=CC=CC=C1.CN(C)CCOC(=O)C=C CEJFYGPXPSZIID-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 239000000412 dendrimer Substances 0.000 description 1
- 229920000736 dendritic polymer Polymers 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- IOMDIVZAGXCCAC-UHFFFAOYSA-M diethyl-bis(prop-2-enyl)azanium;chloride Chemical compound [Cl-].C=CC[N+](CC)(CC)CC=C IOMDIVZAGXCCAC-UHFFFAOYSA-M 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- KOYVXQYZSMJMKX-UHFFFAOYSA-N dimethyl(2-prop-2-enoyloxyethyl)azanium methanesulfonate Chemical compound CS(=O)(=O)[O-].C(C=C)(=O)OCC[NH+](C)C KOYVXQYZSMJMKX-UHFFFAOYSA-N 0.000 description 1
- JCRDPEHHTDKTGB-UHFFFAOYSA-N dimethyl-[2-(2-methylprop-2-enoyloxy)ethyl]azanium;chloride Chemical compound Cl.CN(C)CCOC(=O)C(C)=C JCRDPEHHTDKTGB-UHFFFAOYSA-N 0.000 description 1
- CTQCRZPAPNYGJT-UHFFFAOYSA-N dimethyl-[3-(2-methylprop-2-enoylamino)propyl]azanium;chloride Chemical compound Cl.CN(C)CCCNC(=O)C(C)=C CTQCRZPAPNYGJT-UHFFFAOYSA-N 0.000 description 1
- GQOKIYDTHHZSCJ-UHFFFAOYSA-M dimethyl-bis(prop-2-enyl)azanium;chloride Chemical compound [Cl-].C=CC[N+](C)(C)CC=C GQOKIYDTHHZSCJ-UHFFFAOYSA-M 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- UYMKPFRHYYNDTL-UHFFFAOYSA-N ethenamine Chemical compound NC=C UYMKPFRHYYNDTL-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000010528 free radical solution polymerization reaction Methods 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 125000001188 haloalkyl group Chemical group 0.000 description 1
- 125000001183 hydrocarbyl group Chemical group 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 229910000358 iron sulfate Inorganic materials 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- MGJXBDMLVWIYOQ-UHFFFAOYSA-N methylazanide Chemical compound [NH-]C MGJXBDMLVWIYOQ-UHFFFAOYSA-N 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 239000010812 mixed waste Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229940088644 n,n-dimethylacrylamide Drugs 0.000 description 1
- YLGYACDQVQQZSW-UHFFFAOYSA-N n,n-dimethylprop-2-enamide Chemical compound CN(C)C(=O)C=C YLGYACDQVQQZSW-UHFFFAOYSA-N 0.000 description 1
- PNLUGRYDUHRLOF-UHFFFAOYSA-N n-ethenyl-n-methylacetamide Chemical compound C=CN(C)C(C)=O PNLUGRYDUHRLOF-UHFFFAOYSA-N 0.000 description 1
- ZQXSMRAEXCEDJD-UHFFFAOYSA-N n-ethenylformamide Chemical compound C=CNC=O ZQXSMRAEXCEDJD-UHFFFAOYSA-N 0.000 description 1
- SWPMNMYLORDLJE-UHFFFAOYSA-N n-ethylprop-2-enamide Chemical compound CCNC(=O)C=C SWPMNMYLORDLJE-UHFFFAOYSA-N 0.000 description 1
- QNILTEGFHQSKFF-UHFFFAOYSA-N n-propan-2-ylprop-2-enamide Chemical compound CC(C)NC(=O)C=C QNILTEGFHQSKFF-UHFFFAOYSA-N 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000000286 phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004344 phenylpropyl group Chemical group 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000010094 polymer processing Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- RZKYDQNMAUSEDZ-UHFFFAOYSA-N prop-2-enylphosphonic acid Chemical compound OP(O)(=O)CC=C RZKYDQNMAUSEDZ-UHFFFAOYSA-N 0.000 description 1
- 239000013055 pulp slurry Substances 0.000 description 1
- 239000007870 radical polymerization initiator Substances 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229940047670 sodium acrylate Drugs 0.000 description 1
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 1
- 235000019254 sodium formate Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- SONHXMAHPHADTF-UHFFFAOYSA-M sodium;2-methylprop-2-enoate Chemical compound [Na+].CC(=C)C([O-])=O SONHXMAHPHADTF-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010557 suspension polymerization reaction Methods 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 description 1
- 238000005891 transamination reaction Methods 0.000 description 1
- 230000005068 transpiration Effects 0.000 description 1
- UZNHKBFIBYXPDV-UHFFFAOYSA-N trimethyl-[3-(2-methylprop-2-enoylamino)propyl]azanium;chloride Chemical compound [Cl-].CC(=C)C(=O)NCCC[N+](C)(C)C UZNHKBFIBYXPDV-UHFFFAOYSA-N 0.000 description 1
- OEIXGLMQZVLOQX-UHFFFAOYSA-N trimethyl-[3-(prop-2-enoylamino)propyl]azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CCCNC(=O)C=C OEIXGLMQZVLOQX-UHFFFAOYSA-N 0.000 description 1
- ZTWTYVWXUKTLCP-UHFFFAOYSA-N vinylphosphonic acid Chemical compound OP(O)(=O)C=C ZTWTYVWXUKTLCP-UHFFFAOYSA-N 0.000 description 1
- NLVXSWCKKBEXTG-UHFFFAOYSA-N vinylsulfonic acid Chemical compound OS(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H3/00—Paper or cardboard prepared by adding substances to the pulp or to the formed web on the paper-making machine and by applying substances to finished paper or cardboard (on the paper-making machine), also when the intention is to impregnate at least a part of the paper body
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
- D21H17/55—Polyamides; Polyaminoamides; Polyester-amides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/28—Condensation with aldehydes or ketones
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/06—Paper forming aids
- D21H21/10—Retention agents or drainage improvers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/18—Reinforcing agents
- D21H21/20—Wet strength agents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2800/00—Copolymer characterised by the proportions of the comonomers expressed
- C08F2800/10—Copolymer characterised by the proportions of the comonomers expressed as molar percentages
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
- D21H17/375—Poly(meth)acrylamide
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Paper (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
本発明におけるアルデヒド官能基が導入されたポリマーは、アミノ基又はアミド基を含むポリマーを1種以上のアルデヒドと反応させることによって調製される。該アミノ基又はアミド基を含むポリマーとしては、直鎖、分岐、スター、グラフト、及びデンドリマーなど様々な構造のものがある。
95/5モル%アクリルアミド/DADMACコポリマーの調製
機械撹拌機、熱電温度計、凝縮器、窒素パージ管及び添加口(addition port)を装備した1500mLの反応フラスコに、116.4gの脱イオン水又は軟水、26.3gのリン酸、63.5gの62%のジアリルジメチル塩化アンモニウム水溶液(ナルコカンパニー社、ネイパービル、イリノイ州)、7.6gのギ酸ナトリウム及び0.09gのエチレンジアミン四酢酸四ナトリウム塩を添加した。反応混合液を400rpmで攪拌し、17.3gの50%の水酸化ナトリウム水溶液を用いてpHを4.7〜4.9に調整した。その結果の混合液を100℃に加熱し、50mL/minの窒素でパージした。100℃に達したところで、135分かけて17.6gの25.0%の過硫酸アンモニウム水溶液を該反応混合液に添加した。該過硫酸アンモニウム水溶液の添加開始から5分経過後、120分かけて750.9gの49.5%のアクリルアミド水溶液を該反応混合液に添加した。過硫酸アンモニウム水溶液の添加後、100℃を維持しながら180分間反応させた。次に該反応混合液を室温まで冷却し、50%の水酸化ナトリウム水溶液又は濃縮硫酸を用いてpHを5.2〜5.8に調整した。この生成物は粘性があり、透明から琥珀色の溶液であった。この生成物の分子量は約20,000g/モルであった。
9.0%活性におけるグリオキサールとアクリルアミドのモル比を0.8:1とした場合(グリオキサールとポリマーの合計)の95/5モル%アクリルアミド/DADMACコポリマーのグリオキシル化
機械撹拌機、熱電温度計、凝縮器、添加口及び反応器の底部にサンプリングバルブを装備した2000mLの反応フラスコに、238.0gの実施例1において調製した95/5モル%アクリルアミド/DADMACコポリマーの41%水溶液及び1304.0gの脱イオン水又は軟水を添加した。該ポリマー溶液を400rpmで攪拌した。5.8gの50%の水酸化ナトリウム水溶液を添加して該溶液のpHを8.8〜9.1に調整した。反応温度を24〜26℃に設定した。20〜30分かけてグリオキサール(143.0gの40%の水溶液)を該反応混合液に添加した。グリオキサール添加後の該反応混合液のブルックフィールド粘度(ブルックフィールドプログラマブルLVDV−II+粘度計、60rpmにおいてLV#1スピンドル、ブルックフィールドエンジニアリングラボラトリー社(Brookfield Engineering Laboratories, Inc)、ミドルボロー、マサチューセッツ州)は、約4〜5cpsであった。10%の水酸化ナトリウム水溶液(25g)を20〜30分かけて添加し、該反応混合液のpHを7.5〜8.8に調整した。水酸化ナトリウム添加後の該反応混合液のブルックフィールド粘度(ブルックフィールドプログラマブルLVDV−II+粘度計、60rpmにおいてLV#1スピンドル、ブルックフィールドエンジニアリングラボラトリー社、ミドルボロー、マサチューセッツ州)は、約4〜5cpsであった。よく混合しながら、該反応混合液のpHを約7.0〜8.8及び温度を約24〜26℃に維持した。ブルックフィールド粘度を測定し、1cps又はそれ以上(5〜200cps、>100,000g/モル)という所望の粘度の増加が達成された時には、硫酸(93%)を加えて該反応混合液のpHを2〜3.5に低減し、実質的に反応速度を減速させた。粘度の増加速度は、反応のpH及び温度に依存する。該反応混合液のpHが高いほど、粘度の増加速度が速い。粘度の増加速度は、該反応混合液のpHを低減させることで調節した。生成物は透明から混濁の間であり、無着色から琥珀色の間であり、流動性があり、ブルックフィールド粘度は5cps又はそれ以上であった。得られた生成物は、該生成物のブルックフィールド粘度が40cps未満である時及び該生成物を水で希釈し活性が低率の時に、保存において、より安定であった。所望の目的とする生成物の粘度を調整することによって、全体の活性をより高率又は低率にして該生成物を調製することができる。調製した試料のNMR分析は、約70〜80%のグリオキサールが未反応であり、15〜35モル%のアクリルアミド単位がグリオキサールと反応し、1置換又は2置換アクリルアミドを形成したことを示している。
代表的なアルデヒド官能基が導入されたポリマーの脱水効果
グリオキサールとアクリルアミドのモル比(以下、「G/A」という」)を0.1、0.2、0.4及び0.8として調製したグリオキサール化(glyoxalated)DADMAC/アクリルアミドポリマーの脱水効果を抄紙機試験で評価した。G/Aを0.1、0.2及び0.8として調製したポリマーの相対的な性能を、モル比を0.4として調製したポリマーと比較した。試験は、リサイクルダンボール原紙及びダンボール用中芯用の100%OCC完成紙料を用いて、ドュアルヘッドボックス長網抄紙機(dual headbox Fourdrinier papermachine)によって行われた。実際の抄紙機の条件は、形成される板紙の具体的なグレードによって異なった。全ての場合において、歩留りプログラムとして、高濃度の紙料にポリアルミニウムクロリドを添加し、低濃度の紙料にカチオン性凝集剤を添加した。ダンボール原紙のグレードにおいては、低濃度の紙料にASAサイズ剤も添加した。底層と合わせる前に上層の裏面に、スプレーブームを用いてグリオキサール化アクリルアミドポリマーを塗布した。尚、先の試験は、ウェットエンドにおける高濃度又は低濃度紙料に添加することによっても、脱水効果は得られることを示していた。
G/A比0.4のポリマーとG/A比0.1のポリマーの比較
ウェットエンドにおいて澱粉を添加していない19,050.87954g(42lb)のダンボール原紙について、これら2種のポリマーを比較した。907.184740g/トン(2.0lb/トン)のG/A比0.4のポリマーで基準を設定した後、997.903214g/トン(2.2lb/トン)のG/A比0.1のポリマーに置き換えた。ほぼ直ぐに、リールの紙において水分の増加が連続して観察され、蒸気要求量は約1時間で最大に増加したため、抄紙機の減速を防ぐためにG/A比0.4のポリマーを再度入れることが必要になった。抄紙機を正常に戻すには1,360.77711g/トン(3lb/トン)のG/A比0.4のポリマーが必要であり、該ポリマーを添加した結果、蒸気圧が著しく低減し、15分で82,737.0348パスカル(12psi)であった。続いて、907.18474g/トン(2lb/トン)のG/A比0.4のポリマーで基準を再度設定した後、用量を増加して1,542.214058g/トン(3.4lb/トン)のG/A比0.1のポリマーに置き換えた。用量を増加したことで、蒸気圧は約1時間かけて徐々に上昇し、抄紙機の減速を防ぐためにG/A比0.4のポリマーに再び戻すことが必要になった。1,360.777110g/トン(3.0lb/トン)のG/A比0.4のポリマーを再度加えて、蒸気圧は急速に低減し、15分で82,737.0348パスカル(12psi)となった。G/A比0.4のポリマーの用量を907.18474g/トン(2lb/トン)に減量しても、低減された蒸気圧を維持することができた。G/A比0.1のポリマーは蒸気圧を維持することができず、そのため70%増加した用量でG/A比0.4のポリマーと同じ機械速度にすることができた。G/A比0.1のポリマーをG/A比0.4のポリマーに置き換えた時に、このグレード(ミューレン及びスコットボンド(Mullen and Scott bond))の強度基準(strength specification)の変化は検知されなかった。
G/A比0.4のポリマーとG/A比0.2のポリマーの比較
ウェットエンドにおいて高濃度の紙料に2,267.96185g/トン(5lb/トン)の澱粉を添加した15,875.73295g/トン(35lb)のダンボール原紙について、これら2種のポリマーを比較した。907.184740g/トン(2.0lb/トン)のG/A比0.4のポリマーで基準を設定した後、997.903214g/トン(2.2lb/トン)のG/A比0.2のポリマーに置き換えた。この用量では、約1時間かけて34,473.7645パスカル(5psi)の穏やかな蒸気圧の増加が測定された。G/A比0.4のポリマーを再び導入すると、リールの水分が直ちに低減し、蒸気圧は10分で20,684.2587パスカル(3psi)と急速に低下した。この時点で997.903214g/トン(2.2lb/トン)のG/A比0.2のポリマーに替えると、蒸気は適度に一定に保たれ、約1時間で13,789.5058パスカル(2psi)しか増えなかった。907.18474g/トン(2lb/トン)のG/A比0.4のポリマーを再度導入した結果、蒸気圧は20分で55,158.0232パスカル(8psi)と急速に低減し、脱水が向上したことを示していた。これらの結果に基づくと、G/A比0.2のポリマーは明らかに脱水能力を示していたが、用量を10%増量した場合であっても、G/A比0.4のポリマーが達成可能な圧力を維持できなかった。さらに、G/A比0.1のポリマーとは異なり、G/A比0.2のポリマーは、G/A比0.4のポリマーと比べて蒸気要求量及び用量が増加しても、抄紙機を所望の速度で稼動させ続けることができた。3種のポリマーの試験結果は、G/A比0.4のポリマーがG/A比0.2のポリマーよりも良好な脱水効果をもたらし、同様にG/A比0.1のポリマーよりも良好な脱水効果をもたらすことを示した。G/A比0.2のポリマーをG/A比0.4のポリマーに置き換えた時に、このグレード(STFI)の強度基準の変化は検知されなかった。
G/A比0.4のポリマーとG/A比0.8のポリマーの比較
ポリマーの調製においてG/A比を増加すると脱水効果も増大するという発見に基づき、より高いG/A比0.8のポリマーを調製し、同様の抄紙機で評価した。ウェットエンドにおいて澱粉を添加していない14,968.54821g/トン(33lb)のダンボール用中芯について、G/A比0.4のポリマーとG/A比0.8のポリマーを比較した。907.184740g/トン(2.0lb/トン)のG/A比0.4のポリマーを加えた結果、蒸気圧は良好に低減し、約2時間で144,789.8109パスカル(21psi)であった。その後、907.18474g/トン(2lb/トン)のG/A比0.4のポリマーを680.388555g/トン(1.5lb/トン)のG/A比0.8のポリマーに置き換えた。用量を25%減少しても、G/A比0.8のポリマーを加えた結果、蒸気圧は更に20,684.2587パスカル(3psi)低減し、そして取り除く時には0.5時間で82,737.0348パスカル(12psi)と著しく蒸気圧が上昇した。さらにウェットエンドにおいて澱粉を添加していない11,793.40162g/トン(26lb)のダンボール用中芯について試験を行った。再度907.184740g/トン(2.0lb/トン)のG/A比0.4のポリマーで基準を設定することから開始し、907.184740g/トン(2.0lb/トン)のG/A比0.8のポリマーに置き換えた結果、60分で蒸気圧が48,263.2703パスカル(7psi)降下し、さらに10分間で用量を1,360.77711g/トン(3lb/トン)増加した場合には、蒸気圧は27,579.0116パスカル(4psi)降下した。G/A比0.8のポリマーを453.592370g/トン(1.0lb/トン)のみに減量した場合には、1,360.77711g/トン(3lb/トン)に比べて蒸気圧が増加した。しかしながら、914.40cm/分(30ft/分)機械速度を上げても、蒸気圧は907.184740g/トン(2.0lb/トン)のG/A比0.4のポリマーの値よりも55,158.0232パスカル(8psi)低かった。これらの試験結果から、G/A比0.8のポリマーが、G/A比0.4のポリマーよりも25〜50%少ない用量で同等の脱水効果を実現できることが分かった。一般的に用量は少なくても、G/A比0.8のポリマーで作成した両方の中級(コンコラ(Concorra))の強度基準は、G/A比0.4のポリマーで得られる値と同じ又はより大きい値であった。
Claims (23)
- 抄紙機上の紙シートの濾水性を高める方法であって、乾燥繊維に基づき22.6796185g/トン〜6,803.88555g/トンの1種以上の、アミノ基又はアミド基を含みアルデヒド官能基が導入されたポリマーを該紙シートに添加する工程を有し、1種以上のアルデヒドとの反応によって、該アミノ基又はアミド基の少なくとも15モル%に官能基が導入されており、該アルデヒド官能基が導入されたポリマーの重量平均分子量が少なくとも100,000g/モルであることを特徴とする方法。
- 前記アルデヒド官能基が導入されたポリマーが、アルデヒド官能基が導入されたポリアミン及びアルデヒド官能基が導入されたポリアミドからなる群より選択されることを特徴とする、請求項1に記載の方法。
- 前記アルデヒドが、ホルムアルデヒド、パラホルムアルデヒド、グリオキサール及びグルタルアルデヒドからなる群より選択されることを特徴とする、請求項1に記載の方法。
- 前記アルデヒド官能基が導入されたポリマーが、アルデヒド官能基が導入されたポリアミドであることを特徴とする、請求項1に記載の方法。
- 前記アルデヒド官能基が導入されたポリアミドが、100モル%の1種以上の非イオン性モノマーを含む、アルデヒド官能基が導入されたポリマーであることを特徴とする、請求項4に記載の方法。
- 前記アルデヒド官能基が導入されたポリアミドが、5〜99モル%の1種以上のアクリルアミドモノマー及び95モル%〜1モル%の1種以上のカチオン性、アニオン性若しくは双性イオン性モノマー又はこれらの混合物を含む、アルデヒド官能基が導入されたコポリマーであることを特徴とする、請求項4に記載の方法。
- 前記アルデヒド官能基が導入されたポリアミドが、1〜50モル%の1種以上のアニオン性モノマー及び99〜50モル%の1種以上の非イオン性モノマーを含む、アルデヒド官能基が導入されたコポリマーであることを特徴とする、請求項6に記載の方法。
- 前記アルデヒド官能基が導入されたポリアミドが、1〜30モル%の1種以上のアニオン性モノマー及び99〜70モル%の1種以上の非イオン性モノマーを含む、アルデヒド官能基が導入されたコポリマーであることを特徴とする、請求項6に記載の方法。
- 前記アルデヒド官能基が導入されたコポリマーが、最大40モル%の1種以上のカチオン性モノマー及び最大20モル%の1種以上のアニオン性モノマーを含む、アルデヒド官能基が導入された両性ポリマーであることを特徴とする、請求項6に記載の方法。
- 前記アルデヒド官能基が導入されたコポリマーが、5〜10モル%の1種以上のカチオン性モノマー及び0.5〜4モル%の1種以上のアニオン性モノマーを含む、アルデヒド官能基が導入された両性ポリマーであることを特徴とする、請求項6に記載の方法。
- 前記アルデヒド官能基が導入されたコポリマーが、1〜95モル%の1種以上の双性イオン性モノマーを含む、アルデヒド官能基が導入された双性イオン性ポリマーであることを特徴とする、請求項6に記載の方法。
- 前記アルデヒド官能基が導入されたコポリマーが、1〜50モル%の1種以上の双性イオン性モノマーを含む、アルデヒド官能基が導入された双性イオン性ポリマーであることを特徴とする、請求項6に記載の方法。
- 前記アルデヒド官能基が導入されたポリアミドが、50〜99モル%の1種以上のアクリルアミドモノマー及び50〜1モル%の1種以上のカチオン性モノマーを含む、アルデヒド官能基が導入されたコポリマーであることを特徴とする、請求項6に記載の方法。
- 前記ポリアミドの少なくとも20モル%の前記アミド基が、アルデヒドと反応したものであることを特徴とする、請求項13に記載の方法。
- 前記アルデヒド官能基が導入されたポリマーが、50〜99モル%の1種以上のアクリルアミドモノマー及び50〜1モル%の1種以上のカチオン性モノマーを含むコポリマーであって、該コポリマーにはグリオキサール官能基が導入されていることを特徴とする、請求項1に記載の方法。
- 前記カチオン性モノマーが、ジアリル−N,N−2置換ハロゲン化アンモニウムモノマーであることを特徴とする、請求項15に記載の方法。
- 前記コポリマーの20〜50モル%の前記アミド基が、グリオキサールと反応したものであることを特徴とする、請求項16に記載の方法。
- 前記非イオン性モノマーが、アクリルアミドであり、前記ジアリル−N,N−2置換ハロゲン化アンモニウムモノマーが、ジアリルジメチル塩化アンモニウムであることを特徴とする、請求項16に記載の方法。
- 前記アルデヒド官能基が導入されたポリマーの分子量が、少なくとも300,000g/モルであることを特徴とする、請求項18に記載の方法。
- 前記アルデヒド官能基が導入されたポリマーが、70〜99モル%のアクリルアミド及び1〜30モル%のジアリルジメチル塩化アンモニウムを含むコポリマーであって、グリオキサール官能基が導入されていることを特徴とする、請求項19に記載の方法。
- 前記コポリマーの20〜26モル%の前記アミド基が、グリオキサールと反応したものであることを特徴とする、請求項20に記載の方法。
- 乾燥繊維に基づき226.796185g/トン〜1,360.77711g/トンのグリオキシル化されたコポリマーを前記紙シートに添加することを特徴とする、請求項21に記載の方法。
- 加圧脱水する前に、前記アルデヒド官能基が導入されたポリマーを前記紙シート上に噴霧することを特徴とする、請求項1に記載の方法。
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| MX2007007396A (es) * | 2004-12-21 | 2007-08-14 | Hercules Inc | Resinas cationicas reactivas para usarse como agentes de resistencia secos y humedos en sistemas de fabricacion de papel que contienen iones sulfito. |
| US8753478B2 (en) * | 2005-12-29 | 2014-06-17 | Nalco Company | Creping adhesives comprising blends of high and low molecular weight resins |
| WO2008011138A1 (en) * | 2006-07-21 | 2008-01-24 | Bercen Incorporated | Paper making process using cationic polyacrylamides and crosslinking compositions for use in same |
| US7875676B2 (en) | 2006-09-07 | 2011-01-25 | Ciba Specialty Chemicals Corporation | Glyoxalation of vinylamide polymer |
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| BRPI0810314A2 (pt) * | 2007-05-09 | 2014-10-21 | Buckman Labor Inc | "emulsão de colagem de anidrido alquenil succínio, proceso para colar papel, mistura com anidrido alquenil succínico e agente emulsificante" |
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