JP2007016086A - 水溶性重合体分散液及びそれを用いた抄紙方法 - Google Patents
水溶性重合体分散液及びそれを用いた抄紙方法 Download PDFInfo
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- JP2007016086A JP2007016086A JP2005196920A JP2005196920A JP2007016086A JP 2007016086 A JP2007016086 A JP 2007016086A JP 2005196920 A JP2005196920 A JP 2005196920A JP 2005196920 A JP2005196920 A JP 2005196920A JP 2007016086 A JP2007016086 A JP 2007016086A
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- 229920003169 water-soluble polymer Polymers 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000004815 dispersion polymer Substances 0.000 title claims description 28
- 239000000178 monomer Substances 0.000 claims abstract description 76
- 125000002091 cationic group Chemical group 0.000 claims abstract description 48
- 229920000642 polymer Polymers 0.000 claims abstract description 48
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000006185 dispersion Substances 0.000 claims abstract description 31
- 239000002270 dispersing agent Substances 0.000 claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 239000012266 salt solution Substances 0.000 claims abstract description 14
- 238000012674 dispersion polymerization Methods 0.000 claims abstract description 12
- 239000000243 solution Substances 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 26
- 239000007864 aqueous solution Substances 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000011780 sodium chloride Substances 0.000 claims description 13
- 239000001257 hydrogen Substances 0.000 claims description 12
- 229910052739 hydrogen Inorganic materials 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 12
- 239000002994 raw material Substances 0.000 claims description 10
- 125000004432 carbon atom Chemical group C* 0.000 claims description 8
- 239000012986 chain transfer agent Substances 0.000 claims description 7
- 238000010790 dilution Methods 0.000 claims description 7
- 239000012895 dilution Substances 0.000 claims description 7
- 239000010419 fine particle Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 125000003545 alkoxy group Chemical group 0.000 claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- 150000001450 anions Chemical class 0.000 claims description 6
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 4
- 150000002431 hydrogen Chemical group 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 150000001768 cations Chemical class 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 125000002947 alkylene group Chemical group 0.000 claims description 2
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 claims description 2
- 125000000129 anionic group Chemical group 0.000 abstract description 14
- 238000007334 copolymerization reaction Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 description 27
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 19
- FZGFBJMPSHGTRQ-UHFFFAOYSA-M trimethyl(2-prop-2-enoyloxyethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)(C)CCOC(=O)C=C FZGFBJMPSHGTRQ-UHFFFAOYSA-M 0.000 description 15
- 229920001577 copolymer Polymers 0.000 description 11
- 150000003839 salts Chemical class 0.000 description 11
- 229910052757 nitrogen Inorganic materials 0.000 description 10
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 229920001519 homopolymer Polymers 0.000 description 8
- 239000003999 initiator Substances 0.000 description 8
- -1 dimethylaminoethyl Chemical group 0.000 description 7
- ZGCZDEVLEULNLJ-UHFFFAOYSA-M benzyl-dimethyl-(2-prop-2-enoyloxyethyl)azanium;chloride Chemical compound [Cl-].C=CC(=O)OCC[N+](C)(C)CC1=CC=CC=C1 ZGCZDEVLEULNLJ-UHFFFAOYSA-M 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 5
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 5
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 5
- 235000011130 ammonium sulphate Nutrition 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000008367 deionised water Substances 0.000 description 5
- 229910021641 deionized water Inorganic materials 0.000 description 5
- RRHXZLALVWBDKH-UHFFFAOYSA-M trimethyl-[2-(2-methylprop-2-enoyloxy)ethyl]azanium;chloride Chemical compound [Cl-].CC(=C)C(=O)OCC[N+](C)(C)C RRHXZLALVWBDKH-UHFFFAOYSA-M 0.000 description 5
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 4
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 4
- VVGQXMCHKFOTKZ-UHFFFAOYSA-N 3-(dimethylamino)butyl n,n-dimethylcarbamate Chemical compound CN(C)C(C)CCOC(=O)N(C)C VVGQXMCHKFOTKZ-UHFFFAOYSA-N 0.000 description 3
- 229920006317 cationic polymer Polymers 0.000 description 3
- 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 3
- 230000000379 polymerizing effect Effects 0.000 description 3
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 2
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 2
- RIAVQNCBHNMYFJ-UHFFFAOYSA-M 2-hydroxypropyl-dimethyl-[phenyl(prop-2-enoyloxy)methyl]azanium;chloride Chemical compound [Cl-].CC(O)C[N+](C)(C)C(OC(=O)C=C)C1=CC=CC=C1 RIAVQNCBHNMYFJ-UHFFFAOYSA-M 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-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
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 125000003647 acryloyl group Chemical group O=C([*])C([H])=C([H])[H] 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- KCXMKQUNVWSEMD-UHFFFAOYSA-N benzyl chloride Chemical compound ClCC1=CC=CC=C1 KCXMKQUNVWSEMD-UHFFFAOYSA-N 0.000 description 2
- 229940073608 benzyl chloride Drugs 0.000 description 2
- QBZPCMKUFMJWAN-UHFFFAOYSA-N benzyl-dimethyl-[3-(prop-2-enoylamino)propyl]azanium;chloride Chemical compound [Cl-].C=CC(=O)NCCC[N+](C)(C)CC1=CC=CC=C1 QBZPCMKUFMJWAN-UHFFFAOYSA-N 0.000 description 2
- PZXSLFQJOZPCJG-UHFFFAOYSA-N bis[2-(5-methyl-4,5-dihydro-1h-imidazol-2-yl)propan-2-yl]diazene;dihydrochloride Chemical compound Cl.Cl.N1C(C)CN=C1C(C)(C)N=NC(C)(C)C1=NCC(C)N1 PZXSLFQJOZPCJG-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 229920000831 ionic polymer Polymers 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- 229940050176 methyl chloride Drugs 0.000 description 2
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 2
- 229940088644 n,n-dimethylacrylamide Drugs 0.000 description 2
- YLGYACDQVQQZSW-UHFFFAOYSA-N n,n-dimethylprop-2-enamide Chemical compound CN(C)C(=O)C=C YLGYACDQVQQZSW-UHFFFAOYSA-N 0.000 description 2
- OMNKZBIFPJNNIO-UHFFFAOYSA-N n-(2-methyl-4-oxopentan-2-yl)prop-2-enamide Chemical compound CC(=O)CC(C)(C)NC(=O)C=C OMNKZBIFPJNNIO-UHFFFAOYSA-N 0.000 description 2
- RQAKESSLMFZVMC-UHFFFAOYSA-N n-ethenylacetamide Chemical compound CC(=O)NC=C RQAKESSLMFZVMC-UHFFFAOYSA-N 0.000 description 2
- ZQXSMRAEXCEDJD-UHFFFAOYSA-N n-ethenylformamide Chemical compound C=CNC=O ZQXSMRAEXCEDJD-UHFFFAOYSA-N 0.000 description 2
- WGESLFUSXZBFQF-UHFFFAOYSA-N n-methyl-n-prop-2-enylprop-2-en-1-amine Chemical compound C=CCN(C)CC=C WGESLFUSXZBFQF-UHFFFAOYSA-N 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000012673 precipitation polymerization Methods 0.000 description 2
- 125000001453 quaternary ammonium group Chemical group 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 125000001302 tertiary amino group Chemical group 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 239000007762 w/o emulsion Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229920000536 2-Acrylamido-2-methylpropane sulfonic acid Polymers 0.000 description 1
- XHZPRMZZQOIPDS-UHFFFAOYSA-N 2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(C)(C)NC(=O)C=C XHZPRMZZQOIPDS-UHFFFAOYSA-N 0.000 description 1
- MPNXSZJPSVBLHP-UHFFFAOYSA-N 2-chloro-n-phenylpyridine-3-carboxamide Chemical compound ClC1=NC=CC=C1C(=O)NC1=CC=CC=C1 MPNXSZJPSVBLHP-UHFFFAOYSA-N 0.000 description 1
- VMSBGXAJJLPWKV-UHFFFAOYSA-N 2-ethenylbenzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1C=C VMSBGXAJJLPWKV-UHFFFAOYSA-N 0.000 description 1
- AUZRCMMVHXRSGT-UHFFFAOYSA-N 2-methylpropane-1-sulfonic acid;prop-2-enamide Chemical compound NC(=O)C=C.CC(C)CS(O)(=O)=O AUZRCMMVHXRSGT-UHFFFAOYSA-N 0.000 description 1
- IRQWEODKXLDORP-UHFFFAOYSA-N 4-ethenylbenzoic acid Chemical compound OC(=O)C1=CC=C(C=C)C=C1 IRQWEODKXLDORP-UHFFFAOYSA-N 0.000 description 1
- RTANHMOFHGSZQO-UHFFFAOYSA-N 4-methoxy-2,4-dimethylpentanenitrile Chemical compound COC(C)(C)CC(C)C#N RTANHMOFHGSZQO-UHFFFAOYSA-N 0.000 description 1
- IFFCENKANLEONZ-UHFFFAOYSA-N 5-methyl-2-propan-2-yl-4,5-dihydro-1h-imidazole;dihydrochloride Chemical compound Cl.Cl.CC(C)C1=NCC(C)N1 IFFCENKANLEONZ-UHFFFAOYSA-N 0.000 description 1
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 230000009435 amidation Effects 0.000 description 1
- 238000007112 amidation reaction Methods 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 239000012024 dehydrating agents Substances 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- YIOJGTBNHQAVBO-UHFFFAOYSA-N dimethyl-bis(prop-2-enyl)azanium Chemical class C=CC[N+](C)(C)CC=C YIOJGTBNHQAVBO-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
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- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
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- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
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- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
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Landscapes
- Polymerisation Methods In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Paper (AREA)
Abstract
【解決手段】 還元粘度ηsp/c(単位:dl/g)のプロットをηsp/c=[η]+k×cの式(cは重合体濃度で単位はg/dl、[η]は固有粘度)に近似した時の係数kの値が20以下である水溶性重合体を、カチオン性水溶性単量体及び必要に応じてアニオン性単量体と、(メタ)アクリルアミド及び共重合可能な他の非イオン性水溶性単量体からなる水溶性単量体(混合物)を、塩水溶液中で該塩水溶液に可能な高分子分散剤を共存させる分散重合法により安定した分散液を製造することができる。また歩留向上剤及び/又は濾水性向上剤として地合の良好な紙を抄紙できる。
【選択図】 なし
Description
一般式(1)
R1は水素又はメチル基、R2、R3は炭素数1〜3のアルキルあるいはアルコキシル基、R4は水素、炭素数1〜3のアルキル基、アルコキシル基あるいはベンジル基であり、同種でも異種でも良い、Aは酸素又はNH、Bは炭素数2〜4のアルキレン基又はアルコキシレン基、X1は陰イオンをそれぞれ表わす。
一般式(2)
R5は水素又はメチル基、R6、R7は炭素数1〜3のアルキル基、アルコキシ基あるいはベンジル基、X2は陰イオンをそれぞれ表わす。
一般式(3)
R8は水素、メチル基又はカルボキシメチル基、AはSO3、C6H4SO3、CONHC(CH3)2CH2SO3、C6H4COOあるいはCOO、R9は水素又はCOOY2、Y1あるいはY2は水素又は陽イオンを表わす。
Claims (9)
- 重合体濃度0.1重量%以下に1規定NaCl水溶液で希釈した数点の重合体希釈液を毛細管粘度計により25℃で測定した還元粘度ηsp/c(単位:dl/g)のプロットをηsp/c=[η]+k×cの式(cは重合体濃度で単位はg/dl、[η]は固有粘度)に近似した時の係数kの値が20以下である水溶性重合体であって、該水溶性重合体が下記一般式(1)及び/又は(2)で表される単量体5〜100モル%、下記一般式(3)で表される単量体0〜50モル%、(メタ)アクリルアミド及び共重合可能な他の非イオン性水溶性単量体0〜95モル%からなる単量体(混合物)を塩水溶液中で該塩水溶液に可溶な高分子分散剤を共存させる分散重合法により製造した粒径100μm以下の微粒子の分散液であることを特徴とする水溶性重合体分散液。
一般式(1)
R1は水素又はメチル基、R2、R3は炭素数1〜3のアルキルあるいはアルコキシル基、R4は水素、炭素数1〜3のアルキル基、アルコキシル基あるいはベンジル基であり、同種でも異種でも良い、Aは酸素又はNH、Bは炭素数2〜4のアルキレン基又はアルコキシレン基、X1は陰イオンをそれぞれ表わす。
一般式(2)
R5は水素又はメチル基、R6、R7は炭素数1〜3のアルキル基、アルコキシ基あるいはベンジル基、X2は陰イオンをそれぞれ表わす
一般式(3)
R8は水素、メチル基又はカルボキシメチル基、AはSO3、C6H4SO3、CONHC(CH3)2CH2SO3、C6H4COOあるいはCOO、R9は水素又はCOOY2、Y1あるいはY2は水素又は陽イオンをそれぞれ表わす。 - 前記水溶性重合体がカチオン性であることを特徴とする請求項1に記載の水溶性重合体分散液。
- 前記水溶性重合体が両性であることを特徴とする請求項1に記載の水溶性重合体分散液。
- 前記式の係数kが10以下であることを特徴とする請求項1〜3のいずれかに記載の水溶性重合体分散液。
- 前記水溶性重合体分散液を構成する水溶性重合体の1規定NaCl水溶液中、25℃で測定した固有粘度が、10〜25dl/gであることを特徴とする請求項1〜4のいずれかに記載の水溶性重合体分散液。
- 前記水溶性重合体分散液を構成する水溶性重合体の1規定NaCl水溶液中、25℃で測定した固有粘度が、15〜25dl/gであることを特徴とする請求項1〜4のいずれかに記載の水溶性重合体分散液。
- 前記高分子分散剤がカチオン性であることを特徴とする請求項1〜6のいずれかに記載の水溶性重合体分散液。
- 前記分散重合法により製造する際に、実質的に連鎖移動剤を用いないことを特徴とする請求項1〜7のいずれかに記載の水溶性重合体分散液。
- 歩留率及び/又は濾水性を向上させることを目的として抄紙前の製紙原料中に、請求項1〜8のいずれかに記載の水溶性重合体分散液あるいはその希釈液を添加することを特徴とする抄紙方法。
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JP2010024441A (ja) * | 2008-06-19 | 2010-02-04 | Arakawa Chem Ind Co Ltd | 水溶性重合体分散液、紙力増強剤、製紙用濾水性向上剤および製紙用歩留向上剤 |
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