EP2126209A1 - Papierleimungsmittelmischungen - Google Patents
PapierleimungsmittelmischungenInfo
- Publication number
- EP2126209A1 EP2126209A1 EP07848052A EP07848052A EP2126209A1 EP 2126209 A1 EP2126209 A1 EP 2126209A1 EP 07848052 A EP07848052 A EP 07848052A EP 07848052 A EP07848052 A EP 07848052A EP 2126209 A1 EP2126209 A1 EP 2126209A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mixtures
- acid
- component
- water
- monomers
- 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.)
- Withdrawn
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 115
- 238000004026 adhesive bonding Methods 0.000 title abstract 9
- 239000006185 dispersion Substances 0.000 claims abstract description 94
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 63
- 229920000642 polymer Polymers 0.000 claims abstract description 61
- 239000002245 particle Substances 0.000 claims abstract description 42
- 239000004094 surface-active agent Substances 0.000 claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 239000000178 monomer Substances 0.000 claims description 124
- -1 alkyl ketene dimer Chemical compound 0.000 claims description 58
- 238000004513 sizing Methods 0.000 claims description 56
- 239000000123 paper Substances 0.000 claims description 54
- 229920002472 Starch Polymers 0.000 claims description 50
- 235000019698 starch Nutrition 0.000 claims description 49
- 239000008107 starch Substances 0.000 claims description 34
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 31
- 239000004908 Emulsion polymer Substances 0.000 claims description 29
- 150000003839 salts Chemical class 0.000 claims description 25
- 125000002091 cationic group Chemical group 0.000 claims description 23
- 125000004432 carbon atom Chemical group C* 0.000 claims description 20
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 18
- 239000000084 colloidal system Substances 0.000 claims description 18
- 239000002253 acid Substances 0.000 claims description 17
- 239000002270 dispersing agent Substances 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 16
- 150000001298 alcohols Chemical class 0.000 claims description 13
- 125000000129 anionic group Chemical group 0.000 claims description 13
- 230000001804 emulsifying effect Effects 0.000 claims description 12
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 claims description 12
- 229920002554 vinyl polymer Polymers 0.000 claims description 12
- 239000003945 anionic surfactant Substances 0.000 claims description 11
- 150000001735 carboxylic acids Chemical class 0.000 claims description 11
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 11
- 229920000881 Modified starch Polymers 0.000 claims description 10
- 235000019426 modified starch Nutrition 0.000 claims description 10
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 9
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 9
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 9
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 8
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 claims description 8
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 8
- 239000003995 emulsifying agent Substances 0.000 claims description 8
- 230000000379 polymerizing effect Effects 0.000 claims description 8
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical group C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 claims description 7
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical compound CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 claims description 7
- 239000003093 cationic surfactant Substances 0.000 claims description 7
- UYMKPFRHYYNDTL-UHFFFAOYSA-N ethenamine Chemical compound NC=C UYMKPFRHYYNDTL-UHFFFAOYSA-N 0.000 claims description 7
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 7
- 239000011976 maleic acid Substances 0.000 claims description 7
- 239000002736 nonionic surfactant Substances 0.000 claims description 7
- 229920001515 polyalkylene glycol Polymers 0.000 claims description 7
- 229920001567 vinyl ester resin Polymers 0.000 claims description 7
- 125000005250 alkyl acrylate group Chemical group 0.000 claims description 6
- 150000008064 anhydrides Chemical class 0.000 claims description 6
- 229920006395 saturated elastomer Polymers 0.000 claims description 6
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 claims description 5
- FOGYNLXERPKEGN-UHFFFAOYSA-N 3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfopropyl)phenoxy]propane-1-sulfonic acid Chemical compound COC1=CC=CC(CC(CS(O)(=O)=O)OC=2C(=CC(CCCS(O)(=O)=O)=CC=2)OC)=C1O FOGYNLXERPKEGN-UHFFFAOYSA-N 0.000 claims description 5
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical class C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 claims description 5
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 claims description 5
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 5
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 claims description 5
- 150000002825 nitriles Chemical class 0.000 claims description 5
- 238000010526 radical polymerization reaction Methods 0.000 claims description 5
- NJSSICCENMLTKO-HRCBOCMUSA-N [(1r,2s,4r,5r)-3-hydroxy-4-(4-methylphenyl)sulfonyloxy-6,8-dioxabicyclo[3.2.1]octan-2-yl] 4-methylbenzenesulfonate Chemical compound C1=CC(C)=CC=C1S(=O)(=O)O[C@H]1C(O)[C@@H](OS(=O)(=O)C=2C=CC(C)=CC=2)[C@@H]2OC[C@H]1O2 NJSSICCENMLTKO-HRCBOCMUSA-N 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 claims description 4
- 239000001530 fumaric acid Substances 0.000 claims description 4
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 claims description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 3
- 150000002484 inorganic compounds Chemical class 0.000 claims description 3
- 229910010272 inorganic material Inorganic materials 0.000 claims description 3
- 239000002105 nanoparticle Substances 0.000 claims description 3
- 229920000620 organic polymer Polymers 0.000 claims description 3
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 3
- 102000004169 proteins and genes Human genes 0.000 claims description 3
- 108090000623 proteins and genes Proteins 0.000 claims description 3
- 229920003169 water-soluble polymer Polymers 0.000 claims description 3
- 229920002125 Sokalan® Polymers 0.000 claims description 2
- 229920001038 ethylene copolymer Polymers 0.000 claims description 2
- 229920000371 poly(diallyldimethylammonium chloride) polymer Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims description 2
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 2
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 claims 1
- 239000000839 emulsion Substances 0.000 abstract description 9
- 238000004945 emulsification Methods 0.000 abstract description 6
- 238000006116 polymerization reaction Methods 0.000 description 39
- 229920001577 copolymer Polymers 0.000 description 28
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 23
- 235000019441 ethanol Nutrition 0.000 description 15
- 239000000243 solution Substances 0.000 description 14
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 14
- 238000007720 emulsion polymerization reaction Methods 0.000 description 13
- 239000003381 stabilizer Substances 0.000 description 13
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 239000003999 initiator Substances 0.000 description 11
- 238000002360 preparation method Methods 0.000 description 11
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 10
- 150000002148 esters Chemical class 0.000 description 10
- ZQXSMRAEXCEDJD-UHFFFAOYSA-N n-ethenylformamide Chemical compound C=CNC=O ZQXSMRAEXCEDJD-UHFFFAOYSA-N 0.000 description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 9
- 239000004815 dispersion polymer Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- YAXXOCZAXKLLCV-UHFFFAOYSA-N 3-dodecyloxolane-2,5-dione Chemical class CCCCCCCCCCCCC1CC(=O)OC1=O YAXXOCZAXKLLCV-UHFFFAOYSA-N 0.000 description 8
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 8
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- 150000007513 acids Chemical class 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- 239000012966 redox initiator Substances 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 239000004480 active ingredient Substances 0.000 description 6
- 239000013543 active substance Substances 0.000 description 6
- 229910021529 ammonia Inorganic materials 0.000 description 6
- 229920006320 anionic starch Polymers 0.000 description 6
- 230000007062 hydrolysis Effects 0.000 description 6
- 238000006460 hydrolysis reaction Methods 0.000 description 6
- 230000002209 hydrophobic effect Effects 0.000 description 6
- 229920001223 polyethylene glycol Polymers 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 5
- 230000002378 acidificating effect Effects 0.000 description 5
- 239000012736 aqueous medium Substances 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 5
- 239000002585 base Substances 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000009477 glass transition Effects 0.000 description 5
- FXNDIJDIPNCZQJ-UHFFFAOYSA-N 2,4,4-trimethylpent-1-ene Chemical compound CC(=C)CC(C)(C)C FXNDIJDIPNCZQJ-UHFFFAOYSA-N 0.000 description 4
- 229920000945 Amylopectin Polymers 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 150000001336 alkenes Chemical class 0.000 description 4
- 150000003863 ammonium salts Chemical class 0.000 description 4
- 235000010323 ascorbic acid Nutrition 0.000 description 4
- 229960005070 ascorbic acid Drugs 0.000 description 4
- 239000011668 ascorbic acid Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 150000001991 dicarboxylic acids Chemical class 0.000 description 4
- 239000000539 dimer Substances 0.000 description 4
- 150000002191 fatty alcohols Chemical class 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 150000002432 hydroperoxides Chemical class 0.000 description 4
- 125000001841 imino group Chemical group [H]N=* 0.000 description 4
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 4
- 238000006386 neutralization reaction Methods 0.000 description 4
- 239000003505 polymerization initiator Substances 0.000 description 4
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 4
- 239000011541 reaction mixture Substances 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 4
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical group CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 3
- 239000004971 Cross linker Substances 0.000 description 3
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 229920002873 Polyethylenimine Polymers 0.000 description 3
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 3
- 235000011054 acetic acid Nutrition 0.000 description 3
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 3
- 125000001931 aliphatic group Chemical group 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- 125000003342 alkenyl group Chemical group 0.000 description 3
- 239000011111 cardboard Substances 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- UIWXSTHGICQLQT-UHFFFAOYSA-N ethenyl propanoate Chemical compound CCC(=O)OC=C UIWXSTHGICQLQT-UHFFFAOYSA-N 0.000 description 3
- 238000007046 ethoxylation reaction Methods 0.000 description 3
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 150000002763 monocarboxylic acids Chemical class 0.000 description 3
- 230000007935 neutral effect Effects 0.000 description 3
- 150000007524 organic acids Chemical class 0.000 description 3
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 3
- 229920001592 potato starch Polymers 0.000 description 3
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 3
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 3
- OSSNTDFYBPYIEC-UHFFFAOYSA-N 1-ethenylimidazole Chemical compound C=CN1C=CN=C1 OSSNTDFYBPYIEC-UHFFFAOYSA-N 0.000 description 2
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 description 2
- DPBJAVGHACCNRL-UHFFFAOYSA-N 2-(dimethylamino)ethyl prop-2-enoate Chemical compound CN(C)CCOC(=O)C=C DPBJAVGHACCNRL-UHFFFAOYSA-N 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 2
- AGBXYHCHUYARJY-UHFFFAOYSA-N 2-phenylethenesulfonic acid Chemical group OS(=O)(=O)C=CC1=CC=CC=C1 AGBXYHCHUYARJY-UHFFFAOYSA-N 0.000 description 2
- KFNGWPXYNSJXOP-UHFFFAOYSA-N 3-(2-methylprop-2-enoyloxy)propane-1-sulfonic acid Chemical compound CC(=C)C(=O)OCCCS(O)(=O)=O KFNGWPXYNSJXOP-UHFFFAOYSA-N 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 2
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-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
- 229920002261 Corn starch Polymers 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- 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 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical compound C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
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- SWAXTRYEYUTSAP-UHFFFAOYSA-N tert-butyl ethaneperoxoate Chemical compound CC(=O)OOC(C)(C)C SWAXTRYEYUTSAP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/18—Homopolymers or copolymers of nitriles
- C09J133/20—Homopolymers or copolymers of acrylonitrile
-
- 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
- D21H17/17—Ketenes, e.g. ketene dimers
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- 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
- D21H17/71—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes
- D21H17/72—Mixtures of material ; Pulp or paper comprising several different materials not incorporated by special processes of organic material
-
- 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
- D21H21/16—Sizing or water-repelling agents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
- C08L2666/26—Natural polymers, natural resins or derivatives thereof according to C08L1/00 - C08L5/00, C08L89/00, C08L93/00, C08L97/00 or C08L99/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
Definitions
- the invention relates to paper size mixtures of a water-dispersed reactive size and a polymer.
- the dispersing of the alkyldiketenes can additionally be carried out in the presence of lignosulfonic acid, condensates of naphthalenesulfonic acid and formaldehyde, polymers containing styrenesulfonic acid groups or their alkali metal and / or ammonium salts.
- the average particle diameter of the water-dispersed alkyldiketenes is 0.5 to 2.5 ⁇ m, preferably 0.8 to 1.5 ⁇ m. According to the information in the examples, it is always above 1 ⁇ m.
- the mixtures are prepared by ketendispersion an alkyl di- with a polymer dispersion mixed or in that one emulsified alkyldiketenes at a temperature of at least 70 0 C in a mixture, the finely divided aqueous suspensions of cationic starch having an amylopectin content of at least 98%, and , aqueous polymer dispersions.
- Such mixtures consist of two different types of particles, namely particles of alkyl diketene and particles of emulsion polymer.
- WO 2004/037867 discloses aqueous polymer dispersions comprising alkyldiketenes which are obtainable by miniemulsion polymerization of hydrophobic monoethylenically unsaturated monomers in the presence of alkylketene dimers.
- a single particle dispersed in water contains both alkyl ketene dimer and hydrophobic polymer.
- the average particle diameter is in the range from 50 to 500 nm, preferably 50 to 200 nm.
- Correspondingly constructed polymer dispersions which contain alkenylsuccinic anhydrides instead of alkylketene dimers are known from WO 2005/070912. They are prepared by polymerizing hydrophobic monomers in the manner of a miniemulsion polymerization in the presence of alkenylsuccinic anhydrides and optionally additionally alkylketene dimers.
- WO 2004/022847 discloses the use of polymers containing vinylamine units as a promoter for the size sizing of paper.
- aqueous dispersions which contain stearyl diketene, cationic starch and polyvinylamine.
- the subject of the earlier EP application 06 115 714.5 is a process for the preparation of at least one lipophilic active substance-containing aqueous polymer dispersions by emulsion polymerization of ethylenically unsaturated monomers in an aqueous medium in the presence of at least one lipophilic active ingredient, wherein
- At least one lipophilic active ingredient having a water solubility of at most 5 g / l (determined at 25 ° C and 1013 mbar) and a melting point below 130 0 C, in an aqueous solution containing at least one dispersion stabilizer, with formation an aqueous dispersion of the active ingredient having an average particle size of at most 1000 nm, preferably at most 500 nm, emulsified and
- the particles of the aqueous polymer dispersions contain, for example, when using alkyl ketene dimer as the active ingredient both alkyl ketene dimer and emulsion polymer and have an average particle diameter of at most 1000 nm.
- the invention has for its object to provide other products for paper sizing available, which cause the fastest possible training of sizing.
- the object is achieved according to the invention with bleach mixtures of a water-dispersed reactive sizing agent and a polymer, wherein they are obtainable by mixing
- A an aqueous dispersion of a reactive sizing agent whose dispersed particles have an average particle diameter of less than 500 nm, wherein the dispersion is obtainable by emulsifying at least one reactive sizing agent in water in the presence of at least one surfactant, and (b) at least one emulsion polymer and / or at least one water-soluble polymer which does not disperse reactive wetting agents and / or a water-dispersible polymer.
- component (a) of the mixtures is an aqueous dispersion of a reactive sizing agent whose dispersed particles have an average particle diameter of at most 300 nm.
- Component (a) of the mixtures contains, as a reactive sizing agent, an aqueous aqueous dispersion of an alkyl ketene dimer and / or an alkenyl succinic anhydride having an average particle size of the dispersed particles of, for example, 30 to 300 nm.
- the weight ratio of components (a) and (b) in the mixture is, for example, 1: 100 to 100: 1 and is preferably in the range from 1:20 to 20: 1. Particularly preferred are paper size mixtures which are used as component
- (B) at least one emulsion polymer having a mean particle diameter of 100 nm highest.
- Suitable alkyl ketene dimers are preferably C 4 - to C 22 -alkyl- or alkenyl-diketenes. They are prepared for example from the corresponding carboxylic acid chlorides by elimination of hydrogen chloride with tertiary amines.
- the ketene dimers which can be used according to the invention can carry saturated or unsaturated, branched or cyclic hydrocarbon radicals.
- alkyl ketene dimers examples include tetradecyldiketene, hexadecyldiketene, octadecyldiketene, docosyldiketen, palmityldiketen, oleyldiketen, stearyldiketen and behenyldiketen.
- Alkenylsuccinic anhydrides are described in detail in, for example, US Pat. No. 3,102,064, EP-A 0 609 879 and EP-A 0 593 075. All alkenylsuccinic anhydrides which have hitherto been described in the literature as engine size agents for paper are also suitable according to the invention as active ingredient, either alone or in combination with alkyldiketenes.
- Suitable alkenylsuccinic anhydrides in the alkenyl group contain an alkyl radical having at least 6 C atoms, preferably a C 4 - to C 24 -olefin radical.
- Particularly preferred alkenyl succinic anhydrides contain 16 to 22, usually 16 to 18 C atoms in the alkenyl group.
- Alkenylsuccinic anhydrides are accessible for example from ⁇ -olefins, which are first isomerized. In this case, a mixture of different isomers is obtained, which is then reacted with maleic anhydride in the manner of an ene reaction to succinic anhydrides.
- Alkenylsuccinic anhydrides are prepared according to EP-A 0 593 075 by reaction of propylene or n-butylene oligomers with maleic anhydride.
- Examples of this group of reactive sizing agents are decenylsuccinic anhydride, dodecenylsuccinic anhydride, octene nylbernsteinklareanhydrid and n-Hexadecenylbernsteinklahydrid.
- the individual isomeric succinic anhydrides can have different sizing effect.
- 2- and 3-hexadecenyl succinic anhydrides are not as effective as mass sizing agents as the isomeric 4-, 5-, 6-, 7- and 8-hexadecenyl succinic anhydrides.
- the eligible reactive sizes are dispersed in water for the preparation of component (a) of the mixtures according to the invention. They are preferably first melted and then emulsified as a melt in water in the presence of a surfactant which acts as a dispersion stabilizer.
- the emulsifying of the reactive sizing agent can be carried out, for example, by high-pressure emulsification in the devices known for this purpose, with the aid of the action of ultrasound or by the action of strong shearing forces, for example with the aid of an Ultra-Turrax® device.
- the temperature of the system may be from 0 to 130 ° C., preferably up to 100 ° C.
- Most of the reactive size agents are emulsified in the temperature range of 5 to 95 0 C in water containing at least one surfactant. If temperatures above 100 ° C. are used, the emulsification step is carried out under elevated pressure in pressure-tight apparatus.
- the temperature should be at least 5 0 C, preferably at least 10 0 C above the melting point or above the incipient softening range of the respective reactive sizing agent.
- the resultant oil-in-water emulsion of the reactive mixture is cooled, and it was mostly to the respective ambient temperature, for example 10 to 30 0 C.
- the reactive size agents used are preferably alkylketene dimers.
- the mean diameter of the emulsified particles of the reactive sizing agent is less than 500 nm, preferably at most 300 nm, and is usually in the range from 30 to 300 nm, in particular from 40 to 200 nm.
- the particle sizes of the emulsified reactive sizing agents indicated here are weight-average particle sizes. as they can be determined by dynamic light scattering. Methods for this purpose are familiar to the person skilled in the art, for example from H. Wiese in D. Distler, Aqueous Polymer Dispersions, Wiley-VCH 1999, Chapter 4.2.1, p 40ff and literature cited therein and H. Auweter, D. Horn, J. Colloid Interf , Be. 105 (1985) 399, D. Lie, D.
- the reactive sizing agent In order to obtain the most stable dispersion or emulsion of the reactive sizing agent, it is preferably emulsified in the presence of at least one surfactant as a dispersion stabilizer. In most cases, at least one surfactant is first dissolved in water and then the molten reactive sizing agent is first added. However, it is also possible to add the surfactant only during emulsification or afterwards. The addition of the surfactant can be carried out continuously, in stages or at once. This gives a dispersion which z. B. 0.01 to 20 wt .-%, preferably 0.1 to 10 wt .-% and usually 0.2 to 5 wt .-% of at least one surfactant.
- the content of reactive sizing agent in the aqueous dispersion may be, for example, 1 to 60% by weight, preferably 10 to 50% by weight. It is usually in the range of 15 to 30% by weight.
- the surfactants which are suitable as dispersion stabilizers may be, for example, cationic, anionic, amphoteric or nonionic. It is possible to use a surfactant from a single group of said surfactants or mixtures of surfactants which are compatible with each other, i. which are stable next to each other in an aqueous medium and do not form precipitates, for example mixtures of at least one nonionic and at least one anionic surfactant, mixtures of at least one nonionic and at least one cationic surfactant, mixtures of at least two cationic surfactants, mixtures of at least two anionic surfactants or mixtures of at least two nonionic surfactants.
- a dispersion stabilizer in addition to a surfactant, a protective colloid and / or a dispersant can additionally be used.
- a surfactant in addition to a surfactant, a protective colloid and / or a dispersant can additionally be used.
- a protective colloid and / or a dispersant can additionally be used.
- mixtures of at least one surfactant and at least one dispersant or mixtures of at least one surfactant, at least one dispersant and at least one protective colloid are suitable.
- Suitable surfactants are, for example, all surfactants.
- nonionic surfactants are ethoxylated mono-, di- and tri-alkylphenols (degree of ethoxylation: 3 to 50, alkyl radical: C3-C12) and also ethoxylated fatty alcohols (degree of ethoxylation: 3 to 80, alkyl radical: C8-C36).
- suitable nonionic surfactants include the brands Lutensol ® from BASF AG or the Triton ® brands from Union Carbide.
- Particularly preferred are ethoxylated linear fatty alcohols of the general formula
- x are integers in the range of 10 to 24, preferably in the range of 12 to 20.
- the variable y preferably stands for integers in the range of 5 to 50, more preferably 8 to 40.
- Ethoxylated linear fatty alcohols are usually as Mixture of different ethoxylated fatty alcohols with different degree of ethoxylation ago.
- the variable y in the context of the present invention stands for the mean value (number average).
- Suitable nonionic surface-active substances are also copolymers, in particular block copolymers of ethylene oxide and at least one C 3 -C 10 -alkylene oxide, for example triblock copolymers of the formula
- A is a radical derived from an aliphatic, cycloaliphatic or aromatic diol, e.g. for ethane-1, 2-diyl, propane-1, 3-diyl, butane-1, 4-diyl, cyclohexane-1, 4-diyl, cyclohexane-1, 2-diyl or bis (cylohexyl) methane-4 , 4'-diyl, B and B 'independently of one another propan-1, 2-diyl, butane-1, 2-diyl or Phe- nylethanyl y2 and y3 independently represent a number from 2 to 100, y1 and y4 independently from each other represent a number from 2 to 100, wherein the sum y1 + y2 + y3 + y4 is preferably in the range of 20 to 400, which corresponds to a number average molecular weight in the range of 1000 to
- Suitable surface-active substances besides the nonionic surfactants are anionic and cationic surfactants. They can be used alone or as a mixture. The prerequisite for this, however, is that they are compatible with each other. This requirement applies, for example, to mixtures of one compound class in each case and to mixtures of nonionic and anionic surfactants and mixtures of nonionic and cationic surfactants.
- suitable anionic surfactants are sodium lauryl sulfate, sodium dodecyl sulfate, sodium hexadecyl sulfate and sodium dioctyl sulfosuccinate.
- cationic surfactants are quaternary alkylammonium salts, alkylbenzylammonium salts, such as dimethyl-C 2 - to cis-alkylbenzylammonium chlorides, primary, secondary and tertiary fatty amine salts, quaternary amidoamine compounds, alkylpyridinium salts, alkylimidazolinium salts and alkyloxazolinium salts.
- anionic surfactants such as. B. with sulfuric acid esterified (optionally alkoxylated) alcohols, which are usually used in neutralized with alkali lye form.
- Further customary emulsifiers are, for example, sodium alkyl sulfonates, sodium alkyl sulfates, such as, for example, sodium.
- sodium lauryl sulfate, sodium dodecylbenzene sulfonate, sulfosuccinic can be used as anionic emulsifiers and esters of phosphoric acid or phosphorous acid and aliphatic or aromatic see carboxylic acids can be used.
- the component (a) of the paper size mixtures is preferably obtainable by emulsifying a reactive sizing agent in the presence of a surfactant and at least one dispersant and / or at least one protective colloid.
- dispersants are, for example, condensates of naphthalenesulfonic acid and formaldehyde, condensates of a salt of naphthalenesulfonic acid or ligninsulfonic acid or salts thereof.
- Suitable salts of naphthalenesulfonic acid and lignosulfonic acid are preferably the products completely or partially neutralized with sodium hydroxide solution, potassium hydroxide solution, ammonia or calcium hydroxide.
- amphiphilic polymers or nanoparticles of water-insoluble organic polymers or of water-insoluble inorganic compounds can also be used as dispersants.
- Stabilizers of this type are, for example, nanoscale silica and nanoscale alumina.
- the component (a) of the mixtures according to the invention is therefore obtainable by emulsifying a reactive sizing agent in the presence of a surfactant and at least one dispersant selected from the group consisting of condensates of naphthalenesulfonic acid and / or salts and formaldehyde, lignosulfonic acid or its salts, amphiphilic polymers and / or nanoparticles organic polymers or inorganic compounds.
- amphiphilic polymers used as dispersants may have an average molecular weight Mw of, for example, 1000 to 100,000. They are used in combination with a surfactant as a dispersion stabilizer. Examples of amphiphilic polymers are copolymers comprising units of
- hydrophobic monoethylenically unsaturated monomers and (ii) monoethylenically unsaturated carboxylic acids, monoethylenically unsaturated sulfonic acids, monoethylenically unsaturated phosphonic acids or mixtures thereof and / or basic monomers
- Suitable hydrophobic monoethylenically unsaturated monomers for preparing the amphiphilic polymers are, for example
- styrene methylstyrene, ethylstyrene, acrylonitrile, methacrylonitrile, C 2 to C 6 olefins, esters of monoethylenically unsaturated C 3 to C 8 carboxylic acids and monohydric alcohols, vinyl alkyl ethers, vinyl esters or mixtures thereof.
- Isobutene, diisobutene is preferably used from this group of monomers.
- Styrene and acrylic acid esters such as ethyl acrylate, isopropyl acrylate, n-butyl acrylate and sec-butyl acrylate.
- the amphiphilic copolymers are preferably contained as hydrophilic monomers
- the acidic monomers may be in the form of the free acids or in partially or completely neutralized form.
- hydrophilic monomers are basic monomers. They may be polymerized with the hydrophobic monomers (i) alone or in admixture with the above acidic monomers. When mixtures of basic and acidic monomers are used, amphoteric copolymers are formed, which are anionically or cationically charged, depending on the molar ratio of the copolymerized acidic to basic monomers.
- Basic monomers are, for example, di-C 1 to C 2 -alkylamino-C 2 to C 4 -alkyl (meth) acrylates or diallyldimethylammonium chloride.
- the basic monomers may be in the form of the free bases, the salts with organic or inorganic acids or in the form quaternized with alkyl halides.
- the salt formation or the quaternization, at which the basic monomers become cationic, can be partial or complete.
- Examples of such compounds are dimethylaminoethyl methacrylate, diethylaminoethyl methacrylate, dimethylaminoethyl acrylate, diethylaminoethyl acrylate, dimethylaminopropyl methacrylate, dimethylaminopropyl acrylate, diethylaminopropyl methacrylate, diethylaminopropyl acrylate and / or dimethylaminoethylacrylamide, dimethylaminoethylmethacrylamide, dimethylaminopropylacrylamide, dimethylaminopropylmethacrylamide and / or diallyldimethylammonium chloride.
- amphiphilic copolymers in the form of the free acid are not sufficiently soluble in water, they are used in the form of water-soluble salts, for. B. using the corresponding alkali metal, alkaline earth metal and ammonium salts.
- These salts are prepared, for example, by partial or complete neutralization of the free acid groups of the amphiphilic copolymers with bases, e.g. For example, sodium hydroxide solution, potassium hydroxide solution, magnesium oxide, ammonia or amines such as triethanolamine, ethanolamine, morpholine, triethylamine or butylamine are used for neutralization.
- bases e.g.
- bases e.g.
- the acid groups of the amphiphilic copolymers are neutralized with ammonia or sodium hydroxide solution.
- the water solubility of basic monomers or of copolymers which contain such monomers in copolymerized form can be increased by partial or complete neutralization with a mineral acid such as hydrochloric acid or sulfuric acid or by addition of an organic acid such as acetic acid or p-toluenesulfonic acid.
- a mineral acid such as hydrochloric acid or sulfuric acid
- an organic acid such as acetic acid or p-toluenesulfonic acid.
- the acid numbers of the amphiphilic copolymers are, for example, 50 to 500, preferably 150 to 350 mg KOH / g of polymer.
- copolymers may optionally contain, as further monomers (iii), units of maleic monoesters in copolymerized form.
- Such copolymers are obtainable, for example, by copolymerizing copolymers of styrene, diisobutene or isobutene or mixtures thereof with maleic anhydride in the absence of water and reacting the copolymers with alcohols after the polymerization, with from 5 to 50 per mole of anhydride groups in the copolymer Mol% of a monohydric alcohol.
- Suitable alcohols are, for example, methanol, ethanol, n-propanol, isopropanol, n-butanol, isobutanol and tert-butanol.
- polyhydric alcohols such as glycol or glycerol.
- the reaction is carried out only to the extent that only one OH group of the polyhydric alcohol reacts with the anhydride group. If the anhydride groups of the copolymers are not completely reacted with alcohols, the ring opening of the anhydride groups not reacted with alcohols is effected by addition of water.
- Suitable dispersion stabilizers are mixtures of at least one surfactant and, for example, commercially available polymers of monoethylenically unsaturated acids and also graft polymers of N-vinylformamide on polyalkylene glycols, which are described, for example, in WO 96/34903.
- the grafted vinylformamide units may optionally be hydrolyzed to form vinylamine units.
- the proportion of grafted vinylformamide units is preferably 20 to 40 wt .-%, based on polyalkylene glycol. Polyethylene glycols having molecular weights of 2,000 to 10,000 are preferably used.
- Suitable dispersion stabilizers are mixtures of at least one surfactant and zwitterionic polyalkylenepolyamines and / or zwitterionic polyethyleneimines.
- Such compounds are known for example from EP-B 0 1 12 592. They are obtainable, for example, by first alkoxylating a polyalkylene polyamine or polyethyleneimine, eg. For example, with ethylene oxide, propylene oxide and / or butylene oxide and the alkoxylation subsequently quaternized, eg with methyl bromide or dimethyl sulfate and the quaternized, alkoxylated products then sulfated with chlorosulfonic acid or sulfur trioxide.
- the molar mass of the zwitterionic polyalkylenepolyamines is, for example, 1000 to 9000, preferably 1500 to 7500.
- the zwitterionic polyethyleneimines preferably have molecular weights in the range from 1500 to 7500 daltons.
- Component (a) of the paper size mixtures is also advantageously obtainable by emulsifying a reactive sizing agent in the presence of a surfactant and at least one protective colloid, which is for example selected from
- the protective colloids generally have average molecular weights M w of above 500, preferably of more than 1000 to at most 100 000, usually up to 60 000.
- water-soluble cellulose derivatives such as carboxymethylcellulose and graft polymers of vinyl acetate and / or Vinyl propionate on polyethylene glycols and / or polysaccharides into consideration.
- Water-soluble starches, starch derivatives and proteins are described, for example, in Römpp, Chemie Lexikon 9th Edition, Volume 5, page 3569 or in Houben-Weyl, Methods of Organic Chemistry, 4th Edition, Volume 14/2, Chapter IV Conversion of Cellulose and Starch of E. Husemann and R. Werner, pages 862-915 and in Ullmann's Encyclopedia for Industrial Chemistry, 6th edition, volume 28, pages 533 ff under polysaccharides.
- Suitable protective colloids are in particular all types of water-soluble starch, for.
- water-soluble starch for.
- amylose and amylopectin native starches, hydrophobically or hydrophilically modified starches, anionic starches, cationically modified starches, maltodextri- ne, degraded starches, wherein the starch degradation can be carried out, for example, oxidatively, thermally, hydrolytically or enzymatically and wherein for the starch degradation both native and modified starches can be used.
- Other suitable protective colloids are dextrins and crosslinked water-soluble starches which are water-swellable.
- the molecular weight degradation is preferably carried out enzymatically.
- the average molecular weight M w of the degraded starches is, for example, 500 to 100,000, preferably 1,000 to 30,000.
- the degraded starches have, for example, an intrinsic viscosity [ ⁇ ] of 0.04 to 0.5 dl / g.
- Such starches are described, for example, in EP-B 0 257 412 and in EP-B 0 276 770.
- protective colloids are used in the polymerization, the amounts used are, for example, from 0.5 to 50, in particular from 5 to 40, preferably from 10 to 30,% by weight, based on the monomers used in the polymerization.
- Particularly preferred dispersion stabilizers are combinations of at least one surfactant and at least one degraded native starch or at least one water-soluble cationic starch and mixtures of at least one surfactant and a dispersant of a condensate of naphthalenesulfonic acid and formaldehyde.
- the condensates of naphthalenesulfonic acid and formaldehyde may optionally be modified by condensing urea.
- the condensates can be used in the form of the free acids as well as in partially or completely neutralized form.
- Suitable neutralizing agents are preferably sodium hydroxide solution, potassium hydroxide solution, ammonia, sodium bicarbonate, sodium carbonate or potassium carbonate.
- Lignosulfonic acid or its salts are also suitable as dispersants.
- calcium hydroxide or calcium oxide is also suitable for the partial or complete neutralization of lignin sulfonic acid.
- the component (a) of the mixtures according to the invention is preferably obtainable by emulsifying a reactive sizing agent in the presence of an anionic surfactant and at least one dispersant of a condensate of naphthalenesulfonic acid and formaldehyde and optionally at least one protective colloid.
- the aqueous dispersions of a reactive sizing agent described above are stable. They are mixed with at least one aqueous dispersion of an emulsion polymer of at least one ethylenically unsaturated monomer (component (b) of the mixtures according to the invention) to prepare the paper size compositions of the invention.
- the mixing of the dispersions can be carried out, for example, in a container in which, for example, component (a) is introduced into the mixture (dispersion of a reactive sizing agent) and the aqueous dispersion of an emulsion polymer (component (b)) is metered in with stirring.
- Component (b) can be added continuously, stepwise or all at once to the original.
- the mixtures according to the invention are also obtainable if the component (b) is initially introduced in a container and the component (a) is metered into the original continuously, in stages or at once. Likewise it is possible both To combine components continuously with the help of a two-fluid nozzle or a static mixer.
- the temperature can fluctuate during the mixing process in a wide range. It is, for example, at 10 to 95, usually at 15 to 60 0 C.
- the mixing of the two components (a) and (b) takes place at the respective room temperature.
- An aqueous dispersion is obtained in which the dispersed constituents of components (a) and (b) are present separately next to one another.
- the weight ratio of components (a) and (b) in the mixtures according to the invention is in particular 5: 1 to 1: 5.
- these dispersions are an anionic or cationic charge or are not charged.
- the pH of the aqueous dispersions of the reactive sizes is, for example, 2 to 7, preferably 3 to 5.
- Aqueous dispersions of emulsion polymers of at least one ethylenically unsaturated monomer (component (b) of the mixtures according to the invention) are known. They are prepared by polymerizing the monomers in an aqueous medium in the presence of surfactants and radical-forming polymerization initiators.
- Suitable emulsion polymers are, for example, polymers comprising at least 40% by weight of so-called main monomers selected from C 1 - to C 20 -alkyl (meth) acrylates, vinyl esters of saturated carboxylic acids containing up to 20 C atoms, vinylaromatics having bis to 20 carbon atoms, ethylenically unsaturated nitriles, vinyl halides, vinyl ethers containing from 1 to 10 C-atoms alcohols, aliphatic hydrocarbons having 2 to 8 carbon atoms and one or two double bonds or mixtures of these monomers are built up.
- main monomers selected from C 1 - to C 20 -alkyl (meth) acrylates, vinyl esters of saturated carboxylic acids containing up to 20 C atoms, vinylaromatics having bis to 20 carbon atoms, ethylenically unsaturated nitriles, vinyl halides, vinyl ethers containing from 1 to 10 C-atoms alcohols, ali
- the emulsion polymers are preferably a polymer which consists of at least 70% by weight, particularly preferably at least 95% by weight, of so-called main monomers which are emulsifiable in water.
- Suitable monomers of this type are also vinyl and allyl esters of saturated aliphatic car- carboxylic acids having 1 to 18 carbon atoms, for example vinyl acetate, vinyl propionate and the vinyl esters of Versatic® acids (vinyl versatates), vinyl halides such as vinyl chloride and vinylidene chloride and C 2 -C 6 -olefins such as ethylene, propene, 1-butene and n-hexene.
- Preferred monomers are vinylaromatic monomers, C 2 -C 18 -alkyl acrylates, in particular C 2 -C 8 -alkyl acrylates, especially tert-butyl acrylate, and C 2 -C 18 -alkyl methacrylates and in particular C 2 -C 4 -alkyl methacrylates.
- At least 60% by weight of the main monomers used in the emulsion polymerization are selected from vinylaromatic monomers, in particular styrene, esters of methacrylic acid with C 2 -C 4 alkanols and tert-butyl acrylate.
- Particularly preferred monomers of this type are vinyl aromatic monomers, especially styrene, and mixtures of vinyl aromatic monomers with the above-mentioned C2-C8 alkyl acrylates and / or C2-C4 alkyl methacrylates.
- the monomer composition may further contain up to 20% by weight, based on the total weight of the monomers, of one or more monoethylenically unsaturated monomers (v) other than the main monomers (iv).
- the proportion of monomers (v) in the total amount of monomers is preferably 15% by weight, in particular up to 5% by weight.
- the monomers (v) are used only in amounts such that the resulting polymers are insoluble in water, so that one always receives dispersions.
- the monomers (v) include in particular monoethylenically unsaturated monomers which have at least one acid group such as a sulfonic acid, a phosphonic acid or one or two carboxyl groups and the salts of these monomers, in particular the alkali metal salts, for.
- the alkali metal salts for.
- sodium or potassium salts and ammonium salts as the sodium or potassium salts and ammonium salts.
- This group of monomers (v) includes ethylenically unsaturated sulfonic acids, in particular vinylsulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid, 2-acryloxyethanesulfonic acid, 2-methacryloxyethanesulfonic acid, 3-acryloxy- and 3-methacryloxypropanesulfonic acid, vinylbenzenesulfonic acid and salts thereof, ethylenically unsaturated Phosphonic acids, such as vinylphosphonic acid and vinylphosphonic and methyl esters and their salts and ⁇ , ß-ethylenically unsaturated C3-Cs mono- and C 4 -Cs dicarboxylic acids, in particular acrylic acid, methacrylic acid, crotonic acid, maleic acid, fumaric acid and itaconic acid.
- ethylenically unsaturated sulfonic acids in particular vinylsulfonic acid, 2-acrylamido-2-methylpropanesulfonic
- the proportion of acid group-containing monomers is often not more than 20 wt .-%, preferably not more than 15 wt .-%, z. B. 0.1 to 15 wt .-% and in particular 0.5 to 10 wt .-%, based on the total amount of the monomers constitute.
- the monomers of group (v) also include monoethylenically unsaturated, neutral monomers such as the amides of the abovementioned ethylenically unsaturated carboxylic acids, in particular acrylamide and methacrylamide, hydroxyalkyl esters of the aforementioned ⁇ , ⁇ -ethylenically unsaturated Cs-Cs monocarboxylic acids and the C 4 -Cs Dicarboxylic acids, in particular 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, 2- and 3-hydroxypropyl acrylate, 2- and 3-hydroxypropyl methacrylate, esters of the abovementioned monoethylenically unsaturated mono- and dicarboxylic acids with C 2 -C 4 -polyalkylene glycols, in particular the esters of these carboxylic acids with polyethylene glycol or alkyl-polyethylene glycols, wherein the (alkyl) polyethylene glycol radical usually has a mo
- the monomers (v) also include N-vinylamides such as N-vinylformamide, N-vinylpyrrolidone, N-vinylimidazole and N-vinylcaprolactam.
- the proportion of these monomers is also chosen so that the resulting polymers are insoluble in water. It is preferably not more than 20 wt .-%, and in particular not more than 10 wt .-%, z. B. 0.1 to 10 and in particular 0.5 to 5 wt .-%, based on the total amount of the monomers.
- Monomers of group (v) furthermore include monoethylenically unsaturated monomers which have at least one cationic group and / or at least one amino group which can be protonated in the aqueous medium, a quaternary ammonium group, a protonatable imino group or a quaternized imino group.
- monomers having a protonatable imino group are N-vinylimidazole and N-vinylpyridines.
- monomers having a quaternized imino group are N-alkylvinylpyridinium salts and N-alkyl-N'-vinylimidazolinium salts such as
- R 1 is hydrogen or C 1 -C 4 -alkyl, in particular hydrogen or methyl
- R 2 , R 3 independently of one another Ci-C 4 -AlkVl, in particular methyl
- R 4 is hydrogen or C 1 -C 4 -alkyl, in particular hydrogen or methyl
- A is C 2 -C 8 alkylene, e.g. B. 1, 2-ethanediyl, 1, 2- or 1, 3-propanediyl, 1, 4-butanediyl or 2-methyl-1, 2-propanediyl, which is optionally interrupted by 1, 2 or 3 non-adjacent oxygen atoms is and X- for an anion equivalent, e.g. B. for Ch, HSO 4 -, ⁇ A SO 4 2 " or CH 3 OSO 3 - etc.,
- Examples of such monomers are 2- (N, N-dimethylamino) ethyl acrylate,
- the proportion of cationic monomers in the emulsion polymer is advantageously 0.1 to 20 wt .-%, in particular 0.5 to 10 wt .-%, and particularly preferably 1 to 7 wt .-%, based on the total amount of the monomers.
- the polymers may optionally contain a further group of monomers (vi) polymerized, which can usually be used as a crosslinker in an emulsion polymerization.
- the proportion of monomers (vi) having two or more ethylenically unsaturated double bonds usually makes no more than 10 wt .-%, usually not more than 5 wt .-%, in particular not more than 2 wt .-%, z , B. 0.01 to 2 wt .-% and in particular 0.05 to 1, 5 wt .-%, based on the total amount of the monomers.
- crosslinkers are butanedioldiacrylate, butanediol dimethacrylate, hexanediol diacrylate, hexanediol dimethacrylate, glycol dicarylate, glycol dimethacrylate, trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, diacrylates and dimethacrylates of alkoxylated dihydric alcohols, divinylurea and / or conjugated diolefins such as butadiene or isoprene.
- a reactive functional group for example an oxirane group, a reactive carbonyl group, eg. An acetoacetato group, an isocyanate group, an N-hydroxymethyl group, an N-alkoxymethyl group, a trialkylsilyl group, a trialkoxysilyl group or other nucleophile-reactive group.
- emulsion polymers whose Monomerzusammen- reduction is selected so that the resulting polymer has a glass transition temperature of at least 0, preferably at least 10 0 C, in particular in the range of 20 to 130 0 C, respectively.
- the monomers (i) are selected in the monomer mixture so that they correspond to a polymer 1 having a theoretical glass transition temperature according to Fox T g (Fox) of at least 50 0 C.
- Fox TG Fox, Bull. Am. Phys Soc. (Ser. II) 1, 123 [1956] and Ullmann's Encyclopedia of Industrial Chemistry, Weinheim (1980), pp 17-18
- Fox TG Fox, Bull. Am. Phys Soc. (Ser. II) 1, 123 [1956] and Ullmann's Encyclopedia of Industrial Chemistry, Weinheim (1980), pp 17-18
- X 1 , X 2 , ..., X n is the mass fractions of the monomers 1, 2, ..., n and T 9 1 , T 9 2 , ..., T 9 "the glass transition temperatures of each of only one of Monomers 1, 2, ..., n of polymers constructed in degrees Kelvin .
- the latter are, for example, from Ullmann's Encyclopedia of Industrial Chemistry, VCH, Weinheim, Vol. A 21 (1992) p 169 or from J. Brandrup, EH Immergut, Polymer Handbook 3rd ed., J. Wiley, New York 1989.
- the polymerization of the monomers is carried out by the method of emulsion polymerization, i. the monomers to be polymerized are present in the polymerization mixture as an aqueous emulsion.
- the monomers to be polymerized are present in the polymerization mixture as an aqueous emulsion.
- a dispersion stabilizer for the preparation of the aqueous dispersions of reactive sizes, e.g.
- surfactants in particular anionic surfactants, water-soluble starch, preferably anionic starch and protective colloids.
- the monomers may be initially charged in the reactor prior to the start of the polymerization or added under polymerization conditions in one or more portions or continuously to the polymerizing reaction mixture. For example, you can submit the majority of the monomers, in particular at least 80% and particularly preferably the total amount in the polymerization vessel and then immediately start the polymerization by adding a polymerization initiator.
- a further process variant consists in initially introducing a part (for example 5 to 25%) of the monomers or the monomer emulsion in the polymerization reactor, starting the polymerization by adding an initiator and the remaining amount of monomers or monomer emulsion to the reactor feeds continuously or in portions and completes the polymerization of the monomers.
- the polymerisate Onsinitiator can be presented in this process variant, for example, partially or completely in the reactor or metered separately from the remaining monomers in the reactor.
- the starters which are suitable for emulsion polymerization are, in principle, all polymerization initiators which are suitable and usually used for emulsion polymerization and which initiate free-radical polymerization of ethylenically unsaturated monomers.
- polymerization initiators which are suitable and usually used for emulsion polymerization and which initiate free-radical polymerization of ethylenically unsaturated monomers.
- azo compounds such as 2,2'-azobisisobutyronitrile, 2,2'-azobis (2-methylbutyronitrile), 2,2'-azobis [2-methyl-N- (2-hydroxyethyl) propionamide, 1, 1 '.
- the polymerization is preferably carried out using a redox initiator system, in particular a redox initiator system which contains as oxidizing agent a salt of peroxodisulfuric acid, hydrogen peroxide or an organic peroxide such as tert-butyl hydroperoxide.
- a redox initiator system which contains as oxidizing agent a salt of peroxodisulfuric acid, hydrogen peroxide or an organic peroxide such as tert-butyl hydroperoxide.
- the redox initiator systems preferably contain a sulfur compound, which is especially selected from sodium hydrogen sulfite, sodium hydroxymethanesulfinate and the bisulfite adduct of acetone.
- sulfur compound which is especially selected from sodium hydrogen sulfite, sodium hydroxymethanesulfinate and the bisulfite adduct of acetone.
- suitable reducing agents are phosphorus-containing compounds such as phosphorous acid, hypophosphites and pho
- redox initiator systems may contain an addition of small amounts of redox metal salts, such as iron salts, vanadium salts, copper salts, chromium salts or manganese salts, for example the redox initiator system ascorbic acid / iron (II) sulfate / sodium peroxodisulfate.
- redox metal salts such as iron salts, vanadium salts, copper salts, chromium salts or manganese salts, for example the redox initiator system ascorbic acid / iron (II) sulfate / sodium peroxodisulfate.
- Particularly preferred redox initiator systems are acetone bisulfite adduct / organic hydroperoxide such as tert-butyl hydroperoxide; Sodium disulfite (Na2S2 ⁇ s) / organic hydroperoxide such as tert-butyl hydroperoxide; Sodium hydroxymethanesulfinate / organic hydroperoxide such as tert-butyl hydroperoxide; and ascorbic acid / hydrogen peroxide.
- the initiator is usually employed in an amount of 0.02 to 2% by weight and in particular 0.05 to 1.5% by weight, based on the amount of the monomers.
- the optimum amount of initiator naturally depends on the initiator system used and can be determined by the person skilled in the art in routine experiments.
- the initiator may be partially or completely charged in the reaction vessel. Usually a part the amount of initiator together with a part of the monomer emulsion and the remaining initiator continuously or batchwise together with the monomers, but separately, added.
- Pressure and temperature are of minor importance for carrying out the polymerization of the monomers.
- the temperature naturally depends on the initiator system used.
- the optimum polymerization temperature can be determined by a person skilled in the art with the aid of routine experiments.
- the polymerization temperature is in the range of 0 to 110 0 C, often in the range of 30 to 95 0 C.
- the polymerization is usually carried out at atmospheric pressure or ambient pressure. But it can also at elevated pressure, z. B. to 10 bar or at reduced pressure z. B. at 20 to 900 mbar, but usually be carried out at> 800 mbar.
- a dispersion stabilizer is added to stabilize the resulting emulsion polymers, it is preferable to add at least one further surface-active substance in an amount of, for example, up to 5% by weight, e.g. B. 0.1 to 5 wt .-%, based on the monomer to be polymerized monomers.
- a further surface-active substances in addition to the nonionic surface-active substances in particular also anionic emulsifiers, z.
- alkyl sulfates As alkyl sulfates, alkyl sulfonates, alkylarylsulfonates, alkyl ether sulfates, alkylaryl ether sulfates, anionic starch, sulfosuccinates such as sulfosuccinic monoesters and sulfosuccinic and alkyl ether and further cationic E- emulsifiers into consideration. These compounds are used as surfactants in the preparation of the component (a) of the mixtures according to the invention.
- the emulsion polymerization of the monomers is carried out in the presence of, for example, up to 20% by weight, usually up to 10% by weight, based on the total dispersion, of a cationically or anionically modified starch.
- a cationically or anionically modified starch emulsion polymerization of the monomers
- the emulsion polymerization can optionally be carried out in the presence of at least one polymerization regulator.
- polymerization regulators are organic compounds which contain sulfur in bound form, such as dodecylmercaptan, thiodiglycol, ethylthioethanol, di-n-butylsulfide, di-n-octylsulfide, diphenyl sulfide, diisopropyl disulfide, 2-mercaptoethanol, 1,3-mercaptopropanol, 3 Mercaptopropan-1, 2-diol, 1, 4-mercaptobutanol, thioglycolic acid, 3-mercaptopropionic acid, mercaptosuccinic acid, thioacetic acid and thiourea, aldehydes such as formaldehyde, acetaldehyde and propionaldehyde, organic acids such as formic acid, sodium formate or ammonium format
- the amount used in each case for example, 0.01 to 5, preferably 0.1 to 1 wt .-%, based on the monomers used in the polymerization.
- Polymerization regulators and crosslinkers can be used together in the polymerization. This can be used, for example, to control the rheology of the resulting polymer dispersions.
- the polymerization is generally carried out at pH values of 2 to 9, preferably in the weakly acidic range at pH values of 3 to 5.5.
- the pH can be adjusted to the desired value before or during the polymerization with customary acids such as hydrochloric acid, sulfuric acid or acetic acid or else with bases such as sodium hydroxide solution, potassium hydroxide solution, ammonia, ammonium carbonate, etc.
- the dispersion is preferably adjusted to a pH of between 5 and 7 using sodium hydroxide solution, potassium hydroxide solution or ammonia.
- a postpolymerization is expediently carried out after completion of the actual polymerization.
- the polymer dispersion after completion of the main polymerization for example, an initiator from the group of hydrogen peroxide, peroxides, hydroperoxides and / or azo starters.
- suitable reducing agents such as ascorbic acid or sodium bisulfite
- oil-soluble, sparingly soluble in water initiators are used, for.
- the reaction mixture is heated, for example, to a temperature which corresponds to the temperature at which the main polymerization has been carried out or which may be up to 20 ° C., preferably se is up to 10 0 C higher.
- the main polymerization is complete when the polymerization initiator is consumed or the monomer conversion is, for example, at least 98%, preferably at least 99.5%.
- tert-butyl hydroperoxide is preferably used.
- the polymerization is carried out for example in a temperature range of 40 to 100 0 C, usually 50 to 95 ° C.
- a complexing agent for heavy metal ions can be added to the polymer dispersion in an amount such that all heavy metal ions are complexed.
- the starch-containing polymer dispersions contain dispersed particles having an average particle size of, for example, 20 to 500 nm, preferably 50 to 250 nm.
- the mean particle size can be determined by methods known to the person skilled in the art, such as, for example, laser correlation spectroscopy, ultracentrifugation or CHDF (Capillary Hydodynamic Fractionation). Another measure of the particle size of the dispersed polymer particles is the LD (translucency) value.
- the particular polymer dispersion to be examined is measured in 0.1% by weight aqueous dilution in a cuvette with an edge length of 2.5 cm with light of wavelength 600 nm and with the appropriate permeability of water under the same measurement conditions compared.
- the permeability of water is given as 100%.
- the finer the dispersion the higher the LD value measured by the method described above.
- the average particle size can be calculated from the measured values, cf. B. Verner, M. Bärta, B. Sedläcek, Tables of Scattering Functions for Spherical Particles, Prague, 1976, Edice Marco, Rada D-DATA, SVAZEK D-1.
- the solids content of the starch-containing polymer dispersion is, for example, 5 to 50% by weight, and is preferably in the range of 15 to 40% by weight.
- the paper size mixtures according to the invention comprise, for example, as component (b) an emulsion polymer
- Atoms having saturated carboxylic acids vinyl aromatics having up to 20 carbon atoms, ethylenically unsaturated nitrile, vinyl halide, vinyl ethers of 1 to 10
- component (v) optionally at least one cationic and / or at least one anionic monomer.
- component (b) consists of an emulsion polymer
- Component (b) used in a particularly preferred embodiment is an aqueous dispersion of an emulsion polymer obtainable by polymerizing ethylenically unsaturated monomers in the presence of a degraded starch.
- emulsion polymers are also known. They are used, for example, as a sizing agent for paper, cf. JP-A 58/1 15 196, EP-B 0 257 412, EP-B 0 267 770, EP-A 0 307 812, EP-A 0 536 597, EP-A 1 056 783, WO 00/23479, WO 02/14393, EP-B 1 165 642 and WO 2004/078807.
- Suitable starches are all native starches such as potato starch, corn starch, wheat starch, rice starch, starches with an amylopectin content of more than 95% and tapioca starch and cationically and anionically modified starches.
- the starches are subjected to molecular weight degradation before polymerization is carried out in the solution of degraded starch.
- the breakdown of the starch can be carried out oxidatively, hydrolytically or enzymatically.
- the starch is enzymatically degraded.
- the molecular weights M w of the degraded starches are, for example, in the range from 1000 to 100 000, preferably from 1000 to 60 000.
- the polymer dispersions may contain, for example, up to 20% by weight of at least one degraded starch. In most cases, the content of degraded starch in the emulsion polymers used as component (b) is 5 to 15% by weight.
- aqueous dispersions obtainable by free-radical polymerization of monomers of the abovementioned groups (iv) and (v) in the presence of low molecular weight prepolymers as emulsifier. Such prepolymers are known, for example, from EP-A 0 051 144.
- ком ⁇ онентs are prepared by a two-stage polymerization, wherein in the first polymerization stage, a monomer mixture containing from 2.5 to 10 moles of at least one nonionic, hydrophobic, ethylenic, per mole of a nitrogen-containing monomer carrying an amino and / or quaternary ammonium group unsaturated monomers, 0.5 to 1, 5 moles of an ethylenically unsaturated carboxylic acid and optionally up to 9 moles of a nonionic, hydrophilic, ethylenically unsaturated monomer polymerized in a water-miscible solvent in the manner of a solution copolymerization, then the solution of the prepolymer with water diluted and polymerized therein ethylenically unsaturated monomers in the manner of emulsion polymerization.
- Suitable solvents for the preparation of the prepolymers are, for example, carboxylic acids such as formic acid, acetic acid and propionic acid, alcohols such as methanol, ethanol, n-propanol or isopropanol and ketones such as acetone or methyl ethyl ketone and also dimethylformamide.
- carboxylic acids such as formic acid, acetic acid and propionic acid
- alcohols such as methanol, ethanol, n-propanol or isopropanol
- ketones such as acetone or methyl ethyl ketone and also dimethylformamide.
- the above-described monomers (iv) and (v) and optionally (vi) may be polymerized in an aqueous solution of such a prepolymer in the manner of emulsion polymerization.
- the paper size mixtures according to the invention can, for. Example, as component (b) an aqueous dispersions of an emulsion polymer containing by radical polymerization of
- Atoms having saturated carboxylic acids vinyl aromatics having up to 20 carbon atoms, ethylenically unsaturated nitrile, vinyl halide, vinyl ethers of alcohols containing 1 to 10 carbon atoms, aliphatic hydrocarbon having 2 to 8
- a further example of polymers which are suitable as component (b) of the mixtures according to the invention are emulsion polymers obtainable by free-radical polymerization of (iv) from 30 to 60% by weight of at least one optionally substituted styrene, acrylonitrile and / or methacrylonitrile (v) from 5 to 50% by weight of at least one acrylic acid C 1 -C 4 -alkyl ester and / or of a methacrylic acid C 1 -C 4 (iii) from 5 to 30% by weight of at least one C 4 to C 24 olefin,
- the paper size mixtures may also contain as component (b) at least one non-dispersible water-soluble or water-dispersible polymer from the group of polymers containing ethyleneimine units, water-soluble polyurethanes, water-soluble polyesters, water-soluble ethylene copolymers with anionic and / or cationic monomers or containing their mixtures.
- the molecular weights M w of these polymers are for example at least 5,000, preferably at least 100,000. They are usually in the range from 50,000 to 500,000.
- Ethylenimine units containing polymers are known. They are, for example, by polymerizing ethyleneimine in an aqueous medium in the presence of z. As acids, halogenated hydrocarbons or Lewis acids as a catalyst. They are also accessible by grafting of ethyleneimine compounds containing basic nitrogen atoms, for. B. by grafting condensates of a polyamidoamine and a dicarboxylic acid with ethyleneimine, cf. DE-B 24 34 816. A commercially available product of this kind is Polymin® SK from BASF, Ludwigshafen.
- Vinylamine-containing polymers are obtainable by hydrolysis of vinylformamide units containing polymers.
- Polyvinylamines are prepared, for example, by hydrolysis of homopolymers of N-vinylformamide, the degree of hydrolysis being, for example, up to 100%, usually 70 to 95%.
- High molecular weight copolymers of N-vinylformamide with other ethylenically unsaturated monomers such as vinyl acetate, vinyl propionate, methyl acrylate, Methacrylklaremethy- ester, acrylamide, acrylonitrile and / or methacrylonitrile, can be hydrolyzed to Vinylamineinomme containing polymers and according to the invention as component (b) sets.
- the polymers containing vinylamine units are cationic.
- component (b) of the mixtures according to the invention are non-dispersing, modified polyamines grafted with ethyleneimine and optionally crosslinked, polyetheramides, polyvinylimidazoles, polyvinylpyrrolidines, polyvinylimidazolines, polyvinyltetrahydropyrines, poly (dialkylaminoalkylvinyl ethers) and also poly (Dialkylaminoalkyl (meth) acrylates) in protonated or in quaternized form.
- the finely divided, aqueous mixtures of (a) a dispersion of a reactive sizing agent described above and (b) an emulsion polymer and / or a non-dispersing water-soluble polymer are used as sizing agents for paper and paper products such as cardboard and paperboard. They can be used both as surface sizing agents and as engine size agents in the customary amounts. Preferably, the application is as a surface sizing agent.
- the novel mixtures of the dispersions of components (a) and (b) can be processed with all process methods suitable for surface sizing.
- the dispersion is usually added to the size press liquor in an amount of 0.05 to 5% by weight, based on solid substance, and depends on the desired degree of sizing of the papers or paper products to be finished.
- the size press fleet may contain other substances such.
- starch pigments, optical brighteners, biocides, solidifiers for paper, fixing agents, defoamers, retention aids, and / or dehydrating agents.
- the sizing agent dispersion can be applied to paper, cardboard or cardboard by means of a size press or other application units such as a film press, Speedsizer or Gateroll.
- the amount of polymer thus applied to the surface of paper products is, for example, 0.005 to 1.0 g / m 2 , preferably 0.01 to 0.5 g / m 2 .
- the paper sizes mixtures according to the invention can be used for the production of all types of paper, for.
- As of writing and printing papers and packaging papers in particular of papers for the packaging of liquids.
- Paper products glued with the fine-particle, starch-containing polymer dispersions according to the invention have, compared with papers which are known with known sizing agents. with improved sizing, good instant sizing, improved ink-jet printability, and good toner adhesion.
- the percentages in the examples always mean percent by weight, the parts are parts by weight.
- the particle sizes were determined using a High Performance Particle Sizer (HPPS) from Malvern using a He-Ne laser (633 nm) at a scattering angle of 173 °.
- HPPS High Performance Particle Sizer
- Sulfonate 120 g stearyidiketene, 871, 3 g of demineralized water, 12 g Natriumdocecylsul- and 7.6 g of a condensation product of naphthalenesulfonic acid and formaldehyde (Tamol ® NNP) were mixed and heated to a temperature of 85 ° C. Once this temperature was reached, the mixture was pre-emulsified with the aid of an Ultraturrax ® apparatus at 6000 rpm over 5 minutes and then at 80 0 C three times with a homogenizer (AVP Gaulin LAB 40, 600 bar) emulsified and rapidly cooled to room temperature. A finely divided aqueous dispersion of stearyl diketene having an average particle size distribution of 144 nm was obtained.
- the determination of the degree of sizing was carried out according to Cobb ⁇ O according to DIN EN 20 535.
- the HST value was determined according to the Hercules Sizing Test in accordance with Tappi Standard T 530.
- the Inkschwimmzeit was carried out according to DIN 53 126 with a Sheffieldprüfinte blue.
- the toner adhesion was carried out with an IGT tester according to the regulation EN 12 283.
- An anionically modified potato starch was dissolved by heating at 95 ° C. for 30 minutes. Subsequently, the starch solution was added to the polymer dispersion to be tested, and diluted with water, so that in the finished mixture, a starch concentration of 8% was present. The mixture of starch solution and the polymer dispersion was then coated by means of a size press on a wood-free, unsized paper with a grammage of 80 g / m 2 at a temperature of 55 0 C. The preparation uptake was in the range of 50-60%. Subsequently, the papers thus treated were dried by means of contact drying at 90 0 C, air-conditioned for 24 h at 50% humidity and then subjected to the tests indicated above.
- aqueous dispersion of sizing agents (Basoplast ® 400DS) based on a styrene / butyl acrylate polymer.
- the solids content of the dispersion was 24.9%, the particle size distribution 101 nm.
- a native corn starch was brought into solution with heating to 95 0 C for 30 minutes and degraded by the addition of alpha-amylase to a viscosity of about 30mPas (Brookfield, spindle 1, 50 0 C).
- the starch solution each with the dispersions to be tested (ie, sizing agent from Examples 1-6 and Comparative Examples 1-5), and diluted with water, so that in the finished mixture, a starch concentration of 8% was present.
- the mixture of starch solution and size dispersion was then applied to a test liner by means of a size press (100% recycled paper, 100 g / m 2) at a temperature of 55 0 C.
- the preparation uptake was in the range of approximately 65%.
- the papers thus treated were dried by means of contact drying at 90 0 C, air-conditioned for 24 h at 50% humidity and then subjected to the tests indicated above. The results are shown in Table 2. (Concentrate sizing agent in the mixture
- Leaves are dried on a steam-heated drying cylinder at a temperature of 90 0 C to a water content of 5%, then stored for 24 hours at 25 0 C and a relative humidity of 50% and then determines the values for Cobb 60 and the ink buoyancy.
- the measured values are given in Table 3. Table 3
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CN111749045B (zh) * | 2019-08-29 | 2022-03-29 | 齐鲁工业大学 | 一种烯基琥珀酸酐施胶剂及其制备方法和应用 |
CN111851138B (zh) * | 2020-07-31 | 2022-06-28 | 青岛科技大学 | 一种反相乳化法制备生物质基材料抗热水乳液的方法 |
CN112593450B (zh) * | 2020-12-03 | 2023-04-14 | 北流市裕瑞造纸助剂有限公司 | 一种akd施胶剂及其制备方法和应用 |
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- 2007-12-11 US US12/518,312 patent/US20100016478A1/en not_active Abandoned
- 2007-12-11 EP EP07848052A patent/EP2126209A1/de not_active Withdrawn
- 2007-12-11 CN CN200780047555XA patent/CN101568687B/zh not_active Expired - Fee Related
- 2007-12-11 WO PCT/EP2007/063681 patent/WO2008074690A1/de active Application Filing
- 2007-12-11 JP JP2009541979A patent/JP2010513734A/ja active Pending
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2014
- 2014-07-31 JP JP2014156352A patent/JP2014208942A/ja not_active Withdrawn
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Also Published As
Publication number | Publication date |
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CN101568687B (zh) | 2012-06-27 |
JP2010513734A (ja) | 2010-04-30 |
JP2014208942A (ja) | 2014-11-06 |
CN101568687A (zh) | 2009-10-28 |
WO2008074690A1 (de) | 2008-06-26 |
US20100016478A1 (en) | 2010-01-21 |
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