WO2008034813A1 - Teilchen enthaltend polymeradditive - Google Patents
Teilchen enthaltend polymeradditive Download PDFInfo
- Publication number
- WO2008034813A1 WO2008034813A1 PCT/EP2007/059812 EP2007059812W WO2008034813A1 WO 2008034813 A1 WO2008034813 A1 WO 2008034813A1 EP 2007059812 W EP2007059812 W EP 2007059812W WO 2008034813 A1 WO2008034813 A1 WO 2008034813A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- monomers
- polymer
- particles
- polymer additives
- additives
- Prior art date
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- 229920000642 polymer Polymers 0.000 title claims abstract description 172
- 239000002245 particle Substances 0.000 title claims abstract description 118
- 239000000654 additive Substances 0.000 title claims abstract description 108
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- AKUNSTOMHUXJOZ-UHFFFAOYSA-N 1-hydroperoxybutane Chemical compound CCCCOO AKUNSTOMHUXJOZ-UHFFFAOYSA-N 0.000 description 4
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- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000000749 insecticidal effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 159000000014 iron salts Chemical class 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 235000019388 lanolin Nutrition 0.000 description 1
- 229940039717 lanolin Drugs 0.000 description 1
- PBOSTUDLECTMNL-UHFFFAOYSA-N lauryl acrylate Chemical compound CCCCCCCCCCCCOC(=O)C=C PBOSTUDLECTMNL-UHFFFAOYSA-N 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 150000002696 manganese Chemical class 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000005528 methosulfate group Chemical group 0.000 description 1
- PNDTZTNXVHZDMG-UHFFFAOYSA-N methyl 3-[3-tert-butyl-5-(5-chloro-2H-benzotriazol-4-yl)-4-hydroxyphenyl]propanoate Chemical compound COC(=O)CCc1cc(c(O)c(c1)C(C)(C)C)-c1c(Cl)ccc2[nH]nnc12 PNDTZTNXVHZDMG-UHFFFAOYSA-N 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- ZUZLIXGTXQBUDC-UHFFFAOYSA-N methyltrioctylammonium Chemical class CCCCCCCC[N+](C)(CCCCCCCC)CCCCCCCC ZUZLIXGTXQBUDC-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- XXHLECYBVSUVRK-UHFFFAOYSA-N n,n-dimethylbutanimidamide Chemical compound CCCC(=N)N(C)C XXHLECYBVSUVRK-UHFFFAOYSA-N 0.000 description 1
- WTNTZFRNCHEDOS-UHFFFAOYSA-N n-(2-hydroxyethyl)-2-methylpropanamide Chemical compound CC(C)C(=O)NCCO WTNTZFRNCHEDOS-UHFFFAOYSA-N 0.000 description 1
- ZQXSMRAEXCEDJD-UHFFFAOYSA-N n-ethenylformamide Chemical compound C=CNC=O ZQXSMRAEXCEDJD-UHFFFAOYSA-N 0.000 description 1
- ITUMDAPRCGMSJN-UHFFFAOYSA-N n-propylprop-2-enamide;hydrochloride Chemical compound Cl.CCCNC(=O)C=C ITUMDAPRCGMSJN-UHFFFAOYSA-N 0.000 description 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical class C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000012875 nonionic emulsifier Substances 0.000 description 1
- SRSFOMHQIATOFV-UHFFFAOYSA-N octanoyl octaneperoxoate Chemical compound CCCCCCCC(=O)OOC(=O)CCCCCCC SRSFOMHQIATOFV-UHFFFAOYSA-N 0.000 description 1
- JPMIIZHYYWMHDT-UHFFFAOYSA-N octhilinone Chemical compound CCCCCCCCN1SC=CC1=O JPMIIZHYYWMHDT-UHFFFAOYSA-N 0.000 description 1
- XQAABEDPVQWFPN-UHFFFAOYSA-N octyl 3-[3-(benzotriazol-2-yl)-5-tert-butyl-4-hydroxyphenyl]propanoate Chemical compound CC(C)(C)C1=CC(CCC(=O)OCCCCCCCC)=CC(N2N=C3C=CC=CC3=N2)=C1O XQAABEDPVQWFPN-UHFFFAOYSA-N 0.000 description 1
- DMFXLIFZVRXRRR-UHFFFAOYSA-N octyl 3-[3-tert-butyl-5-(5-chlorobenzotriazol-2-yl)-4-hydroxyphenyl]propanoate Chemical compound CC(C)(C)C1=CC(CCC(=O)OCCCCCCCC)=CC(N2N=C3C=C(Cl)C=CC3=N2)=C1O DMFXLIFZVRXRRR-UHFFFAOYSA-N 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 235000013873 oxidized polyethylene wax Nutrition 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-N peroxydisulfuric acid Chemical compound OS(=O)(=O)OOS(O)(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-N 0.000 description 1
- 150000002979 perylenes Chemical class 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 229940044654 phenolsulfonic acid Drugs 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical class O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 description 1
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N phosphonic acid group Chemical group P(O)(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 1
- 150000003009 phosphonic acids Chemical class 0.000 description 1
- XRBCRPZXSCBRTK-UHFFFAOYSA-N phosphonous acid Chemical class OPO XRBCRPZXSCBRTK-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920000371 poly(diallyldimethylammonium chloride) polymer Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920005646 polycarboxylate Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229940068886 polyethylene glycol 300 Drugs 0.000 description 1
- 229920001522 polyglycol ester Polymers 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 229920001592 potato starch Polymers 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- DQJSKCFIYCTPBV-UHFFFAOYSA-N propan-2-yl n-(propan-2-yloxycarbonylamino)peroxycarbamate Chemical compound CC(C)OC(=O)NOONC(=O)OC(C)C DQJSKCFIYCTPBV-UHFFFAOYSA-N 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- JEXVQSWXXUJEMA-UHFFFAOYSA-N pyrazol-3-one Chemical class O=C1C=CN=N1 JEXVQSWXXUJEMA-UHFFFAOYSA-N 0.000 description 1
- 150000003220 pyrenes Chemical class 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000029219 regulation of pH Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 150000003902 salicylic acid esters Chemical class 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 229940079827 sodium hydrogen sulfite Drugs 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000001256 steam distillation Methods 0.000 description 1
- 150000001629 stilbenes Chemical class 0.000 description 1
- 235000021286 stilbenes Nutrition 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 229940014800 succinic anhydride Drugs 0.000 description 1
- 125000000446 sulfanediyl group Chemical group *S* 0.000 description 1
- 150000003452 sulfinic acid derivatives Chemical class 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 239000004546 suspension concentrate Substances 0.000 description 1
- 239000004548 suspo-emulsion Substances 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- OPQYOFWUFGEMRZ-UHFFFAOYSA-N tert-butyl 2,2-dimethylpropaneperoxoate Chemical compound CC(C)(C)OOC(=O)C(C)(C)C OPQYOFWUFGEMRZ-UHFFFAOYSA-N 0.000 description 1
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- SJMYWORNLPSJQO-UHFFFAOYSA-N tert-butyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC(C)(C)C SJMYWORNLPSJQO-UHFFFAOYSA-N 0.000 description 1
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 1
- BWSZXUOMATYHHI-UHFFFAOYSA-N tert-butyl octaneperoxoate Chemical compound CCCCCCCC(=O)OOC(C)(C)C BWSZXUOMATYHHI-UHFFFAOYSA-N 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- LOIYMIARKYCTBW-OWOJBTEDSA-N trans-urocanic acid Chemical compound OC(=O)\C=C\C1=CNC=N1 LOIYMIARKYCTBW-OWOJBTEDSA-N 0.000 description 1
- LOIYMIARKYCTBW-UHFFFAOYSA-N trans-urocanic acid Natural products OC(=O)C=CC1=CNC=N1 LOIYMIARKYCTBW-UHFFFAOYSA-N 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229920000428 triblock copolymer Polymers 0.000 description 1
- XJZYYMGDWFAFLA-UHFFFAOYSA-L trimethyl-[4-[(4,7,7-trimethyl-3-oxo-2-bicyclo[2.2.1]heptanylidene)methyl]phenyl]azanium;sulfate Chemical compound [O-]S([O-])(=O)=O.CC1(C)C2CCC1(C)C(=O)C2=CC1=CC=C([N+](C)(C)C)C=C1.CC1(C)C2CCC1(C)C(=O)C2=CC1=CC=C([N+](C)(C)C)C=C1 XJZYYMGDWFAFLA-UHFFFAOYSA-L 0.000 description 1
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 1
- GPRLSGONYQIRFK-MNYXATJNSA-N triton Chemical compound [3H+] GPRLSGONYQIRFK-MNYXATJNSA-N 0.000 description 1
- 150000003681 vanadium Chemical class 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- NLVXSWCKKBEXTG-UHFFFAOYSA-N vinylsulfonic acid Chemical compound OS(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-N 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/22—Emulsion polymerisation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/32—Polymerisation in water-in-oil emulsions
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
- C08F265/02—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of acids, salts or anhydrides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F285/00—Macromolecular compounds obtained by polymerising monomers on to preformed graft polymers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
Definitions
- the particles have an average particle size of at most 500 nm.
- Terms of the form C 3 -Cb in the context of this invention designate chemical compounds or substituents with a certain number of carbon atoms. The number of carbon atoms can be selected from the entire range from a to b, including a and b, a is at least 1 and b is always greater than a. Further specification of the chemical compounds or substituents is made by terms of the form C 3 -Cb-V. V here stands for a chemical compound class or substituent class, for example for alkyl compounds or alkyl substituents.
- Preferred monomers M1 are vinylaromatic monomers, in particular styrene, C 2 -C 12 -alkyl acrylates, in particular C 2 -C 8 -alkyl acrylates or C 1 -C 12 -alkyl methacrylates, vinyl acetate, vinyl ethers and methacrylonitrile or acrylonitrile.
- the particles are preferably composed of from 60 to 100% by weight, based on the total amount of monomers M, preferably from 70 to 100% by weight and more preferably from 80 to 100% by weight, of monomers M1.
- the specified solubilities for example water solubilities, are measured under normal conditions, at a temperature of 25 ° C. and a pressure of 1013 mbar.
- the solubilities of the monomers are determined, for example, by dropping monomer into deionized water until a visually apparent phase boundary is formed.
- the monomers M2 include, in particular, monoethylenically unsaturated monomers M2a which have a water solubility of at least 50 g / l and in particular at least 100 g / l and which have at least one acid group or at least one anionic group, in particular monomers M2a which contain a sulfonic acid group, a phosphonic acid group or one or two carboxylic acid groups, as well as the salts of the monomers M2a, in particular the alkali metal salts, for.
- monomers M2a which contain a sulfonic acid group, a phosphonic acid group or one or two carboxylic acid groups, as well as the salts of the monomers M2a, in particular the alkali metal salts, for.
- the sodium or potassium salts and ammonium salts as the sodium or potassium salts and ammonium salts.
- ethylenically unsaturated sulfonic acids in particular vinylsulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid, 2-acryloxyethanesulfonic acid or 2-methacryloxyethanesulfonic acid, 3-acryloxy- or 3-methacryloxypropanesulfonic acid, vinylbenzenesulfonic acid or salts thereof, ethylenically unsaturated phosphonic acids, such as vinylphosphonic acid or vinylphosphonic acid.
- Preferred monomers are acrylic and methacrylic, and itaconic acid and their alkali metal salts.
- Examples of these are the amides of the abovementioned ethylenically unsaturated carboxylic acids, in particular acrylamide or methacrylamide, hydroxyalkyl esters of the abovementioned ⁇ , ⁇ -ethylenically unsaturated Cs-Cs monocarboxylic acids or C4-C8 dicarboxylic acids, in particular hydroxyethyl acrylate, hydroxyethyl methacrylate, 2- or 3- Hydroxypropyl acrylate, 2- or 3-hydroxypropyl methacrylate, esters of the abovementioned monoethylenically unsaturated mono- or dicarboxylic acids with C 2 -C 4 -polyalkylene glycols, in particular the esters of these carboxylic acids with polyethylene glycol or alkyl polyethylene glycols, where the (alkyl) polyethylene glycol Usually has a molecular weight in the range of 100 to 3000.
- 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,
- the monomers M include all ethylenically unsaturated monomers which can usually be used in an aqueous emulsion polymerization.
- monomers having two or more non-conjugated ethylenically unsaturated double bonds can be used as monomers M.
- the proportion of monomers M having two or more nonconjugated, ethylenically unsaturated double bonds usually makes up not more than 5% by weight, in particular not more than 2% by weight, eg. B. 0.01 to 2 wt .-% and in particular 0.05 to 1, 5 wt .-%, based on the total amount of the monomers M, from.
- the particles of the invention have a glass transition temperature Tg of at least 10 0 C, preferably at least 20 0 C and in particular at least 30 0 C.
- the glass transition temperature will not exceed a value of 180 ° C., and more preferably 130 ° C.
- the particles according to the invention are prepared by step polymerization and thus present as core-shell particles, or in the form of mixtures of different particles, the proportion of particles having a glass transition temperature of at least 10 ° C., preferably at least 20 ° C. and in particular at least 30 ° C, for example, at least 40 wt .-%.
- the glass transition temperature Tg is understood here to be the midpoint temperature determined by differential thermal analysis (DSC) in accordance with ASTM D 3418-82 (compare Ullmann's Encyclopedia of Industrial Chemistry, 5th Edition, Volume A 21, VCH Weinheim 1992, p A. Zosel, color and paint 82 (1976), pp. 125-134, see also DIN 53765).
- DSC differential thermal analysis
- 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 (homopolymers) in degrees Kelvin, the latter being known, for example, from Ullmann's Encyclopedia of Industrial Chemistry, VCH, Weinheim, Vol. A 21 (1992) p Brandrup, EH Immergut, Polymer Handbook 3rd ed., J. Wiley, New York 1989.
- the average particle size of the particles according to the invention is at most 500 nm.
- the particle size distribution of the primary particles can be multi- but also monomodal. The distribution can be narrow or wide depending on the reaction conditions.
- the average particle size is preferably in the range from 10 to 450 nm, in particular in the range from 20 to 400 nm, particularly preferably in the range from 30 to 350 nm and very particularly preferably in the range from 40 to 300 nm.
- the particle sizes given 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.
- polymer additives are to be understood as meaning, in particular, UV absorbers, stabilizers, auxiliaries, dyes or reactive sizing agents for paper.
- Stabilizers include UV, light stabilizers or antioxidants for organic polymers.
- Adjuvants include antifogging agents for organic polymers, lubricants for organic polymers, antistatics for organic polymers, or flame retardants for organic polymers.
- Dyes include organic dyes that absorb light in the visible range, IR dyes or optical brighteners. Classification of the polymer additives into one of the above groups is not exclusive, i. The individual polymer additives can definitely develop several effects, for example as a stabilizer and as an aid.
- the suitable polymer additives are soluble according to the invention in the monomers M1.
- the solubility of the polymer additives in the monomers M1 is, for example, at least 1 g / l, preferably at least 10 g / l.
- the amount of polymer additives present in the particles is, for example, 0.5 to 60% by weight, preferably 10 to 40% by weight, and most often in the range of 10 to 30% by weight, based in each case on the total weight of the particles.
- UV absorbers are derivatives of p-aminobenzoic acid, especially their esters, e.g. 4-aminobenzoic acid ethyl ester or ethoxylated ethyl 4-aminobenzoate, salicylates, substituted cinnamates (cinnamates) such as octyl-p-methoxycinnamate or 4-iso-pentyl-4-methoxycinnamate, 2-phenylbenzimidazole-5-sulfonic acid or its salts.
- a particularly preferred UV absorber is 4-n-octyloxy-2-hydroxibenzo-phenone.
- Further examples of UV absorbers are:
- 2-hydroxybenzophenone derivatives e.g. 4-hydroxy, 4-methoxy, 4-octyloxy, 4-deoxyloxy, 4-dodecyloxy, 4-benzyloxy, 4,2 ', 4'-trihydroxy, 2'-hydroxy-4, 4'-dimethoxy-2-hydroxybenzophenone and 4-methoxy-2-hydroxybenzophenone-sulfonic acid sodium salt;
- Benzylidene camphor or its derivatives as described, for. B. in DE-A 38 36 630 are called, for example, 3-Benzylidencampher, 3 (4'-methylbenzylidene) d-1-camphor; ⁇ - (2-oxoborn-3-ylidene) toluene-4-sulfonic acid or its salts, N, N, N-trimethyl-4- (2-oxo-born-3-ylidenemethyl) anilinium monosulfate;
- 2,4,6-triaryltriazine compounds such as 2,4,6-tris- ⁇ N- [4- (2-ethylhex-1-yl) oxycarbonylphenyl] amino ⁇ -1, 3,5-triazine, 4, 4 '- ((6- ((tert-butyl) aminocarbonyl) phenylamino) -1, 3,5-triazine-2,4-diyl) imino) bis (benzoic acid 2'-ethylhexyl ester);
- stabilizers for organic polymers are further considered.
- the stabilizers are compounds that stabilize organic polymers against degradation upon exposure to oxygen, light or heat. They are also referred to as antioxidants or as UV and light stabilizers, cf. Ullmanns, Encyclopedia of Industrial Chemistry, Vol. 3, 629-650 (ISBN-3-527-30385-5) and EP-A 1 1 10 999, page 2, line 29 to page 38, line 29. With such stabilizers virtually all organic polymers can be stabilized, cf.
- auxiliaries for organic polymers are, for example, substances which at least largely prevent the fogging of films or molded parts made of plastics, so-called anti-fogging agents.
- anti-fogging agents are also suitable as polymer additives. Such polymer additives are described, for example, by F. WyNn, in Plastics Additives Handbook, 5th Edition, Hanser, ISBN 1-56990-295-X, pages 609-626.
- Suitable polymer additives are lubricants such as oxidized polyethylene waxes and antistatic agents for organic polymers. Examples of antistatic agents cf. the aforementioned reference F. WyNn, Plastics Additives Handbook, pp. 627-645.
- polymer additives are flame retardants which are described, for example, in Römpp, 10th edition, pages 1352 and 1353 and in Ullmanns, Encyclopedia of Industrial Chemistry, Vol. 14, 53-71.
- stabilizers and adjuvants are sold, for example, under the trade names Tinuvin® and Cyasorb® by Ciba and Tenox® by Eastman Kodak. Stabilizers and auxiliaries are described, for example, in Plastics Additive Handbook, 5th Edition, Hanser Verlag, ISBN 1-56990-295-X.
- the stabilizers and auxiliaries are soluble in the monomers M1, with at least 1 g / l, preferably at least 10 g / l dissolving.
- organic dyes that absorb light in the visible range, or optical brighteners.
- optical brighteners are described in detail in the prior art WO 99/40123, page 10, line 14 to page 25, line 25, which is incorporated herein by reference. While organic dyes have an absorption maximum in the wavelength range from 400 to 850 nm, optical brighteners have one or more absorption maxima in the range from 250 to 400 nm.
- Optical brighteners emit fluorescence radiation in the visible range when irradiated with UV light. Examples of optical brighteners are compounds from the classes of bisstyrylbenzenes, stilbenes, benzoxazoles, coumarins, pyrenes and naphthalenes.
- optical brighteners are sold under the trademarks Tinopal® (Ciba), Ultraphor® (BASF Aktiengesellschaft) and Blankophor® (Bayer). Optical brighteners are also described in Römpp, 10th Ed., Vol. 4, 3028-3029 (1998) and in Ullmanns, Encyclopedia of Industrial Chemistry, Vol. 24, 363-386 (2003). Further suitable polymer additives are IR dyes, which are sold for example by BASF Aktiengesellschaft as Lumogen® IR. Lumogen® dyes include compounds of the classes of perylenes, naphthalimides, or quaterylenes.
- Polymer additives are also to be understood as meaning reactive sizing agents for paper, such as alkyldiketenes and alkenylsuccinic anhydrides.
- Alkyldiketenes are used as engine sizing agents in the manufacture of paper, board and board.
- These polymer additives are essentially C 1 -C 22 -alkyldiketenes, such as stearyldiketene, palmityldiketene, behenyldiketene, oleyldiketene and mixtures of the diketenes.
- Alkenyl succinic anhydrides are also used in the manufacture of paper and paper products as engine sizing agents in the art.
- the polymer additives may also be slightly soluble in the at least partially water-soluble monomers M2a-c, but they will preferably be dissolved in the largely water-insoluble monomers M1.
- the monomers M2a-c react in the manner of a copolymerization with the monomers M1 to form the so-called Z-mers. It is conceivable that these Z-mers then polymerize as a hydrophobic radical initiator on the seed-swollen with monomer seed latex particles and cure them.
- the mechanism of transfer of polymer additives and other The hydrophobic chemicals through the water phase are not fully understood, but the seed latex particles present may be helpful in this transfer.
- the oil-in-water emulsion of the polymer additive monomer solution can be generated in-situ by adding a solution of the polymer additive in the monomers M to be polymerized to the polymerization vessel under polymerization conditions.
- a solution of the polymer additive in the monomers M to be polymerized to the polymerization vessel under polymerization conditions.
- one will dissolve polymer additives in the monomers M and convert the monomer solution thus obtained into an aqueous monomer emulsion, before feeding the monomer / polymer additive emulsion thus obtained to the polymerization reaction.
- the emulsion polymerization is carried out in the presence of a seed polymer (seed latex, seed).
- seed latex is a finely divided polymer latex whose mean particle size is usually not more than 100 nm, in particular not more than 80 nm and particularly preferably not more than 50 nm. In particular, the seed particle size is not more than 30 nm.
- the seed latex monomers are preferably selected to be at least 90% by weight, especially at least 95% by weight and often more than 99% by weight among the monomers M1, wherein the seed latex for stabilization also small amounts, eg. B. from 0.1 to 10 wt .-%, in particular from 0.1 to
- the major amount, and especially the total amount of seed latex is completely contained in the reaction vessel at the beginning of the emulsion polymerization.
- the seed latex can also be generated in situ in the polymerization vessel by free-radical emulsion polymerization of the seed latex-forming monomers. The formation of the seed latex is completed in this case, however, before the production of the particles according to the invention begins. The delivery of additional seed latex during the emulsion polymerization is possible.
- the desired particle size of the seed latex can be controlled in a manner known per se via the ratio of monomer to emulsifier.
- the seed can be produced largely emulsifier-free with the aid of protective colloids.
- the customary in the prior art methods for emulsion polymerizations are applicable.
- the seed latex forming monomers from the group d- to Ci2-alkyl acrylates, d- to Ci2-alkyl methacrylates, styrene, acrylonitrile or methacrylonitrile are selected. Particularly preferred are styrene or methyl methacrylate.
- the seed latex is preferably crosslinked.
- One or more crosslinkers can be used. Allyl acrylate, allyl methacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, pentaerythritol trimethacrylate, pentaerythritol tetramethacrylate, ethylene glycol diacrylate, ethylene glycol dimethacrylate, butanediol diacrylate, butanediol dimethacrylate, trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, butadiene, divinylbenzene, divinylurea or methylenebisacrylamide are suitable crosslinkers.
- the emulsion polymerization for the preparation of the particles according to the invention takes place by a so-called monomer feed process, ie. H. the major amount, preferably at least 70% and especially at least 90% of the solution of the polymer additive in the monomers M or the major amount, preferably at least 70% and in particular at least 90% of the monomer / polymer additive solution or emulsion in the course of the polymerization reaction Polymerization vessel supplied already containing the seed latex.
- monomer feed process ie. H. the major amount, preferably at least 70% and especially at least 90% of the solution of the polymer additive in the monomers M or the major amount, preferably at least 70% and in particular at least 90% of the monomer / polymer additive solution or emulsion in the course of the polymerization reaction Polymerization vessel supplied already containing the seed latex.
- the period for the addition of the monomer / polymer additive solution or emulsion may vary over a wide range, depending on the composition.
- the addition is over a period of at least 0.5 hours, preferably at least 1 hour, e.g. 1 to 10 hours and especially 2 to 5 hours.
- the addition of the monomer / polymer additive solution or emulsion can be carried out at a constant or varying rate of addition, e.g. B. in intervals with constant rate of addition or variable rate of addition or continuously with variable rate of addition.
- the composition of the monomer / polymer additive solution or emulsion can be kept constant or changed during the addition, wherein changes can be made both with respect to the monomer composition and with respect to the type of polymer additive or the concentration of the polymer additive.
- the monomer composition is changed in the course of the monomer addition in such a way that polymer regions having a different glass transition temperature are obtained in the shells of the particles.
- step polymerization For this purpose, first, in the presence of the core (seed latex), a first monomer / polymer additive solution or emulsion whose monomer composition corresponds to a glass transition temperature Tg 1 is polymerized, followed by a second monomer / polymer additive solution or emulsion Emulsion whose monomer composition corresponds to a glass transition temperature T 9 2 (2nd stage) and optionally thereafter successively one or more further monomer / polymer additive solutions or emulsions whose monomer composition corresponds in each case to a glass transition temperature T g n , where n is the respective stage stands.
- crosslinked polymers are to be prepared, it is possible, for example, to proceed by metering at least one crosslinker continuously into the reaction zone, either separately from the other monomers or in mixture with the other monomers. Another variant is to gradually add the crosslinker to the reaction zone.
- cationic azo compounds such as azobis (dimethylamidinopropane), salts of peroxodisulfuric, in particular the sodium, potassium or ammonium salts or a redox initiator system containing as oxidizing agent a salt of peroxodisulfuric acid, hydrogen peroxide or an organic peroxide such as tert-butyl hydroperoxide.
- a sulfur compound which is especially selected from sodium hydrogen sulfite, sodium hydroxymethanesulfinate or the bisulfite adduct of acetone.
- Pressure and temperature are of minor importance for the preparation of the polymer additive compositions of the invention.
- the temperature naturally depends on the initiator system used and an optimum polymerization temperature can be determined by a person skilled in the art by routine experimentation.
- the polymerization temperature is in the range of 10 to 110 0 C, often in the range of 50 to 95 0 C.
- the emulsion polymerization is usually carried out at atmospheric pressure or ambient pressure. However, it can also be carried out in the pressure range from 800 mbar to 3 bar.
- Further protective colloids are synthetic polymers or copolymers which contain as monomers the monomers listed under M2a, M2b or M2c, or mixtures thereof, and which are added as polymers or copolymers to the emulsion polymerization. Also, polysaccharides which carry anionic, nonionic or cationic groups are suitable as protective colloids. These polysaccharides may optionally be degraded in the reaction mixture.
- Nonionic emulsifiers are, for example, alkylphenol alkoxylates, alcohol alkoxylates, fatty amine alkoxylates, polyoxyethylene glycol fatty acid esters, castor oil alkoxylates, fatty acid alkoxylates, fatty acid polyalkoxylates, fatty acid polydiethanolamides, lanolin ethoxylates, fatty acid polyglycol esters, isotridecyl alcohol, fatty acid amides, methyl cellulose, fatty acid esters, silicone oils, alkyl polyglycosides or glycerol fatty acid esters.
- nonionic surfactants are ethoxylated mono-, di- and tri-alkylphenols (degree of ethoxylation: 3 to 50, alkyl radical: C3-C12) and ethoxylated fatty alcohols (degree of ethoxylation: 3 to 80, alkyl radical: C8-C36).
- fatty alcohols are the brands Lutensol® from BASF Aktiengesellschaft or the brands Triton® 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 C3-C10-alkylene oxide, eg. B. triblock copolymers of the formula
- A is a radical derived from an aliphatic, cycloaliphatic or aromatic diol, e.g.
- B and B ' are independently propane-1, 2-diyl, butane-1, 2-diyl or phenethylethany4 independently of one another from 2 to 100 and Y 2, Y 3 independently of one another is a number from 2 to 100, wherein the sum of 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 20,000.
- A is ethane-1, 2-diyl, propane-1
- nonionic protective colloids are polyethylene glycol, polypropylene glycol, polyethylene glycol-polypropylene glycol block copolymers, polyethyleneglycol alkyl ethers, polypropylene glycol alkyl ethers, polyethylene glycol-polypropylene glycol ether block copolymers and mixtures thereof. Further preferred nonionic protective colloids are polysaccharides or their degradation products.
- cationic emulsifiers are quaternary ammonium salts, e.g. B. trimethyl or triethyl-C6-C3o-alkylammonium salts such as cocotrimethylammonium salts, trimethylcetylammonium salts, dimethyl or diethyl-di-C4-C2o-alkylammonium salts such as Didecyldimethylammoniumsalze or Dicocodimethylammoniumsalze, methyl or ethyl-tri-C4-C2o-alkylammonium salts such as methyltrioctylammonium salts C 1 -C 20 -alkyl-di-C 1 -C 4 -alkylbenzylammonium salts such as triethylbenzylammonium salts or cocobenzyldimethylammonium salts, methyl or ethyl-C 1 -C 4 -alkylam
- N-C6-C2o-alkylpyridinium salts e.g. N-Laurylpyridiniumsalze, N-methyl or N-ethyl-N-C6-C2o-alkylmorpholiniumsalze, and N-methyl or N-ethyl-N'-C6-C2o-al kylimidazoliniumsalze, in particular the halides, borates, Carbonates, formates, acetates, propionates, bicarbonates, sulfates or methosulfates.
- N-C6-C2o-alkylpyridinium salts e.g. N-Laurylpyridiniumsalze, N-methyl or N-ethyl-N-C6-C2o-alkylmorpholiniumsalze, and N-methyl or N-ethyl-N'-C6-C2o-al kylimidazoliniumsalze, in particular the halides
- Zwitterionic emulsifiers are those with betainic structures. Such substances are known to the person skilled in the art and can be taken from the relevant prior art (see, for example, R. Heusch, Ullmanns Encylopedia of Industrial Chemistry, 5th Ed. On CD-ROM, Wiley-VCH 1997, “Emulsions", Chapter 7, Table 4) Gemini surfactants are also known to the person skilled in the art.
- protective colloids are polyvinyl alcohols, cellulose derivatives such as carboxymethylcellulose, polyvinylpyrrolidone, graft polymers of vinyl acetate and / or vinyl propionate on polyethylene glycols, polyethylene glycols terminated on one or both sides with alkyl, carboxyl or amino groups, polydiallyldimethylammonium chlorides and / or polysaccharides such as, in particular, water-soluble Starches, starch derivatives or proteins.
- Such products 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.
- starch e.g. both amylose and amylopectin, native starches, hydrophobically or hydrophilically modified starches, anionic starches, cationically modified starches, 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.
- suitable protective colloids are dextrins or crosslinked water-soluble starches which are water-swellable.
- the molecular weight reduction is preferably carried out enzymatically but can also be carried out hydrolytically or oxidatively.
- 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.
- protective colloids are used in the emulsion polymerization
- the amounts used are, for example, from 0.5 to 50, in particular from 5 to 40,%, usually from 10 to 30,% by weight, based on the monomers M. used in the emulsion polymerization.
- the polymer dispersions according to the invention usually comprise at least one emulsifier, preferably at least one ionic emulsifier and optionally one or more nonionic emulsifiers.
- the amount of emulsifier is usually in the range of 0.1 to 15 wt .-%, in particular in the range of 0.2 to 12 wt .-%, and particularly preferably 0.7 to 10 wt .-%, based on the monomers M.
- the amount of ionic emulsifier is preferably 0.3 to 10 wt .-% and in particular 0.5 to 8 wt .-%, based on the monomers M.
- the amount of nonionic emulsifier is preferably in the range of 0.2 to 12% by weight, in particular from 0.5 to 10% by weight, based on the monomers M. which constitute the polymer.
- the amounts of surface-active substances customarily used for emulsion polymerization are usually in the abovementioned ranges, so that all or some of the surface-active substances are supplied via the emulsion polymerization. However, it is also possible only a part, for. B. 10 to 90 wt .-%, in particular 20 to 80 wt .-% of the surface-active substances in the emulsion and to add the remaining amount of surface-active substance following the emulsion polymerization, before or after an optionally be performed deodorization of the emulsion (post-soaps) ,
- aqueous polymer dispersions Following the actual polymerization reaction, it may be necessary to substantially free the aqueous polymer dispersions according to the invention from Odorants, such as residual monomers and other organic volatile constituents. This can be achieved physically in a manner known per se by distillative removal (in particular via steam distillation) or by stripping with an inert gas.
- the lowering of the residual monomers can continue chemically by free radical postpolymerization, in particular under the action of redox initiator systems, as z. For example, in DE-A 44 35 423, DE-A 44 19 518 and in DE-A 44 35 422 listed, carried out.
- the postpolymerization is preferably carried out with a redox initiator system comprising at least one organic peroxide and one organic sulfite.
- the polymer dispersions thus obtained are frequently made alkaline, preferably to pH values in the range from 7 to 10, before they are used according to the invention.
- alkaline preferably to pH values in the range from 7 to 10.
- ammonia or organic amines can be used, and preferably hydroxides, such as sodium hydroxide, potassium hydroxide or calcium hydroxide can be used.
- novel polymer dispersions are distinguished by high stability and a low content of volatile organic compounds, which are usually not more than 1% by weight, often not more than 0.1% by weight and in particular not more than 100 ppm , based on the total weight of the polymer dispersion.
- Volatile compounds are all organic compounds having a boiling point below 200 0 C at atmospheric pressure here and in the constricting folic.
- the polymer additives are at least partially enveloped by the water-insoluble polymers formed from the monomers M, ie, the particles according to the invention contain the polymer additives. It is often observed no measurable or very low levels of agglomerates or coagulants, which usually account for less than 2 wt .-%, preferably less than 0.2 wt .-%, based on the solids contained in the polymer dispersion.
- the solids content of the polymer dispersions according to the invention is determined to a first approximation by the particles according to the invention and is generally in the range from 10 to 60% by weight and in particular in the range from 20 to 50% by weight.
- Preferred particles according to the invention are those particles in which all features take on their preferred meaning.
- particles which, as monomers M1 are methyl methacrylate, methyl acrylate, ethyl acrylate, acrylonitrile, methacrylonitrile or mixtures of these monomers.
- ren and whose seed latex is based on polystyrene and / or polymethyl methacrylate or copolymers of polystyrene and polymethyl methacrylate.
- particles which contain, as monomers M1, methyl methacrylate, methyl acrylate, ethyl acrylate, acrylonitrile or mixtures of these monomers and whose seed latex is based on polystyrene and / or polymethyl methacrylate or copolymers of styrene and methyl methacrylate and which have been prepared with the aid of protective colloids
- Protective colloids in particular polyvinyl alcohol, or polyvinyl acetate or polysaccharides which have been further cured by means of crosslinkers such as glyoxal or glutaric dialdehyde.
- particles which comprise methyl methacrylate, methyl acrylate, ethyl acrylate, acrylonitrile or mixtures of these monomers as monomers M1 and whose seed latex is based on polystyrene and / or polymethyl methacrylate or copolymers of styrene and methyl methacrylate and which have been prepared with the aid of emulsifiers Emulsifiers in particular Dowfax® 2 A1, sodium lauryl sulfate, or sulfosuccinic come into consideration.
- Dowfax® 2A1 contains a 45% aqueous solution of 28-36% disodium dodecyl (sulfonatophenoxy) benzenesulfonate (CAS # 28519-02-0, EC No 249-063-8) and 8-15% disodium (oxybis) dodecylbenzenesulfonate (CAS # 25167-32-2, EC No. 246-688-8).
- the seed may contain the same or different surfactants as used for emulsion polymerization.
- particles which contain as monomers M1 methyl methacrylate, methyl acrylate, ethyl acrylate, acrylonitrile or mixtures of these monomers and whose seed latex is based on polystyrene and / or polymethyl methacrylate or copolymers of styrene and methyl methacrylate and which have been prepared with the aid of emulsifiers, mixtures of nonionic surfactants and anionic surfactants, such as, for example, the Lutensol® grades from BASF in combination with the abovementioned anionic surfactants, are particularly suitable as emulsifiers.
- the seed may contain the same or different surfactants as used for emulsion polymerization.
- the seed may contain the same or different surfactants as used for emulsion polymerization. Furthermore, preference is given to particles which comprise methyl methacrylate, methyl acrylate, ethyl acrylate, acrylonitrile or mixtures of these monomers as monomers M1 and whose seed latex is based on polystyrene and / or polymethyl methacrylate or copolymers of styrene and methyl methacrylate and which have been prepared with the aid of protective colloids
- Protective colloids represent synthetic polymers which contain 3- (N 1 N-dimethylamino) propyl methacrylamide monomers and which were furthermore prepared with the aid of emulsifiers, suitable emulsifiers being, in particular, Dowfax 2 Al, sodium lauryl sulfate or sulfosuccinic acid esters.
- the seed may contain the same or different surfactants as are used for emulsion polymerization.
- Suitable thickeners are compounds which impart a pseudoplastic flow behavior to the formulation, i. H. high viscosity at rest and low viscosity when in motion.
- Suitable thickeners are compounds which impart a pseudoplastic flow behavior to the formulation, i. H. high viscosity at rest and low viscosity when in motion.
- polysaccharides or organic acids for example, polysaccharides or organic acids
- Layered minerals such as xanthan gum (Kelzan® from Kelco), Rhodopol® 23 (Rhone Poulenc) or Veegum® (company RT Vanderbilt) or Attaclay® (Engelhardt, magnesium aluminum silicate, Palygorskite), where xanthan gum Gum is preferably used.
- Suitable antifoams for the polymer dispersions according to the invention are, for example, silicone emulsions (such as, for example, Silikon® SRE, Wacker or Rhodorsil® from Rhodia), long-chain alcohols, fatty acids, organofluorine compounds and mixtures thereof.
- Bactericides can be added to stabilize the polymer dispersions according to the invention against attack by microorganisms.
- Suitable bactericides are, for example, Proxel® from Avecia (or Fa. Arch) or Acticide® RS from Thor Chemie and Kathon® MK from Rohm & Haas.
- Suitable antifreeze are organic polyols, eg. As ethylene glycol, propylene glycol or glycerol. These are usually used in amounts of not more than 10% by weight, based on the total weight of the polymer dispersion.
- the polymer dispersions of the invention may contain 1 to 5 wt .-% buffer, based on the total amount of the formulation prepared for pH regulation, wherein the amount and type of buffer used according to the chemical properties of the polymer additives or polymers.
- buffers are alkali salts of weak inorganic or organic acids such. For example, phosphoric acid, boric acid, acetic acid, propionic acid, citric acid, fumaric acid, tartaric acid, oxalic acid and succinic acid.
- novel aqueous polymer dispersions can be formulated with conventional binders, for example aqueous polymer dispersions, water-soluble resins, for example water-soluble alkyd resins, or with waxes.
- the particles according to the invention are contained in the polymer dispersions and can be obtained from these polymer dispersions by removing the volatile constituents of the liquid phase in powder form.
- the particles according to the invention can be present either singly, in agglomerated form, or else partially in film form.
- the polymer powders according to the invention are accessible, for example, by evaporation of the liquid phase, freeze drying or by spray drying.
- polymer dispersions according to the invention are obtainable by redispersing the polymer powders according to the invention.
- the migration stability can be measured, for example, by spray drying the polymer dispersion according to the invention and subsequent extraction of the powder with tetrahydrofuran (THF) or other suitable liquids by determining the fraction of polymer additives recovered by extraction.
- the polymer additives are at least 80 wt .-% in the polymeric matrix, more preferably the proportion of polymer additives, which can be found in the matrix is at least 85 wt .-%, based on the total amount of polymer additive.
- the proportion of polymer additive that is not in the matrix often crystallizes out and can be separated off, for example by filtration.
- the organic polymers are, for example, polyethylene, polypropylene, polyamide, polyacrylonitrile, polycarbonate, acrylonitrile-butadiene-styrene (ABS), polyvinyl chloride, or polyester. Further examples of the equipment or stabilization of organic polymers with polymer additives can be found in the Plastics Additives Handbook, 5th edition, Hanser Verlag, ISBN 1-56990-295-X.
- thermoplastic polymer In order to stabilize a thermoplastic polymer against UV exposure, it is possible, for example, to melt the polymer first in an extruder, to incorporate a powder produced according to the invention into the polymer melt at a temperature of, for example, 180 to 200 ° C. and UV absorber from it produces a granulate from which then films, fibers, or moldings are prepared by known methods, which are stabilized against the action of UV radiation.
- particles according to the invention may have the same or different compositions and size distributions.
- particles containing UV absorbers can also be used together with other particles according to the invention which comprise, for example, stabilizers for organic polymers such as antioxidants for stabilizing organic polymers and lacquer layers.
- aqueous polymer dispersions of the invention or those thereof e.g. obtained by spray drying polymer powder containing particles of the invention containing at least one antioxidant, for example phenolic compounds.
- polymer powders which contain as effect substance at least one antistatic agent for organic polymers or an antifogging agent for organic polymers or a colorant for organic polymers or at least one reactive sizing agent for paper.
- the particles of the present invention may also be used in conjunction with classical additive systems to improve overall efficiency.
- classical additive systems for example, with conventional emulsion concentrates, suspension concentrates, suspoemulsion concentrates of polymer additives.
- conventional aqueous preparations of the abovementioned polymer additives By mixing the particles according to the invention with conventional aqueous preparations of the abovementioned polymer additives, on the one hand a broadening of the spectrum of action is achieved, when the conventional preparation contains polymer additives other than the particles of the invention.
- the advantages of the particles according to the invention are not lost by formulating with conventional aqueous polymer additive preparations, in particular the improved migration stability. Consequently, one can improve the performance of a conventional aqueous polymer additive formulation by formulation with particles of the invention containing the same polymer additives.
- the leaching of the polymer additive from the treated organic polymer when exposed to water is significantly reduced compared to other formulations. Furthermore, interactions of the polymer additives with other formulation ingredients or co-polymer additives, as commonly encountered in conventional formulation, are not observed. In addition, the degradation of the polymer additives by substrate or environmental influences, such as pH of the environment or UV radiation is slowed down or even completely prevented. Surprisingly, a reduced effectiveness of the polymer additives by incorporation into a polymer matrix is generally not observed.
- the production process of the particles according to the invention by aqueous emulsion polymerization using a seed latex allows very efficient access to the particles.
- the particles according to the invention are present, for example, as constituents of polymer dispersions or of polymer powders and can easily be incorporated into organic polymers.
- the particles of the invention are particularly suitable for the equipment, for example against static charge or fogging and / or stabilization, for example against oxidation, exposure to UV rays, heat and / or light, of organic polymers.
- the following examples are intended to illustrate the invention without, however, limiting it.
- the particle sizes were measured by light scattering with a Coulter N4 Plus laser diffuser or alternatively with a Coulter 230 LS. It was always measured in about 0.1% aqueous preparations.
- Rongalite C sodium salt of a sulfinic acid derivative
- Lipamin® OK ethoxylated stearylamine, which with
- Example 3 147 g of deionized water, 31, 82 g of polystyrene seed (33%) with a particle size of about 30 nm and 52.5 g of maltodextrin C * Pur 01915 were placed in a nitrogen-purged reactor. While stirring, the internal temperature is raised to 80 ° C. introduced. Then, 10.17 g of a mixture of 9.2 g of deionized water and 31.5 g of a 2% sodium peroxodisulfate solution (feed 2) were added all at once.
- feed 2 was metered in over the course of 1.5 hours, and the remaining feed 3 was added simultaneously in 3.5 hours.
- feed 1 a mixture of 195.5 g of deionized water, 20.7 g of lipamine OK, 1.84 g of a 50% strength aqueous sulfuric acid, 6.90 g of dimethylaminoethyl methacrylate and 131.1 g of methyl methacrylate (feed 2) was then added. dosed in 2 hours. Then allowed to polymerize for a further 30 minutes.
- the separated coagulum was a total of 2.1 g, the solids content was determined to be 28.7%.
- the average particle size was 120 nm.
- Example 2 When Example 2 was repeated without the use of the polystyrene seed, no suitable dispersions were obtained.
- the Uvinul® 3008 was found largely unencapsulated on the stirrer and on the wall of the reactor.
- the dispersion had a solids content of 22%.
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Abstract
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JP2009528703A JP2010504385A (ja) | 2006-09-20 | 2007-09-18 | ポリマー添加剤含有粒子 |
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US8263327B2 (en) | 2007-04-26 | 2012-09-11 | Basf Se | Enzymatic method for the production of microcapsules |
WO2013120790A1 (en) * | 2012-02-14 | 2013-08-22 | Basf Se | Aqueous polymer dispersion obtainable by free-radically initiated emulsion polymerization in the presence of lignosulfonate |
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CN102264464A (zh) * | 2008-10-24 | 2011-11-30 | 巴斯夫欧洲公司 | 制备含有有效物质的微粒的方法 |
WO2010063658A1 (de) * | 2008-12-03 | 2010-06-10 | Basf Se | Wässrige anschlämmungen von feinteiligen füllstoffen, verfahren zu ihrer herstellung und ihre verwendung zur herstellung füllstoffhaltiger papiere |
GB2489420B (en) * | 2011-03-25 | 2013-02-13 | Renolit Cramlington Ltd | Flexible laminate film |
KR102707246B1 (ko) * | 2017-09-01 | 2024-09-20 | 바스프 에스이 | 오일-가용성 유기 uv 흡수제의 수계 농축 생성물 형태 |
KR102492405B1 (ko) | 2019-10-07 | 2023-01-27 | 주식회사 엘지화학 | 카르본산 변성 니트릴계 공중합체 라텍스의 제조방법 |
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- 2007-09-18 EP EP07820277A patent/EP2066702A1/de not_active Withdrawn
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8263327B2 (en) | 2007-04-26 | 2012-09-11 | Basf Se | Enzymatic method for the production of microcapsules |
WO2013120790A1 (en) * | 2012-02-14 | 2013-08-22 | Basf Se | Aqueous polymer dispersion obtainable by free-radically initiated emulsion polymerization in the presence of lignosulfonate |
US20140342171A1 (en) * | 2012-02-14 | 2014-11-20 | Basf Se | Aqueous polymer dispersion obtainable by free-radically initiated emulsion polymerization in the presence of lignosulfonate |
US9334398B2 (en) | 2012-02-14 | 2016-05-10 | Basf Se | Aqueous polymer dispersion obtainable by free-radically initiated emulsion polymerization in the presence of lignosulfonate |
Also Published As
Publication number | Publication date |
---|---|
EP2066702A1 (de) | 2009-06-10 |
US20120053283A1 (en) | 2012-03-01 |
US20090318605A1 (en) | 2009-12-24 |
JP2010504385A (ja) | 2010-02-12 |
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