Water dispersable, cyclic-carbonate-functionalized vinyl copolymer system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08F-220/28
C08F-220/34
C08F-220/38
C08L-033/14
C08F-220/18
C08F-220/60
C08F-220/14
출원번호
US-0497357
(2010-08-12)
등록번호
US-8853322
(2014-10-07)
우선권정보
EP-09171362 (2009-09-25)
국제출원번호
PCT/EP2010/061756
(2010-08-12)
§371/§102 date
20120619
(20120619)
국제공개번호
WO2011/035982
(2011-03-31)
발명자
/ 주소
Mecfel-Marczewski, Joanna
Walther, Burkhard
Mezger, Jochen
Staudhamer, Rosita
출원인 / 주소
Construction Research & Technology GmbH
대리인 / 주소
Curatolo Sidoti Co., LPA
인용정보
피인용 횟수 :
2인용 특허 :
3
초록▼
A water-dispersible, cyclocarbonate-functionalized vinyl copolymer binder, a process for the preparation of the binder, an aqueous dispersion containing the binder, a system comprising the binder, water and an (amine) curing agent and the use of the binder for the production of a hardened coating ar
A water-dispersible, cyclocarbonate-functionalized vinyl copolymer binder, a process for the preparation of the binder, an aqueous dispersion containing the binder, a system comprising the binder, water and an (amine) curing agent and the use of the binder for the production of a hardened coating are proposed. It was surprisingly found that this binder, in which the emulsifier groups according to the invention are incorporated in the polymer chain, gives stable aqueous dispersions having a solids content of up to a 30% by weight.
대표청구항▼
1. A water-dispersible, cyclocarbonate-functionalized vinyl copolymer binder having structural groups derived from i) at least one vinyl monomer (I) having at least one cyclic carbonate group,ii) at least one vinyl monomer (II) having at least one emulsifier group andiii) optionally at least one cop
1. A water-dispersible, cyclocarbonate-functionalized vinyl copolymer binder having structural groups derived from i) at least one vinyl monomer (I) having at least one cyclic carbonate group,ii) at least one vinyl monomer (II) having at least one emulsifier group andiii) optionally at least one copolymerizable vinyl monomer (III), which differs from the monomers (I) and (II),wherein the vinyl monomer (I) is in whichR1 is H or CH3;R2 is H, alkyl, aryl, aralkyl or alkaryl; andX is alkylene, arylene, aralkylene or alkarylene,and the vinyl monomer (II) is a compound of the formula (IV): in whichR1 is H or CH3;R3 is H or alkyl;Y is O, CH2, CH2O, NH or CH2NH;Z is SO3(−) or N(CH3)3(−);m is 1; andn is 0 to 10. 2. The binder according to claim 1, wherein the monomer (I) has a molecular weight of 172 to 1500. 3. The binder according to claim 1, wherein the copolymerizable vinyl monomer (III) is selected from conjugated dienes, vinylaromatics, vinyl halides, vinyl esters, vinyl ethers, heterocyclic vinyl compounds, (meth)acrylates, (meth)acrylic acid, (meth)acrylamide, (meth)acrylonitrile, esters of monoethylenically unsaturated dicarboxylic acids or mixtures thereof. 4. The binder according to claim 3, wherein the monomer (III) has a molecular weight of 42 to 1000. 5. The binder according to claim 1, having an average molecular weight (Mn) of 260 to 2,000,000. 6. The binder according to claim 1 having structural groups derived from 3 to 96 mol % of monomer (I),3 to 96 mol % of monomer (II) and0 to 96 mol % of monomer (III). 7. The binder according to claim 1, wherein substantially no carboxylate groups are present in the binder. 8. The binder according to claim 1, wherein the monomers (II) and (III) contain substantially no groups reactive with cyclic carbonate groups. 9. A process for the preparation of the binder according to claim 1, wherein the monomers (I), (II) and optionally (III) are subjected to free radical copolymerization. 10. The process according to claim 9, wherein the polymerization is effected by adding a mixture of the monomers, optionally together with a free radical initiator, dropwise to a boiling solvent, whereupon the solvent is distilled off, the binder obtained is transferred to the aqueous phase and ionizable emulsifier groups are converted into the ionic form. 11. The process according to claim 9, wherein the polymerization takes place by direct copolymerization in water of a mixture of the monomers, optionally together with a water-soluble free-radical initiator. 12. An aqueous dispersion comprising at least one binder according to claim 1 and water. 13. The aqueous dispersion according to claim 12, having a solids content of at least 10% by weight. 14. A system comprising at least one binder according to claim 1, water and at least one curing agent and optionally catalysts, additives and/or auxiliaries. 15. The system according to claim 14, wherein the system is a two-component system, optionally having a curing component separated from the other components. 16. The system according to claim 14, wherein the curing agent is an amine having at least one HNR3R4 group, in which R3 and R4, independently of one another, are H, aliphatic, aromatic, aliphatic-aromatic, cycloaliphatic or heterocyclic groups, C1-8-alkyl, C6-14-aryl, C7-20-aralkyl, C7-20-alkaryl, or C5-8-cycloalkyl, in which R3 and R4 are not simultaneously H, and R3 and R4 together may form a cycloaliphatic system, or a 5-8-membered cycloaliphatic ring. 17. The system according to claim 16, wherein the ratio of the cyclic carbonate groups to the HNR3R4 groups is 20:1 to 0.2:1. 18. The system according to claim 16, wherein the amine is monofunctional, difunctional or polyfunctional and selected from alkylamines, arylamines, aralkylamines, alkarylamines, cycloalkylamines, alkylenediamines, cycloalkylenediamines, amino functionalized polyalkylene glycols, polyamines, polyimines, polyamides, polyaminoamides, polyurethanes, polyvinylamines or mixtures thereof. 19. The system according to claim 14, wherein a catalytically active amount of a base is present as a catalyst. 20. The system according to claim 14, wherein additives used are salts, magnesium chloride, calcium chloride, calcium sulphate, barium sulphate; anhydrite, gypsum, chalk; oxides, silica, alumina; hydroxides, magnesium hydroxide, aluminium hydroxide; coloured pigments, titanium dioxide, iron oxide; carbon, carbon black, graphite, exfoliated graphite; metal pigments, aluminium; water-absorbing fillers, cement; aluminosilicates, talc, and/or kaolin; and auxiliaries used are plasticizers, stabilizers, UV absorbers, antioxidants, antifoams, and/or wetting additives. 21. The binder according to claim 1, wherein R2 is H, C1-8-alkyl, C6-14-aryl, C7-20-aralkyl or C7-20-alkaryl. 22. The binder according to claim 1, wherein X is alkylene, arylene, aralkylene or alkarylene, which optionally contain (poly)ester, (poly)ether, (poly)amide, (poly)urethane and/or (poly)carbonate groups; C1-8-alkylene or methylene. 23. The binder according to claim 1, wherein the copolymerizable vinyl monomer (III) is selected from C1-8-alkyl (meth)acrylates, C6-14-aryl (meth)acrylates, C7-20-aralkyl (meth)acrylates or styrene. 24. The binder according to claim 1, wherein not more than 5 mol % of carboxylate groups are present in the binder. 25. The binder according to claim 1, wherein the monomers (II) and (III) contain not more than 5 mol % of reactive groups with cyclic carbonate groups.
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이 특허에 인용된 특허 (3)
Alford, John A.; Force, Carlton G.; Gowan, Jr., John W., Emulsion polymerization emulsifier.
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