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公开(公告)号：US4997865A
公开(公告)日：1991-03-05
申请号：US327964
申请日：1989-02-14
IPC分类号： C09D151/08 , C08F283/10 , C09D4/06 , C09D5/02 , C09D155/00 , C09D163/00 , C09D163/10 , C09D167/00 , C09D167/08
CPC分类号： C08F283/10 , C09D4/06
摘要： The invention relates to an aqueous coating agent, obtained from an epoxy resin, ethylenically unsaturated monomers, some of which contain carboxyl groups, a peroxide initiator in a proportion of at least 2% by weight, relative to the total weight of the monomers, a crosslinking agent, a neutralizing agent, organic solvents, and, if appropriate, further conventional additives, such as plasticizers, stabilizers, wetting agents, dispersion auxiliaries, catalysts and pigments. The coating agent is based on a binder (a) which is obtainable from(A) 20 to 80% by weight of an epoxy resin having an average of more than one epoxy group per molecule and having an average molecular weight of at least 500,(B) 1 to 60% by weight of polyester polycarboxylic acids having an average molecular weight of 500 to 5,000 and having an acid number of 30 to 150, and(C) 10 to 50% by weight of ethylenically unsaturated monomers, 10 to 50% by weight of the monomers containing carboxyl groups,where the sum of (A), (B) and (C) is 100% by weight, the binder (a) has an acid number of 20 to 150, and the crosslinking agents (b) used are phenolic and/or amino resins, with the proviso that the coating agent contains(a) 30 to 70% by weight of the binder (a),(b) 2 to 30% by weight, preferably 5 to 16% by weight, of the crosslinking agent (b),(c) 1 to 7% by weight, preferably 2 to 5% by weight, of ammonia and/or amine as neutralizing agent, and(d) 20 to 60% by weight of organic solvents,where the sum of (a), (b), (c) and (d) is 100% by weight. The present invention also relates to a process for the preparation of the coating agents, and the use thereof for coating of cans.
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2.发明授权Aqueous coating agent, process for its preparation, and its use for coating cans, based on acrylic monomers, epoxy-polyesters and methylol functional curing agents 失效水性涂料代理，其制备方法及其用于涂料的基于丙烯酸单体，环氧聚酯和甲基功能固化剂的用途
公开(公告)号：US5114993A
公开(公告)日：1992-05-19
申请号：US642243
申请日：1991-01-08
IPC分类号： C09D151/08 , C08F283/10 , C09D4/06 , C09D5/02 , C09D155/00 , C09D163/00 , C09D163/10 , C09D167/00 , C09D167/08
CPC分类号： C08F283/10 , C09D4/06
摘要： The invention relates to an aqueous coating agent, obtained from an epoxy resin, ethylenically unsaturated monomers, some of which contain carboxyl groups, a peroxide initiator in a proportion of at least 2% by weight, relative to the total weight of the monomers, a crosslinking agent, a neutralizing agent, organic solvents, and, if appropriate, further conventional additives, such as plasticizers, stabilizers, wetting agents, dispersion auxiliaries, catalysts and pigments. The coating agent is based on a binder a) which is obtainable fromA) 20 to 80% by weight of an epoxy resin having an average of more than one epoxy group per molecule and having an average molecular weight of at least 500,B) 1 to 60% by weight of polyester polycarboxylic acids having an average molecular weight of 500 to 5,000 and having an acid number of 30 to 150, andC) 10 to 50% by weight of ethylenically unsaturated monomers, 10 to 50% by weight of the monomers containing carboxyl groups,where the sum of A), B) and C) is 100% by weight, the binder a) has an acid number of 20 to 150, and the crosslinking agents b) used are phenolic and/or amino resins, with the proviso that the coating agent containsa) 30 to 70% by weight of the binder a),b) 2 to 30% by weight, preferably 5 to 16% by weight, of the crosslinking agent b),c) 1 to 7% by weight, preferably 2 to 5% by weight, of ammonia and/or amine as neutralizing agent, andd) 20 to 60% by weight of organic solvents,where the sum of a), b), c) and d) is 100% by weight. The present invention also relates to a process for the preparation of the coating agents, and the use thereof for coating of cans.
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