发明名称 |
Thermosetting aqueous varnish compositions |
摘要 |
Aqueous thermosetting varnish compositions that are particularly water resistant after curing are disclosed. These compositions contain by weight (A) about 20-40 percent of a solution copolymer polymerized from monomers consisting essentially of (a) about 50-75 percent vinyl ester of a C1-C3 carboxylic acid, (b) about 10-45 percent of C1-C8 alkyl acrylate or methacrylate ester and (c) about 5-15 percent of a mixture of (i) at least about 0.5 percent monoethylenically unsaturated C3-C5 carboxylic acid and (ii) at least about 2 percent C2-C4 hydroxyalkyl acrylate or methacrylate. The copolymer is polymerized at a temperature of at least 110 DEG C. and at a non-volatile solids content of 60-80 percent. Also present in the varnish are (B) about 35-55 percent water, (C) about 7-15 percent water-miscible organic solvent, (D) about 7-15 percent cross-linking agent, and (E) an amount of a volatile amine sufficient to disperse the copolymer in the vehicle provided by the water and water miscible organic solvent.
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申请公布号 |
US4450251(A) |
申请公布日期 |
1984.05.22 |
申请号 |
US19830473546 |
申请日期 |
1983.03.09 |
申请人 |
DESOTO, INC. |
发明人 |
ZYCHOWSKI, EDWIN A.;RICHARDS, RONALD L. |
分类号 |
C08L31/00;C08F218/02;C08F218/08;C08L31/04;C08L61/00;C08L61/20;C09D131/04;(IPC1-7):C08K5/18 |
主分类号 |
C08L31/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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