发明名称 |
Process for producing thermosetting finishing powders |
摘要 |
Solid copolymers are produced by copolymerizing a mixture of: (A) at least 30% by weight of a monomer having the formula: <IMAGE> wherein R1 is H or CH3 and R2 is an alkyl radical containing from 1 to 14 carbon atoms; (B) from 3 to 20% by weight of an ethylenic alpha , beta unsaturated carboxylic acid or anhydride thereof, or from 3 to 40% by weight of glycidyl acrylate or glycidyl methacrylate; and (C) from 0 to 67% by weight of a monomer copolymerizable with said monomers (A) and (B). Preferably, the mixture is first bulk-polymerized until conversion to the copolymer is from 10 to 80% by weight and the polymerization is completed by suspension-polymerization. Thermosetting solid coating compositions are produced by mixing a major proportion of a solid copolymer so produced with a minor proportion of a cross-linking compound or with an epoxy resin containing at least 2 epoxy radicals in the molecule in presence of a tertiary amine curing accelerator.
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申请公布号 |
US4042645(A) |
申请公布日期 |
1977.08.16 |
申请号 |
US19730426954 |
申请日期 |
1973.12.13 |
申请人 |
MITSUI TOATSU CHEMICALS, INCORPORATED |
发明人 |
HIROTA, KUNIOMI;MASUMOTO, AKIO;OZAWA, HIROSHI;KOBAYASHI, NOBUKI;HONDA, TERUO |
分类号 |
C08F2/20;C08F220/12;C08F220/32;C08L33/06;C09D133/06;(IPC1-7):C08F2/20;C08F6/00;C08L33/04 |
主分类号 |
C08F2/20 |
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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