发明名称 |
ADVANCED EPOXY RESINS HAVING IMPROVED IMPACT RESISTANCE WHEN CURED AND COATING COMPOSITIONS PREPARED THEREFROM |
摘要 |
Advanced epoxy resin compositions comprising a product resulting from reacting (A) a mixture containing (1) at least one polyglycidyl ether of a material having at least two aliphatic hydroxyl groups per molecule, (2) at least one epoxy resin having an average of from 2.6 to 6 glycidyl ether groups per molecule attached to one or more aromatic rings and optionally (3) one or more glycidyl ethers of a dihydric phenol; with (B) at least one dihydric phenol in the presence of a suitable quantity of a suitable catalyst; and wherein components (A) and (B) are present in quantities which provide an epoxy to phenolic hydroxyl ratio of from 1.4:1 to 4:1 and wherein the number of epoxy equivalents contributed by components (A-3) to the number of epoxy equivalents contributed by component (A-2) to the number of epoxy equivalents contributed by component (A-1) is from 0:0.05:1 to 0.3:0.6:1. Coating compositions containing the aforementioned advanced epoxy resins have improved chip resistance, chemical resistance or pencil hardness when cured. |
申请公布号 |
AU4431785(A) |
申请公布日期 |
1985.12.13 |
申请号 |
AU19850044317 |
申请日期 |
1985.05.20 |
申请人 |
DOW CHEMICAL COMPANY, THE |
发明人 |
CAVITT, MICHAEL B.;WASSBERG, NEAL L. |
分类号 |
C08G59/32;C08G59/00;C08G59/06;C08G59/14;C08G59/20;C08G59/38;C08G59/40;C08G59/62;C08L63/00 |
主分类号 |
C08G59/32 |
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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