发明名称 |
EPOXY RESIN SYSTEM CONTAINING POLYETHYLENE TETRAMINES AND TRIETHYLENE DIAMINE CATALYST FOR RESIN TRANSFER MOLDING PROCESSES |
摘要 |
A two-component curable epoxy resin system is disclosed. The resin system includes an epoxy resin component containing at least 80% by weight of a polyglycidyl ether of a polyphenol. The system also includes an hardener mixture containing mainly polyethylene tetraamines. The system include triethylene diamine in specific amounts as a catalyst. The system has beneficial curing characteristics that make it useful for producing fiber-reinforced composites in a resin transfer molding process. |
申请公布号 |
US2015203628(A1) |
申请公布日期 |
2015.07.23 |
申请号 |
US201114422047 |
申请日期 |
2011.11.11 |
申请人 |
Dow Global Technologies LLC |
发明人 |
Grunder Sergio;Koeniger Rainer;Morley Timothy A.;Jelic Nebjosa;Vervoort Sylvie;Reimers Martin;Cate Peter |
分类号 |
C08G59/50;C08J5/04;C08G59/24 |
主分类号 |
C08G59/50 |
代理机构 |
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代理人 |
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主权项 |
1. A curable epoxy resin system, comprising
1) an epoxy resin component containing one or more epoxy resins, wherein at least 80% by weight of the epoxy resins is one or more polyglycidyl ethers of a polyphenol that has an epoxy equivalent weight of up to about 250; 2) an amine hardener, wherein the amine hardener is a polyethylene tetraamine mixture containing at least 95% by weight polyethylene tetraamines, the mixture containing at least 40% by weight linear triethylene tetraamine, wherein at least 0.8 epoxy equivalents are provided to the reaction mixture by the epoxy resin component per amine hydrogen equivalent provided by the amine hardener; and 3) 0.01 to 0.5 moles of triethylene diamine per mole of primary and/or secondary amine compounds in the amine hardener, the triethylene diamine being present in the epoxy resin component, the amine hardener, or both. |
地址 |
Midland MI US |