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US 11,453,743 B2Granted
Thermoset epoxy resin, its preparing composition and making process thereof
AssigneeChanda Chemical Corp.
InventorsChien-Hsin Wu, Ying-Chi Huang, Kuan-Ting Chen, Chia-Hsuan Lin, Sheng-Hong A. Dai, Ru-Jong Jeng
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Abstract
A thermoset epoxy resin, its preparing composition and making process are disclosed. In particular, the thermoset epoxy resin is glycidyl ether of diphenolic bis-carbamate and formed by curing a one component epoxy composition and has a general structure as shown in formula (1).
Claims12
A thermoset epoxy resin, having a structure as shown in formula (1)
- where R is derived from a diaminosiloxane or a polyether diamine;
- where Ep has a structure derived from bisphenol A diglycidyl ether or diglycidyl ether of poly(propylene glycol);
- and where m is an integer of 1-5 and x is a numbers between 1 to 25.
A process for making thermoset epoxy resin containing carbamate groups, comprising:
- (1) providing a self-hardener having a structure as shown in formula (9) and a epoxy compound, wherein weight ratio of the self-hardener to the epoxy compound is 0.5˜20;
- where R is derived from a diaminosiloxane or a polyether diamine, and m is an integer of 1-5;
- (2) mixing the self-hardener and the epoxy compound in a solvent to form a pre-epoxy product;
- and (3) performing a curing reaction to have the pre-epoxy product to form the thermoset epoxy resin containing carbamate groups.
1 more element
Dependencies are inferred from the claim text.