GLYCIDYL ETHERS OF DIVINYLBENZENE DERIVATIVES AND OLIGOMERS THEREOF AS CURABLE EPOXY RESINS

摘要

Cured epoxy resins are widespread because of their excellent mechanical and chemical properties. Typically, epoxy resins based on bisphenol A diglycidyl ethers or bisphenol F diglycidyl ethers are used, but these are problematic for many sectors because of their effect on the endocrine system. The present invention relates to glycidyl ethers of divinylbenzene-based diols and/or polyols, and to curable epoxy resin compositions based thereon as alternatives to the bisphenol A diglycidyl ethers or bisphenol F diglycidyl ethers, or the epoxy resin compositions based thereon.

主权项

1: A glycidyl ether of formula (I):or an oligomeric glycidyl ether thereof,
wherein: R1=B and R2=CH2OA and R3=H and R4=H, or R1=CR9R10OA and R2=CH2OA and R3=H and R4=H, or R1=B and R2=H and R3=CH2OA and R4=H, or R1=B and R2=H and R3=CH2OA and R4=CR9R10OA; R5=B and R6=CH2OA and R7=H and R8=H, or R5=CR9R10OA and R6=CH2OA and R7=H and R8=H, or R5=B and R6=H and R7=CH2OA and R8=H, or R5=B and R6=H and R7=CH2OA and R8=CR9R10OA, A is a glycidyl group or a hydrogen atom; B is a hydrogen atom or a C1-C10-alkyl group; R9 and R10 are each independently a hydrogen atom or a C1-C4-alkyl group; at least 2 A radicals are each a glycidyl group; the oligomeric glycidyl ether forms through intermolecular reaction of glycidylated radicals with non-glycidylated radicals comprising hydroxyl groups in the glycidyl ether of formula (I) and partially glycidylated or non-glycidylated derivatives thereof with opening of the oxirane ring, such that a hydroxyl group which forms through ring-opening of the oxirane ring in the oligomeric glycidyl ether is optionally in glycidylated form; and the oligomeric glycidyl ether has an oligomerization level of 2 to 100 and an average of at least 1.3 glycidyl groups.