Epoxy compounds and cured epoxy resins obtained by curing the compounds
AssigneesSumitomo Chemical Company, Limited, Hitachi, Ltd.
InventorsShinya Tanaka, Yoshitaka Takezawa, Hiroyuki Takahashi
Life of this patent
Estimating the term…
Abstract
Novel epoxy compounds represented by the general formula (1) wherein Ar1, Ar2 and Ar3 are each optionally substituted phenylene, cyclohexanyl or the like, R1, R2, R3, R4, R5 and R6 are each hydrogen or alkyl of 1 to 18 carbon atoms, and Q1 and Q2 are each alkylene of 1 to 9 carbon atoms or the like, which are useful as the raw material of cured epoxy resins exhibiting liquid crystallinity; a process for the production thereof; and compositions containing the compounds.
Claims10
An epoxy compound represented by the formula (2):
- wherein
- A4 denotes a divalent group represented by the following formula:
- in which R denotes a hydrogen atom or an alkyl group of 1 to 18 carbon atoms, c denotes an integer of 1 to 7, h denotes an integer of 1 to 4, and when more than one R exists in said divalent group, all of R may be the same group or different groups;
- R1, R2, R3, R4, R5 and R6 are the same or different and each denotes a hydrogen atom or an alkyl group of 1 to 18 carbon atoms;
- and
- Q3 denotes any one of groups represented by the following formulas:
- in which m denotes an integer of 1 to 9, p and q denote an integer of 1 to 8, and the sum of p and q is 9 or less, and methylene groups composing the group represented by Q3 are optionally substituted with an alkyl group of 1 to 18 carbon atoms.
A method for producing an epoxy compound represented by the following formula (2):
- wherein A4, R1, R2, R3, R4, R5, R6 and Q3 each are as defined below, which comprises reacting a compound represented by the formula:
- wherein A4 denotes a divalent group represented by the following formula:
- in which R denotes a hydrogen atom or an alkyl group of 1 to 18 carbon atoms, c denotes an integer of 1 to 7, h denotes an integer of 1 to 4, and when more than one R exists in said divalent group, all of R may be the same group or different groups;
- a compound represented by the formula:
- wherein R1, R2 and R3 are the same or different and each denotes a hydrogen atom or an alkyl group of 1 to 18 carbon atoms, X1 denotes a halogen atom, and Q3 denotes any one of groups represented by the following formulas:
- in which m denotes an integer of 1 to 9, p and q denote an integer of 1 to 8, and the sum of p and q is 9 or less, and methylene groups composing the group represented by Q3 are optionally substituted with an alkyl group of 1 to 18 carbon atoms;
- and a compound represented by the following formula:
- wherein R4, R5 and R6 are the same or different and each denotes a hydrogen atom or an alkyl group of 1 to 18 carbon atoms, Q3 is as defined above, and X2 denotes a halogen atom, in the presence of a base.
Dependencies are inferred from the claim text.