IP Library Granted Patent US 10,851,200
Granted Patent B2
US 10,851,200 · App. 16/677,811 · Granted Dec 1, 2020

Resin composition and method of producing laminate

Inventors: Kazuya Kiguchi (Tokyo, JP); Tomoo Nishiyama (Tokyo, JP); Yoshitaka Takezawa (Tokyo, JP)
Assignee: SHOWA DENKO MATERIALS CO., LTD.
C08G59/245B32B7/12B32B15/09B32B15/20C08J5/18C08J2363/04
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Quick Facts
Patent No.
US 10,851,200
App. No.
16/677,811
Granted
Dec 1, 2020
Kind
B2
Abstract

Provided is a resin composition for forming a resin layer of a laminate by coating, the resin composition having a thixotropic index at 25° C. of from 3 to 10, and the laminate includes a pair of members and the resin layer arranged between the pair of members.

Claims (11)

1. A resin composition for forming a resin layer of a laminate by coating, the resin composition having a thixotropic index at 25° C. of from 3 to 10 and comprising an epoxy monomer having a mesogenic skeleton and a curing agent, and the laminate comprising a pair of members and the resin layer arranged between the pair of members,

the thixotropic index being a ratio (viscosity B/viscosity A) of a viscosity B (Pa·s) measured under conditions of 25° C. and 0.5 min −1 (rpm) using an E-type viscometer with respect to a viscosity A (Pa·s) measured under conditions of 25° C. and 5 min −1 (rpm) using an E-type viscometer.

2. The resin composition according to claim 1 , wherein the epoxy monomer having a mesogenic skeleton comprises a compound represented by the following Formula (I):

wherein, in Formula (I), each of R 1 to R 4 independently represents a hydrogen atom or an alkyl group having from 1 to 3 carbon atoms.

3. The resin composition according to claim 1 , wherein the curing agent comprises a phenol novolac resin.

4. A method of producing a laminate, the method comprising:

forming a resin layer using the resin composition according to claim 1 on a first member; and

arranging a second member on the resin layer.

5. The method according to claim 4 , wherein the epoxy monomer having a mesogenic skeleton comprises a compound represented by the following Formula (I):

wherein, in Formula (I), each of R 1 to R 4 independently represents a hydrogen atom or an alkyl group having from 1 to 3 carbon atoms.

6. The method according to claim 4 , wherein the curing agent comprises a phenol novolac resin.

Assignments (4)
CHANGE OF ADDRESS Recorded Feb 14, 2024
From: RESONAC CORPORATION
To: RESONAC CORPORATION
Reel/Frame 066599/0037 →
CHANGE OF NAME Recorded Mar 8, 2023
From: SHOWA DENKO MATERIALS CO., LTD.
To: RESONAC CORPORATION
Reel/Frame 062992/0805 →
CHANGE OF NAME Recorded Oct 28, 2020
From: HITACHI CHEMICAL COMPANY, LTD.
To: SHOWA DENKO MATERIALS CO., LTD.
Reel/Frame 054236/0936 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 8, 2019
From: KIGUCHI, KAZUYA; NISHIYAMA, TOMOO; TAKEZAWA, YOSHITAKA
To: HITACHI CHEMICAL COMPANY, LTD.
Reel/Frame 050955/0750 →