logo

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11130861 B1

PDFFull Text
Date of Patent:
Sep. 28, 2021

Filed:

Mar. 29, 2018

Soluble polyfunctional vinyl aromatic copolymer, method for producing same, curable resin composition and cured product thereof

Applicant:

Nippon Steel Chemical & Material Co., Ltd., Tokyo, JP;

Inventors:

Masanao Kawabe, Tokyo, JP;

Shinichi Iwashita, Tokyo, JP;

Assignee:

NIPPON STEEL Chemical & Material Co., Ltd., Tokyo, JP;

Attorney:

JCIPRNET

Primary Examiner:

Kregg T Brooks

Int. Cl.
CPC ...
C08L 71/12 (2006.01); C08K 5/03 (2006.01); C08L 25/08 (2006.01); C08L 63/00 (2006.01); C09D 125/08 (2006.01); H05K 1/03 (2006.01); C08F 212/34 (2006.01); C08F 212/06 (2006.01); C08F 212/08 (2006.01); C08F 212/36 (2006.01); C08F 4/14 (2006.01);
U.S. Cl.
CPC ...
C08L 71/12 (2013.01); C08F 212/06 (2013.01); C08F 212/08 (2013.01); C08F 212/34 (2013.01); C08F 212/36 (2013.01); C08K 5/03 (2013.01); C08L 25/08 (2013.01); C08L 63/00 (2013.01); C09D 125/08 (2013.01); H05K 1/0353 (2013.01); C08F 4/14 (2013.01);
Abstract

A novel soluble polyfunctional vinyl aromatic copolymer capable of yielding a cured product or molded body having improved heat resistance, compatibility, dielectric properties, wet heat reliability and resistance to thermal oxidative degradation. Disclosed herein is a soluble polyfunctional vinyl aromatic copolymer containing structural units derived from a divinyl aromatic compound (a), styrene (b), and a monovinyl aromatic compound (c) other than styrene. The copolymer includes structural units made up of an unsaturated hydrocarbon group represented by Formula (a1) and derived from the divinyl aromatic compound (a); and the copolymer includes, at terminals thereof, predetermined amounts of specific terminal groups having a vinyl group or a vinylene bond derived from monomers (a), (b), and (c). Also disclosed is a method for producing the copolymer.

Find Patent Forward Citations

Quick Actions:

Kawabe, Masanao. (2021). Soluble polyfunctional vinyl aromatic copolymer, method for producing same, curable resin composition and cured product thereof (U.S. Patent No. 11130861). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11130861

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…