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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 9944732 B1

PDFFull Text
Expired
Date of Patent:
Apr. 17, 2018

Filed:

Dec. 27, 2013

Radical polymerization initiator, multi-branched polymer, varnish, adhesive agent, coating material, sealing material, semiconductor, and electronic device

Applicant:

Hitachi, Ltd., Chiyoda-ku, Tokyo, JP;

Inventors:

Yuri Kajihara, Tokyo, JP;

Takahito Muraki, Tokyo, JP;

Jun Nunoshige, Tokyo, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:

Crowell & Moring LLP

Primary Examiner:

Robert Harlan

Int. Cl.
CPC ...
C08F 120/14 (2006.01); C07F 5/02 (2006.01); C08F 112/08 (2006.01); C09J 125/06 (2006.01); C09J 133/12 (2006.01); C08F 12/08 (2006.01); C08F 4/52 (2006.01); C08F 4/04 (2006.01); C09D 125/06 (2006.01); C09D 133/12 (2006.01);
U.S. Cl.
CPC ...
C08F 120/14 (2013.01); C07F 5/025 (2013.01); C08F 4/04 (2013.01); C08F 4/52 (2013.01); C08F 12/08 (2013.01); C08F 112/08 (2013.01); C09D 125/06 (2013.01); C09D 133/12 (2013.01); C09J 125/06 (2013.01); C09J 133/12 (2013.01); H01L 2224/48247 (2013.01); H01L 2924/181 (2013.01);
Abstract

This invention is intended to synthesize a multi-branched polymer, which has an uniform molecular chain lengths and is free from branch defects, without the need for purification. This invention is also intended to synthesize a polyfunctional radical polymerization initiator represented by Formula 1: wherein n is an integer of 1 or larger; Y is a polyfunctional unsaturated compound; Ris a hydrocarbon group; Ris a structure in which one molecule of a radically polymerizable unsaturated hydrocarbon compound is bound to Rand the oxygen atom; Xof B—X(boron-X) bond is an alkoxy or phenyl group; and Xof B—X(boron-X) bond is an alkoxy or phenyl group.

Find Patent Forward Citations

Kajihara, Yuri. (2018). Radical polymerization initiator, multi-branched polymer, varnish, adhesive agent, coating material, sealing material, semiconductor, and electronic device (U.S. Patent No. 9944732). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9944732

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

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