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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 11118007 B1

PDFFull Text
Date of Patent:
Sep. 14, 2021

Filed:

Sep. 11, 2017

Crystalline polyester resin and flame-retardant sealing resin composition

Applicant:

Toyobo Co., Ltd., Osaka, JP;

Inventors:

Yuki Murakami, Shiga, JP;

Ryo Hamasaki, Shiga, JP;

Assignee:

TOYOBO CO., LTD., Osaka, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

Kelechi C Egwim

Int. Cl.
CPC ...
C08G 63/553 (2006.01); C08G 63/676 (2006.01); C08G 63/199 (2006.01); C08G 63/672 (2006.01); C08K 5/521 (2006.01); C08K 3/10 (2018.01); C08K 5/5313 (2006.01); C09K 3/10 (2006.01); C09K 21/12 (2006.01);
U.S. Cl.
CPC ...
C08G 63/676 (2013.01); C08G 63/199 (2013.01); C08G 63/553 (2013.01); C08G 63/672 (2013.01); C08K 5/521 (2013.01); C08K 5/5313 (2013.01); C09K 3/10 (2013.01); C09K 21/12 (2013.01); C08G 2190/00 (2013.01); C09K 2003/1078 (2013.01); C09K 2200/0417 (2013.01); C09K 2200/0655 (2013.01);
Abstract

The present invention aims to provide a crystalline polyester resin which satisfies both of a high melting point and a high fluidity, and a flame-retardant sealing resin composition using the same. A crystalline polyester resin (A) containing polycarboxylic acid components and polyhydric alcohol components as copolymerizing components, characterized in that a copolymerizing rate of a 2,6-naphthalenedicarboxylic acid component is from 40 to 100 molar % when a total of the polycarboxylic acid components in the crystalline polyester resin (A) is taken as 100 molar %, that a 1,4-butanediol component is copolymerized as a polyhydric alcohol component, and that a copolymerizing rate of the 1,4-butanediol component is 40 molar % or less when a total of the polyhydric alcohol components is taken as 100 molar %.

Find Patent Forward Citations

Murakami, Yuki. (2021). Crystalline polyester resin and flame-retardant sealing resin composition (U.S. Patent No. 11118007). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11118007

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

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