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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 10800914 B1

PDFFull Text
Expired
Date of Patent:
Oct. 13, 2020

Filed:

Jun. 22, 2017

Active ester composition and cured product thereof

Applicant:

Dic Corporation, Tokyo, JP;

Inventors:

Yutaka Satou, Ichihara, JP;

Akito Kawasaki, Ichihara, JP;

Tatsuya Okamoto, Ichihara, JP;

Kazuhisa Yamoto, Ichihara, JP;

Assignee:

DIC Corporation, Tokyo, JP;

Attorney:

Locke Lord LLP

Primary Examiner:

Lawrence D Ferguson

Int. Cl.
CPC ...
C08L 67/02 (2006.01); H01L 23/31 (2006.01); H01L 23/29 (2006.01); C08G 59/02 (2006.01); H05K 1/03 (2006.01); C08L 61/06 (2006.01); H01B 3/42 (2006.01); C08L 63/00 (2006.01);
U.S. Cl.
CPC ...
C08L 67/02 (2013.01); C08G 59/02 (2013.01); C08L 61/06 (2013.01); H01B 3/421 (2013.01); H01L 23/29 (2013.01); H01L 23/293 (2013.01); H01L 23/31 (2013.01); H05K 1/03 (2013.01); C08L 63/00 (2013.01); C08L 2203/206 (2013.01);
Abstract

Provided are an active ester composition capable of exhibiting high curability and forming a cured product with various excellent properties such as low dielectric properties, a cured product thereof, and a semiconductor encapsulating material and a printed wiring board which are obtained using the active ester composition. The active ester composition includes, as essential components, an active ester compound (A) and a phenolic hydroxyl group-containing compound (B), in which the active ester compound (A) is an esterification product of a compound having one phenolic hydroxyl group in the molecular structure (a1) and an aromatic polycarboxylic acid or an acid halide thereof (a2). Also provided are a cured product thereof, and a semiconductor encapsulating material and a printed wiring board which are obtained using the active ester composition.

Find Patent Forward Citations

Satou, Yutaka. (2020). Active ester composition and cured product thereof (U.S. Patent No. 10800914). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10800914

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

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