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.:
Date of Patent:
Jul. 20, 2021
Filed:
May. 21, 2020
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Hiroaki Umehara, Fukushima, JP;
Hiroharu Inoue, Osaka, JP;
Abstract
A polyphenylene ether resin composition includes a modified polyphenylene ether copolymer, a high-molecular-weight compound, and a crosslinking agent for the modified polyphenylene ether copolymer. The modified polyphenylene ether copolymer includes a substituent having a carbon-carbon unsaturated double bond at a molecular chain end of the modified polyphenylene ether copolymer. The high-molecular-weight compound has a glass transition temperature (Tg) measured by differential scanning calorimetry of 20° C. or lower and has a number-average molecular weight Mn ranging from 1000 to 10000, inclusive. The crosslinking agent includes at least two carbon-carbon unsaturated double bonds per molecule, and includes at least one of dicyclopentadiene acrylate and dicyclopentadiene methacrylate. In a cured state of the polyphenylene ether resin composition, the modified polyphenylene ether copolymer is phase separated from the high-molecular-weight compound.