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:
Jan. 11, 2005
Filed:
Apr. 21, 2000
Mutsumi Maeda, Chiba, JP;
Hiroaki Adachi, Kanagawa, JP;
Mutsumi Maeda, Chiba, JP;
Hiroaki Adachi, Kanagawa, JP;
Asahi Kasei Kabushiki Kaisha, Osaka, JP;
Abstract
Provided is a modified polyphenylene ether resin which is a reaction product of 100 parts by weight of (A) a polyphenylene ether having a main chain structure of the following formula (1):(wherein Rand Reach independently represents hydrogen, a primary or secondary lower alkyl, a phenyl, an aminoalkyl or a hydrocarbonoxy, and Rand Reach independently represent, hydrogen, a primary or secondary lower alkyl or a phenyl), and 0.01 to 10.0 parts by weight of (B) a modifier selected from conjugated non-aromatic diene compounds, dienophilic compounds having one dienophile group and precursors of the diene or dienophilic compounds, wherein the number of rearrangement structures each represented by the following formula (2):(wherein R, R, R, and Rhave the same meanings as defined above in the formula (1)) is less than 0.01 per 100 phenylene ether units of the formula (1). The resin has sufficient functionality and is well balanced between color tone/appearance and heat resistance/mechanical physical properties.