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:
Aug. 16, 2005
Filed:
Aug. 28, 2003
Satoru Amou, Hitachi, JP;
Shinji Yamada, Tsukuba, JP;
Takao Ishikawa, Hitachi, JP;
Takao Miwa, Hitachinaka, JP;
Satoru Amou, Hitachi, JP;
Shinji Yamada, Tsukuba, JP;
Takao Ishikawa, Hitachi, JP;
Takao Miwa, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
According to the present invention, there is provided a low dielectric loss tangent resin composition containing a crosslinking component having a weight average molecular weight of not more than 1,000 and a plurality of styrene groups and represented by the formula [1],wherein R is a hydrocarbon skeleton which may have a substituent, Ris hydrogen, methyl or ethyl, m is an integer of 1-4 and n is an integer of 2 or more, and further containing at least one member selected from a high polymer having a weight average molecular weight of not less than 5,000 and a filler, which resin composition can give a cured product having a good flexibility, high tensile strength and low dielectric constant and dielectric loss tangent.