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. 08, 2017
Filed:
Oct. 27, 2011
Takashi Matsuda, Fukushima, JP;
Kiyotaka Komori, Fukushima, JP;
Akiyoshi Nozue, Mie, JP;
Takayuki Suzue, Mie, JP;
Mitsuyoshi Nishino, Fukushima, JP;
Toshiyuki Asahi, Osaka, JP;
Naoyuki Tani, Osaka, JP;
Yoshito Kitagawa, Nara, JP;
Takashi Matsuda, Fukushima, JP;
Kiyotaka Komori, Fukushima, JP;
Akiyoshi Nozue, Mie, JP;
Takayuki Suzue, Mie, JP;
Mitsuyoshi Nishino, Fukushima, JP;
Toshiyuki Asahi, Osaka, JP;
Naoyuki Tani, Osaka, JP;
Yoshito Kitagawa, Nara, JP;
Abstract
A laminate with superior thermal conductivity, heat resistance, drill workability, and fire retardancy is provided. In a prepreg obtained by impregnating a woven or nonwoven fabric base with a thermosetting resin composition, the thermosetting resin composition contains 80 to 200 parts by volume of an inorganic filler per 100 parts by volume of a thermosetting resin, the inorganic filler contains (A) gibbsite type aluminum hydroxide particles having an average particle diameter (D) of 2 to 15 μm and (B) magnesium oxide having an average particle diameter (D) of 0.5 to 15 μm, and a compounding ratio (volume ratio) of the gibbsite type aluminum hydroxide particles (A) to the magnesium oxide (B) is 1:0.3 to 3.