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Patent Searching and Data


Title:
PREPREG, METAL-CLAD LAMINATE, AND PRINTED CIRCUIT BOARD
Document Type and Number:
WIPO Patent Application WO/2011/152413
Kind Code:
A1
Abstract:
The disclosed prepreg comprises a base material impregnated with a resin composition. Said resin composition contains: aluminum hydroxide with a mean particle diameter between 2.5 and 4.5 µm; and a glass filler with a mean particle diameter between 1.0 and 3.0 µm, a specific gravity between 2.3 and 2.6 g/cm³, and a SiO2 content between 50% and 65% by mass. The aluminum hydroxide and glass filler constitute a total of between 30% and 50% of the total solid mass of the resin composition. Using this prepreg, despite the use of aluminum hydroxide in parallel with an inorganic filler such as silica, a highly-workable metal-clad laminate with a low coefficient of thermal expansion and an inorganic filler uniformly dispersed therein can be produced.

Inventors:
GOUZU, Shuuji (1500, Ogawa, Chikusei-sh, Ibaraki 21, 〒3088521, JP)
合津 周治 (〒21 茨城県筑西市小川1500番地 日立化成工業株式会社内 Ibaraki, 〒3088521, JP)
Application Number:
JP2011/062517
Publication Date:
December 08, 2011
Filing Date:
May 31, 2011
Export Citation:
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Assignee:
HITACHI CHEMICAL COMPANY, LTD. (1-1 Nishi-Shinjuku 2-chome, Shinjuku-ku Tokyo, 49, 〒1630449, JP)
日立化成工業株式会社 (〒49 東京都新宿区西新宿二丁目1番1号 Tokyo, 〒1630449, JP)
GOUZU, Shuuji (1500, Ogawa, Chikusei-sh, Ibaraki 21, 〒3088521, JP)
International Classes:
C08L63/00; B32B15/08; C08G59/62; C08J5/24; C08K3/20; C08K3/40; H05K1/03
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (OHTANI PATENT OFFICE, Bridgestone Toranomon Bldg. 6F. 25-2, Toranomon 3-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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Claims: