US Patent 7470471 Resin composition, prepreg and laminate using the composition

Patent 7470471 was granted and assigned to Mitsui Chemicals on December, 2008 by the United States Patent and Trademark Office.

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Patent Inventor Names

Hitoshi Sakuraba0

Kenji Shima0

Kousuke Hirota0

Koutarou Asahina0

Takashi Iiyama0

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Patent abstract

The present invention is to provide a resin composition having sufficient rigidity and superior in the workability as well even if the thickness is as thin as 0.2 mm or less, and a prepreg and a laminate obtained from the resin composition. The resin composition comprises resin component containing a (A) compound having a maleimide group and (B) calcinated talc, wherein the calcinated talc is contained not less than 30 weight parts and not more than 250 weight parts to 100 weight parts of the total amount of the resin component containing a (A) compound having a maleimide group.

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https://pdfpiw.uspto.gov/.piw?Docid=074704710

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