SILICA-CONTAINING SILICONE RESIN COMPOSITION AND ITS MOLDED PRODUCT

WIPO Patent Application WO/2006/035646

A1

This invention provides a silica-containing silicone resin composition which can impart high heat resistance, high transparency, and high dimensional stability and is suitable, for example, for optical applications such as lenses, optical disks, optical fibers, and flat panel display substrates, and window materials for automobiles. This silica-containing silicone resin composition is produced by incorporating 1 to 70% by weight of silica fine particles into a silicone resin composition prepared by mixing a silicone resin, which is represented by [RSiO_3/2]_n wherein R represents an (meth)acryloyl-containing organic functional group; and n is 8, 10 or 12, and is composed mainly of polyorganosilsesquioxane having a basket structure in its structural units, and an unsaturated compound, which contains in its molecule at least one unsaturated group represented by -R³-CR⁴=CH₂ or -CR⁴=CH₂ wherein R³ represents an alkylene group, an alkylidene group, or group -OCO-; and R⁴ represents hydrogen or an alkyl group, and is radically copolymerizable with the silicone resin at a weight ratio of 1 : 99 to 99 : 1.

SAITO TAKASHI (JP)
ISOZAKI MASAYOSHI (JP)
ANDO HIDEKI (JP)
YAMASAKI AKIKO (JP)

PCT/JP2005/017368

April 06, 2006

September 21, 2005

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NIPPON STEEL CHEMICAL CO (JP)
SAITO TAKASHI (JP)
ISOZAKI MASAYOSHI (JP)
ANDO HIDEKI (JP)
YAMASAKI AKIKO (JP)

C08F230/08; C08F2/44; C08K3/36; C08L43/04; C07F7/21

WO2002083764A1

2002-10-24

JP2001046122A	2001-02-20
JP2004143449A	2004-05-20
JP2004314468A	2004-11-11
JPS581756A	1983-01-07

Naruse, Katsuo (TKK Nishishinbashi Bldg. 11-5, Nishi-shinbashi 2-chom, Minato-ku Tokyo 03, JP)

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