Styrene based resin composition, formed particle thereof, and optical element

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United States of America Patent

PATENT NO 9403970
APP PUB NO 20140249258A1
SERIAL NO

14349646

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Abstract

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A styrene based resin composition having a low linear thermal expansion coefficient and high formability, a formed article thereof, and an optical element made from the formed article are provided. The formed article is produced by forming a styrene based resin composition containing a styrene based resin and silica particles, wherein the number average particle diameter of primary particles of the silica particles is 0.5 nm or more and 40 nm or less, and the content of the silica particles is 40 percent by volume or more and 75 percent by volume or less relative to a total of the styrene based resin and the silica particles.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Oishi, Emi Kawasaki, JP 6 1

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