SILICONE RUBBER COMPOSITION AND SILICONE RUBBER MOLDED ARTICLE

Japanese Patent JP2014105309

A

To provide a silicone rubber composition giving a low surface frictional coefficient of a silicone rubber after cured, in particular, a millable silicone rubber composition (that is, having high viscosity and normally in a non-liquid state without self-fluidity at room temperature (25°C)), and a silicone rubber molded article and a laminate molded article using the composition.

The silicone rubber composition comprises: (A) 100 pts.mass of organopolysiloxane expressed by an average composition formula (I):R¹_aSiO_(4-a)/2 (where R¹ represents identical or different species of substituted or unsubstituted monovalent hydrocarbon groups and a represents a positive number of 1.95 to 2.05), and having at least two alkenyl groups in one molecule; (B) 5 to 100 pts.mass of reinforcing silica having a specific surface area of 50 m²/g or more measured by a BET adsorption method; (C) 1 to 500 pts.mass of calcined talc; and (D) an effective amount of a curing agent. The silicone rubber composition gives a silicone rubber cured product having a dynamic frictional coefficient of 0.5 or less after cured.

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YOSHIDA MASAYUKI
KIMURA TSUNEO
IGARASHI MINORU

JP2012261114A

June 09, 2014

November 29, 2012

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SHINETSU CHEMICAL CO

C08L83/07; B32B15/06; B32B25/20; C08K3/36; C08L83/05; C09K3/10

JP2010083946A	2010-04-15
JP2004231865A	2004-08-19
JP2008156575A	2008-07-10
JP2011201951A	2011-10-13

Takashi Kojima
Saori Shigematsu
Katsunari Kobayashi
Takeshi Ishikawa

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