The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 31, 2017

Filed:

May. 23, 2014
Applicant:

Dow Corning Toray Co., Ltd., Tokyo, JP;

Inventors:

Chiichiro Hasegawa, Fukui, JP;

Masakazu Irie, Chiba, JP;

Naoya Ishigami, Chiba, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/22 (2006.01); C08L 83/04 (2006.01);
U.S. Cl.
CPC ...
C08K 3/22 (2013.01); C08L 83/04 (2013.01); C08K 2003/2241 (2013.01); C08K 2003/2265 (2013.01); C08K 2201/014 (2013.01);
Abstract

A heat resistant silicone rubber composition containing greater than or equal to 0.1 mass % each of titanium oxide and iron oxide is disclosed. The heat resistant silicone rubber composition can form a heat resistant silicone rubber suitable for use in a high temperature environment. A method of reducing formaldehyde and/or low molecular weight organopolysiloxane generated from a cured product of a heat resistant silicone rubber composition upon heating the cured product is also disclosed. The method comprises compounding greater than or equal to 0.1 mass % each of titanium oxide and iron oxide in the heat resistant silicone rubber composition. Generally, even when the cured product is heated to a high temperature, such as a temperature greater than or equal to 300° C., generation of formaldehyde and/or low molecular weight organopolysiloxane (e.g. D4, D5, and D6) from the cured product can be reduced.


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