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. 20, 2015

Filed:

Mar. 08, 2013
Applicant:

Shin-etsu Chemical Co., Ltd., Tokyo, JP;

Inventors:

Masahiko Minemura, Annaka, JP;

Mitsuhiro Takarada, Takasaki, JP;

Masaki Tanaka, Annaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 77/42 (2006.01); C08G 77/448 (2006.01); C08L 69/00 (2006.01); C08L 83/10 (2006.01); C08G 64/18 (2006.01); C08K 3/00 (2006.01); C09K 21/06 (2006.01); C09K 21/08 (2006.01); C09K 21/12 (2006.01);
U.S. Cl.
CPC ...
C08G 77/42 (2013.01); C08G 64/186 (2013.01); C08G 77/448 (2013.01); C08L 69/00 (2013.01); C08L 83/10 (2013.01); C08K 3/0058 (2013.01); C09K 21/06 (2013.01); C09K 21/08 (2013.01); C09K 21/12 (2013.01);
Abstract

There is disclosed a polycarbonate and polysiloxane block copolymer includes 1 to 50 percent by mass of a siloxane portion derived from a polysiloxane block represented by the following formula (I) and 50 to 99 percent by mass of a carbonate portion derived from a polycarbonate block represented by the following formula (II). There can be provided a novel polycarbonate and polysiloxane block copolymer capable of readily imparting excellent flame retardance, and a flame retardant resin composition.


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