US Patent 7423094 Light-diffusing polycarbonate resin composition

Patent 7423094 was granted and assigned to Sumitomo Chemical on September, 2008 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Sumitomo Chemical

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7423094

Patent Inventor Names

Tomohiro Maekawa0

Toyohiro Hamamatsu0

Date of Patent

September 9, 2008

Patent Application Number

11230666

Date Filed

September 21, 2005

Patent Primary Examiner

‌

David Buttner

Patent abstract

A composition comprising a polycarbonate resin and a silicone rubber particle having a weight average particle diameter of from about 0.5 μm to about 10 μm is provided. The composition has high impact resistance and is less colored. The sheet obtained by molding the composition is useful as a light-diffusing sheet.