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.
Patent No.:
Date of Patent:
Aug. 11, 1992
Filed:
May. 24, 1991
Applicant:
Inventors:
Jacob Block, Rockville, MD (US);
John W Lau, Gaithersburg, MD (US);
Assignee:
W. R. Grace & Co.-Conn., New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ; C08K / ; C08K / ; C08L / ;
U.S. Cl.
CPC ...
524430 ;
Abstract
Alpha alumina platelets are used as thermally conductive, electrically insulating filler in thermally conductive, electrically insulating elastomers. The platelets provide improved thermal conductivity in comparison to conventional alumina fillers. The platelets preferably average less than one micron thickness with an average aspect ratio of at least about 5:1.