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:
Mar. 23, 2004

Filed:

Jul. 11, 2001
Applicant:
Inventors:

Kevin A. McCullough, N. Kingstown, RI (US);

James D. Miller, Marietta, GA (US);

E. Mikhail Sagal, Warwick, RI (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/38 ; C08K 3/04 ; C08K 3/10 ;
U.S. Cl.
CPC ...
C08K 3/38 ; C08K 3/04 ; C08K 3/10 ;
Abstract

A highly thermally conductive and high strength net-shape moldable molding composition, with a thermal conductivity above 4 W/m° K and a strength of at least 15 ksi includes a polymer base matrix of, by volume, between 30 and 70 percent. A first highly thermally conductive filler of high modulus PITCH-based carbon, by volume, between 15 and 47 percent is provided in the composition that has a relatively high aspect ratio of at least 10:1. Also in the composition mixture is a second high strength filler of PAN-based carbon, by volume, between 10 and 35 percent that has a relatively high aspect ratio of 10:1 or more. Optionally, a third filler material of thermally conductive material with a relatively low aspect ratio of 5:1 or less may be included in the composition, by volume less than 10 percent, to improve the thermal conductivity and strength of the composition.


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