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:
Jul. 07, 1998
Filed:
Mar. 11, 1993
Applicant:
Inventors:
James Lupton Hedrick, Oakland, CA (US);
Donald Clifford Hofer, San Martin, CA (US);
Jeffrey William Labadie, Sunnyvale, CA (US);
Robert Bruce Prime, San Jose, CA (US);
Thomas Paul Russell, San Jose, CA (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521 77 ; 521134 ; 521184 ; 521189 ;
Abstract
The present invention relates to an insulating foamed polymer having a pore size less than about 1000 .ANG. made from a copolymer comprising a matrix polymer and a thermally decomposable polymer by heating the copolymer above the decomposition temperature of the decomposable polymer.