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:
Mar. 19, 2002
Filed:
Nov. 22, 1999
Applicant:
Inventors:
James P. Godschalx, Midland, MI (US);
Kenneth J. Bruza, Alma, MI (US);
Qing Shan J. Niu, Midland, MI (US);
Clark H. Cummins, Midland, MI (US);
Paul H. Townsend, III, Midland, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 3/800 ;
U.S. Cl.
CPC ...
C08F 3/800 ;
Abstract
This invention is a polyarylene composition in which resin does not undergo a significant drop in modulus at temperatures above 300° C. during cure. This feature enables one to form porous films by avoiding pore collapse and/or using a wider variety of poragen materials.