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. 05, 2014
Filed:
Sep. 29, 2011
Applicants:
Robert Ray Burch, Exton, PA (US);
Jesus G Moralez, Wilmington, DE (US);
Susan H Tilford, Ewing, NJ (US);
Inventors:
Robert Ray Burch, Exton, PA (US);
Jesus G Moralez, Wilmington, DE (US);
Susan H Tilford, Ewing, NJ (US);
Assignee:
E I du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 22/00 (2006.01); B29D 23/00 (2006.01); B32B 1/08 (2006.01); B32B 27/10 (2006.01); C08K 3/22 (2006.01); C08L 79/08 (2006.01); C08K 3/00 (2006.01);
U.S. Cl.
CPC ...
B29D 22/00 (2013.01); B29D 23/00 (2013.01); B32B 1/08 (2013.01); B32B 27/10 (2013.01); C08K 3/0041 (2013.01); C08K 3/22 (2013.01); C08L 79/08 (2013.01);
Abstract
Polyimide resin compositions that contain an aromatic polyimide, graphite, and acicular titanium dioxide are found to exhibit high thermal oxidative stability. Such compositions are especially useful in molded articles that are exposed to high temperatures, such as bushings, bearings, and seal rings that are used in aerospace, transportation, and materials handling applications.