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:
Apr. 21, 2025
Filed:
Aug. 08, 2017
Applicant:
E I Du Pont DE Nemours and Company, Wilmington, DE (US);
Inventor:
Christopher J. Bish, Kennett Square, PA (US);
Assignee:
DUPONT POLYMERS, INC., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 27/18 (2005.12); C08K 3/04 (2005.12); C08K 3/22 (2005.12); C08K 3/30 (2005.12); C08K 5/25 (2005.12); C08L 27/20 (2005.12); C08L 29/10 (2005.12);
U.S. Cl.
CPC ...
C08L 27/18 (2012.12); C08K 3/04 (2012.12); C08K 3/22 (2012.12); C08K 3/30 (2012.12); C08K 5/25 (2012.12); C08L 27/20 (2012.12); C08L 29/10 (2012.12); C08K 2003/2241 (2012.12); C08K 2003/3045 (2012.12); C08K 2201/005 (2012.12);
Abstract
The present invention is directed to perfluoroelastomer compounds comprising carbon black having a particle size of 100 nm or greater; a mineral filler selected from the group consisting of titanium dioxide, barium sulfate, or a combination of these; a cure site monomer; and a curing agent. These perfluoroelastomer compounds, when cured into articles, exhibit desirable compression stress relaxation properties.