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:
Dec. 16, 2008
Filed:
Oct. 09, 2006
Mohamed Esseghir, Monroe Township, NJ (US);
Bharat I. Chaudhary, Princeton, NJ (US);
Jeffrey M. Cogen, Flemington, NJ (US);
John Klier, Midland, MI (US);
Jinder Jow, Singapore, SG;
Robert F. Eaton, Belle Mead, NJ (US);
Suzanne M. Guerra, Lake Jackson, TX (US);
Mohamed Esseghir, Monroe Township, NJ (US);
Bharat I. Chaudhary, Princeton, NJ (US);
Jeffrey M. Cogen, Flemington, NJ (US);
John Klier, Midland, MI (US);
Jinder Jow, Singapore, SG;
Robert F. Eaton, Belle Mead, NJ (US);
Suzanne M. Guerra, Lake Jackson, TX (US);
Dow Global Technologies Inc., Midland, MI (US);
Abstract
Scorch is inhibited during the free-radical crosslinking of a crosslinkable polymer, e.g., an EPDM, by incorporating into the polymer before melt processing and crosslinking a scorch inhibiting amount of a derivative, preferably an ether, ester or urethane derivative, of a TEMPO compound, e.g., 4-hydroxy-tetrahydrocarbylpiperidin-1-oxyl. The scorch inhibitors of this invention perform as well, if not better, than their 4-hydroxy-tetrahydrocarbylpiperidin-1-oxyl counterparts in similar polymer compositions and under similar conditions in terms of scorch inhibition and ultimate degree of crosslinking, but exhibit less volatility and less migration within the polymer composition.