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. 22, 2008
Filed:
Aug. 19, 2005
Applicant:
Gabor Kaszas, London, CA;
Inventor:
Gabor Kaszas, London, CA;
Assignee:
Lanxess Inc., Sarnia, Ontario, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 8/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A halogenated butyl polymer having improved properties, the butyl polymer derived from a monomer mixture comprising a Cto Cmonoolefin monomer, a Cto Cmultiolefin monomer and a styrenic monomer with a catalyst system to produce the butyl polymer. The improved properties include faster cure, higher maximum torque, higher delta torque, relatively stable modulus over time, improved hot air aging properties and improved aged flexure properties. These improved properties are believed to result from direct interaction between the styrenic moieties in the polymer backbone with a crosslinking agent added to vulcanize the halogenated butyl rubber.