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. 08, 2009
Filed:
Aug. 17, 2006
John Scott Parent, Kingston, CA;
Sergio A. Guillén-castellanos, Calgary, CA;
Ralph Allen Whitney, Kingston, CA;
Rui Resendes, Corunna, CA;
John Scott Parent, Kingston, CA;
Sergio A. Guillén-Castellanos, Calgary, CA;
Ralph Allen Whitney, Kingston, CA;
Rui Resendes, Corunna, CA;
LANXESS Inc., Sarnia, Ontario, CA;
Queen's University at Kingston, Kingston, Ontario, CA;
Abstract
Preparation of butyl rubber based graft co-polymers from halobutyl elastomers using phase transfer catalysts in the presence of a solution of an alkali metal salt of an oxygen or sulfur nucleophile that is bound to a polymeric substrate. Graft co-polymers can be produced of a butyl polymer (isobutene-co-isoprene) and polymeric substrates such as polyethylene, polypropylene, polystyrene, polybutadiene, polysilanes, polysiloxanes, polyethylene glycol, polyethylene oxide, polyphosphazenes, polyferrocenes or their hybrids.