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:
Oct. 16, 1979
Filed:
Apr. 17, 1978
Joseph Wagensommer, Westfield, NJ (US);
Pacifico V Manalastas, Jersey City, NJ (US);
Exxon Research & Engineering Co., Florham Park, NJ (US);
Abstract
The present invention relates to improved catalyst compositions used in the formation of substantially gel-free copolymers and terpolymers of isobutylene and one or more dienes having an Mn of about less than 500,000, a mole % unsaturation of about 0.1 to about 45, and a polydispersity value of about 2.5 to about 30, wherein the mixture of isobutylene and diene monomers and a cosolvent are contacted with the catalyst composition at polymerization conditions (0.degree. C. to -100.degree. C.) wherein the improvement includes the hydrocarbon soluble catalyst composition being formed from the reaction product of a material of the formula: