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:
Jan. 01, 2019
Filed:
Jun. 28, 2017
University of Massachusetts, Boston, MA (US);
Infineum International Limited, Abingdon, Oxfordshire, GB;
Philip Dimitrov, Jersey City, NJ (US);
Richard J. Severt, North Plainfield, NJ (US);
Thomas Skourlis, Basking Ridge, NJ (US);
Jeremy Weber, Brooklyn, NY (US);
Jacob Emert, Brooklyn, NY (US);
Rudolf Faust, Lexington, MA (US);
University of Massachusetts, Boston, MA (US);
Infineum International Limited, Abingdon, GB;
Abstract
A method for producing highly reactive olefin polymers wherein at least 50 mol. % of the polymer chains have terminal double bonds, from an impurity-containing isobutylene or a mixed Chydrocarbyl feedstock containing isobutylene in which the water content of the feedstock is controlled to be at least equal to the content of polar impurities in the feedstock, and less than the concentration at which the water causes a decrease in vinylidene end-group selectivity.