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. 12, 2011
Filed:
Jan. 11, 2008
Robert C. Bening, Katy, TX (US);
Dale Lee Handlin, Jr., Houston, TX (US);
Scott Russell Trenor, Houston, TX (US);
Carl Lesley Willis, Houston, TX (US);
Robert C. Bening, Katy, TX (US);
Dale Lee Handlin, Jr., Houston, TX (US);
Scott Russell Trenor, Houston, TX (US);
Carl Lesley Willis, Houston, TX (US);
Kraton Polymers U.S. LLC, Houston, TX (US);
Abstract
The present invention is a, solid block copolymer comprising at least two polymer end blocks A and at least one polymer interior block B wherein each A block is a polymer block resistant to lithiation and each B block is a polymer block susceptible to lithiation, and wherein said A and B blocks do not contain any significant levels of olefinic unsaturation. After lithiation, the lithiated polymer is reacted with at least one graftable functional molecule selected from the group consisting of an electrophilic graftable molecule containing a functional group and an electrophile. Preferred are carbon monoxide and ethylene oxide. Also claimed are processes for making such block copolymers, and the various end uses and applications for such block copolymers.