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:
Feb. 21, 2006
Filed:
Mar. 24, 2003
Dale L. Handlin, Jr., Houston, TX (US);
Carl L. Willis, Houston, TX (US);
Lie K. Djiau, Houston, TX (US);
Hector Hernandez, Houston, TX (US);
Robert Dossett, Jr., Houston, TX (US);
Dale L. Handlin, Jr., Houston, TX (US);
Carl L. Willis, Houston, TX (US);
Lie K. Djiau, Houston, TX (US);
Hector Hernandez, Houston, TX (US);
Robert Dossett, Jr., Houston, TX (US);
KRATON Polymers U.S. LLC, Houston, TX (US);
Abstract
Disclosed is a novel tetrablock copolymer having the general configuration of A1-B1-A2-B2, where the A1 and A2 blocks are mono alkenyl arene and the B1 and B2 blocks are blocks of hydrogenated butadiene, having a 1,2-vinyl content of between 25% and 60%. The blocks have well defined molecular weight ranges, resulting in a polymer having a unique set of property advantages. Also disclosed are elastomeric compositions containing the linear hydrogenated block copolymer, a styrene polymer, an ethylene polymer and a tackifying resin. These elastomeric compositions have particular utility in injection molded parts and in extruded parts such as extruded films and fibers.