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:
Sep. 17, 2002
Filed:
Aug. 21, 2000
Applicant:
Inventor:
Michael Alan Masse, Katy, TX (US);
Assignee:
Kraton Polymers U.S. LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L 5/300 ;
U.S. Cl.
CPC ...
C08L 5/300 ;
Abstract
Radial block copolymers that exhibit one phase melt behavior at a temperature below the degradation temperature of the radial block copolymer. The radial block copolymers have a plurality of arms, wherein each arm has a numerical average molecular weight of from about 5,000 to about 30,000, each arm includes a monoalkenyl aromatic hydrocarbon block and a hydrogenated conjugated diolefin block, and the monoalkenyl aromatic hydrocarbon is preferably present in an amount of from about 10 wt % to about 40 wt % of the radial block copolymer. Also disclosed is a process for preparing the one phase melt block copolymers.