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:
Dec. 13, 2022
Filed:
Dec. 13, 2019
Kraton Polymers Llc, Houston, TX (US);
Xavier D. D. J Muyldermans, Mont Saint Guibert, BE;
Marianne Stol, Amsterdam, NL;
Martine Dupont, Mont Saint Guibert, BE;
Koen Van Duin, Amsterdam, NL;
Kato Hiroshi, Tokyo, JP;
Neil Riddle, Almere, NL;
KRATON POLYMERS LLC, Houston, TX (US);
Abstract
A styrenic block copolymer having one or more polymer blocks A and one or more polymer blocks B is disclosed, where 'A' is a poly(vinylaromatic) block having a molecular weight of greater than 5 kg/mol. The 'B' block has a molecular weight of more than 15 kg/mol, and comprises polymerized 1,3-diene units and vinylaromatic units, wherein the polymerized vinylaromatic units represent 5-40 wt. % of the overall weight of the block “B”. The polymerized 1,3-diene units comprise more than 80 wt. % of polymerized isoprene units in which 45-80 mol % are 1,4-isoprene addition units. The blocks “A” and “B” represent from >5 to <40 wt. %, and >33 to <95 wt. %, respectively, relative to the overall weight of the block copolymer. The polymers have physical properties that make them valuable, e.g., as vibration damping materials.