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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.:

US 9359523 B1

PDFFull Text
Date of Patent:
Jun. 07, 2016

Filed:

Aug. 27, 2014

High flow, hydrogenated styrene-butadiene-styrene block copolymers and applications

Applicant:

Kraton Polymers Us Llc, Houston, TX (US);

Inventors:

Donn Anthony Dubois, Houston, TX (US);

John E. Flood, Cypress, TX (US);

Assignee:

Kraton Polymers U.S. LLC, Houston, TX (US);

Attorneys:

Clements Bernard PLLC

Leslie Streeter

Primary Examiner:

Jeffrey Mullis

Int. Cl.
CPC ...
C09J 153/02 (2006.01); C09D 153/02 (2006.01); C08K 3/22 (2006.01); C08K 3/26 (2006.01); C08K 7/14 (2006.01); D04H 1/4209 (2012.01); D04H 3/002 (2012.01); C08F 293/00 (2006.01); C08L 23/20 (2006.01); C08L 53/02 (2006.01); D04H 13/00 (2006.01); C08K 3/20 (2006.01); C08K 5/07 (2006.01); C08K 5/101 (2006.01);
U.S. Cl.
CPC ...
C09D 153/025 (2013.01); C08F 293/00 (2013.01); C08K 3/20 (2013.01); C08K 3/22 (2013.01); C08K 3/26 (2013.01); C08K 7/14 (2013.01); C08L 23/20 (2013.01); C08L 53/025 (2013.01); C09D 153/02 (2013.01); C09J 153/02 (2013.01); C09J 153/025 (2013.01); D04H 1/4209 (2013.01); D04H 3/002 (2013.01); D04H 13/00 (2013.01); C08K 5/07 (2013.01); C08K 5/101 (2013.01); C08K 2003/2241 (2013.01); C08K 2003/265 (2013.01); C08L 2205/02 (2013.01); C08L 2205/03 (2013.01); Y10T 442/10 (2015.04); Y10T 442/56 (2015.04); Y10T 442/60 (2015.04); Y10T 442/601 (2015.04);
Abstract

The invention relates to unique applications for the novel high melt flow, low viscosity, selectively hydrogenated styrene-butadiene-styrene (hSBS) or selectively hydrogenated controlled distribution styrene-butadiene/styrene-styrene (hSBSS) block copolymers, wherein the melt flow rate of said block copolymer is at least 100 g/10 min at 230° C. under 2.16 kg mass according to ASTM D1238. These block copolymers are novel and have the highest melt flow rate of any styrenic block copolymer also possessing high strength and elasticity. It has applications that prior to the present invention were not normally possible due to the normal low melt flow rate of styrenic block copolymers. The present invention also encompasses various fields of use such as a fiberglass hSBS or hSBSS reinforced mat, low viscosity hSBS or hSBSS coatings for industrial uses, hot melt adhesives prepared from hSBS or hSBSS blended with polyalpha-olefins, and elastic film, fiber, and nonwoven constructions using hSBS or hSBSS.

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