logo

For the Inventor, By the Inventor

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 9181461 B1

PDFFull Text
Date of Patent:
Nov. 10, 2015

Filed:

Aug. 17, 2006

Hot melt sealant and foam-in-place gasketing material

Applicant:

Baoyu Wang, Waukesha, WI (US);

Inventor:

Baoyu Wang, Waukesha, WI (US);

Assignee:

Bostik, Inc, Wauwatosa, WI (US);

Attorneys:

Wozny Law, LLC

Thomas M. Wozny

Primary Examiner:

Peter D Mulcahy

Int. Cl.
CPC ...
C08L 23/00 (2006.01); C09J 123/14 (2006.01); B32B 7/12 (2006.01); B32B 25/14 (2006.01); C09J 123/04 (2006.01); C09J 123/08 (2006.01); C09J 123/10 (2006.01); C09J 123/16 (2006.01); C09J 153/00 (2006.01); C09J 153/02 (2006.01); C08L 23/14 (2006.01);
U.S. Cl.
CPC ...
C09J 123/142 (2013.01); B32B 7/12 (2013.01); B32B 25/14 (2013.01); C09J 123/04 (2013.01); C09J 123/0853 (2013.01); C09J 123/0869 (2013.01); C09J 123/10 (2013.01); C09J 123/16 (2013.01); C09J 153/005 (2013.01); C09J 153/02 (2013.01); C08L 23/14 (2013.01); Y10T 428/31551 (2015.04); Y10T 428/31786 (2015.04); Y10T 428/31931 (2015.04); Y10T 428/31938 (2015.04);
Abstract

A hot melt sealant and foam-in-place gasket composition based on a rubber such as ethylene propylene rubber (EPR) and/or ethylene propylene diene rubber (EPDM) and at least one semicrystalline olefinic polymer. The hot melt composition includes the rubber or a blend of rubbers in an amount of 5% to 50% by weight, at least one semicrystalline olefinic polymer in an amount of 5% to 40% by weight, at least one amorphous poly-α-olefin (APAO) polymer in an amount of 0% to 70% by weight, a compatible tackifier in an amount of 0% to 50% by weight, and a plasticizer in an amount of at least 30% by weight. The composition is particularly useful for foamed gasket applications as a replacement for pressure sensitive adhesive (PSA) coated foam tape.

Find Patent Forward Citations

Loading…