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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 9469791 B1

PDFFull Text
Date of Patent:
Oct. 18, 2016

Filed:

Apr. 27, 2012

Polyolefin based hot melt adhesive composition

Applicants:

Keith C. Knutson, St. Paul, MN (US);

Thomas H. Quinn, St. Paul, MN (US);

Inventors:

Keith C. Knutson, St. Paul, MN (US);

Thomas H. Quinn, St. Paul, MN (US);

William L. Bunnelle, Ham Lake, MN (US);

Assignee:

ADHERENT LABORATORIES, INC., St. Paul, MN (US);

Attorney:

Seager, Tufte & Wickhem, LLP

Primary Examiner:

Nathan M Nutter

Int. Cl.
CPC ...
A61F 13/15 (2006.01); B32B 27/00 (2006.01); C08F 8/00 (2006.01); C08L 23/00 (2006.01); C09J 123/14 (2006.01); C08K 5/134 (2006.01); C08K 5/13 (2006.01);
U.S. Cl.
CPC ...
C09J 123/14 (2013.01); C08K 5/134 (2013.01); C09J 123/142 (2013.01); C08K 5/13 (2013.01); C08L 2205/025 (2013.01); Y10T 428/1334 (2015.01); Y10T 428/1352 (2015.01); Y10T 428/249985 (2015.04); Y10T 428/31645 (2015.04); Y10T 428/31667 (2015.04); Y10T 428/31692 (2015.04); Y10T 428/31801 (2015.04); Y10T 428/31804 (2015.04); Y10T 428/31902 (2015.04); Y10T 428/31913 (2015.04); Y10T 428/31938 (2015.04);
Abstract

A hot melt adhesive composition includes at least a semi-crystalline copolymer of propylene and a polyethylene wax having a Brookfield viscosity of about 20 cP to 500 cP at 140° C., a density of about 0.95 g/cmto 0.99 g/cmbetween 23° C. and 25° C., and a Mettler drop point of about 110° C. to 135° C., wherein the composition is characterized by a effective set time of about 0.1 second to 5 seconds. Articles including the composition and methods of making articles including the composition are described.

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