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:
Apr. 30, 2013
Filed:
May. 26, 2009
Jean M. Tancrede, Katy, TX (US);
Christopher L. Curry, Dayton, TX (US);
David R. Johnsrud, Humble, TX (US);
George Rodriguez, Houston, TX (US);
Fran A. Shipley, Crosby, TX (US);
Jean M. Tancrede, Katy, TX (US);
Christopher L. Curry, Dayton, TX (US);
David R. Johnsrud, Humble, TX (US);
George Rodriguez, Houston, TX (US);
Fran A. Shipley, Crosby, TX (US);
Exxonmobil Chemical Patents Inc., Houston, TX (US);
Abstract
Provided are adhesive compositions composed of a polyolefin composition comprising at least about 50 wt. % polypropylene and at least one wax. The polymer compositions have a Dot T-Peel of about 1 Newton or more, a branching index (g') of 0.95 or less measured at the Mz of the polymer, a molecular weight of 100,000 or less, and the adhesive compositions has a fast set time. The packaging industry desires adhesive compositions having a fast set time, such as those setting in less than five seconds from a molten state at conventional packaging operating temperatures to a solid or quasi solid having favorable Dot T-Peel, set time, and or fiber tear adhesion properties. Polymer based adhesives performing within this window are a favorable alternative to conventional formulated adhesives. The provided adhesive compositions exhibit a favorable balance of properties such as high adhesive strength, wide temperature operating window, and fast set time.