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:
Mar. 12, 2019
Filed:
Jun. 08, 2016
Applicant:
Henkel Ag & Co. Kgaa, Duesseldorf, DE;
Inventors:
Assignee:
Henkel AG & Co. KGaA, Duesseldorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/10 (2006.01); C08G 18/42 (2006.01); C08G 18/75 (2006.01); C08G 18/80 (2006.01); C09J 175/06 (2006.01);
U.S. Cl.
CPC ...
C09J 175/06 (2013.01); C08G 18/10 (2013.01); C08G 18/4211 (2013.01); C08G 18/4216 (2013.01); C08G 18/755 (2013.01); C08G 18/8025 (2013.01); C08G 18/8029 (2013.01);
Abstract
Disclosed is an adhesive for food packaging films, comprising a urethane resin obtainable by mixing: (A) a polyesterpolyurethane polyol; (B) a polyester polyol; and (C) an isocyanate component. The polyesterpolyurethane polyol (A) is obtainable by chain extension of (a1) a polyester polyol with (a2) an isocyanate compound. The equivalent ratio (NCO/OH) of the isocyanate group of the isocyanate compound (a2) to the hydroxyl group of the polyester polyol (a1) is 0.6 to 0.85. The polyester polyol (B) has a glass transition temperature of −20 to 10° C. Also disclosed is a food packaging film comprising the adhesive.