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:
Dec. 17, 2024
Filed:
Sep. 18, 2018
3m Innovative Properties Company, St. Paul, MN (US);
Charlie Chia-Tie Ho, Woodbury, MN (US);
Yongshang Lu, Woodbury, MN (US);
John J. Jaros, Lake Elmo, MN (US);
Jay M. Jennen, Forest Lake, MN (US);
Ryan M. Braun, St. Paul, MN (US);
Sean P. Addison, Athens, AL (US);
Trevor A. Larson, Madison, AL (US);
Ricky L. Nelson, Elkmont, AL (US);
Robert D. Hamann, Eagan, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Various embodiments disclosed relate to a surfacing film. The surfacing film includes a base layer. The base layer includes a thermoplastic polyurethane film comprising a reaction product of a reaction mixture of a diisocyanate, a polyester polyol having a melting temperature of at least about 30° C.; and a diol chain extender. There are many reasons to use the surfacing film including easier and more cost effective manufacturing of the surfacing film by directly extruding the base layer by mixing the reaction mixture in an extruder. Another reason to use the surfacing film is that the film has improved resistance to discoloration. Another reason to use the film is that the film shows good toughness.