Ricky Lynn Nelson

US Patent:

20200277517, Sep 3, 2020

Filed:

Sep 18, 2018

Appl. No.:

16/647655

Inventors:

- St. Paul 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

International Classification:

C09J 7/29
C08J 5/18
C08G 18/42
C08G 18/32
C08G 18/66
C08G 18/75
C09J 7/25
C09J 7/38
B32B 27/06
B32B 27/40
B29C 48/00
B29C 48/08

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.