公开(公告)号：US20170218226A1

公开(公告)日：2017-08-03

申请号：US15328530

申请日：2015-07-24

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Charlie C. Ho ,  Robert D. HAMANN ,  Jeremy P. Gundale ,  Vijay Rajamani ,  Ken Egashira ,  Chia Hui Lin ,  Hsi Shou KUO

IPC: C09D175/06 ,  C08G18/42 ,  C09J7/02 ,  B29C51/14 ,  B29C47/00 ,  B32B7/12 ,  B32B27/40 ,  B32B27/08 ,  B32B27/30 ,  C08G18/75 ,  B29C51/10

CPC classification number: C09D175/06 ,  B29C48/022 ,  B29C48/08 ,  B29C51/10 ,  B29C51/14 ,  B29K2075/00 ,  B29K2995/007 ,  B29K2995/0077 ,  B29L2009/00 ,  B29L2031/3005 ,  B29L2031/722 ,  B32B7/12 ,  B32B27/08 ,  B32B27/304 ,  B32B27/308 ,  B32B27/36 ,  B32B27/40 ,  B32B2250/24 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2307/30 ,  B32B2307/50 ,  B32B2307/536 ,  B32B2307/54 ,  B32B2307/546 ,  B32B2307/554 ,  B32B2307/558 ,  B32B2307/5825 ,  B32B2307/712 ,  B32B2307/714 ,  B32B2451/00 ,  B32B2605/00 ,  C08G18/4238 ,  C08G18/4277 ,  C08G18/664 ,  C08G18/758 ,  C09J7/25 ,  C09J2201/606 ,  C09J2475/006

Abstract: Disclosed herein are improved thermoplastic polyurethane compositions, articles, and related methods. These compositions include aliphatic thermoplastic polyurethanes having a hard segment content ranging from 57 percent to 80 percent by weight. The hard coat compositions have a Shore D hardness of at least 70 and can display an Elongation at Break test result at 25 degrees Celsius of at least 150 percent. These materials, when hardened, can serve decorative and/or protective functions while displaying both a high degree of elongation at moderate temperatures and high hardness.

公开(公告)号：US20200277517A1

公开(公告)日：2020-09-03

申请号：US16647655

申请日：2018-09-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Charlie Chia-Tie HO ,  Yongshang LU ,  John J. JAROS ,  Jay M. JENNEN ,  Ryan M. BRAUN ,  Sean P. ADDISON ,  Trevor A. LARSON ,  Ricky L. NELSON ,  Robert D. HAMANN

IPC: C09J7/29 ,  C08J5/18 ,  C08G18/42 ,  C08G18/32 ,  C08G18/66 ,  C08G18/75 ,  C09J7/25 ,  C09J7/38 ,  B32B27/06 ,  B32B27/40 ,  B29C48/00 ,  B29C48/08

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.