公开(公告)号：USRE46761E1

公开(公告)日：2018-03-27

申请号：US14689290

申请日：2015-04-17

申请人： 3M INNOVATIVE PROPERTIES COMPANY

发明人： Charlie Chia-Tie Ho ,  Clarence Fullbright, Jr.

IPC分类号： B32B7/12 ,  C08G18/42 ,  C08G18/00 ,  C09D175/06 ,  B05C17/005 ,  B65D83/00 ,  B05C17/015

CPC分类号： B32B27/40 ,  B32B7/12 ,  C08G18/32 ,  C08G18/4202 ,  C09D175/06 ,  Y10T428/31551

摘要： The present invention provides a flexible two component polyurethane and method for producing the polyurethane. The cured polyurethane is flexible, durable and weather resistant. The polyurethane is suitable for use as a protective layer on various substrates. The flexible polyurethane is the reaction product of solvent-free reaction components. The first component includes one or more polyols, optionally, one or more diols, and a catalyst. The second component includes a primary aliphatic isocyante crosslinker.