公开(公告)号：US11845863B2

公开(公告)日：2023-12-19

申请号：US17241946

申请日：2021-04-27

Applicant: CARLISLE CONSTRUCTION MATERIALS, LLC

Inventor： Gary Spilman ,  Michael Christy ,  Austin Ardanowski

IPC: C08L75/06 ,  C08G18/12 ,  C08G18/75 ,  C08G18/42 ,  C09J7/35 ,  C09J175/06 ,  C09D175/06 ,  B32B5/32 ,  B32B5/18 ,  B32B15/04 ,  B32B15/20 ,  B32B15/082 ,  B32B15/09 ,  B32B27/06 ,  B32B27/30 ,  B32B27/08 ,  B32B27/36 ,  B32B7/12 ,  B32B15/18 ,  B32B27/22 ,  C08G18/08 ,  C08G18/10 ,  C08G18/34 ,  C08G18/48 ,  C08G18/66

CPC classification number: C08L75/06 ,  B32B5/18 ,  B32B5/32 ,  B32B7/12 ,  B32B15/046 ,  B32B15/082 ,  B32B15/09 ,  B32B15/18 ,  B32B15/20 ,  B32B27/065 ,  B32B27/08 ,  B32B27/22 ,  B32B27/302 ,  B32B27/304 ,  B32B27/308 ,  B32B27/36 ,  B32B27/365 ,  C08G18/0823 ,  C08G18/10 ,  C08G18/12 ,  C08G18/348 ,  C08G18/4213 ,  C08G18/4216 ,  C08G18/4238 ,  C08G18/4829 ,  C08G18/6659 ,  C08G18/755 ,  C09D175/06 ,  C09J7/35 ,  C09J175/06 ,  B32B2250/02 ,  B32B2250/22 ,  B32B2250/24 ,  B32B2307/542 ,  B32B2437/02 ,  B32B2439/70 ,  B32B2479/00 ,  B32B2605/00 ,  C08G2150/00 ,  C08G2170/00 ,  C08G2170/20 ,  C08G2170/80 ,  C08L2201/50 ,  C08L2207/20 ,  C09J2400/163 ,  C08G18/10 ,  C08G18/3228

Abstract: Aqueous polyurethane dispersions and coatings and heat-activatable adhesives made from the dispersions are disclosed. The dispersions include a polyurethane reaction product of a polyester polyol and a polyisocyanate. The polyester polyol comprises recurring units of at least one C2-C6 aliphatic diol, at least one aliphatic or cycloaliphatic C4-C10 dicarboxylic acid, and an aromatic diacid source, which can be recycled PET. The dispersion is formulated using 1 to 3 moles of an acid-functional diol per mole of polyester polyol. Dispersions for the adhesives are produced at NCO/OH molar ratios within the range of 0.90 to 0.98. The adhesives successfully bond a wide range of plastic and metal materials, often demonstrating substrate failure, even with steel. This contrasts with commercial adhesives such as EVA that exhibit only adhesive failure with the same substrates.