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1. (WO2018222272) TWO-COMPONENT SOLVENTLESS ADHESIVE COMPOSITIONS

Pub. No.:    WO/2018/222272    International Application No.:    PCT/US2018/025982
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Thu Apr 05 01:59:59 CEST 2018
IPC: C08G 18/48
C08G 18/50
C08G 18/76
C08G 18/10
C08G 18/12
C08G 18/32
C08G 18/38
C09J 175/08
B32B 7/12
Applicants: DOW GLOBAL TECHNOLOGIES LLC
ROHM AND HAAS COMPANY
Inventors: LI, Wenwen
GUO, Yinzhong
CHEN, Mai
Title: TWO-COMPONENT SOLVENTLESS ADHESIVE COMPOSITIONS
Abstract:
Two-component solventless polyurethane adhesive compositions comprising an isocyanate component and an isocyanate-reactive are disclosed, the compositions comprising an isocyanate component comprising an isocyanate-terminated prepolymer, and an isocyanate-reactive component comprising a hydroxy-terminated polyurethane resin, a polyether polyol, a phosphate ester adhesion promoter, and, optionally, a bio-based polyol. Methods for forming laminate structures are also disclosed, the methods comprising forming an adhesive composition by mixing an isocyanate adhesive component comprising an isocyanate-terminated prepolymer and an isocyanate-reactive adhesive component comprising a hydroxy-terminated polyurethane resin, a polyether polyol, a phosphate ester adhesion promoter, and optionally, a bio-based polyol, applying the adhesive composition to a surface of a first substrate, and bringing a surface of a second substrate into contact with the adhesive composition on the surface of the first substrate, thereby forming the laminate structure. Laminate structures are also disclosed.