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1. (WO2018102333) ISOCYANATE-BLOCKED AMIDINES AS LATENT POLYURETHANE CATALYSTS

Pub. No.:    WO/2018/102333    International Application No.:    PCT/US2017/063577
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Thu Nov 30 00:59:59 CET 2017
IPC: C08G 18/48
C08G 18/50
C08G 18/76
C08G 18/10
C08G 18/20
C08G 18/32
C09J 175/00
C07D 487/20
Applicants: DOW GLOBAL TECHNOLOGIES LLC
Inventors: DE VRIES, Timothy
JIALANELLA, Gary, L.
LUTZ, Andreas
SCHMATLOCH, Stefan
Title: ISOCYANATE-BLOCKED AMIDINES AS LATENT POLYURETHANE CATALYSTS
Abstract:
Disclosed are compositions including an adduct that is an isocyanate-blocked amidine having a multi-cyclic structure having hydrocarbon based substituents. The composition is useful as a latent catalyst for a two-component polyurethane adhesive. Further disclosed are compositions useful as a two-component polyurethane adhesive, including a polyol component and an isocyanate component and one or more isocyanate-blocked amidines having multiple non-aromatic rings and having hydrocarbyl groups off the residue of the isocyanate nitrogen atoms contained in the cyclic ring that is formed. The one or more isocyanate-blocked amidines may be located in the polyol component or the isocyanate component. Further disclosed are methods of forming the adduct and methods of bonding structures together using the latent two-component polyurethane adhesives.