Ester carbonate polyol for adhesives stable to hydrolysis

Japanese Patent JP6084633

B2

A two-component curable adhesive or sealant composition is provided. The first component may comprise a mixture of at least one polyol selected from the group comprising a polyester polyol, a polyester-polycarbonate copolymer polyol, and combinations thereof, a resin, and optionally a solvent. The second component may comprise a prepolymer obtained by reacting a polyester-polycarbonate copolymer polyol which is the reaction product of a polyester polyol which is the reaction product of one or more organic acids, and one or more glycols having a functionality of two or more and one or more polycarbonate polyols, at least one organic polyisocyanate component, and at least one chain extending agent and optionally a solvent. Alternatively, the first component may comprise a polyester-polycarbonate copolymer polyol, a resin, and optionally a solvent. The second component may comprise a polyisocyanate curative and optionally a solvent. The cured adhesive exhibits improved hydrolytic properties while maintaining excellent processability and adhesive properties.

Viviano Berthorone
Orazio Lubrotta
Harpriet Singh
Giorgi Jimenez
William H. Heath
Amanas Shin
William A. Coons

JP2014546409A

February 22, 2017

December 04, 2012

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Dow Global Technologies LLC

C09J175/06; C08G18/42; C08G63/64; C09J11/04; C09J11/06; C09J133/04; C09J161/10; C09J201/00; C09K3/10

JP8239442A
JP2011111519A
JP2006312679A
JP2003515636A
JP2009503309A
JP10110155A
JP2004514015A
JP2011093975A

US20070270567

Hiroshi Kobayashi
Norio Omori
Yasuhito Suzuki

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