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US 4,309,526 AGranted
Unsaturated curable poly(alkylene)ether polyol-based resins having improved properties
AssigneeLoctite Corporation
InventorLouis J. Baccei
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Abstract
A polymerizable composition, suitable for use as an adhesive, sealant or coating, comprising a urethane-acrylate-capped prepolymer based on a polymeric or copolymeric alkylene ether polyol. The composition provides improved properties, particularly cure-through-gap, impact and cryogenic strength properties. A process for preparing the composition and a process for using it are also disclosed.
Claims15
A curable, polymerizable adhesive and sealant composition comprising:
- I. the reaction product of
- (a) at least a molar equivalent of a hydroxyalkyl acrylate, a hydroxylalkyl methacrylate an aminoalkyl acrylate or an aminoalkyl methacrylate with
- (b) the reaction product of
- (1) a poly(alkylene) ether polyol with
- (2) at least a molar equivalent of the -NCO capped reaction product of:
- (i) an aromatic or cycloaliphatic polyisocyanate with
- (ii) an aromatic or cycloaliphatic polyol or polyamine and,
- II. a free radical initiator.
5 more elements
Dependencies are inferred from the claim text.