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US 12,098,240 B2Granted
Foam compositions
AssigneeHolcim Technology Ltd
InventorsDavid L. Trumbo, Nick Krogman, Daniel S. Nelson
Life of this patent
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Abstract
Foam compositions are provided. The compositions are prepared from multi-functional acetoacetate esters and multi-functional amines or acrylates. The foam compositions can include one or more additives. The foam compositions can be used for home and commercial insulation, air sealing, sound proofing, structural improvement, and exterior roofing, among other applications. The foam compositions provide advantages of being isocyanate free and offer reduced exposure to isocyanate.
Claims8
A composition comprising:
- the reaction product of a multi-functional acetoacetate ester and a multi-functional amine, where the reaction product is formed by
- (i) providing a multi-functional acetoacetate ester in a first container;
- (ii) providing a multi-functional amine in a second container coupled;
- (iii) electrically or hydraulically pumping the multi-functional acetoacetate ester from the first container into a mix chamber at a pressure of from 500 to 2000 psi;
- (iv) pumping the multi-functional amine from the second container into the mix chamber at a pressure of from 500 to 2000 psi;
- and
- (v) allowing the multi-functional amine acetoacetate ester and the multi-functional amine to form a reaction product within the mix chamber, where the reaction product is disposed on a roof surface.
4 more elements
Dependencies are inferred from the claim text.