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US 2021/0007784 A1Published application
Foaming agents and compositions containing fluorine substituted olefins, and methods of foaming
AssigneeHoneywell International Inc.
InventorsJames M. Bowman, David J. Williams
Life of this patent
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Abstract
Various uses of fluoroalkenes, including tetrafluoropropenes, particularly (HFO-1336) in a variety of applications, including as blowing agents for integral skin foams are disclosed.
Claims7
A method of forming an integral skin thermoset foam comprising:
- providing a polymer foam formulation comprising a blowing agent composition comprising from about 5% by weight to about 95% by weight of a C4 fluoroalkene according to Formula I:
- XCFzR3-z (I)
- where X is a C3 unsaturated, substituted radical having at least one fluorine substituent and z is 3;
- and
- foaming said polymer foam formulation to form an integral skin foam.
2 more elements
A process of foaming a polyurethane integral skin foam comprising:
- (a) mixing polymer foam components capable of forming an integral skin foam with a foam blowing agent comprising a C4 fluoroalkene according to Formula I:
- XCFzR3-z (I)
- where X is a C3 unsaturated, substituted radical having at least one fluorine substituent and z is 3;
- and
- (b) forming an integral skin polyurethane foam from said polymer foam components.
2 more elements
Dependencies are inferred from the claim text.