Compositions and methods comprising vinylidene fluoride

Patent metadata

Field	Value
Publication number	US-2020002500-A1
Application number	US-201916570209-A
Country	US
Kind code	A1
Filing date	Sep 13, 2019
Priority date	Mar 14, 2013
Publication date	Jan 2, 2020
Grant date	—

Abstract

This invention relates to compositions and methods which make advantageous use of vinylidene fluoride (CH2═CF2), and in particular embodiments, to heat transfer fluids and heat transfer methods, blowing agents, and thermoplastic foams which utilize vinylidene fluoride (CH2═CF2). Compositions of the present invention include from about 0.1 to about 60 percent, on a weight basis, of a co-agent and from about 99.0 to about 40 percent, on a weight basis, of vinylidene fluoride (CH2═CF2).

First claim

What is claimed is:

1 . A blowing agent composition comprising at least about 5% by weight of vinylidene fluoride (CH 2 ═CF 2 ) and from about 0.1 to about 60% by weight of at least one co-blowing agent.

2 . The blowing agent composition of claim 1 comprising from about 40 to about 99.9 percent by weight of vinylidene fluoride (CH 2 ═CF 2 ) and from about 0.1 to about 40 percent by weight of said at least one co-blowing agent.

3 . The blowing agent composition of claim 1 comprising from about 60 to about 90 percent by weight of vinylidene fluoride (CH 2 ═CF 2 ) and from about 10 to about 40 percent by weight of said at least one co-blowing agent.

4 . The blowing agent composition of claim 1 wherein said vinylidene fluoride (CH 2 ═CF 2 ) comprises at least about 15% by weight of the composition.

5 . The blowing agent composition of claim 1 wherein said vinylidene fluoride (CH 2 ═CF 2 ) comprises at least about 60% by weight of the composition.

6 . The blowing agent composition of claim 5 wherein the co-blowing agent is selected from the group consisting of a hydrocarbon, a hydrofluorocarbon, an ether, an alcohol, an aldehyde, a ketone, methyl formate, formic acid, water, trans-1,2-dichloroethylene, CO 2 and combinations of two or more thereof.

7 . A foamable composition comprising the blowing agent composition of claim 6 and at least one component capable of forming a thermoplastic foam or a thermoset foam.

8 . A closed cell foam formed from the foamable composition of claim 7 .

9 . A foam premix composition comprising polyol and vinylidene fluoride (CH 2 ═CF 2 ).

10 . A method of forming a foam comprising adding to a foamable and/or foaming composition a blowing agent comprising vinylidene fluoride (CH 2 ═CF 2 ) under conditions effective to form a foamed cellular structure, wherein said foamable or foaming composition comprises a foam-forming substance selected from isocyanate, polyol and combinations of these.

Assignees

• Honeywell Int Inc

Inventors

• Singh Rajiv Ratna
• Williams David J
• Richard Robert

Classifications

• C08G18/7664

  containing alkylene polyphenyl groups · CPC title

• C08J9/149

  Mixtures of blowing agents covered by more than one of the groups C08J9/141 - C08J9/143 · CPC title

• C08J2203/182

  of physical blowing agents, e.g. acetone and butane · CPC title

• C08J2325/06

  Polystyrene · CPC title

• C08J2375/04

  Polyurethanes · CPC title