Tetrafluorobutene blowing agent compositions for polyurethane foams

Patent metadata

Field	Value
Publication number	US-10113046-B2
Application number	US-201013501827-A
Country	US
Kind code	B2
Filing date	Oct 20, 2010
Priority date	Oct 23, 2009
Publication date	Oct 30, 2018
Grant date	Oct 30, 2018

Abstract

A blowing agent for thermosetting foams is disclosed. The blowing agent is 2,4,4,4-tetrafluorobutene-1 alone or in combination with a hydrofluoroolefin (HFO), hydrofluorocarbon (HFC), hydrochlorofluoroolefin (HCFO), or a hydrocarbon. The blowing agent is effective as a blowing agent in the manufacture of thermosetting foams.

First claim

The invention claimed is:

1. A process of foaming a polyurethane foam comprising mixing polyurethane foam forming components comprising one or more polyols, one or more surfactants, one or more catalysts and one or more flame retardants with a foam blowing agent comprising 2,4,4,4-tetrafluorobutene-1 wherein said polyurethane foam exhibits a k-factor at 50° F. when tested in accordance with ASTM C518 ranging from an initial, k-factor of 0.1347 Btu·in./ft 2 ·h·° F. to a k-factor of 0.1526 Btu·in./ft 2 ·h·° F. upon aging said foam for 120 days.

2. The process of claim 1 , wherein said foam blowing agent further comprising a hydrofluorocarbon.

3. The process of claim 2 wherein said hydrofluorocarbon is sleeted from the group consisting of difluoromethane (HFC32); 1,1,1,2,2-pentafluoroethane (HFC125); 1,1,1-trifluoroethane (HFC143a); 1,1,2,2-tetrafluorothane (HFC134); 1,1,1,2-tetrafluoroethane (HFC134a); 1,1 -difluoroethane (HFC152a); 1,1,1,2,3,3,3-heptafluoropropane (HFC227ea); 1,1,1,3,3 -pentafluopropane (HFC245fa); 1,1,1,3,3-pentafluobutane (HFC365mfc) 1,1,1,2,2,3,4,5,5,5-decafluoropentane (HFC4310mee) and mixtures thereof.

4. The process of claim 1 , wherein said foam blowing agent further comprising a hydrofluoroolefin.

5. The process of claim 4 wherein said hydrofluoroolefin is selected from the group consisting of tetrafluoropropenes (HFO1234); trifluoropropenes (HFO1243); tetrafluorobutene (HFO 1354 other than 2,4,4,4-tetrafluorobutene-1); pentafluorobutenes (HFO1345); heptafluorobutenes (HFO1327); heptafluoropentenes (HFO1447); octafluoropentenes (HFO1438); nonafluoropentenes (HFO1429) and mixtures thereof.

6. The process of claim 1 , wherein said foam blowing agent further comprises an additive selected from the group consisting of hydrocarbons, pentanes, butanes, C1 to C5 alcohols, C1 to C5 esters, C1 to C4 aldehydes, C1 to C4 ketones, C1 to C4 ethers, carbon dioxide, C1 to C4 diethers and mixtures thereof.

7. The process of claim 1 , wherein said foam blowing agent further comprising a hydrochlorofluoroolefin selected from the gropupd consisting of 1233zd (1-chloro-3,3,3-trifluoropropene) and 1233xf (2-3,3,3-trifluoropropene.

Assignees

• Chen Benjamin Bin
• Costa Joseph S
• Bonnet Philippe
• Arkema Inc

Inventors

• Chen Benjamin Bin
• Costa Joseph S
• Bonnet Philippe

Classifications

• C08J9/149

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

• C08J2375/04

  Polyurethanes · CPC title

• C08J2203/142

  Halogenated saturated hydrocarbons, e.g. H3C-CF3 · CPC title

• C08J9/146 Primary

  only fluorine as halogen atoms · CPC title

• C08J2203/12

  Organic compounds only containing carbon, hydrogen and oxygen atoms, e.g. ketone or alcohol · CPC title