Atofina Chemicals, Inc.

Arkema Inc.

Elf Atochem North America, Inc.

Jinhuang Wu

Douglas R Dillon

Richard M Crooker

Laurent S J Caron

Saeid Zerafati

Jiri E Kresta

Michael Q Tran

Laurent Serge Caron

A tran-1,2-dichloroethylene blend which comprises a combination of a major amount of tran-1,2-dichloroethylene and a minor amount of a hydrofluorocarbon or an alkoxy perfluoroalkane having an elevated flash point is disclosed. The combination exhibits a flash point significantly higher than trans-1,2-dichloroethylene alone while containing only a minor amount of the component exhibiting the high Global Warming Potential. The preferred hydrofluorocarbon is 1,1,1,2,2,3,4,5,5,5-decafluoropentane or 3,3,4,4,5,5,6,6,6-nonafluoro-1-hexene and the preferred alkoxy perfluoroalkane is 1-(methoxy)nonafluorobutane.

Trans-1, 2-dichloroethylene and hydrofluorocarbon or alkoxy perfluoroalkane compositions having elevated flash points

A method for improving the processability of foam premixes containing HFC and/or pentane-based blowing agents in polyols is provided, which method comprises adding trans-1,2-dichloroethylene to said premix in an amount effective to enhance said processability.

Foam premixes having improved processability

Foam blowing agent blends of trans-1,2-dichloroethylene and one or more pentanes are provided, as are polyol premixes and foam compositions containing such blends. The resulting foams exhibit dramatic improvement in fire resistance.

Blowing agent blends

Polymer foams containing nanoclay are provided, the foams having improved properties such as thermal insulation values.

Polymer foam containing nanoclay

Foam blowing agent blends of D11 and a pentane are provided, as are polyol premixes containing such blends. The resulting foams exhibit dramatic improvement in fire resistance.

Foam blowing agents blends of HFC-134a and a pentane selected from n-pentane, i-pentane and i-pentane/cyclopentane are provided, as are polyol premixes and polyurethane foam compositions containing such blends.

Foam blowing agents blends of 5-50 mole % HCFC-22 and 95-50 mole % of n-pentane, i-pentane and/or cyclopentane are provided, as are polyol premixes and polyurethane foam compositions containing such blends.

PVC foam blown with a physical blowing agent comprising a gaseous HFC is provided.

PVC foam

Nonflammable foam blowing agent blends of 142b or 124 are provided, as are polyol premixes and polyurethane foam compositions containing such blends.

142b/124 blowing agent blends

Foam blowing agents blends of 10-90% of n- and/or i-pentane with 90-10% of 142b or 124 are provided, as are polyol premixes and polyurethane foam compositions containing such blends.

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Norristown, PA, United States of America

Jinhuang Wu