Polyether based, high resilient polyurethane foam

Details Polyether based, high resilient polyurethane foam Polyether based, high resilient polyurethane foam

C - Chemistry, Metallurgy

08

G

403/30

C08G 18/48 (2006.01) C08J 9/00 (2006.01)

Patent

CA 1064649

ABSTRACT OF THE DISCLOSURE A method is disclosed in which polyether based high resilient polyurethane foams are produced. The foams have low shrinkage and are free of voids. These two main physical properties are obtained without the sacrifice of other important physical properties. The results are achieved by utilizing novel siloxane- oxyalkylene copolymeric foam stabilizers of the general formula Me3Si(OSiMe2)h(OSiMeG)dOSiMe3 where h has an average value of about 0, 1 or 3, d has an average value of about 1 or 2, Me is the methyl radical and G is -(CH2)3(OCH2,CH)2OCH3 O CH3 or -(CH2)3(OCH2,CH)2OCCH3 or -(CH2)3(OCH2,CH)2.5OCH3-. CH3 CH3

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