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nya furanpolyoler deras anvaendning som polyoler vid framstaellning av polyuretaner, sao erhaollna polyuretaner och foerfarande foer framstaellning av system.
nya furanpolyoler deras anvaendning som polyoler vid framstaellning av polyuretaner, sao erhaollna polyuretaner och foerfarande foer framstaellning av system.
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机译:新型呋喃多元醇,用作聚氨酯生产中的多元醇,获得的聚氨酯和体系的生产方法。
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PCT No. PCT/FR87/00491 Sec. 371 Date Aug. 22, 1988 Sec. 102(e) Date Aug. 22, 1988 PCT Filed Dec. 10, 1987 PCT Pub. No. WO88/04295 PCT Pub. Date Jun. 16, 1988.This invention relates to novel furan polyols, which are characterized in that they are the product of reaction of a strain selected from the group or consisting of a polyalcohol, a monoamine or polyamine, said polyalcohol or said amine possibly containing a furan cycle and mixtures thereof with a chain extension agent constituted by an organic epoxide, with the proviso that this organic epoxide is a furannic oxiran when this polyalcohol does not contain a furan cycle with the exclusion of 2,5(bis-hydroxy)furan as sole strain, when the chain extension agent does not contain any furan cycle. These furan polyols are used for the preparation of polyurethane foams having improved properties.
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