Organosilicone polymers
    1.
    发明授权
    Organosilicone polymers 失效
    有机硅聚合物

    公开(公告)号:US3887601A

    公开(公告)日:1975-06-03

    申请号:US38286373

    申请日:1973-07-26

    Abstract: Organosilicone polymers are provided containing siliconcontaining units A, B and C, where A is SiO4/2, B is a monofunctional siloxy unit in which silicon is bonded to at least one organic moiety bearing an organic-capped poly(oxyalkylene) chain, and C is a monofunctional trihydrocarbylsiloxy unit, and in which there are from about 0.75 to about 2 moles of A, and from about 0.1 to about 1 mole of C, per mole of B. The polymers are useful as surfactants and find particular application in the manufacture of flexible polyester urethane cellular products, including flame-retarded foams.

    Abstract translation: 提供了含有含硅单元A,B和C的有机硅聚合物,其中A是SiO 4/2,B是单官能甲硅烷氧基单元,其中硅键合至至少一个有机封端的聚(氧化烯)链的有机部分, 并且C是单官能三烃基甲硅烷氧基单元,其中每摩尔B具有约0.75至约2摩尔的A和约0.1至约1摩尔的C。该聚合物可用作表面活性剂,并且特别适用于 制造柔性聚酯氨酯泡沫产品,包括阻燃泡沫。

    BETA-AMINO NITRILE CATALYSTS FOR POLYURETHANE PREPARATION

    公开(公告)号:CA1040788A

    公开(公告)日:1978-10-17

    申请号:CA197574

    申请日:1974-04-16

    Abstract: BETA-AMINO NITRILE CATALYSTS FOR POLYURETHANE PREPARATION Cellular urethane polymers essentially free of the strong, objectionable amine odor characteristic of N-ethylmorpholine, are provided by effecting the polyurethane forming reaction in the presence of beta-tert-amino nitriles. In view of their low residual odor and effectiveness in the catalysis of the water-isocyanate reaction, the beta-amino nitriles either alone or in combination with other tertiary amines, are used with particular advantage as direct replacements for N-ethyl-morpholine in the manufacture of water-blown flexible polyurethanes, both molded and free-rise, including highresilience foam as well as foams stabilized with either organosilicone or silicon-free organic surfactants. Especially effective for the formation of flexible polyester foam stabilized with either type of surfactant are blends of the beta-amino nitrile catalyst such as, in particular, 3-(N,N-dimethylamino)propionitrile, with dimethylethanolamine or a bis¢2-(N,N-dimethylamino)alkyl!-ether. S P E C I F I C A T I O N

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