Process for the production of foams
    1.
    发明授权
    Process for the production of foams 失效
    生产泡沫的过程

    公开(公告)号:US4098731A

    公开(公告)日:1978-07-04

    申请号:US775090

    申请日:1977-03-07

    IPC分类号: C08G18/18 C08J9/00

    摘要: The present invention relates to the production in closed molds, of foams with outstanding mold-release properties. These improved properties are obtained by including in the foamable mixture salts of saturated or unsaturated aliphatic or cycloaliphatic carboxylic acids having at least 8 carbon atoms and tertiary amines of the type in which the atom ratio of tertiary amine nitrogen to carbon in the molecule is between 1:3 and 1:12.

    摘要翻译: 本发明涉及封闭模具中生产具有出色脱模性能的泡沫。 这些改进的性能是通过在具有至少8个碳原子的饱和或不饱和脂族或脂环族羧酸的可发泡混合物盐和在该分子中叔胺氮与碳的原子比在1之间的叔胺类型 :3和1:12。

    Process for the preparation of modified polyisocyanates
    2.
    发明授权
    Process for the preparation of modified polyisocyanates 失效
    制备改性多异氰酸酯的方法

    公开(公告)号:US4320067A

    公开(公告)日:1982-03-16

    申请号:US228513

    申请日:1981-01-26

    摘要: A process for preparing modified polyisocyanates in which an organic polyisocyanate is reacted with a polyamine present in less than stoichiometric amount. Polyamines suitable to this process include (a) polyamines having more than three nonaromatically bound, basic nitrogen atoms of which at least two are primary and/or secondary amino nitrogen atoms, and (b) polyamine mixtures having an average of more than three nonaromatically bound, basic nitrogen atoms of which at least two are primary and/or secondary amino nitrogen atoms. These modified polyisocyanates are particularly useful starting materials for production of polyurethane plastics by the isocyanate-polyaddition process.

    摘要翻译: 制备改性多异氰酸酯的方法,其中有机多异氰酸酯与少于化学计量的多胺反应。 适用于该方法的多胺包括(a)具有多于三个非结合的碱性氮原子的多胺,其中至少两个是伯和/或仲氨基氮原子,和(b)平均多于三个非结合的多胺混合物 ,其中至少两个为碱性氮原子和/或仲氨基氮原子的碱性氮原子。 这些改性的多异氰酸酯是通过异氰酸酯加聚方法生产聚氨酯塑料的特别有用的起始原料。

    Sizes
    10.
    发明授权
    Sizes 失效
    尺寸

    公开(公告)号:US4499153A

    公开(公告)日:1985-02-12

    申请号:US466708

    申请日:1983-02-15

    CPC分类号: D21H17/07 Y10T428/31783

    摘要: New products having excellent sizing action, in particular on paper are obtained by reacting .alpha.,.beta.-unsaturated carboxylic acids or their reactive derivatives (such as, for example, esters or anhydrides) with amide-amines of higher carboxylic acids at temperatures above 120.degree. C.The new products are used in size formulations, preferably as aqueous alkaline and, in particular, aqueous ammoniacal, dispersions.

    摘要翻译: 通过使α,β-不饱和羧酸或其反应性衍生物(例如酯或酸酐)与高于120℃的高羧酸的酰胺 - 胺反应,得到具有优异施胶作用的新产品,特别是在纸上。 C.新产品用于尺寸配方中,优选用作碱性水溶液,特别是氨水分散体。