Process for the production of stable dispersions, the dispersions so
produced, and the use thereof in the manufacture of polyurethanes
    2.
    发明授权
    Process for the production of stable dispersions, the dispersions so produced, and the use thereof in the manufacture of polyurethanes 失效
    用于生产稳定分散体的方法,如此制备的分散体及其在制备聚氨酯中的用途

    公开(公告)号:US4855352A

    公开(公告)日:1989-08-08

    申请号:US225403

    申请日:1988-07-28

    摘要: Stable finely-divided dispersions of polyureas and/or polyhydrazodicarbonamides in a hydroxyl-group-containing material are made by reacting (i) an isocyanate with (ii) a compound selected from polyamines, hydrazines, hydrazides and mixtures thereof in the presence of (iii) a hydroxyl compound selected from polyethers, polyesters, polyester amides, polycarbonates and mixtures thereof and (iv) a catalyst. The catalyst is a compound which catalyzes the reaction of isocyanate groups with hydroxyl groups. The catalyst is used in a quantity of at least 50 parts per million parts of (i), (ii) and (iii). These dispersions are particularly useful in the production of polyurethanes.

    摘要翻译: 通过使(i)异氰酸酯与(ii)选自多胺,肼,酰肼及其混合物的化合物在(iii)的存在下,使(ⅰ)异氰酸酯与(ⅱ)化合物反应,制备聚脲和/或聚肼基二酰胺在含羟基的材料中的稳定的微细分散体。 )选自聚醚,聚酯,聚酯酰胺,聚碳酸酯及其混合物的羟基化合物和(iv)催化剂。 催化剂是催化异氰酸酯基与羟基反应的化合物。 催化剂的用量至少为(i),(ii)和(iii)每百万份的50份。 这些分散体在聚氨酯的生产中特别有用。

    Stable dispersions and the manufacture thereof
    3.
    发明授权
    Stable dispersions and the manufacture thereof 失效
    稳定的分散体及其制造

    公开(公告)号:US4847320A

    公开(公告)日:1989-07-11

    申请号:US225691

    申请日:1988-07-28

    摘要: The present invention relates to a process for the production of stable dispersions of polyureas and/or polyhydrazodicarbonamides in a hydroxyl-group-containing material by reacting an organic di- or polyisocyanate with a composition selected from the group consisting of polyamines containing primary and/or secondary amine groups, hydrazines, hydrazides, and mixtures thereof, in said hydroxyl-group containing material, in the presence of a dispersion stabilizing compound.

    摘要翻译: 本发明涉及通过使有机二异氰酸酯或多异氰酸酯与选自以下的组合物反应制备聚脲和/或聚二酰二酰胺在含羟基材料中的稳定分散体的方法,所述组合物选自含有主要和/或 仲胺基,肼,酰肼及其混合物,在所述含羟基的物质中,在分散体稳定化合物的存在下。

    Stable dispersions and their use in the preparation of polyurethane foams
    5.
    发明授权
    Stable dispersions and their use in the preparation of polyurethane foams 失效
    稳定的分散体及其在制备聚氨酯泡沫体中的应用

    公开(公告)号:US5332763A

    公开(公告)日:1994-07-26

    申请号:US911838

    申请日:1992-07-10

    申请人: Mark A. Koshute

    发明人: Mark A. Koshute

    摘要: The present invention relates to an improved process for preparing foams comprising reacting polyisocyanates with an in situ produced stable low solids dispersion of polyureas and/or polyhydrazodicarbonamides in a hydroxyl-group-containing material as a dispersing agent by reacting:(a) organic polyisocyanates with(b) a member selected from the group consisting of (i) polyamines containing primary and/or secondary amino groups, (ii) hydrazines, (iii) hydrazides, or (iv) mixtures thereof, in(c) said hydroxyl-group-containing material.

    摘要翻译: 本发明涉及一种制备泡沫的改进方法,其包括使多异氰酸酯与原位生产的稳定的低固含量的聚脲和/或聚肼基二酰胺分散体在含羟基的材料中作为分散剂,反应:(a)有机多异氰酸酯与 (b)选自(i)含有伯和/或仲氨基的多胺,(ii)肼,(iii)酰肼或(iv)其混合物的成员的组分,(c)所述羟基 - 含有材料。