Polyurethane dispersion in alcohol-water system
    1.
    发明授权
    Polyurethane dispersion in alcohol-water system 失效
    酒精 - 水体系中的聚氨酯分散体

    公开(公告)号:US06433073B1

    公开(公告)日:2002-08-13

    申请号:US09626028

    申请日:2000-07-27

    IPC分类号: C08J303

    摘要: A polyurethane dispersion and a method of making are provided. The polyurethane dispersion is stable in a mixture of alcohol and water. The dispersion comprises the reaction product of (a) an isocyanate terminated polyurethane prepolymer comprising the reaction product of (i) at least one oligomeric polyactive hydrogen compound insoluble in said alcohol, wherein said polyactive hydrogen compound is an alkyl, aryl, or aralkyl structure optionally substituted by N, O, and S; (ii) at least one polyisocyanate, and (iii) at least one polyactive hydrogen compound soluble in said mixture of alcohol and water; (b) a polyfunctional chain extender; and (c) a monofunctional chain terminator; wherein the equivalent ratio of difunctional chain extender to prepolymer isocyanate is 0.60 to 1.20.

    摘要翻译: 提供聚氨酯分散体和制造方法。 聚氨酯分散体在醇和水的混合物中是稳定的。 分散体包含(a)异氰酸酯封端的聚氨酯预聚物的反应产物,其包含(i)至少一种不溶于所述醇的低聚物多官能氢化合物的反应产物,其中所述多官能氢化合物是任选的烷基,芳基或芳烷基结构 被N,O和S取代; (ii)至少一种多异氰酸酯,和(iii)至少一种可溶于所述醇和水的混合物的多官能氢化合物; (b)多官能增链剂; 和(c)单官能链终止剂; 其中双官能扩链剂与预聚物异氰酸酯的当量比为0.60〜1.20。

    Polyurethane film-forming dispersions in alcohol-water system
    3.
    发明授权
    Polyurethane film-forming dispersions in alcohol-water system 有权
    聚氨酯成膜分散体在酒精 - 水体系中

    公开(公告)号:US06605666B1

    公开(公告)日:2003-08-12

    申请号:US09627110

    申请日:2000-07-27

    IPC分类号: C08J303

    摘要: A polyurethane dispersion and method of making are provided. The dispersion is stable in an alcohol-water mixture. The dispersion is a reaction product of: (i) at least one oligomeric polyactive hydrogen compound, wherein said compound is an alkyl, aryl, or aralkyl structure optionally substituted in and/or on the chain by N, O, S and combinations thereof, and wherein the compound is insoluble in 50:50 weight percent of said alcohol-water mixture; (ii) at least one polyisocyanate, and (iii) at least one polyactive hydrogen compound soluble in the alcohol-water mixture selected from the group consisting of a compound containing an ionic group, a compound containing a moiety capable of forming an ionic group, a compound containing a polyester, polyether, or polycarbonate group having a ratio of 5 or less carbon atoms for each oxygen atom, and mixtures thereof; and (b) at least one polyfunctional chain extender.

    摘要翻译: 提供聚氨酯分散体和制备方法。 分散体在醇 - 水混合物中是稳定的。 分散体是:(i)至少一种低聚多官能氢化合物的反应产物,其中所述化合物是在N,O,S及其组合中任选地在链中和/或链上取代的烷基,芳基或芳烷基结构, 并且其中所述化合物不溶于50:50重量百分比的所述醇 - 水混合物; (ii)至少一种多异氰酸酯,和(iii)可溶于所述醇 - 水混合物中的至少一种多活性氢化合物,所述醇 - 水混合物选自含有离子基团的化合物,含有能够形成离子基团的部分的化合物, 含有每个氧原子具有5个或更少碳原子比的聚酯,聚醚或聚碳酸酯基团的化合物及其混合物; 和(b)至少一种多官能扩链剂。

    REACTION MIXTURE IN THE FORM OF AN EMULSION AND PROCESS FOR PRODUCTION OF POLYURETHANE FOAMS FROM SUCH A REACTION MIXTURE
    5.
    发明申请
    REACTION MIXTURE IN THE FORM OF AN EMULSION AND PROCESS FOR PRODUCTION OF POLYURETHANE FOAMS FROM SUCH A REACTION MIXTURE 审中-公开
    乳液形成中的反应混合物和从反应混合物制备聚氨酯泡沫体的方法

    公开(公告)号:US20140011897A1

    公开(公告)日:2014-01-09

    申请号:US13883013

    申请日:2011-11-03

    IPC分类号: C08G18/06 C08G18/08

    摘要: The present invention relates to a reaction mixture in emulsion form, suitable for conversion into polyurethanes, comprising a first phase and a second phase in the emulsion and further comprising the following components: A) polyols; B) blowing agent; C) surfactants; and D) isocyanates, wherein the isocyanate-reactive compounds A) are present in the first phase of the emulsion and the blowing agent B) is present in the second phase. The blowing agent B) is present in the near-critical or supercritical state and the isocyanate D) is present in the second phase in a proportion of ≧10% by weight of the total amount of isocyanate D) in the composition. The invention further relates to a method of producing polyurethane foams by providing such a reaction mixture, wherein a polymerization takes place at the freshly formed interface between the polyol phase and the blowing agent phase, to the use of such a reaction mixture for producing polyurethane foams and also to the polyurethane foams obtained.

    摘要翻译: 本发明涉及一种适用于转化成聚氨酯的乳液形式的反应混合物,其包含乳液中的第一相和第二相,并且还包含以下组分:A)多元醇; B)发泡剂; C)表面活性剂; 和D)异氰酸酯,其中异氰酸酯反应性化合物A)存在于乳液的第一相中,并且发泡剂B)存在于第二相中。 发泡剂B)以近临界或超临界状态存在,异氰酸酯D)以组分中异氰酸酯D)总重量的> = 10重量%的比例存在于第二相中。 本发明还涉及通过提供这样的反应混合物来生产聚氨酯泡沫的方法,其中聚合在多元醇相和发泡剂相之间新形成的界面处发生,以使用这种反应混合物来制备聚氨酯泡沫 以及所获得的聚氨酯泡沫。

    Encapsulation by interfacial polycondensation
    8.
    发明授权
    Encapsulation by interfacial polycondensation 失效
    通过界面聚合进行包封

    公开(公告)号:US3577515A

    公开(公告)日:1971-05-04

    申请号:US3577515D

    申请日:1968-03-04

    申请人: PENNWALT CORP

    发明人: VANDEGAER JAN E

    摘要: PROCEDURE FOR ENCAPSULATION OF MATERIALS INITIALLY EMBODIED, CONTAINED OR CARRIED IN LIQUID IS EFFECTED BY INTERFACIAL POLYCONDENSATION BETWEEN COACTING INTERMEDIATES RESPECTIVELY IN IMMISCIBLE LIQUIDS, DROPLETS OF ONE LIQUID WHICH IS TO BE ENCAPSULATED AND WHICH CONTAINS ONE INTERMEDIATE BEING FIRST ESTABLISHED IN A BODY OF THE OTHER LIQUID. THEREAFTER THE SECOND INTERMEDIATE IS INCORPORATED IN THE OTHER LIQUID TO PRODUCE MINUTE CAPSULES OF THE FIRST LIQUID HAVING A SKIN OF POLYCONDENSATE, E.G. POLYAMIDE, POLYSULFONAMIDE, POLYESTER, POLYCARBONATE, POLYURETHANE, OR POLYUREA. NOTABLY EFFECTIVE OPERATION INVOLVES CONTINUOUSLY SUPPLYING BOTH THE FIRST LIQUID CONTAINING THE FIRST INTERMEDIATE, AND THE SECOND LIQUID, INTO A REGION WHERE CONTINOUS AGITATION EFFECTS DISPERSION OF THE FIRST LIQUID AS DROPLETS, THE DISPERSION BEING CONTINUOUSLY BROUGHT TOGETHER WITH THE SECOND INTERMEDIATE, THEREBY CONTINUOUSLY ESTABLISHING THE DROPLET DISPERSION IN LIQUID CONTAINING THE SECOND INTERMEDIATE, AND IN CONSEQUENCE CONTINUOUSLY PRODUCING ENCAPSULATED DROPLETS BY INTERFACIAL POLYCONDENSATION BETWEEN THE INTERMEDIATES.