Water-dispersible blocked isocyanates, method of manufacture, and use
thereof
    44.
    发明授权
    Water-dispersible blocked isocyanates, method of manufacture, and use thereof 失效
    水分散性封闭异氰酸酯,其制造方法和用途

    公开(公告)号:US5693737A

    公开(公告)日:1997-12-02

    申请号:US588960

    申请日:1996-01-19

    摘要: The invention relates to a blocked polyisocyanate having an NCO functionality of from 2.2 to 4.5 and an average molecular weight of 800 to 25,000 and containing (1) blocked isocyanate groups corresponding to an NCO content of 5 to 20 wt. % calculated as free NCO, relative to unblocked polyisocyanate, (2) 1 to 75 meq of ionic groups per 100 g of blocked polyisocyanate, and (3) 3 to 40 wt. % of polyalkylene oxide units relative to the blocked polyisocyanate prepared by the reaction of (a) organic polyisocyanates, (b) NCO-reactive compounds containing ionic or potentially ionic groups, (c) polyalkylene ethers, (d) NCO-blocking agents, and (d) optionally, other NCO-reactive compounds different from components (b), (c) and (d), wherein said process is carried out by either (A) reacting components (a), (b), (c) and, optionally, (e) to form an unblocked polyisocyanate intermediate and then reacting the intermediate with NCO-blocking agent (d) other than an alkali metal bisulfite to form the blocked polyisocyanate, or (B) reacting components (a), (c) and, optionally, (e) with an alkali-metal bisulfite to form the blocked polyisocyanate.

    摘要翻译: 本发明涉及NCO官能度为2.2〜4.5,平均分子量为800〜25,000的封端多异氰酸酯,其含有(1)对应于NCO含量为5〜20重量%的封端异氰酸酯基。 相对于未封端的多异氰酸酯计算的游离NCO%,(2)每100g封端多异氰酸酯1至75meq的离子基团,和(3)3至40wt。 通过(a)有机多异氰酸酯,(b)含有离子或潜在离子基团的NCO反应性化合物(c)聚亚烷基醚,(d)NCO封闭剂和 (d)任选地,不同于组分(b),(c)和(d)的其它NCO反应性化合物,其中所述方法通过(A),(b),(c)和 任选地(e)形成未封端的多异氰酸酯中间体,然后使中间体与除碱金属亚硫酸氢盐以外的NCO封闭剂(d)反应以形成封端多异氰酸酯,或(B)使组分(a),(c) 和任选地(e)与碱金属亚硫酸氢盐形成封端多异氰酸酯。

    Crosslinking agents for textile printing fixing agents
    45.
    发明授权
    Crosslinking agents for textile printing fixing agents 失效
    纺织印花固定剂交联剂

    公开(公告)号:US5607482A

    公开(公告)日:1997-03-04

    申请号:US525109

    申请日:1995-09-08

    摘要: The present invention relates to a method for textile printing with aqueous dispersions in which an organic fixing agent is crosslinked with a blocked polyisocyanate having (i) an average molecular weight of about 800 to about 25,000, (ii) a content of blocked isocyanate groups, calculated as free NCO and based on non-blocked polyisocyanate, corresponding to an NCO content of about 5 to about 20% by weight, (iii) an ionic group content of about 1 to about 75 milliequivalents per 100 g of blocked polyisocyanate, and (iv) a content of polyalkylene oxide units of about 1 to about 20% by weight, based on blocked polyisocyanate, said blocked polyisocyanate being obtained by the reaction of(a) organic polyisocyanates,(b) isocyanate-reactive compounds containing (potential) ionic groups,(c) polyalkylene ether alcohols,(d) NCO blocking agents, and(e) optionally, isocyanate-reactive compounds that are different from components (b), (c), and (d).

    摘要翻译: 本发明涉及用水分散体进行纺织印花的方法,其中有机固定剂与封端多异氰酸酯交联,所述封端多异氰酸酯的平均分子量为约800至约25,000,(ii)封端异氰酸酯基的含量, 计算为游离NCO并基于非封端多异氰酸酯,对应于约5至约20重量%的NCO含量,(iii)离子基团含量为约1至约75毫当量/ 100g封端多异氰酸酯,和( iv)基于封端多异氰酸酯的约1至约20重量%的聚环氧烷单元的含量,所述封端多异氰酸酯是通过(a)有机多异氰酸酯反应获得的,(b)含有(电位)离子的异氰酸酯反应性化合物 (c)聚亚烷基醚醇,(d)NCO封闭剂,和(e)任选的不同于组分(b),(c)和(d)的异氰酸酯反应性化合物。

    Coating compositions, a process for their production and their use for
coating water-resistant substrates
    47.
    发明授权
    Coating compositions, a process for their production and their use for coating water-resistant substrates 失效
    涂料组合物,其制备方法及其用于涂覆耐水基材的用途

    公开(公告)号:US5459197A

    公开(公告)日:1995-10-17

    申请号:US251876

    申请日:1994-06-01

    摘要: The present invention relates to an aqueous two-component coating composition wherein the binder contains(a) a component which is dissolved and/or dispersed in water, has an average hydroxyl number of 15 to 200 mg KOH/g, and contains(a1) a polyol component having a content of 8 to 450 milliequivalents, per 100 g of component (a1) solids, of chemically incorporated ammonium groups, .dbd.N.dbd..sup.+, comprising one or more polyaddition resins which are water-dilutable, contain hydroxyl groups, and have a molecular weight (M.sub.n) of 500 to 20,000 and(a2) up to 10 wt %, based on the weight of component (a1), of one or more reactive diluents which are water-soluble, have a molecular weight (M.sub.n) below 500, and contain at least one isocyanate-reactive group, and(b) a polyisocyanate component having an NCO content of 5 to 25 wt % comprising one or more polyisocyanates which are emulsified in the aqueous solution and/or dispersion of hydroxyl group-containing component (a),wherein components (a) and (b) are present in an amount sufficient to provide an equivalent ratio of isocyanate groups of component (b) to isocyanate-reactive groups of component (a) of 0.5:1 to 5:1.The present invention also relates to a process for the production of this coating composition and to their use for the production of coatings on water-resistant substrates.

    摘要翻译: 本发明涉及水性双组分涂料组合物,其中粘合剂含有(a)溶解和/或分散在水中的组分,其平均羟值为15-200mg KOH / g,并含有(a1) 含有8至450毫当量的多元醇组分,每100g组分(a1)固体,化学掺入的铵基,= N = +,包含一种或多种可水稀释的加聚树脂,含有羟基,和 基于组分(a1)的重量,分子量(Mn)为500至20,000的(a2)至多10重量%,一种或多种水溶性的具有分子量(Mn)的反应性稀释剂, 低于500,并且含有至少一个异氰酸酯反应性基团,和(b)NCO含量为5至25重量%的多异氰酸酯组分,其包含在水溶液中乳化的一种或多种多异氰酸酯和/或羟基 - (a),其中组分(a)和(b) 以足以提供组分(b)的异氰酸酯基与组分(a)的异氰酸酯反应性基团的当量比为0.5:1至5:1的量存在。 本发明还涉及一种生产该涂料组合物的方法及其在耐水基材上生产涂料的用途。

    Polyisocyanate mixtures, a process for their production and their use
    48.
    发明授权
    Polyisocyanate mixtures, a process for their production and their use 失效
    多异氰酸酯混合物,其生产和使用的过程

    公开(公告)号:US5258452A

    公开(公告)日:1993-11-02

    申请号:US940564

    申请日:1992-09-04

    申请人: Helmut Reiff

    发明人: Helmut Reiff

    摘要: The present invention relates to polyisocyanates containing tertiary nitrogen with an (average) NCO functionality of 2.3 to 4.3 which, despite the presence of tertiary nitrogen and isocyanate groups in the same molecule, would be stable in storage, could be dissolved or dispersed in water without difficulty, optionally after at least partial alkylation or protonation, and would be suitable as starting components in the production of polyurethane plastics and, above all, as crosslinking agents for water-containing binders or binder components.

    摘要翻译: 本发明涉及含有(平均)NCO官能度为2.3至4.3的叔氮的多异氰酸酯,尽管在相同分子中存在叔氮和异氰酸酯基团,但其在储存中将是稳定的,可溶解或分散在没有 困难,任选地在至少部分烷基化或质子化之后,并且将适合作为聚氨酯塑料的制备中的起始组分,并且最重要的是作为含水粘合剂或粘合剂组分的交联剂。