Water-dispersible blocked isocyanates, method of manufacture, and use
thereof
    7.
    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:US5508370A

    公开(公告)日:1996-04-16

    申请号:US135642

    申请日:1993-10-12

    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。

    Fluorine-containing copolymers and aqueous dispersions prepared therefrom
    9.
    发明授权
    Fluorine-containing copolymers and aqueous dispersions prepared therefrom 失效
    含氟共聚物和由其制备的水分散体

    公开(公告)号:US5387640A

    公开(公告)日:1995-02-07

    申请号:US204842

    申请日:1994-03-02

    摘要: Finishers for texthes, leather, paper and mineral substrates consisting of fluorine-containing copolymers and aqueous dispersions prepared therefrom are characterized by the following percentages by weight of the comonomers, relative to the total weight of the copolymers:a) 60 to 90% by weight of perfluoroalkyl-containing (meth)acrylates of the formulaC.sub.n F.sub.2n+1 --X--0--CO--CR.sup.1 .dbd.CH.sub.2 (I),b) 1 to 35% by weight of monomers of the formulaCH.sub.2 .dbd.CR.sup.4 --COO--R.sup.5 (II)and/or styrene, acrylonitrile, vinyl acetate or vinyl propionate,c) 4 to 25% by weight of monomers of the formula ##STR1## d) 1 to 15% by weight of monomers of the formulaCH.sub.2 .dbd.CR.sup.11 --COOCH.sub.2 CH.sub.2 --N(R.sup.9,R.sup.10)(IVa)or[CH.sub.2 .dbd.CR.sup.11 --COO--CH.sub.2 CH.sub.2 --N(R.sup.9,R.sup.10,R.sup.12)].sup..sym. Y.sup..crclbar. (IVb)or ##STR2##

    摘要翻译: 由含氟共聚物和由其制备的水性分散体组成的纺织品,皮革,纸和矿物基材的装订机的特征在于以下共聚单体的重量百分数相对于共聚物的总重量:a)60至90重量% 的具有式CnF2n + 1-X-0-CO-CR1 = CH2(I)的全氟烷基的(甲基)丙烯酸酯,b)1至35重量%的式CH 2 = CR 4 -CO 2 -R 5(II )和/或苯乙烯,丙烯腈,乙酸乙烯酯或丙酸乙烯酯,c)4至25重量%的式(III)的单体d)1至15重量%的式CH 2 = CR 11 - COOCH 2 CH 2 -N(R 9,R 10)(IVa)或[CH 2 = CR 11 -COO -CH 2 CH 2 -N(R 9,R 10,R 12)](+)Y( - )(IVb)或(IVc)