Manufacture of polymers in bead form from water-soluble, ethylenically
unsaturated monomers
    1.
    发明授权
    Manufacture of polymers in bead form from water-soluble, ethylenically unsaturated monomers 失效
    从水溶性烯属不饱和单体制造珠粒形聚合物

    公开(公告)号:US4189559A

    公开(公告)日:1980-02-19

    申请号:US817253

    申请日:1977-07-20

    IPC分类号: C08F2/00 C08F2/20 C08F2/32

    CPC分类号: C08F2/32

    摘要: Production of polymers in bead form by forming a water-in-oil suspension of an aqueous solution containing at least one water-soluble ethylenically unsaturated monomer in an inert hydrophobic liquid organic dispersion medium and polymerizing the suspended monomer in the presence of a polymerization initiator and a protective colloid obtained by reacting an oily or resinous polymer of an olefin and/or diolefin, said polymer containing hydrogen atoms in the allyl position, with 2 to 30% by weight, based on the oil and/or resin, of maleic anhydride.

    摘要翻译: 通过在惰性疏水性液体有机分散介质中形成含有至少一种水溶性烯键式不饱和单体的水溶液的油包水悬浮液并在聚合引发剂存在下聚合悬浮的单体和 通过烯烃和/或二烯烃的油性或树脂状聚合物,所述含烯丙基位置中含有氢原子的聚合物以油和/或树脂为基础计,为2至30重量%的马来酸酐而获得的保护胶体。

    Polyurethane adhesive mixtures
    2.
    发明授权
    Polyurethane adhesive mixtures 失效
    聚氨酯胶粘剂混合物

    公开(公告)号:US4731410A

    公开(公告)日:1988-03-15

    申请号:US881244

    申请日:1986-07-02

    摘要: Polyurethane adhesive mixtures or polyurethane adhesive solutions contain(a) a polyurethane elastomer which advantageously has a mean molecular weight of not less than 30,000 and which is prepared by reacting(i) one or more essentially linear polyesterpolyols and(ii) one or more chain extenders with(iii) a mixture of 4,4'- and 2,4'-diphenylmethane diisocyanate isomers in a weight ratio of from 60:40 to 40:60 and(b) if appropriate, additives and/or organic solvents.

    摘要翻译: 聚氨酯粘合剂混合物或聚氨酯粘合剂溶液包含(a)有利地具有不小于30,000的平均分子量的聚氨酯弹性体,其通过(i)一种或多种基本上线性的聚酯多元醇和(ii)一种或多种扩链剂 与(iii)重量比为60:40至40:60的4,4'-和2,4'-二苯基甲烷二异氰酸酯异构体的混合物和(b)如果合适的话,添加剂和/或有机溶剂。

    Moisture-curing, storage stable, single-component polyurethane systems
    3.
    发明授权
    Moisture-curing, storage stable, single-component polyurethane systems 失效
    水分固化,储存稳定,单组分聚氨酯体系

    公开(公告)号:US4469831A

    公开(公告)日:1984-09-04

    申请号:US489538

    申请日:1983-04-28

    摘要: The object of this invention is a moisture-curing, storage stable, single-component polyurethane system comprising:A. a polyurethane prepolymer with a free isocyanate content of 1 to 5 percent by weight;B. a dialdimine having the formulaR[--N.dbd.CH--C(CH.sub.3).sub.2 --CH.sub.2 --O--CO--CH--(CH.sub.3).sub.2 ].sub.2in whichR is a divalent aliphatic radical with 2 to 10 carbon atoms, aliphatic radical having 4 to 10 carbon atoms and containing ether oxygen and/or lower alkylamino nitrogen atoms, cycloaliphatic radical with 6 to 15 carbon atoms oraromatic radical with 6 to 21 carbon atoms;andC. an acid catalyst selected from the group consisting of aliphatic carboxylic acids, aromatic carboxylic acids, toluenesulfonic acid, and mixtures thereof.The polyurethane systems are used as coating, sealing, casting, spackling and bonding materials.

    摘要翻译: 本发明的目的是一种湿固化,储存稳定的单组分聚氨酯体系,其包含:A.具有1至5重量%游离异氰酸酯含量的聚氨酯预聚物; B.具有式R [-N = CH-C(CH 3)2 -CH 2 -O-CO-CH-(CH 3)2] 2的二咪唑,其中R是具有2至10个碳原子的二价脂族基团,脂族 具有4至10个碳原子且含有醚氧和/或低级烷基氨基氮原子的基团,具有6至15个碳原子的脂环族基团或具有6至21个碳原子的芳族基团; 和C.选自脂族羧酸,芳族羧酸,甲苯磺酸及其混合物的酸催化剂。 聚氨酯系统用作涂层,密封,铸造,分散和粘合材料。