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22 条记录 (耗时 0.02 秒)

    Polyurethane type curable coating composition
    3.
    发明授权
    Polyurethane type curable coating composition 失效
    聚氨酯类固化涂料组合物

    公开(公告)号：US5169921A

    公开(公告)日：1992-12-08

    申请号：US831138

    申请日：1992-02-04

    申请人： Tetsuo Shiraiwa ,  Shigeo Mori

    发明人： Tetsuo Shiraiwa ,  Shigeo Mori

    IPC分类号： C08G18/48

    CPC分类号： C08G18/4862

    摘要： The invention relates to a polyurethane type curable coating composition. This coating composition comprises an organic compound having a number average molecular weight of 300 to 20,000, which is represented by formula (1), and a polyisocyanate compound.Z--[(A).sub.m --(B).sub.a --H].sub.k (1)whereinA means ##STR1## B means --R.sup.3 O--; the mode of bonding between A and B may be random or block;Z means an active hydrogen compound residue;R.sup.1 means an alkylene group containing 1 to 10 carbon atoms;R.sup.2 means an alkyl group, an alkenyl group, an aryl group, an alkylaryl group or an aralkyl group each containing 1 to 20 carbon atoms;R.sup.3 means an alkylene group containing 2 to 30 carbon atoms;a means a number of 0 to 100;k means a number of 1 to 12;m means a number of 1 to 250; andn means a number of 0 to 5.Coating a substrate with the coating composition of the invention yields a coating film which is high in flexibility and adhesion to the substrate even at low temperature.

    Poly(glycidyl ether)block copolymers and process for their preparation
    8.
    发明授权
    Poly(glycidyl ether)block copolymers and process for their preparation 失效
    聚（缩水甘油醚）嵌段共聚物及其制备方法

    公开(公告)号：US4485211A

    公开(公告)日：1984-11-27

    申请号：US418341

    申请日：1982-09-15

    申请人： Yoshihisa Okamoto

    发明人： Yoshihisa Okamoto

    IPC分类号： C08G65/00 ,  C08G18/48 ,  C08G18/50 ,  C08G18/62 ,  C08G18/67 ,  C08G59/50 ,  C08G59/62 ,  C08G65/22 ,  C08G65/26 ,  C08G65/28 ,  C08G65/32 ,  C08L63/00 ,  C08F297/00 ,  C08G65/12

    CPC分类号： C08G65/2645 ,  C08G18/4862 ,  C08G18/50 ,  C08G18/6212 ,  C08G18/6795 ,  C08G59/504 ,  C08G59/62 ,  C08G65/22 ,  C08L63/00

    摘要： Under particular conditions, a cationic ring-opening polymerization of a first oxirane monomer selected from the group consisting of an acyclic glycidyl ether, a cyclic glycidyl ether, and a haloalkyl epoxide, in the presence of a hydroxyl-containing organic material ("HCM"), for example a polymer (referred to herein as a `hydroxyl-prepolymer`), and a particular catalyst, produces a polymerization having `living polymerization` characteristics. The result is that molecular weight (mol wt) of the resulting polymer is directly proportional to the conversion of the monomer to said resulting polymer. This HCM serves as a chain propagator which initially furnishes OH groups as propagation sites. Subsequently, a second oxirane monomer, different from said first, is sequentially polymerized to yield a block copolymer. Branched block copolymers, or linear block copolymers of a HCM and (a) one or more glycidyl ethers, or (b) a haloalkyl epoxide and at least one glycidyl ether, may be prepared. Halogen containing segments of the block copolymers of the invention may be aminated to produce amphophilic polymers.

    摘要翻译： 在特定条件下，在含羟基有机材料（“HCM”）的存在下，选自非环状缩水甘油醚，环状缩水甘油醚和卤代烷基环氧化物的第一环氧乙烷单体的阳离子开环聚合， ），例如聚合物（本文中称为“羟基预聚物”）和特定催化剂，产生具有“活性聚合”特性的聚合。 结果是所得聚合物的分子量（mol wt）与单体与所得聚合物的转化率成正比。 该HCM用作链传播器，其最初提供OH基团作为传播位点。 随后，将不同于所述第一环氧乙烷单体的第二环氧乙烷单体依次聚合以产生嵌段共聚物。 可以制备支链嵌段共聚物或HCM的直链嵌段共聚物和（a）一种或多种缩水甘油醚，或（b）卤代烷基环氧化物和至少一种缩水甘油醚。 可以将本发明的含嵌段共聚物的含卤素胺化以制备两性聚合物。