Compositions containing rheology modifiers with functional
group-containing polymers
    24.
    发明授权
    Compositions containing rheology modifiers with functional group-containing polymers 失效
    含有含官能团聚合物的流变改性剂的组合物

    公开(公告)号:US6111001A

    公开(公告)日:2000-08-29

    申请号:US198837

    申请日:1998-11-24

    CPC分类号: C09D201/025 C09D5/04

    摘要: Disclosed are compositions comprised of (a)a polymer containing pendant and/or functional groups selected from the group consisting of carbamate, urethane and/or amide functional groups; and (b) a rheology modifier comprising the reaction product of an amine and an isocyanate; and, optionally, a polymer which is different from the polymer (a) which contains carbamate, urethane and/or amide functional groups. Also disclosed are curable compositions comprised of the compositions described above which further comprise (c) a curing agent having functional groups reactive with the functional groups of the polymer (a). The curable compositions are useful for a variety of applications such as adhesives, sealants and surface coatings where the presence of a carbamate, urethane and/or amide functional polymer in conjunction with the rheology modifier provides improved thixotropy and superior sag resistance.

    摘要翻译: 公开了包含(a)含有选自氨基甲酸酯,氨基甲酸酯和/或酰胺官能团的侧基和/或官能团的聚合物的组合物; 和(b)包含胺和异氰酸酯的反应产物的流变改性剂; 和任选的不同于含有氨基甲酸酯,氨基甲酸酯和/或酰胺官能团的聚合物(a)的聚合物。 还公开了包含上述组合物的可固化组合物,其还包含(c)具有与聚合物(a)的官能团反应的官能团的固化剂。 可固化组合物可用于各种应用,例如粘合剂,密封剂和表面涂层,其中氨基甲酸酯,氨基甲酸酯和/或酰胺官能聚合物与流变改性剂的结合提供了改善的触变性和优异的抗流挂性。

    Curable film-forming compositions containing amide functional polymers
    25.
    发明授权
    Curable film-forming compositions containing amide functional polymers 失效
    含有酰胺官能聚合物的可固化成膜组合物

    公开(公告)号:US5780559A

    公开(公告)日:1998-07-14

    申请号:US681051

    申请日:1996-07-22

    摘要: A film-forming composition is provided comprising: (i) an amide functional polymer, copolymer or oligomer selected from (a) acrylic polymers, (b) polyesters, (c) polyurethanes, (d) polyethers or (e) mixtures thereof; and (ii) an aminoplast crosslinking agent containing methylol and/or methylol ether groups. The acrylic polymers have a plurality of groups of at least one of the structures: ##STR1## wherein n is 0 or 1, R.sub.1 is hydrogen or methyl, R.sub.2 is a divalent linking group having about 1 to 30 carbon atoms when the group is of the first structure, or R.sub.2 is alkylene having about 2 to 13 carbon atoms when the group is of structure II, and R.sub.3 is hydrogen or lower alkyl having 1 to 4 carbon atoms. The (b), (c), and (d) polymers each have a plurality of terminal amide groups. The film-forming composition prior to curing has a theoretical hydroxyl value less than about 50 based on total resin solid weight of the film-forming composition, excluding any hydroxyl functionality associated with N-methylol groups. After curing, the film-forming composition exhibits a high level of acid etch resistance. The film forming composition can also be the clear film-forming composition with a base coat in a multi-component composite coating composition.

    摘要翻译: 提供一种成膜组合物,其包括:(i)酰胺官能聚合物,共聚物或低聚物,其选自(a)丙烯酸聚合物,(b)聚酯,(c)聚氨酯,(d)聚醚或(e)它们的混合物; 和(ii)含有羟甲基和/或羟甲基醚基团的氨基塑料交联剂。 丙烯酸类聚合物具有多个至少一个以下结构的基团:其中n为0或1,R 1为氢或甲基,R 2为具有约2个碳原子的二价连接基团 当该基团为第一结构时为1至30个碳原子,或当基团为结构II时,R 2为具有约2至13个碳原子的亚烷基,且R 3为氢或具有1至4个碳原子的低级烷基。 (b),(c)和(d)聚合物各自具有多个末端酰胺基团。 固化前的成膜组合物的理论羟值基于成膜组合物的总树脂固体重量小于约50,不包括与N-羟甲基相关的任何羟基官能团。 固化后,成膜组合物具有高水平的耐酸蚀性。 成膜组合物也可以是在多组分复合涂料组合物中具有底涂层的透明成膜组合物。