Processes for producing polyurethane foams containing alkoxysilane functional polymers and uses therefor
    57.
    发明授权
    Processes for producing polyurethane foams containing alkoxysilane functional polymers and uses therefor 有权
    制造含有烷氧基硅烷官能聚合物的聚氨酯泡沫的方法及其用途

    公开(公告)号:US08846775B2

    公开(公告)日:2014-09-30

    申请号:US12170522

    申请日:2008-07-10

    摘要: Processes comprising: (a) providing a composition comprising at least one silane-terminated polyurethane preploymer prepared by a process comprising: reacting (A) at least one polyether having a number average molecular weight (Mn) of 2000 to 8000 g/mol, and comprising 10 to 30 wt % ethylene oxide units based on all alkylene oxide units in the polyether; with (B) at least one isocyanate and alkoxysilane group-containing compound of the formula (I): wherein each of X, Y, and Z independently represents a C1-C8 alkyl or a C1-C8 alkoxy residue, with the proviso that at least one of X, Y, and Z represents a C1-C8 alkoxy group; and wherein R is an at least bifunctional, organic residue; (b) foaming the composition, and (c) curing the foamed composition in the presence of water; and uses of polyurethane foams prepared thereby.

    摘要翻译: 方法包括:(a)提供包含至少一种通过包括以下方法制备的硅烷封端的聚氨酯预聚合物的组合物:(A)至少一种数均分子量(Mn)为2000至8000g / mol的聚醚和 包含基于聚醚中所有烯化氧单元的10至30重量%的环氧乙烷单元; 与(B)至少一种式(I)的异氰酸酯和烷氧基硅烷基化合物:其中X,Y和Z各自独立地表示C1-C8烷基或C1-C8烷氧基残基,条件是在 X,Y和Z中的至少一个表示C1-C8烷氧基; 并且其中R是至少双官能的有机残基; (b)使组合物发泡,和(c)在水存在下使发泡组合物固化; 以及由此制备的聚氨酯泡沫的用途。

    Nanoparticle-modified polyisocyanates
    58.
    发明授权
    Nanoparticle-modified polyisocyanates 有权
    纳米粒子改性的多异氰酸酯

    公开(公告)号:US08088880B2

    公开(公告)日:2012-01-03

    申请号:US11985448

    申请日:2007-11-15

    IPC分类号: C08G18/06

    摘要: The present invention relates to innovative, nanoparticle-modified polyisocyanates, a process for their preparation and to their use in coating compositions and adhesives. The process comprises the steps of 1) reacting A) polyisocyanates with B) alkoxysilanes, and subsequently 2) incorporating by dispersion inorganic particles, optionally surface modified, having an average particle size of less than 200 nm as determined by means of dynamic light scattering in dispersion, where the alkoxysilanes are according to formula (I) Q-Z—SiXaY3-a  (I) in which Q is an isocyanate-reactive group, X is a hydrolysable group, Y is identical or different alkyl groups, Z is a C1-C12 alkylene group and a is an integer from 1 to 3.

    摘要翻译: 本发明涉及创新的纳米颗粒改性的多异氰酸酯,其制备方法及其在涂料组合物和粘合剂中的用途。 该方法包括以下步骤:1)使A)多异氰酸酯与B)烷氧基硅烷反应,随后2)通过分散无机颗粒(任选表面改性的)并入,通过动态光散射测定其平均粒度小于200nm 分散体,其中烷氧基硅烷根据式(I)其中Q是异氰酸酯反应性基团的QZ-SiXaY3-a(I),X是可水解基团,Y是相同或不同的烷基,Z是C1-C12 亚烷基,a为1〜3的整数。