Strippable coating compositions
    3.
    发明授权
    Strippable coating compositions 失效
    可剥离涂料组合物

    公开(公告)号:US06903156B2

    公开(公告)日:2005-06-07

    申请号:US09799238

    申请日:2001-03-05

    摘要: The present invention relates to light fast, aqueous, strippable coating compositions containing A) 40 to 90 wt. %, based on resin solids of A) and B), of aqueous polyurethane-polyureas and B) 10 to 60 wt. %, based on resin solids of A) and B), of polymers prepared from radically polymerizable monomers,wherein the percentages of A) and B) add up to 100, based on the weight of resin solids of A) and B). The present invention relates also to substrates coated with these strippable coating compositions. In addition, the present invention relates to the use of the stripped coatings as recycled material by mechanically comminuting the stripped coatings, optionally after cleaning, and then either pressing them in heatable presses to form sheets, or extruding them in an extruder to form endless thermoplastic threads, and then processing the resulting threads by known granulating methods to form cylindrical, spherical, lenticular or rhombic granules. Finally, the present invention relates to the use of the resulting thermoplastic granules for the production of articles by known processes such as injection molding, blow molding, deep-drawing, slush molding or flat extrusion.

    摘要翻译: 本发明涉及一种轻质,含水,可剥离的涂料组合物,其含有A)40-90wt。 %,基于A)和B)的树脂固体,水性聚氨酯 - 聚脲和B)10至60wt。 基于A)和B)的树脂固体,由可自由基聚合的单体制备的聚合物,其中A)和B)的百分比基于A)和B)的树脂固体的重量加到100上。 本发明还涉及涂覆有这些可剥离涂料组合物的基材。 此外,本发明涉及剥离的涂层作为再循环材料的用途,通过机械粉碎剥离的涂层,任选地在清洁之后,然后在可加热的压力机中压制以形成片材,或者在挤出机中挤出以形成环形热塑性塑料 螺纹,然后通过已知的造粒方法处理所得螺纹以形成圆柱形,球形,透镜状或菱形颗粒。 最后,本发明涉及所得到的热塑性颗粒用于通过已知方法如注射成型,吹塑,深冲,搪塑或扁平挤出生产制品的用途。

    Binders containing ortho ester groups
    5.
    发明授权
    Binders containing ortho ester groups 失效
    含有原酸酯基团的粘合剂

    公开(公告)号:US07659358B2

    公开(公告)日:2010-02-09

    申请号:US11037294

    申请日:2005-01-18

    摘要: A process for preparing polymers containing polyortho ester groups and optionally NCO groups by reacting A) and B) where A) is a polyortho ester containing at least one isocyanate-reactive group prepared by reacting at least one or more acyclic ortho esters with low molecular weight polyols having a functionality of 4-8 and a number-average molecular weight of 80-500 g/mol and B) is least one polyisocyanate. The polymers obtained from the process can be used to produce coatings, adhesive bonds and/or seals. The coating compositions can include one or more of the above-described polymers, optionally polyisocyanates, catalysts, and optionally auxiliaries and additives and can be used to coat substrates.

    摘要翻译: 通过使A)和B)反应制备含有聚酯酯基和任选的NCO基团的聚合物的方法,其中A)是含有至少一种异氰酸酯反应性基团的聚酯酯,其通过至少一种或多种低分子量的无环原酸酯反应而制备 官能度为4-8,数均分子量为80-500g / mol的多元醇和B)是至少一种多异氰酸酯。 从该方法获得的聚合物可用于生产涂料,粘合剂粘合剂和/或密封件。 涂料组合物可以包括一种或多种上述聚合物,任选的多异氰酸酯,催化剂和任选的助剂和添加剂,并且可以用于涂覆基材。

    Thermoplastic polyurethane elastomers
    9.
    发明授权
    Thermoplastic polyurethane elastomers 失效
    热塑性聚氨酯弹性体

    公开(公告)号:US06417312B1

    公开(公告)日:2002-07-09

    申请号:US08655783

    申请日:1996-05-31

    IPC分类号: C08G1810

    摘要: A process for the production of thermoplastic polyurethane elastomer is disclosed. The process entails (a) introducing and homogeneously mixing in a first static mixer (A) an isocyanate and (B) a mixture of compounds having an average of 1.8 to 3.0 Zerewitinoff active hydrogen atoms having a molecular weight of 400 to 10000 with and chain extenders having an average of 1.8 to 3.0 Zerewitinoff active hydrogen atoms and a molecular weight of 62 to 400 and optional auxiliaries to form a substantially unreacted mixture and (b) reacting said substantially unreacted mixture in a second static mixer to form thermoplastic polyurethane elastomer. The elastomer thus produced has improved mechanical properties and is suitable for the production of moldings.

    摘要翻译: 公开了一种生产热塑性聚氨酯弹性体的方法。 该方法需要(a)在第一静态混合器(A)中引入并均匀混合异氰酸酯和(B)具有平均1.8至3.0的分子量为400至10000的齐来维诺活性氢原子的化合物与链和 具有平均1.8-3.0的Zerewitinoff活性氢原子和分子量为62-400的增量剂和任选的助剂以形成基本上未反应的混合物,和(b)使所述基本上未反应的混合物在第二静态混合器中反应形成热塑性聚氨酯弹性体。 由此制造的弹性体具有改善的机械性能,并且适于制造模制品。