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    • 3. 发明授权
    • Strippable coating compositions
    • 可剥离涂料组合物
    • US06903156B2
    • 2005-06-07
    • US09799238
    • 2001-03-05
    • Hanns-Peter MüllerHorst GruttmannJoachim PetzoldtHeino MüllerChristoph Irle
    • Hanns-Peter MüllerHorst GruttmannJoachim PetzoldtHeino MüllerChristoph Irle
    • C08F283/00C08G18/08C08G18/12C08G18/66C09D5/00C09D5/20C09D157/00C09D175/04C08L51/00
    • C08G18/12C08F283/006C08G18/0823C08G18/6659C09D5/20C09D175/04C08G18/3234C08L33/00
    • 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.
    • 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。
    • 8. 发明申请
    • UV-hardenable dispersions based on polyisocyanates
    • 基于多异氰酸酯的UV-可硬化分散体
    • US20080194775A1
    • 2008-08-14
    • US12011875
    • 2008-01-30
    • Harald BlumErhard LuehmannStefan SommerChristoph Irle
    • Harald BlumErhard LuehmannStefan SommerChristoph Irle
    • C08G18/00
    • C08G18/792C08G18/12C08G18/283C08G18/284C08G18/3206C08G18/3215C08G18/348C08G18/672C08G18/725C08G18/758C09D175/16C08G18/3228C08G18/0823
    • Aqueous UV-hardenable dispersions are provided, as well as their use for the production of coating agents, in particular coatings for ligneous substrates. The dispersions comprise the reaction product of a) one or more polyisocyanates of which at least one polyisocyanate is an oligomeric polyisocyanate of hexamethylene diisocyanate with urethane, biuret, iminooxadiazindione and/or isocyanurate structural units, b) one or more monohydroxy-functional compounds containing (meth)acryloyl groups, c) at least one component c1), which has a hydrophilising effect on the basis of incorporated (potentially) ionic groups and comprises at least one further isocyanate-reactive group and/or at least one component c2) which contains non-ionically hydrophilically acting groups and comprises at least one further isocyanate-reactive group, d) one or more difunctional and/or polyfunctional amines or hydroxyamines as chain extender, and e) optionally other monomeric, oligomeric and/or polymeric substances, which may optionally also contain further unsaturated groups.
    • 提供了水性UV-可硬化分散体,以及它们用于生产涂层剂的用途,特别是用于木质基材的涂料。 分散体包含a)一种或多种多异氰酸酯的反应产物,其中至少一种多异氰酸酯是六亚甲基二异氰酸酯的低聚多异氰酸酯与氨基甲酸酯,缩二脲,亚氨基恶二嗪二酮和/或异氰脲酸酯结构单元,b)一种或多种单羟基官能化合物,其含有 甲基)丙烯酰基,c)至少一种组分c1),其基于引入的(潜在的)离子基团具有亲水化作用,并且包含至少一种另外的异氰酸酯反应性基团和/或至少一种组分c2),其包含 非离子亲水作用基团,并且包含至少一种另外的异氰酸酯反应性基团,d)一种或多种二官能和/或多官能胺或羟基胺作为扩链剂,和e)任选的其它单体,低聚物和/或聚合物质,其可以 任选地还含有其它不饱和基团。