Water-soluble coating materials
    271.
    发明授权
    Water-soluble coating materials 失效
    水溶性涂料

    公开(公告)号:US3969300A

    公开(公告)日:1976-07-13

    申请号:US399884

    申请日:1973-09-24

    Abstract: A coating material having excellent adhesion to the surfaces of substrates including metals and excellent flexibility, durability, chemical-resistance and rust-preventive property which comprises water, a water-soluble organic solvent and a water-soluble, thermosetting resin as substantial film-forming component, said resin being obtained by (A) adding an amine to 100 parts by weight of a copolymer consisting of (1) 50 to 80.5 parts by weight of at least one polymerizable, unsaturated monomer free from hydroxyl group, (2) a total of 19.5 to 50 parts by weight of an .alpha.,.beta.-ethylenically unsaturated acid and an epoxy resin having at least two epoxy groups in the molecule, the proportion of said epoxy resin being 0.01 to 0.5 equivalent with respect to the carboxyl group contained in said .alpha.,.beta.-ethylenically unsaturated acid, said .alpha.,.beta.-ethylenically unsaturated acid having been reacted with 10 % or more of the epoxy groups of said epoxy resin, and (3) 0 to 30 parts by weight of at least one polymerizable, unsaturated monomer having a hydroxyl group in the molecule, the total amount of the (1), (2) and (3) components being 100 parts by weight, the amount of said amine being 0.5 to 2.0 equivalent with respect to the carboxyl group in the copolymer, thereby converting said copolymer into a water-soluble salt; and (B) adding, to said water-soluble salt, 4 to 50 parts by weight of a water-soluble amino resin.

    Abstract translation: 具有优异的粘合性的涂料,包括金属的表面,具有优异的柔韧性,耐久性,耐化学性和防锈性,其包括水,水溶性有机溶剂和水溶性热固性树脂作为实质成膜 所述树脂是通过(A)向100重量份的由(1)50-80.5重量份的至少一种不含羟基的可聚合的不饱和单体组成的共聚物中加入胺获得的,(2)总计 19.5至50重量份的α,β-烯键式不饱和酸和在分子中具有至少两个环氧基的环氧树脂,所述环氧树脂的比例相对于所述羧酸所含的羧基为0.01至0.5当量 α,β-烯属不饱和酸,所述α,β-烯属不饱和酸与所述环氧树脂的10%或更多的环氧基反应,和(3)0至30份 的至少一种在分子中具有羟基的可聚合的不饱和单体,(1),(2)和(3)成分的总量为100重量份,所述胺的量为0.5至2.0 相当于共聚物中的羧基,从而将所述共聚物转化成水溶性盐; 和(B)向所述水溶性盐中加入4至50重量份的水溶性氨基树脂。

    THERMOPLASTIC POLYURETHANE FILM AND MULTILAYER FILM

    公开(公告)号:US20230002542A1

    公开(公告)日:2023-01-05

    申请号:US17782374

    申请日:2020-12-03

    Abstract: Problem to be Solved
    A thermoplastic polyurethane film that is capable of achieving a stress relaxation property regardless of the type of polyol, while having good pasting workability, as well as a multilayer film using the same, is provided.
    Solution
    The thermoplastic polyurethane film is constituted by a reaction product obtained by using dicyclohexylmethane diisocyanate (H12MDI). This enables the thermoplastic polyurethane film and the multilayer film to have a good stress relaxation property regardless of the type of polyol, and to have excellent pasting workability.

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