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    • 6. 发明专利
    • WATER-DISPERSED PAINT
    • JPS62197470A
    • 1987-09-01
    • JP3964286
    • 1986-02-25
    • NIPPON PAINT CO LTD
    • NAGATA JUNICHIROUNOSAWA OSAMUFUKUSHIMA MINORU
    • C09D5/00C09D5/02C09D133/04
    • PURPOSE:To provide a water-dispersed paint which is suitable for use as a priming sealer for porous substrates and has excellent adhesion to topcoating paints, by emulsifying a soln. of an acrylic resin having a specified MW and a specified glass transition temp. in an org. solvent. CONSTITUTION:100pts.wt. acrylic resin having an MW of 3,000 to 30,000 and a glass transition temp. of not lower than 30 deg.C (e.g., a methyl methacrylate/ styrene copolymer) is dissolved in 25-150pts.wt. org. solvent. If desired, a surfactant, etc. are added thereto. While stirring in a homogenizer, etc., water is gradually added thereto to emulsify the mixture, thus obtaining the desired water-dispersed paint. The paint is suitable for use as a primer to flow PVC emulsion paints. When a porous substrate is coated with the paint as a priming sealer, the resin penetrates into the substrate to impart sufficient adhesion. Further, the paint is a water-dispersed one and hence it has no fear of causing environmental pollution or a fire by the evaporation of the org. solvent.
    • 8. 发明专利
    • Method of preventing steel material corrosion
    • 防止钢材腐蚀的方法
    • JPS6162568A
    • 1986-03-31
    • JP18421884
    • 1984-09-03
    • Nippon Paint Co Ltd
    • NISHIMURA TADAHITOFUKUSHIMA MINORU
    • C21D1/70C09D177/00C21D1/68
    • PURPOSE: A steel material to be heat-treated such as welding is coated, as a primer, with a cold-drying coating containing a thermoplastic polyamide resin and an anticorrosive pigment to prevent the formation of damaged parts by burning on the heat treatment of steel structures for parts of automobile and ships, thus giving coating films with high water resistance and high corrosion resistance.
      CONSTITUTION: The objective cold-drying coating is obtained by using (A) a thermoplastic polyamide resin, e.g., having a softening point of 80W150°C, molecular weight of 4,000W12,000, an acid value of less than 10 and an amine value of less than 8, (B) an anticorrosive pigment and (C), when needed, a hard resin such as alkylphenol resin. The resultant composition is used as a primer for steel materials to be heat-treated such as welding or stress-relieving.
      COPYRIGHT: (C)1986,JPO&Japio
    • 目的:将待热处理的钢材例如焊接作为底漆涂覆含有热塑性聚酰胺树脂和防腐蚀颜料的冷干涂层,以防止在钢的热处理中燃烧形成损坏部件 汽车和船舶部件的结构,从而得到具有高耐水性和高耐腐蚀性的涂膜。 构成:通过使用(A)热塑性聚酰胺树脂,例如软化点为80-150℃,分子量为4,000-12,000,酸值小于10,和 胺值小于8,(B)防腐颜料和(C),当需要时,可以使用硬树脂如烷基酚树脂。 所得组合物用作待热处理的钢材的底漆,例如焊接或应力消除。