公开(公告)号：US3991034A

公开(公告)日：1976-11-09

申请号：US564979

申请日：1975-04-03

申请人： Kozi Takeo ,  Takashige Kato ,  Yoshiho Toyota ,  Akio Nakagi ,  Takayuki Kado

发明人： Kozi Takeo ,  Takashige Kato ,  Yoshiho Toyota ,  Akio Nakagi ,  Takayuki Kado

IPC分类号： C09D5/03 ,  C08G18/00 ,  C08G18/42 ,  C08G18/80 ,  C08G63/20 ,  C08G63/60 ,  C09D5/46 ,  C09D175/00 ,  C09D175/06 ,  B05D1/06

CPC分类号： C08G63/60 ,  C08G18/4211 ,  C08G18/4219 ,  C08G18/4286 ,  C08G18/8067 ,  C08G63/20 ,  C08G2150/20

摘要： A polyester resin composition suitable for preparing a powder paint, obtained by mixing a polyester, which is obtained by depolymerizing a polyester having a high degree of polymerization with an intrinsic viscosity of about 0.4 or more with at least one of a substantially nonvolatile alcohol and an ester having at least one alcoholic hydroxyl group in the same molecule, melts at a temperature between about 45.degree. C and about 120.degree. C and has terminal hydroxyl groups and an average degree of polymerization ranging from about 5 to about 50, with a polyisocyanate blocked with an alkyl p-hydroxybenzoate by melting. The polyester resin composition can be readily pulverized, has no blocking property and has the fluidity at relatively low temperatures sufficient to facilitate pigmentation, and can form beautiful coatings. The coatings have good resistance to weathering, solvents, humidity and fouling, and excellent adhesion to a metal.

摘要翻译： 一种适用于制备粉末涂料的聚酯树脂组合物，该粉末涂料是通过将具有高聚合度的聚酯的特性粘度为约0.4以上的聚酯与至少一种基本上不挥发的醇和 在同一分子中具有至少一个醇羟基的酯在约45℃至约120℃的温度下熔融并具有末端羟基，平均聚合度范围为约5至约50，多异氰酸酯封闭 与对羟基苯甲酸烷基酯熔融。 聚酯树脂组合物可以容易地粉碎，没有阻塞性，并且在相对低的温度下具有足以促进着色的流动性，并且可以形成美丽的涂层。 涂层具有良好的耐候性，溶剂性，湿度和结垢性以及对金属的优异粘附性。

公开(公告)号：US3954901A

公开(公告)日：1976-05-04

申请号：US431992

申请日：1974-01-09

申请人： Toru Watanabe ,  Rinzo Ohno ,  Takashige Kato ,  Singo Sasaki ,  Kunio Tsukamoto

发明人： Toru Watanabe ,  Rinzo Ohno ,  Takashige Kato ,  Singo Sasaki ,  Kunio Tsukamoto

IPC分类号： C08G18/80 ,  C08G63/60 ,  C09D5/46 ,  C09D163/00 ,  C09D167/00 ,  C09D167/04 ,  C08L61/28 ,  C08L63/00

CPC分类号： C09D167/04 ,  C08G18/807 ,  C08G63/60 ,  C09D163/00 ,  C09D167/00 ,  C08G2150/20

摘要： A polyester resin composition obtained by mixing a molten polyester having an average degree of polymerization ranging from about 5 to 50 mainly comprising a terephthalic acid unit, a p-hydroxybenzoic acid unit and an ethylene glycol unit, and one hardener selected from the group consisting of a diglycidyl compound, hexaalkoxymethylmelamine or the condensate thereof, and a blocked isocyanate, with the composition being suitable for the preparation of a powder paint. The thus produced polyester resin composition can be finely pulverized with ease, shows no blocking property, facilitates pigmentation and provides beautiful coatings excellent in weather resistance, solvent resistance, humidity resistance, antifouling property, and with intimate adhesiveness to metal.

摘要翻译： 通过将主要包含对苯二甲酸单元，对羟基苯甲酸单元和乙二醇单元的平均聚合度为约5至50的熔融聚酯与一种选自以下的固化剂混合而获得的聚酯树脂组合物： 二缩水甘油基化合物，六烷氧基甲基三聚氰胺或其缩合物，和封端的异氰酸酯，该组合物适用于制备粉末涂料。 这样制造的聚酯树脂组合物可以容易地微细粉碎，不显示阻塞性，促进着色，并且提供耐候性，耐溶剂性，耐湿性，防污性和与金属的密合性优异的美丽涂层。