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。

公开(公告)号：US4087479A

公开(公告)日：1978-05-02

申请号：US718275

申请日：1976-08-27

申请人： Yoshiho Toyota ,  Singo Sasaki ,  Katsuyoshi Atsumi ,  Akio Nakagi

发明人： Yoshiho Toyota ,  Singo Sasaki ,  Katsuyoshi Atsumi ,  Akio Nakagi

IPC分类号： C09D5/03 ,  C08G59/00 ,  C08G63/00 ,  C08G63/91 ,  C08L63/00 ,  C08L67/00 ,  C09D5/46 ,  C09D163/00 ,  C09D167/00

CPC分类号： C08L67/00 ,  C09D163/00 ,  C09D167/00 ,  Y10T428/31511

摘要： A heat-curable resin composition obtained by mixing (A) a polyester resulting from the depolymerization of a polyester of a high degree of polymerization comprising an aromatic dicarboxylic acid and an aliphatic dialcohol using a compound containing about 2 to about 12 carboxyl groups per molecule with (B) a polyoxirane compound containing about 2 to about 100 oxirane groups per molecule. A heat-curable resin composition obtained by adding to the above resin composition a salt formed between an aliphatic monocarboxylic acid containing 2 to 20 carbon atoms and an element of Group II of the Periodic Table as a curing accelerator is an especially superior material for powder paints. Powder paints prepared from these heat-curable resin compositions provide coatings having superior appearance and properties upon baking after coating by a method such as an electrostatic spray coating method or a fluidized dip coating method.

摘要翻译： 一种热固性树脂组合物，其通过将每分子含有约2〜约12个羧基的化合物（A）由包含芳族二羧酸和脂肪族二醇的高聚合度的聚酯的解聚得到的聚酯混合而获得， （B）每分子含有约2至约100个环氧乙烷基团的多环氧乙烷化合物。 通过向上述树脂组合物中添加形成于碳原子数2〜20的脂肪族一元羧酸与元素周期表II的元素之间的盐作为固化促进剂而得到的热固性树脂组合物，是特别优选的粉末涂料 。 由这些热固性树脂组合物制备的粉末涂料通过静电喷涂法或流化浸涂法等方法涂布后，提供具有优异的外观和性能的涂料。

公开(公告)号：US5075418A

公开(公告)日：1991-12-24

申请号：US379137

申请日：1989-07-13

申请人： Jun-ichi Suenaga ,  Hisayuki Naito ,  Singo Sasaki

发明人： Jun-ichi Suenaga ,  Hisayuki Naito ,  Singo Sasaki

IPC分类号： C08G63/06 ,  C08G63/60 ,  C08G63/78

CPC分类号： C08G63/60

摘要： A thermotropic liquid crystal polyester consisting essentially of ethylene glycol residue, terephthalic acid residue and parahydroxybenzoic acid residue wherein the mol ratio of ethylene glycol residue to terephthalic acid residue is substantially about 1:1 and the mol ratio of terephthalic acid residue to parahydroxybenzoic acid residue is in the range of about 5:95 to about 25:75, the polyester having an intrinsic viscosity of at least about 0.5 dl/g measured in a 50:50 by weight solvent mixture of phenol and 1,1,2,2-tetrachlorethane at 20.degree. C., and a transmittance of at least about 80% to 530 nm light at a light path length of said solvent mixture. A method for forming the thermotropic liquid crystal polyester is also disclosed.

摘要翻译： 基本上由乙二醇残基，对苯二甲酸残基和对羟基苯甲酸残基组成的热致液晶聚酯，其中乙二醇残基与对苯二甲酸残基的摩尔比基本上为约1:1，对苯二甲酸残基与对羟基苯甲酸残基的摩尔比为 在约5:95至约25:75的范围内，在50:50的苯酚和1,1,2,2-四氯乙烷的溶剂混合物中测量的特性粘度为至少约0.5dl / g的聚酯 并且在所述溶剂混合物的光路长度处具有至少约80％至530nm光的透射率。 还公开了形成热致液晶聚酯的方法。

公开(公告)号：US4892926A

公开(公告)日：1990-01-09

申请号：US175795

申请日：1988-03-31

申请人： Jun-ichi Suenaga ,  Hisayuki Naito ,  Singo Sasaki

发明人： Jun-ichi Suenaga ,  Hisayuki Naito ,  Singo Sasaki

IPC分类号： C08G63/06 ,  C08G63/60 ,  C08G63/78

CPC分类号： C08G63/60

摘要： A thermotropic liquid crystal polyester consisting essentially of ethylene glycol residue, terephthalic acid residue and parahydroxybenzoic acid residue wherein the mol ratio of ethylene glycol residue to terephthalic acid residue is substantially about 1:1 and the mol ratio of terephthalic acid residue to parahydroxybenzoic acid residue is in the range of about 5:95 to about 25:75, the polyester having an intrinsic viscosity of at least about 0.5 dl/g measured in a 50:50 by weight solvent mixture of phenol and 1,1,2,2-tetrachlorethane at 20.degree. C., and a transmittance of at least about 80% to 530 nm light at a light path length of 10 mm measured using a 0.4 wt. % solution of the polyester in said solvent mixture. A method for forming the thermotropic liquid crystal polyester is also disclosed. The liquid crystal polyester of the present invention is useful for injection molding applications and various extrusion molding purposes, such as the manufacture of films, sheets, fibers, pipes, etc.