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1. 发明授权

US4985519A Fluorine-containing copolymer useful as paint vehicle 失效
标题翻译：含氟共聚物可用作涂料载体
公开(公告)号：US4985519A
公开(公告)日：1991-01-15
申请号：US406093
申请日：1989-09-12
申请人： Toshio Koishi , Mikio Ootani , Seichi Katsuragawa , Hideaki Sueta
发明人： Toshio Koishi , Mikio Ootani , Seichi Katsuragawa , Hideaki Sueta
IPC分类号： C08F214/18 , C08F218/04
CPC分类号： C08F214/188 , C08F218/04
摘要： The invention provides a novel copolymer comprising 25-75 mol % of a fluoroolefin such as CTFE, 10-80 mol % of a combination of a fatty acid vinyl ester having not more than 4 carbon atoms in the acid part and at least one other carboxylic acid vinyl ester which has a larger number of carbon atoms and is selected from aliphatic and aromatic carboxylic acid vinyl esters, 3-40 mol % of a hydroxyl-containing allyl ether such as ethylene glycol monoallyl ether and 0-20 mol % of a carboxyl-containing monomer such as vinylacetic acid. The copolymer has a number average molecular weight of 3000 to 10000. This copolymer possesses favorable properties characteristic of fluororesins, is soluble in organic solvents including aromatic solvents low in polarity, such as xylene, and is curable at relatively low temperatures. A solution of this copolymer is useful as a liquid vehicle of a paint. Optionally, a portion of the vinyl ester component of the copolymer is replaced by an alkyl vinyl ether to enhance pliability of paint films using the copolymer.
摘要翻译：本发明提供了一种新型共聚物，其包含25-75mol％的氟烯烃如CTFE，10-80mol％在酸部分中具有不超过4个碳原子的脂肪酸乙烯酯的组合和至少一种其它羧酸酸性乙烯基酯，其具有较大数量的碳原子，并且选自脂族和芳族羧酸乙烯基酯，3-40摩尔％的含羟基的烯丙基醚如乙二醇单烯丙基醚和0-20摩尔％的羧基乙烯基乙酸等单体。共聚物的数均分子量为3000〜10000。该共聚物具有氟树脂的有利特性，可溶于包括极性低的芳族溶剂在二甲苯等有机溶剂中，可在较低温度下固化。该共聚物的溶液可用作涂料的液体载体。任选地，一部分共聚物的乙烯基酯组分被烷基乙烯基醚代替以增强使用该共聚物的漆膜的柔韧性。

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