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    Thermosetting compositions of carboxyl terminated polyesters and diglycidyl ethers
    6.
    发明授权
    Thermosetting compositions of carboxyl terminated polyesters and diglycidyl ethers 失效
    羧基封端的聚酯和二缩水甘油醚的热固性组合物

    公开(公告)号：US3278636A

    公开(公告)日：1966-10-11

    申请号：US3756760

    申请日：1960-06-21

    申请人： UNION CARBIDE CORP

    发明人： JOHN WYNSTRA

    IPC分类号： C08G63/20 ,  C08L63/00 ,  C08L63/02 ,  C09J167/00

    CPC分类号： C08L63/00 ,  C08G63/20 ,  C09J167/00 ,  C08L2666/18

    摘要： A thermosetting composition comprises a carboxyl terminated polyester having a carboxyl functionality greater than 2 and being the reaction product of a dicarboxylic aliphatic acid, a dihydric aliphatic alcohol and a tricarboxylic aliphatic acid or a trihydric aliphatic alcohol; and a liquid diglycidyl ether of a dihydric phenol, the thermosetting composition containing from 0,8 to 1,2 equivalents of polyester per equivalent of diglycidyl ether. Many acids and alcohols are specified. Specified diglycidyl ethers are the reaction products of epichlorhydrin with hydroquinone, resorcinol, catechol, bis-(p-hydroxyphenyl) methane, 1:1-bis-(p-hydroxyphenyl) ethane, 2:2-bis-(p-hydroxyphenyl) propane, 2:2-bis-(p-hydroxyphenyl) butane, methyl resorcinol and tribromo resorcinol. Catalysts, e.g. p-, s- and t-amines, alkali metal hydroxides and phenoxides, alkali metal salts of fatty acids and quaternary ammonium compounds of which many are specified may be present in the composition. In the examples:- polyesters are made from (1) and (2) diethylene glycol, glycerol and adipic acid and (3) diethylene glycol, glycerol and a polymerized soya acid and heated with the diglycidyl ether of 2:2-bis-(p-hydroxyphenyl) propane in the presence of benzyl dimethylamine.