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1.发明授权Linear homopolyesters and copolyesters based on methylene-bis(hydroxyalkyldimethyl hydantoins) 失效基于甲基双（乙氧基甲基羟乙基）的线性共聚物和共聚物
公开(公告)号：US3856754A
公开(公告)日：1974-12-24
申请号：US38706073
申请日：1973-08-09
申请人： CIBA GEIGY CORP
发明人： HABERMEIER J , BUXBAUM L , BATZER H
IPC分类号： C08L67/00 , C08G20060101 , C08G63/00 , C08G63/16 , C08G63/685 , C08G63/80 , C08G17/08
CPC分类号： C08G63/6856 , C08G63/80
摘要： New homopolyesters and copolyesters are obtained by esterifying 1,1''-methylene-bis-(3-(hydroxy-alkyl)-5,5-dimethylhydantoins) and optionally alkanediols with terephthalic acid and/or isophthalic acid or their polyester-forming derivatives in a known manner, and subsequently polycondensing. The new homopolyesters and copolyesters are distinguished, relative to the conventional polyalkylene phthalates, by having better mechanical properties, and are in particular suitable for use as ''''Engineering Plastic'''' materials.
摘要翻译： 通过将1,1'-亚甲基 - 双[3-（羟基 - 烷基）-5,5-二甲基乙内酰脲]和任选的烷二醇与对苯二甲酸和/或间苯二甲酸或其聚酯形成衍生物酯化，得到新的均聚酯和共聚酯 已知方式，随后进行缩聚。 通过具有更好的机械性能，相对于传统的聚邻苯二甲酸亚烷基酯，新的均聚酯和共聚酯的特征是特别适合用作“工程塑料”材料。
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2.发明授权New thermosetting mixtures of polyisocyanates,weakly branched polyesters and polyoles 失效聚异氰酸酯，弱分散聚酯和聚烯烃的新型热固化混合物
公开(公告)号：US3821165A
公开(公告)日：1974-06-28
申请号：US25652772
申请日：1972-05-24
申请人： CIBA GEIGY CORP
CPC分类号： C08G18/6644 , C08G18/3221 , C08G18/4202
摘要： Heat-curable plasticised mixtures for the manufacture of moulding materials based on polyurethanes, containing (a) a polyisocyanate, (b) a slightly branched polyester possessing terminal hydroxyl groups and (c) a defined aromatic polycarboxylic acid hydroxyester containing at least one secondary hydroxyl group (for example a hydroxyester manufactured by reacting 1 mol of trimellitic anhydride and 1 mol of 1,2propanediol in a first stage, and further reaction with 2 mols of cresylglycid), with the mixture containing, per 1 equivalent of isocyanate group, 0.05 to 0.3 hydroxyl equivalents of the polyester (b) and 0.3 to 1.0 hydroxyl equivalents of the aromatic polycarboxylic acid hydroxyester (c). The mouldings obtained by hot curing of the moulding compositions are flexible, tough and impact-resistant, and these mechanical properties are largely independent of temperature; a transition to the soft rubberyelastic state only occurs above 150*C.
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