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1.发明授权
公开(公告)号：US4436843A
公开(公告)日：1984-03-13
申请号：US450590
申请日：1982-12-17
CPC分类号： C08G18/5021 , C08G18/4072 , C08G2101/0008 , C08G2101/005 , C08G2101/0083 , Y10S521/904 , Y10S521/914
摘要： High-resilience polyurethane foams made from polyols which are alkylene oxide adducts of alkylenediamines have been found to have surprisingly improved resistance to shrinkage. These foams have particular utility as seating support because they can be molded with good processing characteristics yet contain open cells and resist shrinkage. It is preferred that the polyols used be based on ethylenediamine.
摘要翻译： 发现由亚烷基二胺的环氧烷加成物制成的高弹性聚氨酯泡沫体具有令人惊奇的改善的耐收缩性。 这些泡沫具有作为座椅支撑的特殊用途，因为它们可以被模制成具有良好的加工特性，同时包含开孔并且抵抗收缩。 所使用的多元醇优选基于乙二胺。
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公开(公告)号：US4239856A
公开(公告)日：1980-12-16
申请号：US937303
申请日：1978-08-28
申请人： Richard L. Rowton
发明人： Richard L. Rowton
CPC分类号： C08G18/6688 , C08G18/7671 , C08G2101/0008 , C08G2101/005 , C08G2101/0058 , C08G2101/0083 , Y10S521/904
摘要： A stable high-resilient (HR) flexible polyurethane foam may be made from an MDI type isocyanate, a polyether polyol and an amount of diethanolamine in an amount effective for preventing splits in the finished foam. The foams disclosed herein use water as the blowing agent. The disclosed foams have excellent properties and process without splitting.
摘要翻译： 稳定的高弹性（HR）柔性聚氨酯泡沫可以由MDI型异氰酸酯，聚醚多元醇和一定量的二乙醇胺制成，其数量有效地防止在成品泡沫中分裂。 本文公开的泡沫使用水作为发泡剂。 所公开的泡沫具有优异的性能和工艺而不分裂。
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公开(公告)号：US4721781A
公开(公告)日：1988-01-26
申请号：US571768
申请日：1984-01-18
申请人： Richard L. Rowton
发明人： Richard L. Rowton
CPC分类号： C08B31/00 , C08G18/4883
摘要： A method for lowering the reducing sugar content of glycoside compositions by adding 1 to 10 wt. % of an orthoformic ester or an acetal of a low-boiling ketone is described. Reducing sugar contents can be lowered from 1 to 3 wt. % to 0.05 to 0.3 wt. % using compounds such as trimethyl orthoformate, triethyl orthoformate and 2,2-dimethoxypropane. Glycoside compositions particularly useful in this method are those formed by the catalytic reaction of starch hydrolysates with low molecular weight polyols. Such glycoside compositions are useful to make high molecular weight polyols having low color suitable for incorporation into polyurethane foams.
摘要翻译： 通过添加1〜10重量％的降低糖苷组合物的还原糖含量的方法。 描述了低沸点酮的正构酯或缩醛的％。 降低糖含量可以从1降低到3重量％。 ％〜0.05〜0.3重量％ ％使用化合物如原甲酸三甲酯，原甲酸三乙酯和2,2-二甲氧基丙烷。 在该方法中特别有用的糖苷组合物是通过淀粉水解物与低分子量多元醇的催化反应形成的那些。 这样的糖苷组合物可用于制备适于掺入聚氨酯泡沫的低颜色的高分子量多元醇。
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