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公开(公告)号：US20190225755A1
公开(公告)日：2019-07-25
申请号：US16226149
申请日：2018-12-19
申请人： SKC CO., LTD.
发明人： Jongmin SHIM , Jung Hwan MYUNG , Seung Mo HONG , Hyuk Hee HAN , Junghwan SHIN , Hyeon Myeong SEO
CPC分类号： C08G75/04 , C08G18/248 , C08G18/3876 , C08G18/73 , C08G18/7621 , C08G18/7642 , C08K5/005 , C08K5/37 , C08K2201/014 , G02B1/041 , C08L75/04 , C08L81/00
摘要： Embodiments relate to a polythiol composition for a plastic optical lens and a polythiourethane-based plastic optical lens prepared therefrom. In the embodiments, a first polythiol compound having mercapto groups only as a hydrogen-bondable functional group and a second polythiol compound having mercapto groups as a hydrogen-bondable functional group and a hydrogen-bondable functional group other than a mercapto group are used in an appropriate amount. Thus, not only is it possible to control the viscosity of a polymerizable composition at the initial stage of polymerization at a low temperature of 5 to 15° C. and to stabilize the rate of increase in the viscosity of the composition and the reaction rate thereof, but also the change in the viscosity at a low temperature is low, thereby preventing the generation of striae, bubbles, and the like. Further, various plastic lenses such as eyeglass lenses, camera lenses, and the like having excellent appearance characteristics (without striae and bubbles) and excellent optical characteristics can be obtained from the composition.
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公开(公告)号：US3073802A
公开(公告)日：1963-01-15
申请号：US84787859
申请日：1959-10-22
申请人： BAYER AG , MOBAY CHEMICAL CORP
发明人： ERWIN WINDEMUTH , HERMANN SCHNELL , OTTO BAYER
CPC分类号： C08G18/4833 , C08G18/248 , Y10S528/904 , Y10S528/906
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3.发明申请公开(公告)号：US20150299373A1
公开(公告)日：2015-10-22
申请号：US14437870
申请日：2013-10-23
CPC分类号： C08G18/248 , C08G18/341 , C08G18/42 , C08G18/4216 , C08G18/4241 , C08G18/7657 , C08G63/16 , C08G2101/0008
摘要： The present invention relates to a process for the production of flexible polyurethane foams, wherein there is used as starting material a polyester polyol component which is composed of at least two dicarboxylic acids.
摘要翻译： 本发明涉及一种生产软质聚氨酯泡沫的方法，其中使用由至少两种二羧酸组成的聚酯多元醇组分作为起始原料。
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公开(公告)号：US4814515A
公开(公告)日：1989-03-21
申请号：US52222
申请日：1987-05-18
IPC分类号： C07C43/13 , C07C41/00 , C07C43/11 , C07C67/00 , C08G18/24 , C08G18/42 , C08G18/46 , C08G18/48 , C08G18/50 , C08G65/30 , C08J9/02 , C08J9/04
摘要： A method of manufacturing a modified polyhydroxy compound, which is characterized in that a polyhydroxy compound is heated for 30 minutes or more at a temperature ranging from 150.degree. to 250.degree. C. under stirring and in the presence of tin, tin compounds such as tin halogenide, tin hydroxide and tin oxide. The polyhydroxy compound modified by this method is effective in improving the foamability and mechanical strength of urethane foam, when it is used as a raw material in the manufacture of urethane foam.
摘要翻译： 一种改性多羟基化合物的制造方法，其特征在于，在搅拌下，在锡，锡化合物如锡的存在下，将多羟基化合物在150-250℃的温度下加热30分钟以上 卤化物，氢氧化锡和氧化锡。 通过该方法改性的多羟基化合物在用作制造聚氨酯泡沫塑料中的原料时，有效地提高了聚氨酯泡沫的发泡性和机械强度。
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公开(公告)号：US20190233571A1
公开(公告)日：2019-08-01
申请号：US16312315
申请日：2017-06-08
申请人： Evonik Degussa GmbH
IPC分类号： C08G18/09 , C08G18/08 , C08G18/61 , C08G18/42 , C08G18/18 , C08G18/24 , C08G18/76 , C08K5/02
CPC分类号： C08G18/092 , C08G18/14 , C08G18/163 , C08G18/1808 , C08G18/225 , C08G18/248 , C08G18/4208 , C08G18/61 , C08G18/7664 , C08G77/46 , C08G2101/0025 , C08G2101/0041 , C08G2101/005 , C08G2101/0058 , C08G2101/0083 , C08G2105/02 , C08J9/0061 , C08J9/141 , C08J9/144 , C08J2201/022 , C08J2203/14 , C08J2203/162 , C08J2205/10 , C08J2207/00 , C08J2207/04 , C08J2375/04 , C08J2483/12 , C08K5/02 , C08K5/49 , C08L83/12 , C08L75/04
摘要： A process for producing polyurethane foam by reacting at least one polyol component with at least one isocyanate component in the presence of at least one blowing agent and of one or more catalysts that catalyze the isocyanate-polyol and/or isocyanate-water reactions and/or the isocyanate trimerization, wherein the reaction is conducted in the presence of selected polyether-siloxane copolymers, is described.
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公开(公告)号：US20180009931A1
公开(公告)日：2018-01-11
申请号：US15543075
申请日：2016-01-13
CPC分类号： C08G18/24 , C08G18/248 , C08G18/48 , C08G18/4829 , C08G18/722 , C08G18/725 , C08G18/755 , C08G18/7831 , C08K5/521 , G02B1/04 , G02B1/041 , C08L75/04
摘要： A composition comprising an isocyanate component A) comprising at least one cycloaliphatic or araliphatic diisocyanate, a polyol component B) comprising at least one polyol having an OH number of 80 to 1000 mg KOH/g, an additive component C) comprising at least one internal demoulding agent, and a catalyst component D) comprising at least one inorganic metal complex as thermally latent catalyst, characterized in that the thermally latent catalyst has a quotient of reaction rates between catalysed reaction and uncatalysed reaction at 30° C. of =5.0 and at 60° C. of =1.1. The present invention further provides a process for producing an elastomer and for the use of the composition for production of transparent shaped bodies.
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公开(公告)号：US20150166717A1
公开(公告)日：2015-06-18
申请号：US14108865
申请日：2013-12-17
CPC分类号： C08G18/72 , C08G18/10 , C08G18/227 , C08G18/244 , C08G18/248 , C08G18/324 , C08G18/3857 , C08G18/3868 , C08G18/4277 , C08G18/758 , C08L75/02 , C08G18/42
摘要： This invention relates to polyurethane/polyureas with improved catalysis and to a process for the preparation of these polyurethane/polyureas. These materials comprise the reaction product of (A) a (cyclo)aliphatic polyisocyanate or (cyclo)aliphatic polyisocyanate prepolymer, with (B) an isocyanate-reactive component comprising at least one aromatic diamine compound containing from 1 to 8 thiomethyl groups, in the presence of (C) one or more catalysts selected from the group consisting of tin (II) catalysts, bismuth (III) catalysts and mixtures thereof. Preferably, the materials are optically clear.
摘要翻译： 本发明涉及具有改进催化作用的聚氨酯/聚脲和制备这些聚氨酯/聚脲的方法。 这些材料包含（A）（环）脂族多异氰酸酯或（环）脂族多异氰酸酯预聚物与（B）含有至少一个含有1至8个硫代甲基的芳族二胺化合物的异氰酸酯反应性组分的反应产物， （C）一种或多种选自锡（II）催化剂，铋（III）催化剂及其混合物的催化剂的存在。 优选地，材料是光学透明的。
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