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公开(公告)号：US5264501A
公开(公告)日：1993-11-23
申请号：US743463
申请日：1991-08-09
IPC分类号： C07C211/36 , C08G59/50
CPC分类号： C08G59/5026 , C07C211/36 , C07C2101/14
摘要： This invention pertains to alkyl substituted bi(cyclohexylamine) and derivatives having a high trans,trans-isomer distribution. This isomer distribution represents a thermodynamic mixture of the isomers and provides for extended pot life and extended thermal properties in epoxy resins which are not seen with the kinetic isomer mixture. The bridged cyclohexylamine and derivatives are represented by the formula: ##STR1## wherein; R.sup.1 is hydrogen or C.sub.1-4 alkyl;R.sup.2 is C.sub.1-4 alkyl; andR.sup.3 is hydrogen or C.sub.1-4 alkylThe invention also relates to epoxy resins cured with the bridged bi(cyclohexylamines).
摘要翻译： 本发明涉及烷基取代的双（环己胺）和具有高反式，反式异构体分布的衍生物。 这种异构体分布表示异构体的热力学混合物，并且提供了在动力学异构体混合物中未见的环氧树脂中的延长的适用期和延长的热性能。 桥连环己胺及其衍生物由下式表示：其中： R1是氢或C1-4烷基; R2是C1-4烷基; 并且R 3是氢或C 1-4烷基本发明还涉及用桥连双（环己胺）固化的环氧树脂。
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公开(公告)号：US5071809A
公开(公告)日：1991-12-10
申请号：US519711
申请日：1990-05-07
IPC分类号： C07C217/08 , C07D295/088 , C08G18/18 , C08G18/20
CPC分类号： C07D295/088 , C07C217/08 , C08G18/1825 , C08G18/1833 , C08G18/2009
摘要： The invention pertains to tertiary amines used as catalysts for the preparation of polyurethane foams prepared via the catalytic reaction of a polyisocyanate with a polyol in the presence of blowing agents, etc. The tertiary amine catalysts are prepared by reacting an olefinic nitrile with aliphatic polyol having at least secondary hydroxyl functionality in a ratio less than stoichiometric for providing cyanoalkylated polyol having residual hydroxyl functionality. The resulting cyanoalkylated polyol then is reacted with a secondary amine under conditions for effective reductive alkylation.The tertiary amine catalysts, because of residual secondary hydroxyl functionality, provide for uniform dispersion within a polyurethane formulation; they provide for additional or extended pot life in polyurethane formulations at temperatures below reaction condition, and they are bound by reaction on cure.
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公开(公告)号：US4946925A
公开(公告)日：1990-08-07
申请号：US444492
申请日：1989-12-01
IPC分类号： C07C211/36 , C08G59/50
CPC分类号： C08G59/5026 , C07C211/36 , C07C2101/14
摘要： This invention relates to bridged cyclohexylamines represented by the formula: ##STR1## A is C.sub.0, --CH.sub.2 --, ##STR2## R.sub.1 is C.sub.1-3 alkyl R.sub.2 is C.sub.1-6 alkylR.sub.3 is C.sub.1 or C.sub.2 alkylR.sub.4 is H or C.sub.1-4 alkylx is 0 or 1y is 0 or 1These bridged bis(cyclohexylamine) derivatives are well suited as curing agents for epoxy resins. These compositions lead to enhanced processing of the epoxy resin and permit adjustment of the reactivity/performance in formulating epoxies which demonstrate superior high temperature properties.
摘要翻译： 本发明涉及由下式表示的桥连环己胺：A为C 0，-CH 2 - ，R 1为C 1-3烷基R 2为C 1-6烷基R 3为C 1或C 2烷基R 4为H或C 1-4 烷基x为0或1 y为0或1这些桥连双（环己胺）衍生物非常适合用作环氧树脂的固化剂。 这些组合物导致环氧树脂的加工增强，并且允许调节表现出优异的高温性能的环氧树脂的反应性/性能。
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公开(公告)号：US4908394A
公开(公告)日：1990-03-13
申请号：US267217
申请日：1988-11-04
申请人： Jeremiah P. Casey , Susan M. Clift
发明人： Jeremiah P. Casey , Susan M. Clift
CPC分类号： C08G18/325 , C08G18/1825
摘要： The present invention relates to a process for the production of polyurethanes wherein a tertiary amine functionality is incorporated into the side chain of a diaminobenzoate to form catalytic polyurethane chain extender. These chain extenders are polyurethane catalysts which provide adequate cure without residual odor and safety hazards associated with the more traditional tertiary amine catalysts. When reacted with the isocyanate reactive group the non-tertiary amine portion of the chain extender is bound to the polymeric network thereby preventing diffusion of the catalyst species from the polyurethane and negating odor and toxicity as problems. The diaminobenzoate provides enhanced polyurethane physical properties.
摘要翻译： 本发明涉及生产聚氨酯的方法，其中叔胺官能团被引入到二氨基苯甲酸酯的侧链中以形成催化聚氨酯增链剂。 这些增链剂是提供足够固化而不具有与更传统的叔胺催化剂相关的残留气味和安全危害的聚氨酯催化剂。 当与异氰酸酯反应性基团反应时，扩链剂的非叔胺部分结合到聚合物网络，从而防止催化剂物质从聚氨酯扩散，并且作为问题消除气味和毒性。 二氨基苯甲酸酯提供增强的聚氨酯物理性能。
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公开(公告)号：US3994802A
公开(公告)日：1976-11-30
申请号：US568712
申请日：1975-04-16
摘要： A multistage treatment is disclosed for the removal of carbonaceous BOD and nitrogenous pollutants from wastewaters, wherein the influent wastewater undergoes successive nitrification-denitrification in the presence of recycled activated sludge containing a mixed culture biomass comprising heterotrophic and autotrophic organisms. The initial mixing of the wastewater with recycled sludge is effected in the presence of sufficient oxygen to maintain oxic conditions. The mixed liquor from the initial oxic treatment, without intermediate separation of solids, is passed to an anoxic stage wherein nitrites and nitrates (NO.sub.x .sup.-, x = 2,3) formed by oxidation of ammonium compounds are reduced to nitrogen gas. Any number of oxic treating stages each followed by an anoxic stage may be employed. The final treating stage prior to solids separation from the mixed liquor may be either oxic or anoxic. The separated solids constitute the activated sludge recycled to at least the initial mixing stage. A short residence time, resulting in a high food to biomass ratio, is maintained in the initial oxic stage or the first subsection thereof, in order to avoid sludge bulking and to promote an active dense biomass.
摘要翻译： 公开了用于从废水中去除碳质BOD和含氮污染物的多级处理，其中在含有包含异养和自养生物体的混合培养生物质的再循环活性污泥的存在下，进水废水经历连续的硝化 - 脱氮。 废水与循环污泥的初始混合是在有足够氧气的情况下进行的，以保持氧气条件。 来自初始氧化处理的混合液体，没有固体的中间分离，被传递到缺氧阶段，其中通过铵化合物的氧化形成的亚硝酸盐和硝酸盐（NO x - ，x = 2,3）被还原成氮气。 可以使用任何数量的氧治疗阶段，每个后续是缺氧阶段。 固体分离混合液之前的最后处理阶段可以是含氧还是缺氧。 分离的固体构成再循环至至少初始混合阶段的活性污泥。 为了避免污泥膨胀和促进活性致密的生物质，在最初的氧化阶段或其第一阶段中保持了较高的食物与生物质比例的停留时间。
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公开(公告)号：US5066764A
公开(公告)日：1991-11-19
申请号：US543899
申请日：1990-06-26
IPC分类号： C07C211/36 , C08G18/32 , C08G59/50
CPC分类号： C08G18/3234 , C07C211/36 , C08G59/5026 , C07C2101/14
摘要： This invention relates to ditertiary-butyl substituted bridged di(cyclohexylamines) where the tert-butyl substituent is alpha to the amine group and to polyepoxide formulations incorporating the di(cyclohexylamine). The formula of the diamine is: ##STR1## wherein R is tert-butyl. The di(tertiary butyl)methylene bridged cyclohexylamines have delayed reactivity when incorporated in epoxy resins and they also enhance physical properties in high resilience polyurethane foams.
摘要翻译： 本发明涉及二叔丁基取代的桥连二（环己基胺），其中叔丁基取代基是胺基的α和与二（环己胺）结合的聚环氧化物制剂。 二胺的配方是：其中R是叔丁基。 二（叔丁基）亚甲基桥联的环己胺在掺入环氧树脂中时具有延迟的反应性，并且还增强了高弹性聚氨酯泡沫中的物理性能。
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17.发明授权Hydrogenation of methylenedianiline to produce bis(para-aminocyclohexyl)methane 失效亚甲基二苯胺的氢化生成双（对氨基环己基）甲烷
公开(公告)号：US4946998A
公开(公告)日：1990-08-07
申请号：US154662
申请日：1988-02-10
IPC分类号： C07B61/00 , B01J23/00 , B01J23/46 , C07C65/24 , C07C67/00 , C07C209/00 , C07C209/68 , C07C209/72 , C07C211/36 , C07C211/37 , C07C211/54
CPC分类号： C07C209/72 , C07C2101/14
摘要： This invention relates to an improved hydrogenation process wherein methylenedianiline is reduced to form bis(para-aminocyclohexyl)methane (PACM). The process contemplates contacting methylenedianiline and hydrogen in the presence of a two component metal catalyst comprising rhodium and ruthenium under mild hydrogenation conditions. Use of the mixed metal catalyst system allows one to obtain a preselected isomer ratio having from about 5-40% by weight, typically 14`28% by weight of the trans,trans- configurational isomer.
摘要翻译： 本发明涉及一种改进的氢化方法，其中亚甲基二苯胺被还原形成双（对 - 氨基环己基）甲烷（PACM）。 该方法考虑在温和氢化条件下，在包含铑和钌的双组分金属催化剂的存在下使亚甲基二苯胺和氢气接触。 使用混合金属催化剂体系允许获得具有反式，反式构型异构体的约5-40重量％，通常为14.28重量％的预选异构体比例。
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公开(公告)号：US4683279A
公开(公告)日：1987-07-28
申请号：US882994
申请日：1986-07-08
IPC分类号： C08G18/76 , C07C67/00 , C07C239/00 , C07C271/28 , C08G18/80 , C08G18/81
CPC分类号： C08G18/8019 , C08G18/815 , C08G2120/00
摘要： This invention relates to urethane linked mixtures of 2,4- and 2,6-toluenediisocyanates (ULTDI dimers) having low melting points and to a method of forming these systems. The urethane linked toluenediisocyanates containing from 45-90% of the 2,4- and 10-55% of the 2,6- isomer by weight are formed by reacting two moles of an appropriate isomer mix of toluenediisocyanate, with one mole of a specific alkylene glycol, e.g., 1,2-butanediol, diethylene glycol or dipropylene glycol under conditions such that essentially only one of the isocyanate groups on a toluenediisocyanate molecule reacts with a hydroxyl group of the glycol. Conditions are controlled such that the urethane linked toluenediisocyanates are formed. The resulting product, which has two unreacted isocyanate groups, is suited for producing a variety of elastomers including polyurethane polyurethane/urea or polyurea elastomers.
摘要翻译： 本发明涉及具有低熔点的2,4-和2,6-甲苯二异氰酸酯（ULTDI二聚体）与形成这些体系的方法的氨基甲酸酯连接的混合物。 含有45-90％的2,4-和10-55％的2,6-异构体的氨基甲酸酯连接的甲苯二异氰酸酯是通过使两摩尔的甲苯二异氰酸酯的合适异构体混合物与1摩尔特定的 亚烷基二醇，例如1,2-丁二醇，二甘醇或二丙二醇，在甲苯二异氰酸酯分子上基本上只有一个异氰酸酯基与二醇的羟基反应的条件下进行。 控制条件使得形成氨基甲酸酯连接的甲苯二异氰酸酯。 得到的具有两个未反应的异氰酸酯基的产物适用于生产各种弹性体，包括聚氨酯聚氨酯/脲或聚脲弹性体。
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公开(公告)号：US5175230A
公开(公告)日：1992-12-29
申请号：US859210
申请日：1992-03-27
IPC分类号： C08G18/75
CPC分类号： C08G18/758
摘要： This invention pertains to alkyl substituted difunctional cyclohexylisocyanates having an isomer distribution. The isocyanates are represented by the formulas: ##STR1## wherein; R.sup.1 is C.sub.1-4 alkyl; R.sup.2 is C.sub.1-4 alkyl andn is 0 or 2.The invention also relates to polyurethane and polyurethane/urea resins prepared using the alkyl substituted difunctional cyclohexylisocyanates as at least a portion of the polyisocyanate used in forming the polyurethane.
摘要翻译： 本发明涉及具有异构体分布的烷基取代的二官能环己基异氰酸酯。 异氰酸酯由下式表示：其中： R1是C1-4烷基; R2是C1-4烷基，n是0或2.本发明还涉及使用烷基取代的二官能环己基异氰酸酯作为用于形成聚氨酯的多异氰酸酯的至少一部分制备的聚氨酯和聚氨酯/脲树脂。
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公开(公告)号：US4937306A
公开(公告)日：1990-06-26
申请号：US266463
申请日：1988-11-02
CPC分类号： C08G18/3825 , C08G18/1825 , C08G18/1841 , C08G18/3246 , C08G18/325
摘要： The present invention relates to a process for the production of polyurethanes wherein a tertiary amine functionality is incorporated into the side chain of an aromatic diamine, preferably a diaminobenzamide, to form a catalytic polyurethane chain extender. These chain extenders are polyurethane catalysts that provide adequate cure without residual odor and safety hazards associated with the more traditional tertiary amine catalysts. When reacted with the isocyanate reactive group the non-tertiary amine portion of the chain extender is bound to the polymeric network. Diffusion of the catalyst species from the polyurethane has been prevented, thus negating odor and toxicity as problems. The aromatic diamine provides enhanced polyurethane physical properties.
摘要翻译： 本发明涉及一种生产聚氨酯的方法，其中叔胺官能团被并入芳族二胺的侧链，优选二氨基苯甲酰胺，以形成催化聚氨酯增链剂。 这些增链剂是聚氨酯催化剂，其提供足够的固化而没有残留的气味和与更传统的叔胺催化剂相关的安全危害。 当与异氰酸酯反应性基团反应时，扩链剂的非叔胺部分与聚合物网络结合。 已经防止了催化剂种类从聚氨酯的扩散，因此不利于气味和毒性作为问题。 芳族二胺提供增强的聚氨酯物理性能。
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