-
公开(公告)号：US4469823A
公开(公告)日：1984-09-04
申请号：US518171
申请日：1983-07-28
CPC分类号： C08G18/4009 , C08G18/4216 , C08G2101/0008 , C08G2101/005 , C08G2101/0083
摘要： A method for producing a flexible polyurethane foam from reacting a polyol blend with a polyisocyanate in the presence of a polyurethane formation catalyst is described. The polyol blend contains from 0.5 to 10 wt. % of an aromatic polyester polyol extender typically used in rigid foams. The polyol extender is made from dibasic acids, alkylene glycols and recycled polyethylene terephthalate. Commercial extenders cause flexible foams to shrink, a problem not found in the foams of this invention.
摘要翻译： 描述了在聚氨酯形成催化剂存在下使多元醇共混物与多异氰酸酯反应制备柔性聚氨酯泡沫的方法。 多元醇共混物含有0.5至10wt。 通常用于硬质泡沫的芳族聚酯多元醇增量剂的％。 多元醇增量剂由二元酸，亚烷基二醇和再生聚对苯二甲酸乙二醇酯制成。 商业增长剂导致柔性泡沫收缩，这在本发明的泡沫中没有发现。
-
公开(公告)号：US4049657A
公开(公告)日：1977-09-20
申请号：US583019
申请日：1975-06-02
IPC分类号： C07D295/12 , B01J27/00 , C07B61/00 , C07D295/023 , C07D295/13 , C07D241/00
CPC分类号： C07D295/023 , C07D295/13
摘要： An improved process for selectively preparing an N-(aminoalkyl)piperazine compound is disclosed wherein piperazine is contacted with a primary or secondary amino alkanol compound in the presence of a catalytically effective amount of a phosphorus-containing substance at a temperature of from about 250.degree. to about 350.degree. C under a pressure sufficient to maintain the mixture essentially in liquid phase and the N-(aminoalkyl)piperazine is then recovered from the resultant reaction mixture. In a preferred embodiment piperazine is contacted with monoethanolamine to produce N-(2-aminoethyl)-piperazine.
摘要翻译： 公开了一种用于选择性制备N-（氨基烷基）哌嗪化合物的改进方法，其中哌嗪在催化有效量的含磷物质存在下，在约250℃的温度下与伯或仲氨基烷醇化合物接触 至约350℃，压力足以使混合物基本保持液相，然后从所得反应混合物中回收N-（氨基烷基）哌嗪。 在优选的实施方案中，使哌嗪与单乙醇胺接触以产生N-（2-氨基乙基） - 哌嗪。
-
3.发明授权Process for the preparation of mixed isomeric methylene-bridged polycyclohexylpolyamines 失效混合异构亚甲基桥连多环己基多胺的制备方法
公开(公告)号：US3959374A
公开(公告)日：1976-05-25
申请号：US474380
申请日：1974-05-30
IPC分类号： C07C20060101 , C07C87/40
CPC分类号： C07C209/72
摘要： A process is described for the preparation of mixed isomeric methylene-bridged polycyclohexylpolyamines wherein a mixed isomeric methylene-bridged polyphenyl polyamine mixture having a functionality of from about 2.0 to about 3.3 is pretreated by contacting the mixture and hydrogen with a nickel-containing hydrogenation catalyst at a temperature of from about 25.degree.C. to about 250.degree.C. under a pressure of about 500 to about 15,000 psig. The pretreated isomeric polyamine is then hydrogenated in the presence of ammonia under conventional hydrogenation conditions employing a ruthenium-containing hydrogenation catalyst. The pretreatment step allows the utilization of mixed isomeric methylene-bridged polyphenyl polyamine feed mixtures for the production of isomeric methylene-bridged polycyclohexylpolyamines in high yields without attendant deactivation of the ruthenium hydrogenation catalyst heretofore observed. The process is particularly applicable to continuous operation.
摘要翻译： 描述了制备混合异构亚甲基桥连的聚环己基多胺的方法，其中通过使混合物和氢与含镍氢化催化剂接触来预处理官能度为约2.0至约3.3的混合异构亚甲基桥接的聚苯基多胺混合物 在约500至约15,000psig的压力下温度为约25℃至约250℃。 然后将预处理的异构多胺在氨的存在下在常规氢化条件下使用含钌氢化催化剂进行氢化。 预处理步骤允许以高产率利用混合的异构亚甲基桥接的聚苯胺多胺进料混合物来生产异构亚甲基桥连的聚环己基多胺，而无需先前观察到钌氢化催化剂的失活。 该过程特别适用于连续操作。
-
4.发明授权Preparation of linear polyethylenepolyamines with silica-alumina catalysts 失效用二氧化硅 - 氧化铝催化剂制备线性聚亚乙基多胺
公开(公告)号：US4547591A
公开(公告)日：1985-10-15
申请号：US562122
申请日：1983-12-16
IPC分类号： C07B61/00 , B01J21/12 , B01J27/16 , B01J29/00 , C07C67/00 , C07C209/00 , C07C209/16 , C07C211/10 , C07C211/14 , C07C85/06
CPC分类号： C07C209/16
摘要： Disclosed is a process for preparing predominantly linear polyethylenepolyamines from the catalyzed reaction of (1) an ethyleneamine and an alkanolamine, (2) ethyleneamines or (3) an alkanolamine and ammonia. The catalyst employed is a silica-alumina catalyst. An acidic phosphorus cocatalyst may be used in conjunction with the silica-alumina catalyst.
摘要翻译： 公开了从（1）乙烯胺和链烷醇胺，（2）亚乙基胺或（3）链烷醇胺和氨的催化反应中主要制备线性聚亚乙基多胺的方法。 所使用的催化剂是二氧化硅 - 氧化铝催化剂。 酸性磷助催化剂可与二氧化硅 - 氧化铝催化剂结合使用。
-
公开(公告)号：US4036881A
公开(公告)日：1977-07-19
申请号：US583017
申请日：1975-06-02
IPC分类号： C08G73/00 , C07C67/00 , C07C209/00 , C07C209/16 , C07C211/14 , C08G73/02 , C07C87/20
CPC分类号： C08G73/0206 , Y02P20/582
摘要： An improved process for selectively preparing a predominantly noncyclic polyalkylene polyamine compound is disclosed wherein an alkyleneamine compound is contacted with an alkanolamine compound in the presence of a catalytically effective amount of a phosphorus-containing substance at a temperature of from about 250.degree. to about 350.degree. C under a pressure sufficient to maintain the mixture essentially in liquid phase and the polyalkylene polyamine is then recovered from the resultant reaction mixture. In a preferred embodiment ethylenediamine is contacted with monoethanolamine to produce a predominantly linear polyethylene polyamine product with very low yields of heterocyclic amine materials. The desired polyethylene polyamines produced can be directly recovered from the reaction products by known purification procedures.
摘要翻译： 公开了一种用于选择性制备主要非环状聚亚烷基多胺化合物的改进方法，其中在约250至约350℃的温度下，在催化有效量的含磷物质的存在下，使亚烷基胺化合物与链烷醇胺化合物接触 在足以将混合物保持在液相中的压力下，然后从所得反应混合物中回收聚亚烷基多胺。 在优选的实施方案中，乙二胺与单乙醇胺接触以产生具有非常低产率的杂环胺材料的主要线性的聚乙烯多胺产物。 生产的所需聚乙烯多胺可以通过已知的纯化方法从反应产物中直接回收。
-
6.发明授权Manufacture of polyols and rigid polyurethane foam using thiodialkylene glycols 失效使用硫代二亚烷基二醇制造多元醇和硬质聚氨酯泡沫
公开(公告)号：US4536522A
公开(公告)日：1985-08-20
申请号：US632167
申请日：1984-07-18
CPC分类号： C08G18/3868 , C08G18/4213 , C08G18/4676
摘要： The present invention is directed to the manufacture of polyols and polyurethanes using thiodialkylene glycols. More particularly, the present invention is directed to the manufacture of rigid polyurethane foam using novel polyols prepared by forming a condensation product of a polyethylene terephthalate with a low molecular weight glycol having a molecular weight of about 500 or less and a thiodialkylene glycol such as thiodiethylene glycol. The present invention is also directed to the use of thiodialkylene glycols as cross linking agents in the preparation of polyurethane foam from condensation products prepared by digesting a polyethylene terephthalate with a polyol having a molecular weight of about 500 or less such as a glycol or a triol.
摘要翻译： 本发明涉及使用硫代二亚烷基二醇制备多元醇和聚氨酯。 更具体地，本发明涉及使用通过形成聚对苯二甲酸乙二醇酯与分子量为约500或更小的低分子量二醇的缩合产物和硫代亚乙基二醇如硫代二乙烯制备的新型多元醇制备硬质聚氨酯泡沫体 乙二醇 本发明还涉及使用硫代二亚烷基二醇作为交联剂来制备聚氨酯泡沫体的缩合产物，其通过用分子量为约500或更小的多元醇如二醇或三醇消化聚对苯二甲酸乙二醇酯制备 。
-
公开(公告)号：US4026935A
公开(公告)日：1977-05-31
申请号：US583014
申请日：1975-06-02
IPC分类号： C07D295/023 , C07D295/088 , C08G18/20 , C07D295/12 , C07D265/28
CPC分类号： C07D295/023 , C07D295/088 , C08G18/2018 , C08G18/2081
摘要： An improved process is disclosed for selectively producing a bis-(morpholino-N-alkyl) ether directly from the corresponding N-(hydroxyalkyl)morpholine compound. The improved process includes contacting the N-(hydroxyalkyl) morpholine compound with a catalytically effective amount of a silica-alumina or certain phosphorus containing substances at a temperature of about 200.degree. C to 300.degree. C under a pressure sufficient to maintain the mixture substantially in liquid phase and recovering from the resultant reaction mixture the bis-morpholino-N-alkyl) ether.According to the preferred embodiment, N-(2-hydroxyethyl)morpholine is heated in the presence of a catalytic amount of a silica-alumina catalyst having an alumina content of from about 5 to about 50 wt. % at temperatures of from about 240.degree. C to about 280.degree. C in liquid phase to selectively produce the corresponding N,N',2,2'-dimorpholinodiethyl ether (DMDEE).
摘要翻译： 公开了用于从相应的N-（羟烷基）吗啉化合物直接选择性地生产双 - （吗啉代-N-烷基）醚的改进方法。 改进的方法包括使N-（羟烷基）吗啉化合物与催化有效量的二氧化硅 - 氧化铝或某些含磷物质在约200℃至300℃的温度下接触，在足以使混合物基本上保持在 从所得反应混合物中回收双吗啉代-N-烷基）醚。
-
公开(公告)号：US4439551A
公开(公告)日：1984-03-27
申请号：US476736
申请日：1983-03-18
CPC分类号： C08G18/4216 , C08G18/4213 , C08G18/6655 , C08G2101/005 , C08G2101/0075 , Y10S516/07
摘要： Economical, open-celled packaging foams of better quality than foams from commercial aromatic polyester polyols may be prepared with a novel polyol blend. The most important component in the polyol blend is an aromatic polyester polyol made from dibasic acid waste streams and recycled polyethylene terephthalate. This type of polyol made from waste or recycled reactant streams is economical to make and serves as an inexpensive substitute for a portion of more expensive amino polyols normally used.
摘要翻译： 可以使用新型多元醇混合物来制备比商业芳族聚酯多元醇泡沫更好质量的经济开放的开孔包装泡沫。 多元醇共混物中最重要的成分是由二元酸废物流和回收的聚对苯二甲酸乙二醇酯制成的芳族聚酯多元醇。 由废物或再循环的反应物流制成的这种类型的多元醇是经济的，并且用作通常使用的一部分更昂贵的氨基多元醇的廉价替代物。
-
公开(公告)号：US4044053A
公开(公告)日：1977-08-23
申请号：US682823
申请日：1976-05-03
IPC分类号： C07B61/00 , B01J27/00 , B01J31/00 , C07C67/00 , C07C209/00 , C07C209/16 , C07C211/14 , C08G73/02 , C07C87/20 , C07C85/06
CPC分类号： C08G73/0206 , Y02P20/582
摘要： An improved process for selectively preparing a predominantly noncyclic polyalkylene polyamine compound is disclosed wherein an alkyleneamine compound is contacted with a diol compound in the presence of a catalytically effective amount of a phosphorus-containing substance at a temperature of from about 250.degree. to about 350.degree. C under a pressure sufficient to maintain the mixture essentially in liquid phase and the polyalkylene polyamine is then recovered from the resultant reaction mixture. In a preferred embodiment ethylenediamine is contacted with monoethylene diol to produce a predominantly linear polyethylene polyamine product with very low yields of heterocyclic amine materials. The desired polyethylene polyamines produced can be directly recovered from the reaction products by known purification procedures.
摘要翻译： 公开了一种用于选择性制备主要非环状聚亚烷基多胺化合物的改进方法，其中在约250至约350℃的温度下，在催化有效量的含磷物质的存在下，使亚烷基胺化合物与二醇化合物接触 在足以将混合物保持在液相中的压力下，然后从所得反应混合物中回收聚亚烷基多胺。 在优选的实施方案中，乙二胺与单亚乙基二醇接触以产生具有非常低产率的杂环胺材料的主要线性聚乙烯多胺产物。 生产的所需聚乙烯多胺可以通过已知的纯化方法从反应产物中直接回收。
-
10.发明授权
公开(公告)号：US4433170A
公开(公告)日：1984-02-21
申请号：US284427
申请日：1981-07-20
IPC分类号： C07B61/00 , B01J23/00 , B01J23/86 , B01J31/00 , C07C67/00 , C07C213/00 , C07C217/08 , C08G18/18 , C07C93/04 , C07C91/04 , C07C91/10 , C07C91/12
CPC分类号： C08G18/1825
摘要： The alkylene oxide adduct of bis(aminoethyl)ether may be reacted with formaldehyde in the presence of hydrogen and a hydrogenation-dehydrogenation catalyst to produce new compounds of the formula ##STR1## where R is hydrogen or lower alkyl and R" is methyl or ##STR2## These compounds show unexpectedly high efficiency as polyurethane catalysts. Fewer equivalents of this amine are required to produce foams having the same reaction profile as foams made with piror art amine catalysts.
摘要翻译： 双（氨基乙基）醚的环氧烷烃加合物可以在氢气和氢化 - 脱氢催化剂的存在下与甲醛反应生成下式的新化合物，其中R是氢或低级烷基，R“是甲基或 这些化合物作为聚氨酯催化剂显示出意想不到的高效率。 需要较少量的该胺以制备具有与吡喃衍生物胺催化剂制得的泡沫相同的反应曲线的泡沫体。
-
-
-
-
-
-
-
-
-
搜索结果
52 条记录 (耗时 0.02 秒)