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公开(公告)号:US20070265184A1
公开(公告)日:2007-11-15
申请号:US11688505
申请日:2007-03-20
申请人: Jurgen Herwig , Wilhelm Brugging , Martin Roos , Norbert Wilczok
发明人: Jurgen Herwig , Wilhelm Brugging , Martin Roos , Norbert Wilczok
IPC分类号: C07C13/277 , A61K8/31 , C07C2/42 , C07C61/00 , C07D225/00 , C07C62/00 , C07C211/00 , A61Q13/00
CPC分类号: C09K21/14 , C07C2/465 , C07C2527/135 , C07C2531/14 , C07C2531/22 , C07C2601/18 , C07C13/277
摘要: Preparation of cyclododecatriene in a continuous or discontinuous process by trimerization of butadiene in the presence of a catalyst system and a solvent, the crude cyclododecatriene obtained being able to be isolated by means of distillation. The cyclooctadiene formed as by-product can likewise be isolated from the crude product.
摘要翻译: 在催化剂体系和溶剂的存在下,通过丁二烯的三聚制备连续或不连续的环十二碳三烯,所得的粗环十二碳三烯能够通过蒸馏分离。 作为副产物形成的环辛二烯同样可以与粗产物分离。
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公开(公告)号:US4835244A
公开(公告)日:1989-05-30
申请号:US200257
申请日:1988-05-31
申请人: Walter Heitz , Wilhelm Brugging
发明人: Walter Heitz , Wilhelm Brugging
IPC分类号: C08G63/18 , C08G63/19 , C08G63/682 , C08G63/81
CPC分类号: C08G63/81 , C08G63/19 , C08G63/6826
摘要: This invention relates to polyesters corresponding to formula (I) ##STR1## wherein R.sup.1 and R.sup.2 stand for --CH.sub.2 --CH.sub.2 --Ar wherein Ar denotes an aromatic group or one of these two groups is --CH.sub.2 --CH.sub.2 --Ar while the other is an alkyl group, a substituted alkyl or an aryl group or halogen andn represents an integer with a value from 5 to 2000, and to a process for their preparation.
摘要翻译: 本发明涉及对应于式(I)的聚酯(Ⅰ),其中R1和R2代表-CH2-CH2-Ar,其中Ar表示芳族基团或这两个基团中的一个是-CH 2 -CH 2 -Ar,而 另一个是烷基,取代的烷基或芳基或卤素,n表示5至2000的整数,以及它们的制备方法。
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公开(公告)号:US5468441A
公开(公告)日:1995-11-21
申请号:US293557
申请日:1994-08-22
IPC分类号: B29C45/00 , B29K67/00 , B29L7/00 , B29L23/00 , B29L24/00 , C08G63/52 , C08G63/54 , C08G63/676 , C08G63/78 , C08G63/80 , C08G63/88 , C08L67/06
摘要: A high-molecular-weight polyester is prepared by polycondensing an aromatic dicarboxylic acid with a mixture of alkanediols and alkenediols with substantial exclusion of oxygen and in the presence of a catalyst, until a viscosity number in the range from 50 to 140 cm.sup.3 /g is reached and then postcondensing the polycondensed material in the solid-phase until the required viscosity number is reached.
摘要翻译: 通过将芳族二羧酸与烷基二醇和烯二醇的混合物与氧气基本上排除并且在催化剂存在下,使粘度为50-140cm 3 / g的粘度数为 达到并然后使固相中的缩聚材料缩聚,直到达到所需的粘度数。
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