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公开(公告)号:US4863478A
公开(公告)日:1989-09-05
申请号:US190203
申请日:1988-05-04
IPC分类号: D06M13/02 , D06M13/184 , D06M13/192 , D06M13/203 , D06M13/224 , D06M13/244 , D06M13/248 , D06M13/256 , D06M13/262 , D06M13/282 , D06M13/292 , D06M15/227 , D06M101/00 , D06M101/16 , D06M101/18 , D06M101/28
CPC分类号: D06M15/227 , D06M13/192 , D06M13/203 , Y10T428/2969
摘要: Improved dressings for synthetic fibers, especially acrylonitrile fibers, comprise an anion-active preparation, a polyethylene dispersion and a dicarboxylic acid semi-ester salt.
摘要翻译: 用于合成纤维,特别是丙烯腈纤维的改进的敷料包括阴离子活性制剂,聚乙烯分散体和二羧酸半酯盐。
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公开(公告)号:US5763717A
公开(公告)日:1998-06-09
申请号:US524554
申请日:1995-09-07
申请人: Hans-Josef Buysch , Christine Mendoza-Frohn , Jurgen Scharschmidt , Ulrich Notheis , Rudolf Jurgen Klee , Gerhard Darsow
发明人: Hans-Josef Buysch , Christine Mendoza-Frohn , Jurgen Scharschmidt , Ulrich Notheis , Rudolf Jurgen Klee , Gerhard Darsow
摘要: A description is given of the preparation of hydroxybiphenyl by dehydrogenation of completely or partially hydrogenated precursors using a supported Rh catalyst which additionally contains chromium, manganese and alkali metal and can contain a sulphur compound. The Rh catalyst which can be used according to the invention is prepared from halide-free starting materials. The Rh catalyst is distinguished by a low dependence of the initial selectivity, with the selectivity in the run-in state and the running-in time on the conditions of the reductive pretreatment and requires only short running-in times to reach the optimum state.
摘要翻译: 描述了使用另外含有铬,锰和碱金属并且可以含有硫化合物的负载的Rh催化剂,通过完全或部分氢化的前体脱氢来制备羟基联苯。 根据本发明可以使用的Rh催化剂由无卤素起始材料制备。 Rh催化剂的特征在于初始选择性的低依赖性,在导入状态下的选择性和还原预处理条件下的进入时间,并且仅需要短的进入时间才能达到最佳状态。
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