WATER-SOLUBLE POLYMERS FOR THE REDUCTION OF DIETARY PHOSPHATE OR OXALATE ABSORPTION
    3.
    发明公开
    WATER-SOLUBLE POLYMERS FOR THE REDUCTION OF DIETARY PHOSPHATE OR OXALATE ABSORPTION 失效
    水溶性聚合物用于减少DIÄTETIKEM磷酸盐或草酸盐的吸收

    公开(公告)号:EP0934352A1

    公开(公告)日:1999-08-11

    申请号:EP97911925.0

    申请日:1997-10-22

    IPC分类号: A61K31 A61P3 C08G65

    CPC分类号: C08G65/223 C08G65/24

    摘要: The present invention is directed to a water-soluble polyether glycol polymer having: a structural backbone of carbon atoms and oxygen atoms where there are at least two consecutive carbon atoms present between each oxygen atom; a moiety on the backbone of the polymer or a functionalized derivative on the polymer, that is cationic at physiological pH and permits complexation with phosphate or oxalate; and an average molecular weight from about 5,000 to about 750,000 Daltons. These polymers are formulated for oral dosage to reduce the phosphonate or oxalate levels in an animal. The process of preparing these polymers and the method of reducing gastrointestinal absorption of phosphate and oxalate are included.

    POLY(ARYLAMINES) AND FILMS THEREOF
    6.
    发明公开
    POLY(ARYLAMINES) AND FILMS THEREOF 失效
    聚(芳香胺)及其薄膜

    公开(公告)号:EP0918811A1

    公开(公告)日:1999-06-02

    申请号:EP97939338.0

    申请日:1997-07-14

    IPC分类号: C08G73

    摘要: The invention relates to a poly(arylamine) composition of one or more compounds of from 5 to 1000 of monomer. The monomers useful in the preparation of poly(arylamines) comprise two amino moieties wherein each amino moiety is bound to three aryl moieties wherein two halo moieties are optionally bound to the monomer. The invention further relates to films prepared from such poly(arylamines), as well as electrophotographic devices and electroluminescent devices containing such films, such as polymeric light-emitting diodes. The invention also relates to processes for the preparation of poly(arylamines). The polymers of the invention form films which are relatively high molecular weight charge transport compounds which are capable of forming films. The films can be prepared using relatively small amounts of polymer while still maintaining the desirable properties of transporting positive charges. The processes disclosed herein provide efficient means of preparing the disclosed compounds.

    AMINE CAPPED POLYETHERS AND PROCESS FOR PRODUCING SAME
    10.
    发明公开
    AMINE CAPPED POLYETHERS AND PROCESS FOR PRODUCING SAME 失效
    AMINVERKAPPTE聚醚及其制备方法

    公开(公告)号:EP0853641A1

    公开(公告)日:1998-07-22

    申请号:EP96936164.0

    申请日:1996-10-03

    发明人: CHANG, Dane

    摘要: This invention includes catalysts comprising rhenium (atomic number 75), nickel, cobalt, boron and copper and/or ruthenium impregnated on a support material and a process for preparing said catalyst, said process comprising (i) impregnating a mixture of metals comprising rhenium, cobalt, copper and/or ruthenium, boron and nickel on a support material selected from the group consisting of alpha-alumina, silica, silica-alumina, kieselguhrs or diatomaceous earths, and silica-titanias; and (ii) activating said catalyst by heating the catalyst in the presence of hydrogen at an effective temperature preferably in the range of about 150 °C to about 500 °C for a sufficient period preferably of from about 30 minutes to about 6 hours. A further feature of the present invention is a method for producing amine products by the catalytic amination of polyether derivatives including epoxides, monols, diols, polyethers, polyols, alcoholamines, ketones, imino compounds iminoalcohols, ether alcohols, and mixtures thereof, said process comprising contacting said lower polyether derivatives with ammonia and/or reactant amine at an effective temperature preferably from 150 °C to about 500 °C and at an effective pressure preferably from 1000-5000 psig (6895-34,474 kPag) and in the presence of hydrogen and the nickel-rhenium-cobalt-boron-copper and /or ruthenium catalyst as described hereinabove.