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    • 23. 发明专利
    • DE1468669C3
    • 1975-09-04
    • DE1468669
    • 1963-09-14
    • MONTECATINI EDISON S.P.A., MAILAND (ITALIEN)
    • CAPORALI, GIORGIOGIORDANO, NICOLAFERLAZZO, NATALEOTTAVIANI, QUINTINO, PESCARA
    • B01J21/00B01J23/16B01J23/18B01J23/26B01J23/28B01J23/31B01J23/34B01J23/755B01J23/88B01J23/887B01J27/057C07C121/32
    • 1,055,307. Bismuth and tellurium salts of heteropoly acids. SOCIETA EDISON. Sept. 18, 1963 [Sept. 20, 1962], No. 36798/63. Heading C1A. [Also in Divisions B1 and C2] A heteropoly compound is prepared by reacting at least one heteropoly acid having as a central element Ti, Zr, Sn, Mn, Co, Ni, Cr, Al or Fe and having molybdenum as its coordinated element, or an ammonium salt of such an acid with a salt, oxide or hydroxide of Bi or Te. The reaction is performed in a liquid reaction medium in the presence of a strong acid, and the products have the formul t e: Me a -BMo c O z , where Me is Bi or Te, B is Mn, Co, or Ni, x is a number from 0-1 to 18 and z is a number from 29 to 65; Me x AMo 12 O y , where Me is Bi or Te, A is Ti, Zr, or Sn, x is a number from O'l to 18, and y is a number from 38 to 74; and Mea-tCgMo ia O w ], where Me and are as above, C is Cr, Al or Fe, and w is number from 39 to 75. The above compounds are prepared from the corresponding acids H 4 (AMo 12 O 40 ); H 6 (BMo 9 O 32 ); and H 6 (C 2 Mo 12 O 42 ). The above materials are used as catalysts in the preparation of organic nitriles, preferably unsaturated nitriles, from defines, e.g. propylene by the action of ammonia and oxygen. The catalytic material may be activated before use by heat treatment at a temperature between 400‹ and 600‹ C. for a period of time from 5 to 30 hours. Prior to the heat treatment there may be added to the catalyst an organic substance, e.g. oil, glycerol, polyvinyl acetate, and polyvinyl alcohol, which substance decomposes on heating to increase the porosity of the catalyst. A support material, e.g. silica aerogel, may be mixed with the catalyst. In the nitrile producing reaction which is carried out at a temperature of 300‹ to 600‹ C., the contact time of the gaseous reactants on the catalyst is between 0-05 and 20 sees., and the proportions of reaetants are such that the mixture contains between 0À5 and 2-5 moles of oxygen and between 0-3 and 2 moles of ammonia per mole of olefin. The reacting gases may be diluted with an inert gas, e.g. a paraffinic hydrocarbon, N 2 , CO 2 , or steam.
    • 25. 发明专利
    • DE1770444C3
    • 1975-05-22
    • DE1770444
    • 1964-04-02
    • MONTECATINI EDISON S.P.A., MAILAND (ITALIEN)
    • NATTA, GIULIODALL'ASTA, GINIMAZZANTI, GIORGIO
    • C08G61/00C08F4/64C08F10/00C08G61/04C08G61/06C08G61/08C08F132/02
    • High molecular weight stereoregular polymers containing the repeating unit (-CH2-CH2-CH=CH-CH2-) are made by a process which comprises polymerizing cyclopentene in the presence of a catalyst obtained by mixing a transition metal salt of Groups IVb or VIb of the Periodic Table according to Mendel aeeff with a metallorganic compound or metal hydride of Groups Ia, II or III. In the examples polymers with the cis configuration are formed with aluminium compounds and either molybdenum or molybdenyl pentachloride or with tungsten hexachloride and beryllium diethyl. Otherwise systems composed of an organo-aluminium compound and one of molybdenum dichloride triphenoxide, molybdenum pentafluoride monochloride, tungsten hexachloride, zirconium tetrachloride or titanium tetrachloride produce the trans form. In Examples (12) and (13), a catalyst system comprising aluminium triethyl and either titanium tetrachloride or a mixture of alumi nium trichloride and titanium trichloride produces a mixture of polyethylene and polycyclopentene. A catalyst of tungsten hexafluoride and lithium n-butyl gives a mixture of cis and trans forms. The polymers are sulphur vulcanizable. Specification 995,186 is referred to.
    • 28. 发明专利
    • DE1795458B2
    • 1975-01-16
    • DE1795458
    • 1966-01-28
    • MONTECATINI EDISON S.P.A., MAILAND (ITALIEN)
    • TORTI, LUIGIMARCELLO, STEFANOBERTELLI, GUIDO
    • B32B27/00C08L23/16C08L9/00
    • 1,129,288. Pneumatic tyres. MONTECATINI SOCIETA GENERALE PER L'INDUSTRIA MINERARIA E CHIMICA. 26 Jan., 1966 [29 Jan., 1965], No. 3508/66. Heading B7C. [Also in Division B5] A process for treading or retreading a tyre carcass of unsaturated rubber comprising natural rubber, polybutadiene or styrene-butadiene rubber with a tread of a saturated amorphous ethylene-alpha olefine copolymer comprises vulcanizing the assembly at between 110‹ and 230‹ C., both carcass and tread containing vulcanizing agents and reinforcing fillers and the tread containing as adhesion promoter a polymeric substance of molecular weight between 200 and 50,000 which is fluid at the vulcanizing temperature and co-vulcanizable with the two elastomers by action of the respective vulcanizing agents contained therein. Conven. tional vulcanizing agents and fillers are listed. Specified adhesion promoters are polyethylene glycol, natural rubber depolymerized to the liquid state, liquid polybutadiene, phenol-aldehyde and phenol-acetylene resins, polymers of esters of resinic acid with polyhydroxy alcohols, aromatic petroleum resins, coumarone-indene resins and cobalt and zinc resinate. Specified alpha olefines are propylene and butene-1.