41.
    发明专利
    未知

    公开(公告)号:AT285414T

    公开(公告)日:2005-01-15

    申请号:AT01121312

    申请日:2001-09-06

    Applicant: DEGUSSA

    Abstract: Production of yellow bis-(3-(triethoxysilyl)-propyl)polysulfane (average sulfur chain length less than 4 and iodine color number no greater than 10 mg iodine/100 ml) comprises mixing neutral chloropropyltriethoxysilane with chloropropyltrichlorosilane and reaction with sodium sulfide and sulfur, disodium tetrasulfide and Nas2S or disodium trisulfide and Na2S in ethanol. A process for the production of yellow bis-(3-(triethoxysilyl)-propyl)polysulfone having an average sulfur chain length of less than 4 and an iodine color number of no greater than 10 mg iodine/100 ml comprises mixing neutral chloropropyltriethoxysilane with chloropropyltrichlorosilane followed by reaction with sodium sulfide (Na2S) and sulfur, disodium tetrasulfide (N2S4) and Nas2S or disodium trisulfide (Na2S3) and Na2S in ethanol.

    42.
    发明专利
    未知

    公开(公告)号:ES2213712T3

    公开(公告)日:2004-09-01

    申请号:ES02000682

    申请日:2002-01-11

    Applicant: DEGUSSA

    Abstract: Production of 3-functionalized propyl silanes (I) by reacting allylic compounds (II) with silanes (III) at 0-200 degrees C and 0.8-25 bar in the presence of a platinum catalyst comprises using a (III):(II) molar ratio of 3-100. Production of 3-functionalized propyl silanes (I) by reacting allylic compounds of formula (II) with silanes of formula (III) at 0-200 degrees C and 0.8-25 bar in the presence of a platinum catalyst comprises using a (III):(II) molar ratio of 3-100:1 H2C=CH-CH2X (II) R R R SiH (III) X = Cl, Br, I, F, CN, SCN, SH, SR, OH, NRR or OR; R, R = 1-6C alkyl or 3-7C alkyl (sic); and R -R = H, halogen, 1-6C alkyl, 1-6C haloalkyl, 3-6C allyl (sic), 1-4C alkoxy, phenyl, aryl or aralkyl.

    44.
    发明专利
    未知

    公开(公告)号:AT266694T

    公开(公告)日:2004-05-15

    申请号:AT99110615

    申请日:1999-06-02

    Applicant: DEGUSSA

    Abstract: Oligomeric organosilane polysulfanes are novel. An oligomeric organosilane polysulfane (I) contains structural units (A), (B) and/or (C) in any linear, branched or cyclic arrangement whereby at least (A) or (B) is present. Independent claims are included for: (i) a process for the production of (I) by reaction of a compound of formula (1), optionally in a solvent and/or in the presence of a catalyst at 0-150 degrees C with addition of water to cause self polymerization or under analogous reaction conditions by copolymerization with a compound of formula (2); (ii) a rubber mixture (II) containing organosilane polysulfane (I); (iii) a process for the production of the rubber mixture (II) by addition of (I) and a filler to rubber; and (iv) molded articles prepared from (II). Y-Sx-(CH2)nSiR R R (1) RR R R Si (2) Y = H, CN, -(CH2)nSiRR R ; n = 1-8; R-R = H, 1-4C alkyl, 1-4C alkoxy, halogen or OSiR R R ; x = 1-8; z = 2-6; o, p, qq = 1-40; o+p+q = 2-40.

    45.
    发明专利
    未知

    公开(公告)号:ES2198636T3

    公开(公告)日:2004-02-01

    申请号:ES98122604

    申请日:1998-11-27

    Applicant: DEGUSSA

    Abstract: In the production of anhydrous sodium sulfide, sodium sulfide containing 35-45% water with mixing is passed through an apparatus, in which the product temperature of approximately 20 degrees C at the place of solid injection gradually rises to at least 180 degrees C while the subpressure is maintained at less than 20, preferably less than 11 torr.

    46.
    发明专利
    未知

    公开(公告)号:AT257158T

    公开(公告)日:2004-01-15

    申请号:AT02000682

    申请日:2002-01-11

    Applicant: DEGUSSA

    Abstract: Production of 3-functionalized propyl silanes (I) by reacting allylic compounds (II) with silanes (III) at 0-200 degrees C and 0.8-25 bar in the presence of a platinum catalyst comprises using a (III):(II) molar ratio of 3-100. Production of 3-functionalized propyl silanes (I) by reacting allylic compounds of formula (II) with silanes of formula (III) at 0-200 degrees C and 0.8-25 bar in the presence of a platinum catalyst comprises using a (III):(II) molar ratio of 3-100:1 H2C=CH-CH2X (II) R R R SiH (III) X = Cl, Br, I, F, CN, SCN, SH, SR, OH, NRR or OR; R, R = 1-6C alkyl or 3-7C alkyl (sic); and R -R = H, halogen, 1-6C alkyl, 1-6C haloalkyl, 3-6C allyl (sic), 1-4C alkoxy, phenyl, aryl or aralkyl.

    Process for preparing yellow bis(3-[triethoxysilyl]propyl)polysulfane

    公开(公告)号:CZ20013273A3

    公开(公告)日:2002-09-11

    申请号:CZ20013273

    申请日:2001-09-11

    Applicant: DEGUSSA

    Abstract: Production of yellow bis-(3-(triethoxysilyl)-propyl)polysulfane (average sulfur chain length less than 4 and iodine color number no greater than 10 mg iodine/100 ml) comprises mixing neutral chloropropyltriethoxysilane with chloropropyltrichlorosilane and reaction with sodium sulfide and sulfur, disodium tetrasulfide and Nas2S or disodium trisulfide and Na2S in ethanol. A process for the production of yellow bis-(3-(triethoxysilyl)-propyl)polysulfone having an average sulfur chain length of less than 4 and an iodine color number of no greater than 10 mg iodine/100 ml comprises mixing neutral chloropropyltriethoxysilane with chloropropyltrichlorosilane followed by reaction with sodium sulfide (Na2S) and sulfur, disodium tetrasulfide (N2S4) and Nas2S or disodium trisulfide (Na2S3) and Na2S in ethanol.

    48.
    发明专利
    未知

    公开(公告)号:ID23211A

    公开(公告)日:2000-03-30

    申请号:ID990874

    申请日:1999-09-20

    Applicant: DEGUSSA

    Abstract: A rubber mixture containing rubber, filler, especially precipitated silicic acid and optionally other rubber adjuvants, and at least one sulfanyl silane, in quantity 0.1-15 preferably 5-10 wt. %, relative to the amount of oxygenic filler is new. The sulfanyl silane has the formula (I): X X X Si-A-S-SiR R R (I) R -R each = H, 1-8C alkyl, 1-8C alkoxy, 1-4C haloalkyl, aryl, 7-16C aralkyl, halogen, A-S-SiR R R , R -R each = H, 1-16C alkyl, 1-16C alkoxy, 1-16C haloalkyl. aryl, 7-16C aralkyl, halogen, X X X -A-S, A = 1-16C alkyl, linear or branched, optionally substituted with 1-4C alkyl, 1-4C alkoxy, halogen, nitrile, 1-4C haloalkyl, NO2, 1-4C thioalkyl, NR R , -A-S-SiR R R , or X X X -A-, aryl, or 7-16C aralkyl. Independent claims are included for: (1) Preparation of sulfanyl silanes of formula (I) by reaction of a corresponding mercaptosilane X1X2X3Si-alkyl-SH with chlorosilanes Cl-SiR1R2R3 in the presence of an adjuvant, e.g. triethylamine or other amine in an organic solvent, e.g. an alkane, and boiling of the mixture to complete the reaction. The solvent is then distilled off, and the solid hydrochloride of the adjuvant base is filtered off; and (2) a rubber mixture containing oxygenic filler, especially precipitated silicic acid, and optionally other rubber adjuvants, and at least one sulfanyl silane in amount 0.1-15 wt. % relative to the amount of oxygenic filler.

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