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254 records (took 0.022 seconds)

    183.
    发明专利
    未知

    公开(公告)号：RO72488A

    公开(公告)日：1983-04-29

    申请号：RO8108275

    申请日：1975-01-10

    Applicant: DEGUSSA

    Inventor： POCHERT JOHANNES ,  WOLFF SIEGFRIED ,  THURN FRIEDRICH

    IPC: C08L7/00 ,  B29C35/00 ,  B29C55/00 ,  B29C65/00 ,  B29C65/70 ,  C08J5/10 ,  C08K3/00 ,  C08K5/00 ,  C08K5/548 ,  C08K7/00 ,  C08L21/00 ,  C08L61/10 ,  C08L67/00 ,  C08L77/00

    Abstract: Silica containing mixtures for the improvement of the adhesion of vulcanizable mixtures of natural and/or synthetic rubber to reinforcing fillers or supports of textile and/or metallic fabrics after the vulcanization are prepared that substantially consist of (A) active synthetically produced silica or silicates having a specific surface area according to the BET procedure of about 50 to 500 m2/g and an average primary particle size of from about 5 to 100 and at least one of (B) phenolic resin or aminoplast forming components, namely on the one hand phenols and/or amines and on the other hand aldehydes or aldehyde donors, and/or at least (C) one organosilane which can be a bisalkoxysilylalkyl-oligosulfide of the formula I. Z-Alk-Sn-Alk-Z, in which Z stands for the group R1 R1 R2 ¦ ¦ ¦ (a)-Si-R1, (b)-Si-R2 or (c)-Si-R2 ¦ ¦ ¦ R

    BIS-(SILYL-ETHYL)-OLIGOSULPHIDES AND A PROCESS FOR THEIR PRODUCTION
    185.
    发明专利
    BIS-(SILYL-ETHYL)-OLIGOSULPHIDES AND A PROCESS FOR THEIR PRODUCTION 未知

    公开(公告)号：CA1144936A

    公开(公告)日：1983-04-19

    申请号：CA342418

    申请日：1979-12-20

    Applicant: DEGUSSA

    Inventor： SCHWARZ RUDOLF ,  KLEINSCHMIT PETER ,  LIEDTKE CHRISTA ,  WOLFF SIEGFRIED

    IPC: C08L7/00 ,  C07F7/08 ,  C07F7/12 ,  C07F7/18 ,  C08G75/02 ,  C08G75/14 ,  C08K5/5425 ,  C08K5/548 ,  C08L21/00 ,  C08L23/00 ,  C08L33/00 ,  C08L33/02 ,  C08L101/00 ,  C08K5/54

    Abstract: Bis-(silyl-ethyl)-oligosulphide obtained by reacting a vinyl silane having the formula (CH2=CH)m-SiR?R4-(m+n) wherein R represents chlorine, iodine, C1-C3-alkoxy, 2-methoxy-ethoxy, 2-ethoxy-ethoxy or hydroxy, R1 represents C1-C3-alkyl, phenyl or C5-C7-cycloalkyl, n is 0, 1 or 2, m is 1 or 2 and m + n is 1, 2 or 3, with sulphur and, when required, with hydrogen sulphide in a molar ratio ranging from 1:2.5 to 1:10 and of vinyl silane to hydrogen sulphide from 1:0 to 0:5 at a temperature between approximately 100 and 200.degree.C under a pressure ranging from 1 to 25 bars (total pressure at the reaction temperature) and in the presence of Sulphidation catalysts and when required hydrolysis or partial hydrolysis of the reaction product. The corresponding process of production and the use of a bis-(silyl-ethyl)-oligosulphide as a reinforcing additive (adhesion promoter) in a crosslinkable rubber mixture containing a silicate filler and when required carbon black as well as sulphur and other conventional mixture components are also disclosed.

    190.
    发明专利
    未知

    公开(公告)号：CH602841A5

    公开(公告)日：1978-08-15

    申请号：CH25175

    申请日：1975-01-10

    Applicant: DEGUSSA

    Inventor： POCHERT JOHANNES ,  WOLFF SIEGFRIED ,  THURN FRIEDRICH

    IPC: C08L7/00 ,  B29C35/00 ,  B29C55/00 ,  B29C65/00 ,  B29C65/70 ,  C08J5/10 ,  C08K3/00 ,  C08K5/00 ,  C08K5/548 ,  C08K7/00 ,  C08L21/00 ,  C08L61/10 ,  C08L67/00 ,  C08L77/00 ,  C08K3/34

    Abstract: Silica containing mixtures for the improvement of the adhesion of vulcanizable mixtures of natural and/or synthetic rubber to reinforcing fillers or supports of textile and/or metallic fabrics after the vulcanization are prepared that substantially consist of (A) active synthetically produced silica or silicates having a specific surface area according to the BET procedure of about 50 to 500 m2/g and an average primary particle size of from about 5 to 100 and at least one of (B) phenolic resin or aminoplast forming components, namely on the one hand phenols and/or amines and on the other hand aldehydes or aldehyde donors, and/or at least (C) one organosilane which can be a bisalkoxysilylalkyl-oligosulfide of the formula I. Z-Alk-Sn-Alk-Z, in which Z stands for the group R1 R1 R2 ¦ ¦ ¦ (a)-Si-R1, (b)-Si-R2 or (c)-Si-R2 ¦ ¦ ¦ R

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