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    VULCANIZABLE RUBBER MIXTURE CONTAINING AN ORGANOSILANE
    134.
    发明专利
    VULCANIZABLE RUBBER MIXTURE CONTAINING AN ORGANOSILANE 未知

    公开(公告)号：CA1161185A

    公开(公告)日：1984-01-24

    申请号：CA358299

    申请日：1980-08-15

    Applicant: DEGUSSA

    Inventor： WOLFF SIEGFRIED ,  TAN EWE-HONG

    IPC: C08L7/00 ,  C08K3/00 ,  C08K3/06 ,  C08K3/18 ,  C08K3/22 ,  C08K3/34 ,  C08K5/00 ,  C08K5/04 ,  C08K5/09 ,  C08K5/54 ,  C08K5/5419 ,  C08L1/00 ,  C08L21/00 ,  C08L23/00 ,  C08L27/00 ,  C08L33/00 ,  C08L33/02 ,  C08L101/00 ,  C08L9/00

    Abstract: Vulcanisable Rubber Mixture A vulcanisable rubber mixture of vulcanisable halogen-free rubber or of a mixture of a halogen-free rubber with at most 80%, based on the total weight of the rubber, of a halogen-containing rubber; a silicate filler in quantities of from 1 to 250 parts by weight; an oxide of the metals zinc, magnesium and lead in quantities of from 0 to 15 parts by weight; a monobasic fatty acid containing from 12 to 24 carbon atoms in the alkyl chain, benzoic acid or salicylic acid in quantities of from 0 to 10 parts by weight; optionally sulphur and/or sulphur donors in quantities of from 0.1 to 15 parts by weight; a vulcanisation accelerator in quantities of from 0.1 to 10 parts by weight; a plasticiser in quantities of from 0 to 100 parts by weight; a stabiliser from the group comprising anti-agers, anti-fatigue agents, oxidation inhibitors, light stabilisers and anti-ozonants in respective quantities of from 0 to 10 parts by weight; carbon black in quantities of from 0 to 150 parts by weight; optionally other standard rubber auxiliaries in the usual quantities and at least one organo silane. The rubber mixture contains as organo silane from 0.1 to 20 parts by weight of at least one compound corresponding to the following general formula Xp-CmH2m+1-p-SiR?(OR)3-n I in which X represents chlorine or bromine, p is 1 or 2, m is 1 to 5, R1 represents a C1-C5-alkyl group, a C5-C8-cycloalkyl group or a phenyl group, R represents a C1-C5-alkyl group, a C5-C8-cycloalkyl group, a methoxyethyl group, a phenyl group or the benzyl group and n is 0, 1 or 2, or a hydrolysate and/or condensate thereof. All the quantities specified are based on 100 parts by weight of the rubber. The rubber mixture may additionally contain per 100 parts by weight of rubber - from 0.5 to 10 parts by weight of at least one organo silane corresponding to the formulae ¢R?(RO)3-nSiAlk-!2Sx II and/or R?(RO)3-nSi-Alk-SH III in which R and R1, which may be the same or different, each represent an alkyl group containing from 1 to 4 carbon atoms, a cycloalkyl group containing from 5 to 8 carbon atoms or a phenyl radical, n is 0, 1 or 2, Alk represents a difunctional, linear or branched hydrocarbon radical containing from 1 to 10 carbon atoms and x is n number of from 2.0 to 8.0 or a hydrolysate and/or a condensate thereof. It may also contain a master batch of at least one organo silane corresponding to formulae I, II and III and a silicate filler and/or carbon black. the invention also relates to the process for vulcanising the rubber mixtures and to the use of the rubber mixtures for the production of motor vehicle tyres, particularly car tyres, lorry tyres and tyres for cross-country vehicles, for the production of treads for motor vehicle tyres, industrial rubber products and shoe soles.

    SILICATE-FILLED VULCANIZABLE HALOGEN RUBBER MIXTURES
    137.
    发明专利
    SILICATE-FILLED VULCANIZABLE HALOGEN RUBBER MIXTURES 未知

    公开(公告)号：CA1136309A

    公开(公告)日：1982-11-23

    申请号：CA326954

    申请日：1979-05-04

    Applicant: DEGUSSA

    Inventor： WOLFF SIEGFRIED ,  TAN EWE H

    IPC: C08L7/00 ,  C08J3/24 ,  C08K3/00 ,  C08K3/18 ,  C08K3/22 ,  C08K3/34 ,  C08K5/00 ,  C08K5/54 ,  C08K5/5419 ,  C08L1/00 ,  C08L15/02 ,  C08L21/00 ,  C08L23/00 ,  C08L23/26 ,  C08L23/28 ,  C08L27/00 ,  C08L101/00

    Abstract: The present invention provides a vulcanizable halogen rubber mixture of at least one halogen rubber, at least one silicate filler in an amount of 1 to 250 parts by weight, magnesium oxide in an amount of 0 to 15 parts by weight, zinc oxide in the amount of 0.1 to 15 parts by weight, sulphur in an amount of 0 to 15 parts by weight,stearic acid in an amount of 0 to 10 parts by weight, at least one vulcanization accelerator in an amount of 0 to 10 parts by weight, at least one plasticizer in an amount of 0 to 100 parts by weight, at least one stabilizer from the group of antiagers, fatigue inhibitors, antioxidants, light absorbing agents and ozone resisting agents in an amount of 0 to 10 parts by weight, carbon black in an amount of 0 to 150 parts by weight and at least one organosilane, the halogen-rubber mixture containing as organosilane at least one compound having the general formula: X-CmH2m-SiR1n(OR)3-n wherein X represents chlorine, bromine or iodine, m represents a number from 1 to 5, R1 represents a C1- to C5- alkyl group, a C5to C8- cycloalkyl group or the phenyl group, R represents a C1to C5-alkyl group, a C5- to C8- cycloalkyl group, the methoxyethyl group, the phenyl group or the benzyl group and n is 0, for 2, in an amount of 0.1 to 20 parts by weight, all the specified amounts being relative to 100 part by weight of halogen rubber. Iudstrial fields of application for the rubber mixtures described and for their vulcanization are, for example, technical rubber articles such as cable sheathing, tubing, air tubes, driving belts, V-belts, conveyor belts, roller covers, washers, electrical insulations, linings, impregnating and coating of heatresistant fabrics, damping and vibration elements and similar articles which must meet high requirements with respect to resistance to high temperatures and/or to oil.

    SILICA-CONTAINING MIXTURE
    138.
    发明专利
    SILICA-CONTAINING MIXTURE 未知

    公开(公告)号：CA1049673A

    公开(公告)日：1979-02-27

    申请号：CA217668

    申请日：1975-01-09

    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 ,  C08K5/54 ,  C08L61/00

    Abstract: The present invention provides a silica-containing mixture for improving the adhesion to vulcanizable mixtures of natural or synthetic rubber to reinforcing fillers or underlayers of textile or metallic fabrics after the mixture has been vulcanized thereon, said mixture comprising (A) an active, synthetically produced silica or silicate having a specific surface area according to BET of approximately 50 to 500 sq m per gram and an average primary particle size ranging from approximately 5 to 100 nm or a mixture thereof and comprising at least(B) one component, which forms phenol resin or aminoplast or (C) an least an organosilane selected from a bis-alkoxy-silyl-alkyl-oligosulphide having the general formula (I) q - Alk - Sn - Alk - Z wherein Z represents the groupings and wherein R1 represents an alkyl group containing 1 to 4 carbon atoms or the phenyl radical and R2 represents an alkoxy group containing 1 to 8, a cycloalkoxy group containing 5 to 8 carbon atoms or a straight or branched alkyl-mercapto group containing 1 to 8 carbon atoms and wherein all the symbols R1 and R2 can have the same or a different meaning, -Alk- represents a divalent, straight or branched hydrocarbon radical containing 1 to 18 carbon atoms and n represents a number from 2 to 6, a silane containing mercapto groups and having the general formula (II) Z - Alk - SH wherein Z and Alk have the meaning specified above, or a silane having the general formula (III) Z - Alk - A, wherein Z and Alk have the meaning specified above and A represents the groupings N = C - S R - S RO - CS - S RS - CS - S R1 - CS - S -, wherein each of R and R1 represent a monovalent organic radical saturated or unsaturated, branched or unbranched, acyclic, cyclic, heterocyclic or heteroaromatic rradical and containing 1 to 15 carbon atoms and 1 to 5 hetero atoms from the group of nitrogen, oxygen and sulphur or both (B) and (C).

    VULCANIZABLE RUBBER MIXTURES FOR TIRE TREADS
    139.
    发明专利
    VULCANIZABLE RUBBER MIXTURES FOR TIRE TREADS 未知

    公开(公告)号：CA1049171A

    公开(公告)日：1979-02-20

    申请号：CA211285

    申请日：1974-10-11

    Applicant: DEGUSSA

    Inventor： BURMESTER KURT ,  WOLFF SIEGFRIED ,  KLOTZER ERHARD ,  THURN FRIEDRICH

    IPC: C08L7/00 ,  B60C1/00 ,  C08K3/00 ,  C08K5/00 ,  C08K5/36 ,  C08K5/548 ,  C08L1/00 ,  C08L9/00 ,  C08L21/00 ,  C08L23/00 ,  C08L27/00 ,  C08L33/00 ,  C08L33/02 ,  C08L101/00 ,  C08K5/54

    Abstract: The present invention provides a vulcanizable rubber mixture for tire treads which is based on rubbers capable of being cross-linked, silica filler, processing oil, sulphur-con-taining organosilanes and accelerator, said mixture comprising one or two polybutadiene rubbers in amounts of 20 to 100% by weight of the proportion of elastomer, one or two rubbers other than polybutadiene selected from synthetic rubbers and natural rubbers in amounts of 80 to 0% by weight of the proportion of elastomer in the rubber mixture, active silica filler in amounts of more than 80 parts by weight per 100 parts by weight of rubber, processing oil in amounts of 40 to 100 parts by weight per 100 parts of rubber, at least one bis-¢-alkoxy silyl alkyl!oligosulphide in amounts of 0.1 to 25% by weight per 100 parts by weight of rubber, sulphur in amounts totalling approximately 0.2 to 8 parts by weight per 100 g of rubber and at least one vulcanization accelerator in amounts of approximately 0.1 to 8 parts by weight per 100 parts by weight of rubber The present invention also includes a tire tread formed from said mixture.

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