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    A process for improving the adhesion to textiles of mixtures of natural and synthetic rubber
    6.
    发明专利
    A process for improving the adhesion to textiles of mixtures of natural and synthetic rubber 未知

    公开(公告)号：GB1126146A

    公开(公告)日：1968-09-05

    申请号：GB540967

    申请日：1967-02-03

    Applicant: DEGUSSA

    Inventor： KLOETZER ERHARD ,  POCHERT JOHANNES

    IPC: C08J5/10 ,  C08K3/26 ,  C08K3/34 ,  C08K9/12

    Abstract: 1,126,146. Coating. DEUTSCHE GOLD- und SILBER-SCHEIDEANSTALT. 3 Feb., 1967 [8 March, 1966], No. 5409/67. Heading B2E. [Also in Division C3] Rubber is bonded to a textile material by incorporating in the rubber a phenol or amine and an aldehyde which reacts with the phenol or amine on heating to form a resin, and from 10 to 100 parts by weight of active silica per 100 parts by weight of rubber, and vulcanising the rubber in contact with the textile. The composition may contain other fillers, such as carbon black, and heavy metal oxides, particularly lead oxide. The preferred reactants are resorcinol and formaldehyde (from hexamethylene tetramine). Suitable textiles are polyester, polyamide, and rayon and may be pretreated by a conventional solutioning process.

    SILICA-CONTAINING MIXTURE
    7.
    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).

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