中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

71 records (took 0.022 seconds)

    HYDROXYL-CONTAINING SOLUTION RUBBER
    1.
    发明专利
    HYDROXYL-CONTAINING SOLUTION RUBBER 失效

    公开(公告)号：JP2000044734A

    公开(公告)日：2000-02-15

    申请号：JP19301299

    申请日：1999-07-07

    Applicant: BAYER AG

    Inventor： SCHOLL THOMAS DR ,  EISELE ULRICH ,  TRIMBACH JUERGEN ,  KELBCH STEFAN DR

    IPC: B60C1/00 ,  C08C19/20 ,  C08F236/10 ,  C08J3/21 ,  C08K3/00 ,  C08L15/00 ,  C08L19/00 ,  C08L21/00

    Abstract: PROBLEM TO BE SOLVED: To obtain a rubber blend suitably used to form a highly reinforced abrasion-resistant molding by incorporating at least one hydroxyl-containing solution-polymerized rubber synthesized from a diolefin and monomers. SOLUTION: The hydroxyl-containing solution-polymerized rubber contains 0.1-5 wt.% combined hydroxyl groups. It is desirable that a solution containing a hydroxyl-containing solution-polymerized rubber is mixed with 0.5-500 pts.wt., per 100 pts.wt. rubber filler being oxide or silicate in an organic solvent, and the solvent is removed from the mixture by treatment with steam. The diolefin is desirably 1,3-butadiene or isoprene, and the aromatic monomer is desirably styrene. A vulcanized rubber article made from a rubber blend prepared by mixing the solution-polymerized rubber with a filler and, optionally, other rubbers and rubber aids exhibits particularly high abrasion resistance. This can be used to produce a silica-filled tire tread needed to have particularly high wet grip and low rolling resistance.

    LOW-REVERSION CROSSLINKING AGENT
    2.
    发明专利
    LOW-REVERSION CROSSLINKING AGENT 失效

    公开(公告)号：JPH10168239A

    公开(公告)日：1998-06-23

    申请号：JP34872497

    申请日：1997-12-04

    Applicant: BAYER AG

    Inventor： WEIDENHAUPT HERMANN-JOSEF DR ,  SCHOLL THOMAS DR ,  KOENIGSHOFEN HEINRICH DR ,  BUDING HARTMUTH DR ,  HAHN JOSEF ,  PALLOCH PETRA ,  WALTER ELLEN

    IPC: C08L21/00 ,  C08K5/54 ,  C08K5/548

    Abstract: PROBLEM TO BE SOLVED: To obtain a crosslinking agent which can give a vulcanized rubber improved in heat load capacity in the production and service and reduced in the tendency toward reversion by using a silane. SOLUTION: At least one silane represented by the formula: R R R Si-X -(-Sx - Y-)m -(-Sx -X -SiR R R )n (wherein R to R are each a 1-18C alkyl, an alkoxyl, a 6-14C aryl, an aryloxy, a 7-18C alkylaryl, an alkylaryloxy; X and X are each a 1-12C alkylene; Y is a (6-12C aryl-, 1-8C alkoxyl- or hydroxyl-substituted) 1-18C (O-, S-, N- or 6-12C aromatic-interrupted alkylene, a 6-12C arylene or a heteroarylene; m is 21-80; n is 1-6; and x is 1-12) is used in an amount of 0.1-15wt.% based on the rubber used. Examples of the supports which can be desirably used include silica, silicates, aluminum oxide/aluminum hydroxide and carbon black.

    5.
    发明专利
    未知

    公开(公告)号：ES2139799T3

    公开(公告)日：2000-02-16

    申请号：ES95113607

    申请日：1995-08-30

    Applicant: BAYER AG

    Inventor： KOHLER BURKHARD DR ,  EBERT WOLFGANG DR ,  HORN KLAUS DR ,  WEIDER RICHARD DR ,  SCHOLL THOMAS DR

    IPC: C08J3/20 ,  C08K5/00 ,  C08L69/00

    Abstract: Thermoplastic moulding materials (I) contain: (A) 65-96.5 wt.% aromatic polycarbonate (PC), (B) 0.5-20 wt.% branched dimer fatty acid polyester with phenolic OH functional gps. and the following: (C) 1-25 wt.% polyisobutylene, (D) 1-25 wt.% silicone oil, and/or (E) 1-25 wt.% mineral oil. Also claimed are: (i) a process for the prodn. of (I) by melt-compounding the components at 220-360 degrees C or by mixing solns. of the components and evaporating on a stripping extruder, and (ii) moulded prods. obtd. from (I).

    7.
    发明专利
    未知

    公开(公告)号：DE19709873A1

    公开(公告)日：1998-09-17

    申请号：DE19709873

    申请日：1997-03-11

    Applicant: BAYER AG

    Inventor： SCHOLL THOMAS DR ,  WEIDENHAUPT HERMANN-JOSEF DR ,  KOENIGSHOFEN HEINRICH DR ,  EISELE ULRICH DR

    IPC: C08G65/32 ,  C08G65/334 ,  C08G65/336 ,  C08K5/54 ,  C08K5/548 ,  C08L21/00 ,  C08L83/05 ,  C08L19/00 ,  C08J3/24 ,  C08J5/00 ,  B29C35/00

    Abstract: Rubber mixtures, containing rubber(s), a filler, optionally other rubber additives and 0.1-15 wt% (based on rubber) of polyether-polysulphide-silane(s) of formula R R R Si-X -(Sx-Polyether-)m(Sx-X -SiR R R )n (I), in which R , R , R = 1-18C alkyl or alkoxy, 6-12C phenyl or phenoxy, or 7-18C alkylaryl or alkylaryloxy, at least one of these groups being alkoxy, phenoxy or alkylaryloxy; X , X = linear, branched or cyclic, optionally unsaturated 1-12C alkylene; Polyether = a bi-, tri- or tetra-functional polyethylene oxide-, polypropylene oxide- or polybutylene oxide-polyether or a corresponding mixed polyether group with an average mol. wt. of 300-5000; m = 1-20; n = 1-4; x = 1-8.

Patent Agency Ranking