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    11.
    发明专利
    未知

    公开(公告)号：AT313589T

    公开(公告)日：2006-01-15

    申请号：AT02018990

    申请日：2002-08-27

    Applicant: DEGUSSA

    Inventor： GOERL UDO DR ,  SCHMITT MATTHIAS ,  STOBER REINHARD DR

    IPC: C08J3/16 ,  C08J3/12 ,  C08J3/215 ,  C08K3/36 ,  C08K9/06 ,  C08L21/00 ,  C08L21/02 ,  C09C1/30 ,  C09C3/12

    Abstract: Preparation of silicate and/or oxygenic filler-containing rubber powder or granulate, based on aqueous rubber emulsion or latex, involves suspension of silicate and/or filler, polysiloxane hydrophobizing agent and nonionic surfactant in water, adjustment of the pH to 2.5-7, separation of the deposited rubber powder from the solid particles, and drying the powdered or granulated product to a moisture content of less than 3%. A process for preparation of silicate and/or oxygenic filler-containing rubber powder or granulate based on aqueous rubber emulsion or latexes involves: (a) suspension of a silicate and/or oxygenic filler, polysiloxane hydrophobizing agent(s) (in amount 0.5-7% relative to the filler) and nonionic surfactant(s) (in amount 0.1-2% relative to the filler) at 10-60 degrees C in water, giving a suspension of density 0.5-5%, (b) addition of the rubber latex emulsion to the filler suspension with stirring, (c) adjustment of the pH of the aqueous mixture with an acid, preferably sulfuric acid or aluminum sulfate to a pH of 2.5-7, (d) separation of the deposited rubber powder from the process water by, for example, solid/liquid separation of the solid particles, (e) molding of the filter cake, and (f) drying of the powdered or granulated product to an end moisture content of less than 3%.

    RUBBER GRANULES CONTAINING SILICATES AND OXIDS AS STUFFING
    12.
    发明专利
    RUBBER GRANULES CONTAINING SILICATES AND OXIDS AS STUFFING 未知

    公开(公告)号：HU0203554A2

    公开(公告)日：2004-04-28

    申请号：HU0203554

    申请日：2002-10-17

    Applicant: DEGUSSA

    Inventor： GOERL UDO DR ,  SCHMITT MATTHIAS ,  STOBER REINHARD DR

    IPC: C08J3/12 ,  C08J3/16 ,  C08J3/215 ,  C08K3/36 ,  C08K9/06 ,  C08L21/00 ,  C08L21/02 ,  C08J3/09

    Abstract: Preparation of silicate and/or oxygenic filler-containing rubber powder or granulate, based on aqueous rubber emulsion or latex, involves suspension of silicate and/or filler, polysiloxane hydrophobizing agent and nonionic surfactant in water, adjustment of the pH to 2.5-7, separation of the deposited rubber powder from the solid particles, and drying the powdered or granulated product to a moisture content of less than 3%. A process for preparation of silicate and/or oxygenic filler-containing rubber powder or granulate based on aqueous rubber emulsion or latexes involves: (a) suspension of a silicate and/or oxygenic filler, polysiloxane hydrophobizing agent(s) (in amount 0.5-7% relative to the filler) and nonionic surfactant(s) (in amount 0.1-2% relative to the filler) at 10-60 degrees C in water, giving a suspension of density 0.5-5%, (b) addition of the rubber latex emulsion to the filler suspension with stirring, (c) adjustment of the pH of the aqueous mixture with an acid, preferably sulfuric acid or aluminum sulfate to a pH of 2.5-7, (d) separation of the deposited rubber powder from the process water by, for example, solid/liquid separation of the solid particles, (e) molding of the filter cake, and (f) drying of the powdered or granulated product to an end moisture content of less than 3%.

    13.
    发明专利
    未知

    公开(公告)号：DE19702046A1

    公开(公告)日：1998-01-22

    申请号：DE19702046

    申请日：1997-01-22

    Applicant: DEGUSSA

    Inventor： GOERL UDO DR ,  LAMBERTZ HORST

    IPC: C07F7/18 ,  C08K5/54 ,  C08K5/548 ,  C08L21/00 ,  C08L9/00 ,  B60C1/00

    Abstract: The invention relates to the organic silanpolysulphane mixture of the general formula (RO)3 Si (CH2)xS-Sz-S(CH2)xSi (ОR)3 (I) where R – linear or branched C1-8 alkyl, in particular C1-3 alkyl X – the whole number 1-8 z – the whole number 0-6; the total organic silanpolysulphane with z=0 or z=1 representing at least 80 mass % in the mixture providing that the fraction with z=0 is below 80% while the fraction with z equal 2 through 6 does not exceed 20%. The invention relates also to the rubber compositions on the basis of these mixtures in particular for the tracks of the tire protectors.

    18.
    发明专利
    未知

    公开(公告)号：AT125559T

    公开(公告)日：1995-08-15

    申请号：AT92121026

    申请日：1992-12-10

    Applicant: DEGUSSA

    Inventor： MEIER KARL ,  GOERL UDO DR ,  WOLFF SIEGFRIED DR

    IPC: C08J5/10 ,  C08K3/36 ,  C08K5/13 ,  C08K13/02 ,  C09C1/30

    Abstract: The invention relates to blends of resorcinol and silica which are employed as adhesion promoter for improving the adhesion between textile or metallic strengthening supports and rubber or plastics and have a greatly restricted sublimation behaviour with respect to resorcinol.

    20.
    发明专利
    未知

    公开(公告)号：DE59003893D1

    公开(公告)日：1994-01-27

    申请号：DE59003893

    申请日：1990-12-24

    Applicant: DEGUSSA

    Inventor： WOLFF SIEGFRIED DR ,  GOERL UDO DR ,  DEUSSER HANS DR

    IPC: C08K9/00 ,  C08K9/06 ,  C08L21/00 ,  C09C1/30 ,  C09C3/12

    Abstract: Surface modification of natural or synthetic oxidic or silicate fillers (I) comprises using one or more organosilicon cpds. of formula: (R'n(RO)3-nSi-(Alc)m-(Ar)p)q(B) (I). In (I), B = -SCN (when q = 1) or -Sx- (when q = 2); R and R' = 1-4C alkyl, phenyl in which every R and R' is identical or different, R = 1-4C-alkyl-1-4C-alkoxy gp.; n = 0, 1 or 2; alc = bivalent, linear or branched 1-6C hydrocarbon; m = 0 or 1; Ar = 6-12C arylene gp.; p = 0 or 1 (p+m does not equal 0); x = 2-8. The novelty is that: (a) at least one organosilicon cpd. is intensively mixed with the filler at temps. less than 60 deg.C in a concn. of up to 3.5 x 10 power (-6) mol. trialkoxysilyl gps. on a square meter of filler surface; (b) followed by hydrophobising the homogenised mixt. in a preheated mixer, tempered bed or another suitable heated reaction vessel at temps. larger than 60 deg.C.

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