公开(公告)号：JP2003160668A

公开(公告)日：2003-06-03

申请号：JP2002300980

申请日：2002-10-15

Applicant: DEGUSSA

Inventor： GOERL UDO DR ,  STOBER REINHARD ,  SCHMITT MATTHIAS

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

Abstract: PROBLEM TO BE SOLVED: To provide a method of manufacturing rubber powder or a rubber granule containing a silica filler and/or an oxidizing filler based on an aqueous rubber emulsion or a latex. SOLUTION: The manufacturing method comprizes preparing a water suspension of a silica filler and/or an oxidizing filler, a hydrophobicity imparting agent comprizing a polysiloxane and a nonionic surfactant, adding a rubber latex emulsion, adjusting pH with an acid, separating a precipitated product, drying and finally reducing its moisture content to less than 3%. COPYRIGHT: (C)2003,JPO

公开(公告)号：JPH09176383A

公开(公告)日：1997-07-08

申请号：JP25032096

申请日：1996-09-20

Applicant: DEGUSSA

Inventor： GOERL UDO DR ,  LAMBERTZ HORST ,  WOLFF WILHELM DR

IPC: B60C1/00 ,  C08K3/00 ,  C08K3/04 ,  C08K3/34 ,  C08K3/36 ,  C08K5/00 ,  C08K5/548 ,  C08L9/06 ,  C08K5/54

公开(公告)号：DK0519188T3

公开(公告)日：1997-06-09

申请号：DK92107270

申请日：1992-04-29

Applicant: DEGUSSA

Inventor： WOLFF SIEGFRIED DR ,  GOERL UDO DR

IPC: C08K3/02 ,  C08K3/04 ,  C08K3/34 ,  C08J3/20 ,  C08K5/54 ,  C08K5/544 ,  C08K9/00 ,  C08K9/06 ,  C08L9/00 ,  C08L21/00 ,  C08L101/00

Abstract: The invention relates to a process for the preparation of carbon black-filled plastic and rubber mixtures, in which an organosilicon compound is employed and is reacted in situ with the carbon black.

公开(公告)号：DE58909316D1

公开(公告)日：1995-08-03

申请号：DE58909316

申请日：1989-03-18

Applicant: DEGUSSA

Inventor： HELLWIG GEORG DR ,  STOBER REINHARD DR ,  KLATTE CHRISTOPH ,  DESCHLER ULRICH DR ,  WOLFF SIEGFRIED DR ,  GOERL UDO DR

IPC: C07D251/38 ,  C08K3/00 ,  C08K3/04 ,  C08K3/36 ,  C08K5/36 ,  C08K5/37 ,  C08K5/378 ,  C08L21/00

公开(公告)号：AT124404T

公开(公告)日：1995-07-15

申请号：AT89104878

申请日：1989-03-18

Applicant: DEGUSSA

Inventor： HELLWIG GEORG DR ,  STOBER REINHARD DR ,  KLATTE CHRISTOPH ,  DESCHLER ULRICH DR ,  WOLFF SIEGFRIED DR ,  GOERL UDO DR

IPC: C07D251/38 ,  C08K3/00 ,  C08K3/04 ,  C08K3/36 ,  C08K5/36 ,  C08K5/37 ,  C08K5/378 ,  C08L21/00

公开(公告)号：BR9404019A

公开(公告)日：1995-06-27

申请号：BR9404019

申请日：1994-10-07

Applicant: DEGUSSA

Inventor： ESCH HEINZ ,  GOERL UDO DR ,  KUHLMANN ROBERT ,  RAUSCH RALF DR

IPC: C01B33/12 ,  C01B33/187 ,  C01B33/193 ,  C08J3/24 ,  C08K3/00 ,  C08K3/36 ,  C08L21/00 ,  C08L83/04

Abstract: A precipitate of silica having the following physicochemical parameters: BET surface area: from 35 to 350 m /g Ratio of BET/CTAB surface area: from 0.8 to 1.1 Pore volume PV: from 1.6 to 3.4 ml/g Silanol group density (V2 = consumption of NaOH): from 6 to 20 ml Mean aggregate size: from 250 to 1500 nm CTAB surface area: from 30 to 350 m /g DBP number: from 150 to 300 ml/100 g V2/V1 according to Hg porosimetry: from 0.19 to 0.46 DBP/CTAB: from 1.2 to 2.4 is prepared by reacting alkali metal silicate with mineral acids at temperatures of from 60 to 95 DEG C while maintaining a pH of from 7.5 to 10.5 with continuous stirring, continuing the reaction to a solids concentration in the precipitate suspension of from 80 to 120 g/l, adjusting the pH to a value equal to or less than 5, filtering off, washing, drying and, if desired, milling or granulating the precipitated silica. The precipitated silica is used as filler in vulcanisable rubber mixtures and vulcanisates.

公开(公告)号：DE4202023A1

公开(公告)日：1993-07-29

申请号：DE4202023

申请日：1992-01-25

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.

公开(公告)号：DE4029158A1

公开(公告)日：1992-03-19

申请号：DE4029158

申请日：1990-09-14

Applicant: DEGUSSA

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

IPC: C01B33/12 ,  C08J3/22 ,  C08K3/00 ,  C08K3/18 ,  C08K3/22 ,  C08K3/34 ,  C08K3/36 ,  C08L21/00 ,  C09C1/04 ,  C09C1/28 ,  C09C1/30

Abstract: The invention relates to granules comprising zinc oxide and precipitated silicic acid which are readily dispersible in rubber blends, to a process for their production, and to their use.

公开(公告)号：DE4004781A1

公开(公告)日：1991-08-22

申请号：DE4004781

申请日：1990-02-16

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.

公开(公告)号：AT357471T

公开(公告)日：2007-04-15

申请号：AT03103814

申请日：2003-10-15

Applicant: DEGUSSA

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

IPC: C08J3/205 ,  C08J3/215 ,  C09C1/00 ,  C09C3/10 ,  C09D11/00 ,  C08J3/03 ,  C08J3/16

Abstract: Continuous production of filled rubber granules comprises introducing an aqueous filler composition and a rubber latex through separate inlets into a reactor with a high-speed stirrer and coagulating the latex by lowering the pH and/or adding a water-soluble Group IIa, IIb, IIIa or VIII metal salt.