公开(公告)号：ES2141693T3

公开(公告)日：2002-09-16

申请号：ES98116279

申请日：1998-08-28

Applicant: DEGUSSA

Inventor： UHRLANDT STEFAN DR ,  SIRAY MUSTAFA DR ,  BLUME ANKE DR ,  FREUND BURKHARD DR

IPC: C01B33/193 ,  C08K3/36 ,  C01B33/187

Abstract: New precipitated silica has a BET surface of 120-300 m /g, a CTAB surface of 100-300 m /g, a BET/CTAB ratio of 0.8-1.3, a Sears number (0.1N-sodium hydroxide required) of 6-25 ml, a DBP number of 150-300 g/100 g, a WK coefficient of less than 3.4 and particle sizes of less than 1.0 and 1.0-100 microns for degraded and undegradable particles respectively. Independent claims are also included for (a) a process for the production of this precipitated silica by reacting alkali silicate (preferably sodium waterglass) with mineral acid (preferably sulphuric acid) at 60-95 degrees C and pH 7.0-11.0 with continuous stirring, continuing reaction to a solid content of 40-100 g/l, adjusting to pH 3-5, filtering off the silica, washing, drying and possibly milling or granulating, (b) vulcanisable rubber mixtures and vulcanised rubber containing this silica as a filler.

公开(公告)号：ES2167632T3

公开(公告)日：2002-05-16

申请号：ES97104452

申请日：1997-03-15

Applicant: DEGUSSA

Inventor： KARL ALFONS DR ,  VOGEL KARL DR ,  FREUND BURKHARD DR

IPC: B60C11/00 ,  C08K3/04 ,  B60C1/00 ,  C08K9/02 ,  C08L21/00 ,  C09C1/50

Abstract: Carbon black having a CTAB surface area of 40-180 m /g, a 24M4-DBP-absorption of 20-140 ml/100 g and a specific BET surface area of 80-250 m /g contains 0.01-15 wt.% silicon. Production of the carbon black is also claimed.

公开(公告)号：ES2165718T3

公开(公告)日：2002-03-16

申请号：ES99115208

申请日：1999-07-31

Applicant: DEGUSSA

Inventor： BLUME ANKE DR ,  FREUND BURKHARD DR ,  SCHWAIGER BERNHARD ,  SIRAY MUSTAFA DR ,  UHRLANDT STEFAN DR

IPC: C01B33/021 ,  C01B33/193 ,  C08K3/36 ,  C08L21/00 ,  C09C1/30

Abstract: Precipitated silica with an aluminum oxide (Al2O3) content of 0.2-5.0 wt. % and a wk coefficient of less than 3.4. Independent claims are also included for: (a) a process for the production of this silica by reacting alkali silicate solution with mineral acid and aluminum salt solution in aqueous medium at 60-95 degrees C and pH 7.0-10.0 until the mixture has a solid content of 40-110 g/l, then adjusting to pH 3-5 and working up by known methods; and (b) vulcanizable rubber mixtures and vulcanized rubber containing this silica as filler.

公开(公告)号：AT212954T

公开(公告)日：2002-02-15

申请号：AT98116279

申请日：1998-08-28

Applicant: DEGUSSA

Inventor： UHRLANDT STEFAN DR ,  SIRAY MUSTAFA DR ,  BLUME ANKE DR ,  FREUND BURKHARD DR

IPC: C01B33/187 ,  C01B33/193 ,  C08K3/36

Abstract: New precipitated silica has a BET surface of 120-300 m /g, a CTAB surface of 100-300 m /g, a BET/CTAB ratio of 0.8-1.3, a Sears number (0.1N-sodium hydroxide required) of 6-25 ml, a DBP number of 150-300 g/100 g, a WK coefficient of less than 3.4 and particle sizes of less than 1.0 and 1.0-100 microns for degraded and undegradable particles respectively. Independent claims are also included for (a) a process for the production of this precipitated silica by reacting alkali silicate (preferably sodium waterglass) with mineral acid (preferably sulphuric acid) at 60-95 degrees C and pH 7.0-11.0 with continuous stirring, continuing reaction to a solid content of 40-100 g/l, adjusting to pH 3-5, filtering off the silica, washing, drying and possibly milling or granulating, (b) vulcanisable rubber mixtures and vulcanised rubber containing this silica as a filler.

公开(公告)号：BR9803966A

公开(公告)日：1999-12-07

申请号：BR9803966

申请日：1998-09-14

Applicant: DEGUSSA

Inventor： UHRLANDT STEFAN DR ,  SIRAY MUSTAFA DR ,  BLUME ANKE DR ,  FREUND BURKHARD DR

IPC: C01B33/187 ,  C01B33/193 ,  C08K3/36 ,  C09C1/30

Abstract: New precipitated silica has a BET surface of 120-300 m /g, a CTAB surface of 100-300 m /g, a BET/CTAB ratio of 0.8-1.3, a Sears number (0.1N-sodium hydroxide required) of 6-25 ml, a DBP number of 150-300 g/100 g, a WK coefficient of less than 3.4 and particle sizes of less than 1.0 and 1.0-100 microns for degraded and undegradable particles respectively. Independent claims are also included for (a) a process for the production of this precipitated silica by reacting alkali silicate (preferably sodium waterglass) with mineral acid (preferably sulphuric acid) at 60-95 degrees C and pH 7.0-11.0 with continuous stirring, continuing reaction to a solid content of 40-100 g/l, adjusting to pH 3-5, filtering off the silica, washing, drying and possibly milling or granulating, (b) vulcanisable rubber mixtures and vulcanised rubber containing this silica as a filler.

公开(公告)号：DE19613796A1

公开(公告)日：1997-10-09

申请号：DE19613796

申请日：1996-04-04

Applicant: DEGUSSA

Inventor： KARL ALFONS DR ,  FREUND BURKHARD DR ,  VOGEL KARL DR

IPC: B60C1/00 ,  B60C11/00 ,  C08K3/04 ,  C08K9/02 ,  C08L21/00 ,  C09C1/50

Abstract: Carbon black having a CTAB surface area of 40-180 m /g, a 24M4-DBP-absorption of 20-140 ml/100 g and a specific BET surface area of 80-250 m /g contains 0.01-15 wt.% silicon. Production of the carbon black is also claimed.

公开(公告)号：DE50214782D1

公开(公告)日：2011-01-05

申请号：DE50214782

申请日：2002-02-08

Applicant: EVONIK DEGUSSA GMBH

Inventor： FREUND BURKHARD DR

IPC: C09C1/50 ,  B29C48/03 ,  B29K105/16 ,  C08K3/04 ,  C09C1/48

公开(公告)号：CZ20020549A3

公开(公告)日：2002-10-16

申请号：CZ20020549

申请日：2002-02-13

Applicant: DEGUSSA

Inventor： FREUND BURKHARD DR

IPC: B29C47/00 ,  B29K105/16 ,  C08K3/04 ,  C09C1/48 ,  C09C1/50

CPC classification number: C09C1/50 ,  C01P2004/51 ,  C01P2006/12 ,  C01P2006/19 ,  C08K3/04 ,  C08L21/00

公开(公告)号：CZ9904535A3

公开(公告)日：2001-04-11

申请号：CZ453599

申请日：1999-12-14

Applicant: DEGUSSA

Inventor： FREUND BURKHARD DR ,  LUGINSLAND HANS-DETLEF DR

IPC: C08K5/50 ,  C08K5/524 ,  C08K5/54 ,  C08L21/00

公开(公告)号：ID25932A

公开(公告)日：2000-11-16

申请号：ID991129

申请日：1999-12-08

Applicant: DEGUSSA

Inventor： LUGINSLAND HANS-DETLEF DR ,  FREUND BURKHARD DR

IPC: C08L21/00 ,  C08K5/49 ,  C08K5/5397 ,  C08K5/54 ,  C08K5/548 ,  C08L19/00

Abstract: A rubber mixture contains at least one organosilanepolysulfane and at least one phosphorus compound as desulfuring reagent. Independent claims are included for: (1) preparation of a rubber mixture by mixing a rubber, at least one filler, an organosilanepolysulfane (OSPS), and a desulfuring reagent; (2) a molded body obtained from the rubber mixture.