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    41.
    发明专利
    未知

    公开(公告)号：BR9603193A

    公开(公告)日：2007-02-21

    申请号：BR9603193

    申请日：1996-07-25

    Applicant: DEGUSSA

    Inventor： TUERK GUENTER ,  SCHMIDT GEROLD ,  SIRAY MUSTAFA ,  MEIER KARL

    IPC: C01B33/193 ,  H01M2/16 ,  C01B33/12

    Abstract: Precipitated silicic acid has a BET surface area of 100-130m /g (DIN 66131); a DBP absorption (water-free (DIN53601) ASTM D244 of plus or minus 275g/100g, a dry loss (2 hrs./105 degrees C) of 3.5-5.5 wt.% (DIN ISO787/11,ASTM D280, JISK5101/21), and a sieve residue with ALPINE air sieve of plus or minus 10;0 wt.% (

    42.
    发明专利
    未知

    公开(公告)号：PT901986E

    公开(公告)日：2002-07-31

    申请号：PT98116279

    申请日：1998-08-28

    Applicant: DEGUSSA

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

    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.

    43.
    发明专利
    未知

    公开(公告)号：DE19840153A1

    公开(公告)日：2000-04-20

    申请号：DE19840153

    申请日：1998-09-03

    Applicant: DEGUSSA

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

    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.

    44.
    发明专利
    未知

    公开(公告)号：TR199801831A2

    公开(公告)日：1999-10-21

    申请号：TR9801831

    申请日：1998-09-15

    Applicant: DEGUSSA

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

    IPC: C01B33/193 ,  C08K3/36 ,  C01B33/187 ,  C09C1/30 ,  B60C1/00

    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.

    Precipitated silica
    45.
    发明专利
    Precipitated silica 未知

    公开(公告)号：AU9707698A

    公开(公告)日：1999-07-01

    申请号：AU9707698

    申请日：1998-12-11

    Applicant: DEGUSSA

    Inventor： SIRAY MUSTAFA ,  SCHEFFLER JOCHEN

    IPC: C01B33/18 ,  C01B33/193 ,  C09C1/28 ,  C09C1/30 ,  C09C3/00 ,  C09D7/00 ,  C01B33/12

    Abstract: Precipitated silica with the specified physical-chemical parameters is new. Precipitated silica (I) with the following physical-chemical parameters is new: BET surface area = 400-600 m /g to DIN 66131; dibutyl phthalate (DBP) value = 300-360 g/100 g to DIN 53601; tamped density = 70-140 g/l to DIN 53194; grindometer value = 15-50 mu m to ISO 1524; particle size distribution index I = less than 1.0 by Malvern method, I = (d90 - d10)/2d50. Independent claims are also included for (a) precipitated silica (II) coated with a polyethylene wax emulsion and having specified physical chemical parameters; (b) the production of (I); and (c) the production of (II).

    47.
    发明专利
    未知

    公开(公告)号：TR199600452A2

    公开(公告)日：1996-12-21

    申请号：TR9600452

    申请日：1996-05-31

    Applicant: DEGUSSA

    Inventor： GORL DR UDO ,  HUNSCHE ANDREA ,  KUHLMANN ROBERT ,  SIRAY MUSTAFA ,  ESCH HEINZ

    IPC: C01B33/193 ,  C08K3/00 ,  C08K3/36 ,  C08K9/00 ,  C01B33/187 ,  C08K9/06 ,  C08L21/00 ,  C09C1/30

    Abstract: - Pptd. SiO2 (I) has a CTAB surface area (to ASTM D 3765-92) of 200-400 m /g, a DBP no. (to ASTM D 2414) between 230 and 380 ml/100 g as powder and 180-250 g/100 g as granulate; a silanol gp. density (V2 consumption of NaOH) of 20-30 ml; and a typical macropore size distribution for each surface area, determined by HG porosimetry (DIN 66133) for certain pore size intervals (incremental plot). For CTAB surface areas of (A) 200-250, (B) 250-3300, (C) 300-400 m /g, the Hg consumption is (A) 0.27-0.49, (B) 0.35-0.50, (C) 0.32-0.42 ml/g for 10-20 nm pores; (A) 0.22-0.32, (B) 0.15-0.30, (C) 0.17-0.22 ml/g for 20-30 nm pores; (A) 0.15-0.21, (B) 0.12-0.17, (C) 0.12-0.15 ml/g for 30-40 nm pores; (A) 0.11-0.16, (B) 0.09-0.12, (C) 0.08-0.11 ml/g for 40-50 nm pores; and (A) 0.08-0.12, (B) 0.06-0.10, (C) 0.06-0.09 ml/g for 50-60 nm pores. Also claimed are vulcanisable rubber blends contg. 5-100, esp. 15-60 phr (I); and rubber blends and/or vulcanisates contg. opt. silane-modified (I).

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