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    31.
    发明专利
    未知

    公开(公告)号：DE59602429D1

    公开(公告)日：1999-08-19

    申请号：DE59602429

    申请日：1996-05-25

    Applicant: DEGUSSA

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

    IPC: C01B33/193 ,  H01M2/16

    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.% (

    34.
    发明专利
    未知

    公开(公告)号：ID16472A

    公开(公告)日：1997-10-02

    申请号：ID961490

    申请日：1996-06-03

    Applicant: DEGUSSA

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

    IPC: C01B33/193 ,  C01B33/187 ,  C08K3/00 ,  C08K3/36 ,  C08K9/00 ,  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).

    36.
    发明专利
    未知

    公开(公告)号：ES2135820T3

    公开(公告)日：1999-11-01

    申请号：ES96108372

    申请日：1996-05-25

    Applicant: DEGUSSA

    Inventor： TURK GUNTER DR ,  SCHMIDT GEROLD ,  SIRAY MUSTAFA DR ,  MEIER KARL

    IPC: C01B33/193 ,  H01M2/16

    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.% (

    38.
    发明专利
    未知

    公开(公告)号：AT182125T

    公开(公告)日：1999-07-15

    申请号：AT96108372

    申请日：1996-05-25

    Applicant: DEGUSSA

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

    IPC: C01B33/193 ,  H01M2/16

    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.% (

    39.
    发明专利
    未知

    公开(公告)号：DE19740440A1

    公开(公告)日：1999-03-18

    申请号：DE19740440

    申请日：1997-09-15

    Applicant: DEGUSSA

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

    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.

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