公开(公告)号：JP2007077012A

公开(公告)日：2007-03-29

申请号：JP2006240438

申请日：2006-09-05

Applicant: Degussa Ag ,  デグサ アクチエンゲゼルシャフトDegussa AG

Inventor： STENZEL OLEG ,  BLUME ANKE DR ,  LUGINSLAND HANS-DETLEF ,  SCHMOLL RALF ,  THOMA HERBERT ,  UHRLANDT STEFAN DR ,  WEHMEIER ANDRE

IPC: C01B33/193 ,  C08K3/36

CPC classification number: C01B33/193 ,  B60C1/0016 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/17 ,  C01P2006/19 ,  C01P2006/90 ,  C09C1/3036 ,  C09C1/3081

Abstract: PROBLEM TO BE SOLVED: To provide precipitated silica exerting the improved applied-technological characteristics when applied as a reinforcing filler in an elastomer mixture. SOLUTION: The precipitated silica is characterized by having the following physicochemical parameters: the relative width γ of pore distribution of 4.0-10.0 (g nm)/mL; Sears number V 2 of 28-40 mL/(5 g); CTAB surface area of 100-200 m 2 /g; and the ratio (Sears number V 2 /CTAB) of 0.18-0.28 mL/(5 m 2 ). The silica is available in the form of powder, nearly spherical particle (microgranule) or granule. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：当在弹性体混合物中用作增强填料时，提供沉淀二氧化硅提供改进的应用技术特性。 解决方案：沉淀二氧化硅的特征在于具有以下物理化学参数：孔分布的相对宽度γ为4.0-10.0（g nm）/ mL; Sears编号V 2 为28-40mL /（5g）; CTAB表面积为100-200 m 2 / g; 和比例（Sears V 2 / CTAB）为0.18-0.28mL /（5m 2 ）。 二氧化硅以粉末，近似球形颗粒（微粒）或颗粒的形式提供。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2003183017A

公开(公告)日：2003-07-03

申请号：JP2002271381

申请日：2002-09-18

Applicant: DEGUSSA

Inventor： BLUME ANKE DR ,  UHRLANDT STEFAN DR ,  SCHMOLL RALF ,  LUGINSLAND DETLEF ,  THOMA HERBERT

IPC: C01B33/12 ,  B60C1/00 ,  C01B33/193 ,  C08K3/34 ,  C08K3/36 ,  C08L21/00 ,  C09C1/30

Abstract: PROBLEM TO BE SOLVED: To provide precipitated silicic acid with an especially high BET/CTAB ratio and its production method and use. SOLUTION: This precipitated silicic acid has a BET surface area ≥135 m 2 /g, a CTAB surface area ≥75 m 2 /g, and a BET/CTAB surface area ratio ≥1.7. COPYRIGHT: (C)2003,JPO

公开(公告)号：BRPI0603769A

公开(公告)日：2007-04-27

申请号：BRPI0603769

申请日：2006-09-08

Applicant: DEGUSSA

Inventor： STENZEL OLEG ,  BLUME ANKE ,  LUGINSLAND HANS-DETLEF ,  SCHMOLL RALF ,  THOMA HERBERT ,  UHRLANDT STEFAN ,  WEHMEIER ANDRE

IPC: C01B33/12 ,  C08C19/25 ,  C09C1/30 ,  C09C3/12

Abstract: Precipitated silicic exhibiting physical-chemical properties such as relative width (gamma ) of the pore size distribution of 4-10 (g nm)/ml, sears number (V2) of 28-40 ml/(5 g), sears number (V2/CTAB) ratio of 0.18-0.28 ml/(5 m 2>) and cetylammonium bromide (CTAB) surface area of 100-200 m 2>/g. Independent claims are included for: (1) the preparation of precipitated silicic acid, comprising (a) subjecting an aqueous solution of alkali or alkaline-earth silicate and/or an organic or an inorganic base, where the submittal exhibited an alkali number of 20-40, (b) adding alkaline and/or alkaline-earth silicate and acidifying agent into the submittal under intensive stirring at 55-85[deg]C to increase viscosity of the solution, (c) terminating the reaction after the addition that takes place for 35-85 minutes, preferably after reaching the temperature of step (b), (d) again adding alkali and/or alkaline-earth silicate and an acidifying agent under agitation at 55-85[deg]C to attain a solid content of 90-140 g/l, (e) adjusting pH of the solution to 2.5-5 by adding the acidifying agent and (f) filtering and drying; (2) vulcanizable rubber mixture and vulcanizate comprising the precipitated silicic acid as filler; and (3) a tire comprising at least a precipitated silicic acid.

公开(公告)号：AU2003242650A1

公开(公告)日：2003-12-31

申请号：AU2003242650

申请日：2003-06-07

Applicant: DEGUSSA

Inventor： UHRLANDT STEFAN ,  THOMA HERBERT ,  BLUME ANKE

IPC: C01B33/18 ,  C01B33/193 ,  C08K3/36 ,  C09C1/28 ,  C09C1/30 ,  C09C3/12

Abstract: The present invention relates to precipitated silica containing aluminum, which has an adjustable BET/CTAB ratio, a process for its manufacture and its use.

公开(公告)号：ZA200207506B

公开(公告)日：2003-05-08

申请号：ZA200207506

申请日：2002-09-19

Applicant: DEGUSSA

Inventor： BLUME ANKE ,  LUGINSLAND DETLEF ,  SCHMOLL RALF ,  THOMA HERBERT ,  UHRLANDT STEFAN

IPC: C01B33/12 ,  B60C1/00 ,  C01B33/193 ,  C08K3/34 ,  C08K3/36 ,  C08L21/00 ,  C09C1/30 ,  C01B ,  C09C ,  C08L

Abstract: A precipitated silicic acid (I) has a BET (Brunauer Emmett Teller) surface area of at least 135 m /g and a CTAB (cetyltrimethylammonium bromide) surface area of at least 75 m /g. The ratio of BET/CTAB surface areas is at least 1.7. Independent claims are also included for the following: (1) a process for the preparation of the silicic acid (I); (2) vulcanizable rubber mixtures and vulcanizates containing (I); and (3) tires (I).

公开(公告)号：DE10146325A1

公开(公告)日：2003-04-10

申请号：DE10146325

申请日：2001-09-20

Applicant: DEGUSSA

Inventor： UHRLANDT STEFAN ,  THOMA HERBERT ,  SCHMOLL RALF ,  BLUME ANKE ,  LUGINSLAND DETLEF

IPC: C01B33/12 ,  B60C1/00 ,  C01B33/193 ,  C08K3/34 ,  C08K3/36 ,  C08L21/00 ,  C09C1/30 ,  C08K9/06

Abstract: A precipitated silicic acid (I) has a BET (Brunauer Emmett Teller) surface area of at least 135 m /g and a CTAB (cetyltrimethylammonium bromide) surface area of at least 75 m /g. The ratio of BET/CTAB surface areas is at least 1.7. Independent claims are also included for the following: (1) a process for the preparation of the silicic acid (I); (2) vulcanizable rubber mixtures and vulcanizates containing (I); and (3) tires (I).

公开(公告)号：CA2403954A1

公开(公告)日：2003-03-20

申请号：CA2403954

申请日：2002-09-18

Applicant: DEGUSSA

Inventor： THOMA HERBERT ,  LUGINSLAND DETLEF ,  UHRLANDT STEFAN ,  BLUME ANKE ,  SCHMOLL RALF

IPC: C01B33/12 ,  B60C1/00 ,  C01B33/193 ,  C08K3/34 ,  C08K3/36 ,  C08L21/00 ,  C09C1/30 ,  C01B33/113 ,  C01B33/18

Abstract: The present invention relates to a precipitated silica having a particularly high BET/CTAB ratio and good degradability and dispersability, to a process for preparing it, and to its use in elastomer blends.

公开(公告)号：DE3445569C1

公开(公告)日：1986-05-22

申请号：DE3445569

申请日：1984-12-14

Applicant: DEGUSSA

Inventor： KAUFMANN LOTHAR DR ,  HELLWIG KLAUS-DIETER ,  THOMA HERBERT

IPC: C09C1/10

公开(公告)号：DE102005043201A1

公开(公告)日：2007-03-15

申请号：DE102005043201

申请日：2005-09-09

Applicant: DEGUSSA

Inventor： STENZEL OLEG ,  BLUME ANKE ,  LUGINSLAND HANS-DETLEF ,  SCHMOLL RALF ,  THOMA HERBERT ,  UHRLANDT STEFAN ,  WEHMEIER ANDRE

IPC: C01B33/18 ,  B60C1/00 ,  C01B33/193 ,  C08K3/36 ,  C08L21/00 ,  C09C3/12

Abstract: Precipitated silicic exhibiting physical-chemical properties such as relative width (gamma ) of the pore size distribution of 4-10 (g nm)/ml, sears number (V2) of 28-40 ml/(5 g), sears number (V2/CTAB) ratio of 0.18-0.28 ml/(5 m 2>) and cetylammonium bromide (CTAB) surface area of 100-200 m 2>/g. Independent claims are included for: (1) the preparation of precipitated silicic acid, comprising (a) subjecting an aqueous solution of alkali or alkaline-earth silicate and/or an organic or an inorganic base, where the submittal exhibited an alkali number of 20-40, (b) adding alkaline and/or alkaline-earth silicate and acidifying agent into the submittal under intensive stirring at 55-85[deg]C to increase viscosity of the solution, (c) terminating the reaction after the addition that takes place for 35-85 minutes, preferably after reaching the temperature of step (b), (d) again adding alkali and/or alkaline-earth silicate and an acidifying agent under agitation at 55-85[deg]C to attain a solid content of 90-140 g/l, (e) adjusting pH of the solution to 2.5-5 by adding the acidifying agent and (f) filtering and drying; (2) vulcanizable rubber mixture and vulcanizate comprising the precipitated silicic acid as filler; and (3) a tire comprising at least a precipitated silicic acid.

公开(公告)号：DE10322214A1

公开(公告)日：2003-12-24

申请号：DE10322214

申请日：2003-05-16

Applicant: DEGUSSA

Inventor： UHRLANDT STEFAN ,  THOMA HERBERT ,  BLUME ANKE

IPC: C01B33/193 ,  C08K3/36 ,  C09C1/28 ,  C09C1/30 ,  C01B33/18