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Precipitated Silica
Abstract: The precipitated silica has the following physico-chemical parameters: BET surface area (DIN 66131) in m2/g 400 - 600 DBP index (DIN 53601) in g/100 g 300 - 360 Compacted density (DIN 53194) in g/1 70 - 140 Grindometer value (ISO 1524) in µm 15 - 50 Size distribution index I < 1.0 measured with a Malvern intrument Size distribution index I = It is prepared by milling a precipitated silica in accordance with DE-A 31 44 299 in a classifier mill or a fluidised bed counter-flow mill. A polyethylene wax emulsion may be added before the milling procedure. The precipitated silica then has the following physico-chemical parameters: BET surface area (DIN 66131) in m2/g 351 - 600 DBP index (DIN 53601) as a % 300 - 360 Carbon content as a % 1-8 Compacted density (DIN 53194) in g/1 70 - 140 Grindometer value (ISO 1524) in µm 15 - 50 Size distribution index I < 1.0 The precipitated silicas may be used as matting agents in lacquer systems.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
10 December 1998
Publication Number
48/05
Publication Type
INA
Invention Field
CHEMICAL
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2007-01-12
Renewal Date
Applicants
DEGUSSA AG
BENNIGSENPLATZ 1 D-40474 DUSSELDORF GERMANY.
Inventors
1. DR. MUSTAFA SIRAY
MICHAEL-LEVEILLY-STRASSE 14, DE-53127 BONN
2. DR. JOCHEN SCHEFFLER
KANTSTRASSE 7, DE-63755 ALZENAU.
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 2159-CAL-1998-11-01-2023-RENEWAL AND FER.pdf | 2023-01-11 |
| 1 | 2159-CAL-1998-LETTER OF PATENT CERTIFICATE-[12-01-2007].pdf | 2007-01-12 |
| 2 | 2159-CAL-1998-PA.pdf | 2011-10-07 |
| 2 | 2159-CAL-1998-RELEVANT DOCUMENTS [04-03-2019(online)].pdf | 2019-03-04 |
| 3 | 2159-CAL-1998-RELEVANT DOCUMENTS [22-03-2018(online)].pdf | 2018-03-22 |
| 3 | 2159-cal-1998-granted-translated copy of priority document.pdf | 2011-10-07 |
| 4 | Form 27 [18-03-2017(online)].pdf | 2017-03-18 |
| 4 | 2159-cal-1998-granted-specification.pdf | 2011-10-07 |
| 5 | 2159-cal-1998-granted-reply to examination report.pdf | 2011-10-07 |
| 5 | 2159-CAL-1998-(02-03-2016)-FORM-27.pdf | 2016-03-02 |
| 6 | 2159-cal-1998-granted-priority document.pdf | 2011-10-07 |
| 6 | 2159-CAL-1998-Correspondence-030315.pdf | 2015-04-01 |
| 7 | 2159-cal-1998-granted-letter patent.pdf | 2011-10-07 |
| 7 | 2159-CAL-1998-Form 27-030315.pdf | 2015-04-01 |
| 8 | 2159-cal-1998-granted-gpa.pdf | 2011-10-07 |
| 8 | 2159-CAL-1998-FORM-27.pdf | 2013-04-12 |
| 9 | 02159-cal-1998 abstract.pdf | 2011-10-07 |
| 9 | 2159-cal-1998-granted-form 6.pdf | 2011-10-07 |
| 10 | 02159-cal-1998 claims.pdf | 2011-10-07 |
| 10 | 2159-cal-1998-granted-form 3.pdf | 2011-10-07 |
| 11 | 02159-cal-1998 correspondence.pdf | 2011-10-07 |
| 11 | 2159-cal-1998-granted-form 2.pdf | 2011-10-07 |
| 12 | 02159-cal-1998 description(complete).pdf | 2011-10-07 |
| 12 | 2159-cal-1998-granted-form 1.pdf | 2011-10-07 |
| 13 | 02159-cal-1998 drawings.pdf | 2011-10-07 |
| 13 | 2159-cal-1998-granted-examination report.pdf | 2011-10-07 |
| 14 | 02159-cal-1998 form-1.pdf | 2011-10-07 |
| 14 | 2159-cal-1998-granted-drawings.pdf | 2011-10-07 |
| 15 | 02159-cal-1998 form-2.pdf | 2011-10-07 |
| 15 | 2159-cal-1998-granted-description (complete).pdf | 2011-10-07 |
| 16 | 02159-cal-1998 form-3.pdf | 2011-10-07 |
| 16 | 2159-cal-1998-granted-correspondence.pdf | 2011-10-07 |
| 17 | 2159-cal-1998-granted-claims.pdf | 2011-10-07 |
| 17 | 02159-cal-1998 form-5.pdf | 2011-10-07 |
| 18 | 02159-cal-1998 g.p.a.pdf | 2011-10-07 |
| 18 | 2159-cal-1998-granted-abstract.pdf | 2011-10-07 |
| 19 | 02159-cal-1998 priority document others.pdf | 2011-10-07 |
| 19 | 2159-CAL-1998-FORM 27.pdf | 2011-10-07 |
| 20 | 02159-cal-1998 priority document.pdf | 2011-10-07 |
| 20 | 2159-CAL-1998-CORRESPONDENCE 1.1.pdf | 2011-10-07 |
| 21 | 02159-cal-1998 priority document.pdf | 2011-10-07 |
| 21 | 2159-CAL-1998-CORRESPONDENCE 1.1.pdf | 2011-10-07 |
| 22 | 02159-cal-1998 priority document others.pdf | 2011-10-07 |
| 22 | 2159-CAL-1998-FORM 27.pdf | 2011-10-07 |
| 23 | 02159-cal-1998 g.p.a.pdf | 2011-10-07 |
| 23 | 2159-cal-1998-granted-abstract.pdf | 2011-10-07 |
| 24 | 2159-cal-1998-granted-claims.pdf | 2011-10-07 |
| 24 | 02159-cal-1998 form-5.pdf | 2011-10-07 |
| 25 | 02159-cal-1998 form-3.pdf | 2011-10-07 |
| 25 | 2159-cal-1998-granted-correspondence.pdf | 2011-10-07 |
| 26 | 02159-cal-1998 form-2.pdf | 2011-10-07 |
| 26 | 2159-cal-1998-granted-description (complete).pdf | 2011-10-07 |
| 27 | 02159-cal-1998 form-1.pdf | 2011-10-07 |
| 27 | 2159-cal-1998-granted-drawings.pdf | 2011-10-07 |
| 28 | 02159-cal-1998 drawings.pdf | 2011-10-07 |
| 28 | 2159-cal-1998-granted-examination report.pdf | 2011-10-07 |
| 29 | 02159-cal-1998 description(complete).pdf | 2011-10-07 |
| 29 | 2159-cal-1998-granted-form 1.pdf | 2011-10-07 |
| 30 | 02159-cal-1998 correspondence.pdf | 2011-10-07 |
| 30 | 2159-cal-1998-granted-form 2.pdf | 2011-10-07 |
| 31 | 02159-cal-1998 claims.pdf | 2011-10-07 |
| 31 | 2159-cal-1998-granted-form 3.pdf | 2011-10-07 |
| 32 | 02159-cal-1998 abstract.pdf | 2011-10-07 |
| 32 | 2159-cal-1998-granted-form 6.pdf | 2011-10-07 |
| 33 | 2159-CAL-1998-FORM-27.pdf | 2013-04-12 |
| 33 | 2159-cal-1998-granted-gpa.pdf | 2011-10-07 |
| 34 | 2159-CAL-1998-Form 27-030315.pdf | 2015-04-01 |
| 34 | 2159-cal-1998-granted-letter patent.pdf | 2011-10-07 |
| 35 | 2159-CAL-1998-Correspondence-030315.pdf | 2015-04-01 |
| 35 | 2159-cal-1998-granted-priority document.pdf | 2011-10-07 |
| 36 | 2159-CAL-1998-(02-03-2016)-FORM-27.pdf | 2016-03-02 |
| 36 | 2159-cal-1998-granted-reply to examination report.pdf | 2011-10-07 |
| 37 | Form 27 [18-03-2017(online)].pdf | 2017-03-18 |
| 37 | 2159-cal-1998-granted-specification.pdf | 2011-10-07 |
| 38 | 2159-CAL-1998-RELEVANT DOCUMENTS [22-03-2018(online)].pdf | 2018-03-22 |
| 38 | 2159-cal-1998-granted-translated copy of priority document.pdf | 2011-10-07 |
| 39 | 2159-CAL-1998-RELEVANT DOCUMENTS [04-03-2019(online)].pdf | 2019-03-04 |
| 39 | 2159-CAL-1998-PA.pdf | 2011-10-07 |
| 40 | 2159-CAL-1998-LETTER OF PATENT CERTIFICATE-[12-01-2007].pdf | 2007-01-12 |
| 40 | 2159-CAL-1998-11-01-2023-RENEWAL AND FER.pdf | 2023-01-11 |