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A Process For Preparing Structurally Modified Silica
Abstract: A structurally coated silica can be prepared by spraying and mixing a pyrogenic silica with water and a coating asen: in a suitable rnixina vessel, then milling: and then conditioning the product. The structurally coated silica can be used as a matting agent in lacquers.
Notices, Deadlines & Correspondence
Patent Information
Applicants
DEGUSSA AG
Inventors
1. MEYER, Jurgen
2. SPITZNAGEL, Kurt
3. CHRISTIAN, Hans-Dieter
Specification
•Claims: I- A structurally coated silica.
2. A structurally coated silica as claimed in claim 1, wherein it
has a carbon content of 10 to 30 wt. %.
3. A structurally coated silica as claimed in claim 1, wherein it
has a BET surface area of 80 to 45: m~/g.
4. A structurally coated silica as claimed in claims 1 or lr
wherein it has a bulk density of 10 to 60 g/i.
5. A structurally coated silica as claimed in claims 1 to 3,
wherein it has a D3? index of 2.4 to 3.9.
6. A process for preparing a structurally coated silica as
claimed in claims 1 to 4, wherein a pyrogenic silica is
sprayed and mixed with water and a coating agent in a suitable
mixing vessel and is then milled and subsequently dried.
7. Use of structurally coated silicas as claimed in claims 1 to 4
as matting agents in lacquers.
8. Lacquers and/or lacquer systems, wherein they contain a
structurally coated silica as claimed in claims 1 to 4.
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 1275-chenp-2005-abstract.pdf | 2011-09-03 |
| 1 | 1275-chenp-2005-pct.pdf | 2011-09-03 |
| 2 | 1275-chenp-2005-claims.pdf | 2011-09-03 |
| 2 | 1275-chenp-2005-form18.pdf | 2011-09-03 |
| 3 | 1275-chenp-2005-correspondnece-others.pdf | 2011-09-03 |
| 3 | 1275-chenp-2005-form 5.pdf | 2011-09-03 |
| 4 | 1275-chenp-2005-correspondnece-po.pdf | 2011-09-03 |
| 4 | 1275-chenp-2005-form 3.pdf | 2011-09-03 |
| 5 | 1275-chenp-2005-form 1.pdf | 2011-09-03 |
| 5 | 1275-chenp-2005-description(complete).pdf | 2011-09-03 |
| 6 | 1275-chenp-2005-description(complete).pdf | 2011-09-03 |
| 6 | 1275-chenp-2005-form 1.pdf | 2011-09-03 |
| 7 | 1275-chenp-2005-correspondnece-po.pdf | 2011-09-03 |
| 7 | 1275-chenp-2005-form 3.pdf | 2011-09-03 |
| 8 | 1275-chenp-2005-correspondnece-others.pdf | 2011-09-03 |
| 8 | 1275-chenp-2005-form 5.pdf | 2011-09-03 |
| 9 | 1275-chenp-2005-claims.pdf | 2011-09-03 |
| 9 | 1275-chenp-2005-form18.pdf | 2011-09-03 |
| 10 | 1275-chenp-2005-pct.pdf | 2011-09-03 |
| 10 | 1275-chenp-2005-abstract.pdf | 2011-09-03 |