DD158228A5 - Pyrogen hergestellte kieselsaeure und verfahren zu ihrer herstellung - Google Patents

Pyrogen hergestellte kieselsaeure und verfahren zu ihrer herstellung Download PDF

Info

Publication number: DD158228A5
Authority: DD; German Democratic Republic
Prior art keywords: silica; mixture; mpas; siloxane; hexamethyldisiloxane
Prior art date: 1980-04-25

Application number

DD81229359A

Other languages

German (de)

English (en)

Inventor

Rudolf Schwarz

Peter Kleinschmit

Original Assignee

Degussa

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1980-04-25

Filing date

1981-04-21

Publication date

1983-01-05

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6100961&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DD158228(A5) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1981-04-21 Application filed by Degussa filed Critical Degussa

1983-01-05 Publication of DD158228A5 publication Critical patent/DD158228A5/de

Links

VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 64
239000000377 silicon dioxide Substances 0.000 title claims abstract description 25
238000000034 method Methods 0.000 title claims abstract description 10
238000004519 manufacturing process Methods 0.000 title claims abstract description 8
239000000203 mixture Substances 0.000 claims abstract description 21
UQEAIHBTYFGYIE-UHFFFAOYSA-N hexamethyldisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)C UQEAIHBTYFGYIE-UHFFFAOYSA-N 0.000 claims abstract description 13
VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 claims abstract description 10
239000005049 silicon tetrachloride Substances 0.000 claims abstract description 10
239000002994 raw material Substances 0.000 claims abstract description 7
JLUFWMXJHAVVNN-UHFFFAOYSA-N methyltrichlorosilane Chemical compound C[Si](Cl)(Cl)Cl JLUFWMXJHAVVNN-UHFFFAOYSA-N 0.000 claims abstract description 4
239000001257 hydrogen Substances 0.000 claims description 12
229910052739 hydrogen Inorganic materials 0.000 claims description 12
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 11
KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 10
101000588924 Anthopleura elegantissima Delta-actitoxin-Ael1a Proteins 0.000 claims description 5
-1 siloxanes Chemical class 0.000 claims description 5
239000005055 methyl trichlorosilane Substances 0.000 claims description 3
229910052710 silicon Inorganic materials 0.000 claims description 3
239000010703 silicon Substances 0.000 claims description 3
229920006305 unsaturated polyester Polymers 0.000 claims description 3
239000004215 Carbon black (E152) Substances 0.000 claims description 2
229930195733 hydrocarbon Natural products 0.000 claims description 2
150000002430 hydrocarbons Chemical class 0.000 claims description 2
239000007858 starting material Substances 0.000 claims description 2
230000001698 pyrogenic effect Effects 0.000 abstract description 3
230000008719 thickening Effects 0.000 description 17
229910021485 fumed silica Inorganic materials 0.000 description 15
230000000694 effects Effects 0.000 description 11
238000012360 testing method Methods 0.000 description 10
239000000047 product Substances 0.000 description 8
238000001816 cooling Methods 0.000 description 6
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
239000007795 chemical reaction product Substances 0.000 description 5
239000003973 paint Substances 0.000 description 5
239000004033 plastic Substances 0.000 description 5
239000000606 toothpaste Substances 0.000 description 5
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
239000006185 dispersion Substances 0.000 description 4
238000002360 preparation method Methods 0.000 description 4
229940034610 toothpaste Drugs 0.000 description 4
229920006337 unsaturated polyester resin Polymers 0.000 description 4
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
239000000460 chlorine Substances 0.000 description 3
229910052801 chlorine Inorganic materials 0.000 description 3
239000011159 matrix material Substances 0.000 description 3
239000006072 paste Substances 0.000 description 3
229920001225 polyester resin Polymers 0.000 description 3
239000004645 polyester resin Substances 0.000 description 3
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
229910004298 SiO 2 Inorganic materials 0.000 description 2
PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
238000006243 chemical reaction Methods 0.000 description 2
238000001914 filtration Methods 0.000 description 2
239000007789 gas Substances 0.000 description 2
239000007788 liquid Substances 0.000 description 2
229910052757 nitrogen Inorganic materials 0.000 description 2
239000001301 oxygen Substances 0.000 description 2
229910052760 oxygen Inorganic materials 0.000 description 2
239000012188 paraffin wax Substances 0.000 description 2
235000012239 silicon dioxide Nutrition 0.000 description 2
239000000126 substance Substances 0.000 description 2
239000002562 thickening agent Substances 0.000 description 2
FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
229910019142 PO4 Inorganic materials 0.000 description 1
BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
239000002253 acid Substances 0.000 description 1
229910002092 carbon dioxide Inorganic materials 0.000 description 1
239000001569 carbon dioxide Substances 0.000 description 1
239000003153 chemical reaction reagent Substances 0.000 description 1
238000010276 construction Methods 0.000 description 1
DDJSWKLBKSLAAZ-UHFFFAOYSA-N cyclotetrasiloxane Chemical compound O1[SiH2]O[SiH2]O[SiH2]O[SiH2]1 DDJSWKLBKSLAAZ-UHFFFAOYSA-N 0.000 description 1
230000007423 decrease Effects 0.000 description 1
239000000551 dentifrice Substances 0.000 description 1
238000009826 distribution Methods 0.000 description 1
238000011156 evaluation Methods 0.000 description 1
238000009472 formulation Methods 0.000 description 1
235000011187 glycerol Nutrition 0.000 description 1
150000002431 hydrogen Chemical class 0.000 description 1
IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
229910000041 hydrogen chloride Inorganic materials 0.000 description 1
230000007062 hydrolysis Effects 0.000 description 1
238000006460 hydrolysis reaction Methods 0.000 description 1
238000003475 lamination Methods 0.000 description 1
LXCFILQKKLGQFO-UHFFFAOYSA-N methylparaben Chemical compound COC(=O)C1=CC=C(O)C=C1 LXCFILQKKLGQFO-UHFFFAOYSA-N 0.000 description 1
CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 1
239000003921 oil Substances 0.000 description 1
239000002245 particle Substances 0.000 description 1
239000010452 phosphate Substances 0.000 description 1
125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 1
CKRORYDHXIRZCH-UHFFFAOYSA-N phosphoric acid;dihydrate Chemical compound O.O.OP(O)(O)=O CKRORYDHXIRZCH-UHFFFAOYSA-N 0.000 description 1
239000011541 reaction mixture Substances 0.000 description 1
238000007670 refining Methods 0.000 description 1
229920005989 resin Polymers 0.000 description 1
239000011347 resin Substances 0.000 description 1
238000000926 separation method Methods 0.000 description 1
229910000077 silane Inorganic materials 0.000 description 1
RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
125000005624 silicic acid group Chemical class 0.000 description 1
XUIMIQQOPSSXEZ-AKLPVKDBSA-N silicon-31 atom Chemical compound [31Si] XUIMIQQOPSSXEZ-AKLPVKDBSA-N 0.000 description 1
239000000600 sorbitol Substances 0.000 description 1
238000005496 tempering Methods 0.000 description 1
238000010998 test method Methods 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/25—Silicon; Compounds thereof
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q11/00—Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
- C01B33/181—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by a dry process
- C01B33/183—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by a dry process by oxidation or hydrolysis in the vapour phase of silicon compounds such as halides, trichlorosilane, monosilane
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability

Landscapes

Chemical & Material Sciences (AREA)
Health & Medical Sciences (AREA)
Organic Chemistry (AREA)
Life Sciences & Earth Sciences (AREA)
Animal Behavior & Ethology (AREA)
Veterinary Medicine (AREA)
Public Health (AREA)
Inorganic Chemistry (AREA)
General Health & Medical Sciences (AREA)
Polymers & Plastics (AREA)
Epidemiology (AREA)
Birds (AREA)
Medicinal Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Oral & Maxillofacial Surgery (AREA)
Silicon Compounds (AREA)
Cosmetics (AREA)
Catalysts (AREA)
Saccharide Compounds (AREA)

DD81229359A 1980-04-25 1981-04-21 Pyrogen hergestellte kieselsaeure und verfahren zu ihrer herstellung DD158228A5 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE3016010A DE3016010C2 (de)	1980-04-25	1980-04-25	Verfahren zur pyrogenen Herstellung von Kieselsäure

Publications (1)

Publication Number	Publication Date
DD158228A5 true DD158228A5 (de)	1983-01-05

Family

ID=6100961

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DD81229359A DD158228A5 (de)	1980-04-25	1981-04-21	Pyrogen hergestellte kieselsaeure und verfahren zu ihrer herstellung

Country Status (7)

Country	Link
EP (2)	EP0092024B1 (fr)
JP (2)	JPS56164009A (fr)
AT (1)	ATE14562T1 (fr)
BR (1)	BR8102491A (fr)
DD (1)	DD158228A5 (fr)
DE (2)	DE3016010C2 (fr)
SU (1)	SU1421256A3 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4386117A (en) *	1981-11-20	1983-05-31	Gordon Roy G	Coating process using alkoxy substituted silicon-bearing reactant
GB8905966D0 (en) *	1989-03-15	1989-04-26	Tsl Group Plc	Improved vitreous silica products
US5152819A (en) *	1990-08-16	1992-10-06	Corning Incorporated	Method of making fused silica
JP2001524064A (ja)	1996-12-16	2001-11-27	コーニングインコーポレイテッド	ゲルマニウム添加シリカ形成供給原料および方法
KR20000076000A (ko)	1997-03-07	2000-12-26	알프레드 엘. 미첼슨	티타니아-도핑 용융 실리카의 제조 방법
RU2154126C1 (ru) *	1999-06-01	2000-08-10	Дагестанский государственный университет	Способ получения пероксомонокремниевой кислоты
DE19936478A1 (de) *	1999-08-03	2001-02-15	Degussa	Sinterwerkstoffe
EP1122212B1 (fr) *	1999-11-11	2003-07-09	Degussa AG	Particules composites nanostructurées de noir de carbone et de silice pyrogénique
DE10302914B4 (de) *	2003-01-24	2005-12-29	Heraeus Quarzglas Gmbh & Co. Kg	Verfahren zur Herstellung von synthetischem Quarzglas
DE10326049A1 (de) *	2003-06-10	2004-12-30	Degussa Ag	Flammenhydrolytisch hergestelltes Siliciumdioxid, Verfahren zu seiner Herstellung und Verwendung
JP4756040B2 (ja) *	2005-05-19	2011-08-24	株式会社トクヤマ	微粒子状シリカ
DE102011121356A1 (de)	2011-12-19	2013-06-20	Heraeus Quarzglas Gmbh & Co. Kg	Verfahren zur Herstellung von synthetischem Quarzglas
CN105492110B (zh)	2013-07-11	2017-05-03	赢创德固赛有限公司	具有可变增稠效果的硅酸的制备方法
EP3002262B1 (fr)	2014-10-01	2018-06-27	Heraeus Quarzglas GmbH & Co. KG	Procédé de fabrication de verre de quartz synthétique au moyen d'un polyalkylsiloxane polymérisable
EP3034476A1 (fr)	2014-12-16	2016-06-22	Heraeus Quarzglas GmbH & Co. KG	Procédé de fabrication de verre de quartz synthétique à l'aide d'un dispositif de purification
EP3059212A1 (fr)	2015-02-18	2016-08-24	Heraeus Quarzglas GmbH & Co. KG	Procédé et dispositif de fabrication de verre de silice à partir de polyalkaylsiloxane polymérisable avec un filtre membrane comme dispositif de purification
EP3428135A1 (fr)	2017-07-14	2019-01-16	Evonik Degussa GmbH	Matériaux calorifuges à base d'acides siliciques hautement épaississant
CN116715244B (zh) *	2023-06-14	2024-06-11	扬州大学	一种高纯二氧化硅的合成方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2399687A (en) *	1942-05-29	1946-05-07	Goodrich Co B F	Preparation of finely-divided silicon dioxide
US3086851A (en) *	1957-10-10	1963-04-23	Degussa	Burner for production of finely divided oxides
DE1933291C3 (de) *	1969-07-01	1978-12-14	Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt	Hochdisperses weißes Siliciumdioxid
GB1348372A (en) *	1970-02-16	1974-03-13	Ici Ltd	Foam-compatible powder compositions
DE2123233C3 (de) *	1971-05-11	1977-10-13	Degussa	Feinteiliges grossoberflaechiges siliciumdioxid
US3772427A (en) *	1971-06-14	1973-11-13	Gen Electric	Combustion process for producing high surface area silica
BE790704A (fr) *	1971-10-28	1973-02-15	Degussa	Procede pour la fabrication d'oxydes finement
DE2344388B2 (de) *	1973-09-03	1978-06-22	Elektroschmelzwerk Kempten Gmbh, 8000 Muenchen	Verfahren zum Herstellen von hydrophobem Siliciumdioxyd
DE2403783C2 (de) *	1974-01-26	1982-10-21	Bayer Ag, 5090 Leverkusen	Verfahren zur Herstellung hydrophobierter pyrogener Kieselsäure
DE2620737C2 (de) *	1976-05-11	1982-07-29	Wacker-Chemie GmbH, 8000 München	Verfahren zum Herstellen von hochdispersem Siliciumdioxid
DE2904199A1 (de) *	1979-02-05	1980-08-07	Degussa	Verfahren zur gelenkten herstellung von kieselsaeure mittels flammenhydrolyse
DE2909815C2 (de)	1979-03-13	1984-11-22	Wacker-Chemie GmbH, 8000 München	Verfahren zur Herstellung von hochdispersem Siliciumdioxid

1980
- 1980-04-25 DE DE3016010A patent/DE3016010C2/de not_active Expired
1981
- 1981-01-21 DE DE8181100412T patent/DE3162719D1/de not_active Expired
- 1981-01-21 EP EP83100856A patent/EP0092024B1/fr not_active Expired
- 1981-01-21 EP EP81100412A patent/EP0038900B1/fr not_active Expired
- 1981-01-21 AT AT83100856T patent/ATE14562T1/de not_active IP Right Cessation
- 1981-03-02 SU SU813252703A patent/SU1421256A3/ru active
- 1981-04-21 JP JP5925781A patent/JPS56164009A/ja active Granted
- 1981-04-21 DD DD81229359A patent/DD158228A5/de unknown
- 1981-04-24 BR BR8102491A patent/BR8102491A/pt unknown
1984
- 1984-10-25 JP JP59223136A patent/JPS60127215A/ja active Granted

Also Published As

Publication number	Publication date
ATE14562T1 (de)	1985-08-15
JPS60127215A (ja)	1985-07-06
DE3162719D1 (en)	1984-04-26
SU1421256A3 (ru)	1988-08-30
EP0092024B1 (fr)	1985-07-31
EP0038900B1 (fr)	1984-03-21
DE3016010C2 (de)	1985-01-10
JPS6116733B2 (fr)	1986-05-01
EP0038900A1 (fr)	1981-11-04
BR8102491A (pt)	1982-01-05
JPS56164009A (en)	1981-12-16
JPH0131456B2 (fr)	1989-06-26
EP0092024A1 (fr)	1983-10-26
DE3016010A1 (de)	1981-10-29

Publication	Publication Date	Title
EP0038900B1 (fr)	1984-03-21	Procédé pour le préparation de la silice pyrogenique
EP1801073B1 (fr)	2011-05-18	Dioxyde de silicium pyrogéniquement préparé
DE69300206T2 (de)	1995-11-09	Umweltfreundliche, wässrige Konzentraten zur Färbung von Anstricher und dergleichen.
EP0033843B1 (fr)	1983-02-09	Silice précipitée contenant du cérium, procédé pour sa production et masses durcissant sous forme d'élastomères la contenant
EP1284277A1 (fr)	2003-02-19	Particule d oxyde de metal recouverte de silice
DE3732265C2 (fr)	1990-04-19
EP1197472A1 (fr)	2002-04-17	Mélange d' oxyde de fer de dioxyde de silicium et de dioxyde de titane
DE2844052A1 (de)	1980-04-30	Waessrige dispersion einer hydrophoben kieselsaeure
DE102004004147A1 (de)	2005-08-18	Oberflächenmodifizierte, mit Siliziumdioxid umhüllte Metalloid/Metalloxide
DE10260718A1 (de)	2004-07-08	Mit Siliziumdioxid umhülltes Titandioxid
DE10258857A1 (de)	2004-07-08	Pyrogen hergestelltes Siliciumdioxid und Dispersion hiervon
DE2854109C3 (de)	1981-11-12	Nagellack
EP0032176A1 (fr)	1981-07-22	Composition calorifuge et procédé pour sa préparation
EP0419759A2 (fr)	1991-04-03	Dérivés d'hydroxyacides gras comprenant de l'aluminium, du magnésium et des lipogels thermostabiles préparés avec ceux-ci
EP1681266A2 (fr)	2006-07-19	Silice pyrogénique et masse d'étanchéité à base de silicone la contenant
EP1801166A1 (fr)	2007-06-27	Dioxyde de silicium pyrogéniquement préparé et silanisé
DE10258858A1 (de)	2004-08-05	Pyrogen hergestelltes Siliciumdioxid
DE69502788T2 (de)	1999-02-25	Zinkoxid enthaltende Kieselsäure und Verfahren zu ihrer Herstellung
DE2442678A1 (de)	1975-03-27	Titandioxid-pigment
DE60012151T2 (de)	2005-08-25	Deodorantzusammensetzungen
EP0748621A2 (fr)	1996-12-18	Nouvelles compositions de catalyseurs/réticulants, leur procédé de préparation et utilisation
EP0546421A1 (fr)	1993-06-16	Peinture pour façades et enduit ayant une résistance initiale plus élévée vis-à-vis de l'eau
DE3050746C2 (de)	1985-03-14	Verfahren zur pyrogenen Herstellung von Kieselsäure
DE2065572C3 (de)	1978-08-31	Hochdisperses, hydrophobiertes Siliciumdioxid
DE102005027720A1 (de)	2006-12-21	Alkalimetalloxid enthaltendes Mischoxidpulver und Siliconkautschuk enthaltend dieses Pulver