DE3171634D1 - Silica prepared in the pyrogenic way, and process for its preparation - Google Patents

Silica prepared in the pyrogenic way, and process for its preparation

Info

Publication number
DE3171634D1
DE3171634D1 DE8383100856T DE3171634T DE3171634D1 DE 3171634 D1 DE3171634 D1 DE 3171634D1 DE 8383100856 T DE8383100856 T DE 8383100856T DE 3171634 T DE3171634 T DE 3171634T DE 3171634 D1 DE3171634 D1 DE 3171634D1
Authority
DE
Germany
Prior art keywords
preparation
silica prepared
pyrogenic
way
pyrogenic way
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DE8383100856T
Other languages
German (de)
Inventor
Rudolf Dr Schwarz
Peter Dr Kleinschmit
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
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.)
Filing date
Publication date
Priority claimed from DE3016010A external-priority patent/DE3016010C2/en
Application filed by Degussa GmbH filed Critical Degussa GmbH
Priority to DE8383100856T priority Critical patent/DE3171634D1/en
Application granted granted Critical
Publication of DE3171634D1 publication Critical patent/DE3171634D1/en
Expired legal-status Critical Current

Links

DE8383100856T 1980-04-25 1981-01-21 Silica prepared in the pyrogenic way, and process for its preparation Expired DE3171634D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8383100856T DE3171634D1 (en) 1980-04-25 1981-01-21 Silica prepared in the pyrogenic way, and process for its preparation

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3016010A DE3016010C2 (en) 1980-04-25 1980-04-25 Process for the pyrogenic production of silica
EP81100412A EP0038900B1 (en) 1980-04-25 1981-01-21 Process for the production of pyrogenic silica
DE8383100856T DE3171634D1 (en) 1980-04-25 1981-01-21 Silica prepared in the pyrogenic way, and process for its preparation

Publications (1)

Publication Number Publication Date
DE3171634D1 true DE3171634D1 (en) 1985-09-05

Family

ID=25785148

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383100856T Expired DE3171634D1 (en) 1980-04-25 1981-01-21 Silica prepared in the pyrogenic way, and process for its preparation

Country Status (2)

Country Link
AT (1) ATE6763T1 (en)
DE (1) DE3171634D1 (en)

Also Published As

Publication number Publication date
ATE6763T1 (en) 1984-04-15

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
8339 Ceased/non-payment of the annual fee