GB1327197A - Production of silica fibrils - Google Patents
Production of silica fibrilsInfo
- Publication number
- GB1327197A GB1327197A GB5244669A GB1327197DA GB1327197A GB 1327197 A GB1327197 A GB 1327197A GB 5244669 A GB5244669 A GB 5244669A GB 1327197D A GB1327197D A GB 1327197DA GB 1327197 A GB1327197 A GB 1327197A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fibrils
- agent
- suspension
- silica
- water
- 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
Links
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Paper (AREA)
Abstract
1327197 Production of silica fibrils IMPERIAL CHEMICAL INDUSTRIES Ltd 6 Oct 1970 [27 Oct 1969] 52446/69 Heading C1A Silica fibrils are produced by treating a fibrous mineral silicate in suspension in a liquid medium with an agent which removes at least part of the metallic oxide constituent of the fibrous mineral silicate. The fibrils are elongated particles having an axial ratio of at least 10 : 1 and having a width not greater than 0À1 micron. Generally fibrils of 10 to 100 microns in length are produced. It is convenient to make the suspension of fibrous mineral silicate e.g. chrysotile asbestos, attapulgite clay and sepiolite clay, by mechanical and/or with the aid of ultrasonic radiation in a suitable liquid e.g. water. Advantageously a surface-active agent e.g. dodecyl benzene sodium sulphonate and dioctyl esters of sodium sulphosuccinic acid is included preferably at a concentration of 0À1 to 5% by weight of total weight of silicate dispersion. Preferably the agent used to dissolve out the metallic oxide is an acid at a concentration up to 5 molar e.g. hydrochloric, sulphuric, nitric or acetic acids or with acid salts. The treatment, preferably with stirring, is carried out from 20 C. to the B.Pt. of the suspension for generally from 5 minutes to 48 hours. The product of the treatment process is filtered and washed with water to remove soluble inpurities and residual surface-active agent. In cases where water-insoluble surface-active agents are used, washing with a solvent for the surfaceactive agent e.g. methanol or acetone is convenient. The fibril product may then be dispersed in an aqueous medium or in a polar organic liquid or just dried.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5244669 | 1969-10-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1327197A true GB1327197A (en) | 1973-08-15 |
Family
ID=10463951
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5244669A Expired GB1327197A (en) | 1969-10-27 | 1969-10-27 | Production of silica fibrils |
Country Status (9)
Country | Link |
---|---|
AU (1) | AU2134070A (en) |
BE (1) | BE757762A (en) |
DE (1) | DE2052728A1 (en) |
FR (1) | FR2066567A5 (en) |
GB (1) | GB1327197A (en) |
IL (1) | IL35619A0 (en) |
LU (1) | LU61913A1 (en) |
NL (1) | NL7015462A (en) |
ZA (1) | ZA707067B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10759229B2 (en) * | 2011-05-30 | 2020-09-01 | Pirelli Tyre S.P.A. | High performance tyre for vehicle wheels |
-
1969
- 1969-10-27 GB GB5244669A patent/GB1327197A/en not_active Expired
-
1970
- 1970-10-16 ZA ZA707067A patent/ZA707067B/en unknown
- 1970-10-20 BE BE757762D patent/BE757762A/en unknown
- 1970-10-21 AU AU21340/70A patent/AU2134070A/en not_active Expired
- 1970-10-22 NL NL7015462A patent/NL7015462A/xx unknown
- 1970-10-23 LU LU61913D patent/LU61913A1/xx unknown
- 1970-10-25 IL IL35619A patent/IL35619A0/en unknown
- 1970-10-26 FR FR7038630A patent/FR2066567A5/fr not_active Expired
- 1970-10-27 DE DE19702052728 patent/DE2052728A1/de active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10759229B2 (en) * | 2011-05-30 | 2020-09-01 | Pirelli Tyre S.P.A. | High performance tyre for vehicle wheels |
Also Published As
Publication number | Publication date |
---|---|
FR2066567A5 (en) | 1971-08-06 |
BE757762A (en) | 1971-04-20 |
DE2052728A1 (en) | 1971-05-06 |
IL35619A0 (en) | 1971-01-28 |
LU61913A1 (en) | 1971-05-04 |
NL7015462A (en) | 1971-04-29 |
AU2134070A (en) | 1972-04-27 |
ZA707067B (en) | 1971-07-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |