FI823479A0 - Framstaellningsfoerfarande foer cellulosaetrar - Google Patents
Framstaellningsfoerfarande foer cellulosaetrarInfo
- Publication number
- FI823479A0 FI823479A0 FI823479A FI823479A FI823479A0 FI 823479 A0 FI823479 A0 FI 823479A0 FI 823479 A FI823479 A FI 823479A FI 823479 A FI823479 A FI 823479A FI 823479 A0 FI823479 A0 FI 823479A0
- Authority
- FI
- Finland
- Prior art keywords
- cellulosaetrar
- framstaellningsfoerfarande foer
- framstaellningsfoerfarande
- foer
- foer cellulosaetrar
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B11/00—Preparation of cellulose ethers
- C08B11/193—Mixed ethers, i.e. ethers with two or more different etherifying groups
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813140813 DE3140813A1 (de) | 1981-10-14 | 1981-10-14 | Verfahren zur herstellung von celluloseethern |
DE3140813 | 1981-10-14 |
Publications (4)
Publication Number | Publication Date |
---|---|
FI823479A0 true FI823479A0 (fi) | 1982-10-12 |
FI823479L FI823479L (fi) | 1983-04-15 |
FI72125B FI72125B (fi) | 1986-12-31 |
FI72125C FI72125C (fi) | 1987-04-13 |
Family
ID=6144095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI823479A FI72125C (fi) | 1981-10-14 | 1982-10-12 | Foerfarande foer framstaellning av hydroxietylmetylcellulosa. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4438264A (fi) |
EP (1) | EP0076988B1 (fi) |
JP (1) | JPS5876401A (fi) |
DE (2) | DE3140813A1 (fi) |
FI (1) | FI72125C (fi) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE520715C2 (sv) * | 2001-12-03 | 2003-08-12 | Akzo Nobel Nv | Förfarande för framställning av metylcellulosaetrar |
JP5586186B2 (ja) * | 2009-08-06 | 2014-09-10 | 株式会社プレックス | アルカリセルロースまたはその誘導体の製造方法。 |
BR112016012006B1 (pt) * | 2013-11-25 | 2021-09-14 | Hercules Incorporated | Método para a preparação de éteres de alquil hidróxialquil celulose |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2137343A (en) * | 1937-08-30 | 1938-11-22 | Du Pont | Chemical process |
GB654014A (en) * | 1948-10-07 | 1951-05-30 | British Celanese | Improvements in the production of cellulose ethers |
DE1468048B2 (de) * | 1964-11-28 | 1975-02-20 | Henkel & Cie Gmbh, 4000 Duesseldorf | Verfahren zur Herstellung von Hydroxypropyl-methylcellulosen |
US3446795A (en) * | 1965-04-16 | 1969-05-27 | Dow Chemical Co | Mixed cellulose ethers |
CA981252A (en) * | 1971-04-29 | 1976-01-06 | Ronald L. Glomski | Cellulose ether thickener for latex paint |
US3709876A (en) * | 1972-04-10 | 1973-01-09 | Dow Chemical Co | Water soluble hydroxyethyl methyl cellulose ether thickener for latex paint |
US4015067A (en) * | 1975-08-18 | 1977-03-29 | The Dow Chemical Company | Method of preparing polysaccharide ethers and apparatus |
-
1981
- 1981-10-14 DE DE19813140813 patent/DE3140813A1/de not_active Withdrawn
-
1982
- 1982-09-24 US US06/423,272 patent/US4438264A/en not_active Expired - Fee Related
- 1982-10-02 EP EP82109107A patent/EP0076988B1/de not_active Expired
- 1982-10-02 DE DE8282109107T patent/DE3277840D1/de not_active Expired
- 1982-10-08 JP JP57176448A patent/JPS5876401A/ja active Pending
- 1982-10-12 FI FI823479A patent/FI72125C/fi not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US4438264A (en) | 1984-03-20 |
EP0076988A2 (de) | 1983-04-20 |
FI72125C (fi) | 1987-04-13 |
DE3140813A1 (de) | 1983-04-21 |
EP0076988B1 (de) | 1987-12-16 |
JPS5876401A (ja) | 1983-05-09 |
EP0076988A3 (en) | 1984-07-25 |
FI823479L (fi) | 1983-04-15 |
DE3277840D1 (en) | 1988-01-28 |
FI72125B (fi) | 1986-12-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed |
Owner name: WOLFF WALSRODE AKTIENGESELLSCHAFT |