GB301088A - - Google Patents
Info
- Publication number
- GB301088A GB301088A GB34592/28A GB3459228A GB301088A GB 301088 A GB301088 A GB 301088A GB 34592/28 A GB34592/28 A GB 34592/28A GB 3459228 A GB3459228 A GB 3459228A GB 301088 A GB301088 A GB 301088A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkali
- caustic alkali
- per cent
- mass
- dried
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
- C08B1/08—Alkali cellulose
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)
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
Abstract
301,088. Zellstofffabrik Waldhof, Hottenroth, V., and Faust, O. Nov. 24, 1927, [Convention date]. Preparatory treatment of cellulose.-The reactivity of cellulosic material of all kinds is increased by treating it with caustic alkali liquor containing less than 18 per cent of alkali, pressing to remove excess of alkali and thereafter subjecting the material saturated with caustic alkali to a ripening process followed by a washing treatment to remove the caustic alkali. In an example, air-dried bleached sulphite cellulose is immersed in 12 per cent soda lye and pressed off to about three times the original weight. The expressed mass is separated into fibres and stored in sheet metal drums for 5 days at 25‹ C., after which time the mass is washed, acidified, and neutralized. The material can be dried in known manner or used directly in the moist state. Reference has been directed by the Comptroller to Specifications 212,864 and 212,865.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE301088T | 1927-11-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB301088A true GB301088A (en) | 1930-03-24 |
Family
ID=31894290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34592/28A Expired GB301088A (en) | 1927-11-24 | 1928-11-23 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB301088A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2638415A (en) * | 1948-01-14 | 1953-05-12 | Celanese Corp | Production of cellulose |
-
1928
- 1928-11-23 GB GB34592/28A patent/GB301088A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2638415A (en) * | 1948-01-14 | 1953-05-12 | Celanese Corp | Production of cellulose |
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