GB599973A - Treatment of high alpha-cellulose pulp to increase the chemical reactivity thereof - Google Patents
Treatment of high alpha-cellulose pulp to increase the chemical reactivity thereofInfo
- Publication number
- GB599973A GB599973A GB24866/45A GB2486645A GB599973A GB 599973 A GB599973 A GB 599973A GB 24866/45 A GB24866/45 A GB 24866/45A GB 2486645 A GB2486645 A GB 2486645A GB 599973 A GB599973 A GB 599973A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- sheet
- roll
- cellulose pulp
- pulp
- 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
- C08B1/02—Rendering cellulose suitable for esterification
Abstract
Machine-dried high alpha cellulose pulp is activated so as to facilitate the subsequent esterification thereof, by impregnating it while in sheet form with glacial acetic acid, propionic acid, butyric acid or a mixture of acetic and propionic or butyric acid in an amount sufficient to dampen the fibres and then immediately disintegrating the sheet into fibres. If desired, the sheet, while still hot from the drying operation, may be impregnated with the acid. The amount of acid taken up by the sheet preferably ranges from 15 to 150 per cent of its weight. Referring to the Figure, a dry sheet of cellulose pulp is withdrawn from roll 1, impregnated with glacial acetic acid on roll 5 and disintegrated by the picker-roll 7. The fluffed pulp falls on to and is carried away by a conveyer 9. If instead of a sheeted roll of pulp, small rectangular sheets are to be treated, then the sheets may be sprayed with the acid and subsequently disintegrated.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US599973XA | 1944-12-05 | 1944-12-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB599973A true GB599973A (en) | 1948-03-25 |
Family
ID=22026667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24866/45A Expired GB599973A (en) | 1944-12-05 | 1945-09-25 | Treatment of high alpha-cellulose pulp to increase the chemical reactivity thereof |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB599973A (en) |
-
1945
- 1945-09-25 GB GB24866/45A patent/GB599973A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB535932A (en) | Process for the manufacture of laminated strips of cellulose ester fibres | |
| NO157186C (en) | PROCEDURE FOR THE PREPARATION OF PAPERS WITH HIGH-DRY AND LOW DRAWN. | |
| GB599973A (en) | Treatment of high alpha-cellulose pulp to increase the chemical reactivity thereof | |
| GB945307A (en) | Papermaking process and product | |
| GB964197A (en) | Improvements in acetylation of cellulose | |
| GB871952A (en) | Improved tobacco products and preparation thereof | |
| US2546749A (en) | Treatment of pulp | |
| GB937935A (en) | Improvements in or relating to the manufacture of paper | |
| GB706522A (en) | Production of organic acid esters of cellulose | |
| GB380822A (en) | Manufacture of cellulose esters | |
| GB299512A (en) | Improvements in or relating to the treatment of cellulose | |
| GB501666A (en) | Improvements in or relating to the treatment of cellulose fabrics | |
| GB626801A (en) | Improvements in the treatment of textile materials | |
| GB463633A (en) | Improvements in or relating to the treatment of absorbent fibrous material | |
| GB471894A (en) | Improvements in the manufacture of mixed esters of cellulose | |
| FR2066674A5 (en) | Paper contg some unbeaten fibres | |
| GB411930A (en) | Treatment of cellulose fibres and fabrics | |
| GB379658A (en) | Manufacture of cellulose esters | |
| GB728536A (en) | Improvements in or relating to preparation of cellulose acetate sorbate | |
| FR2170891A1 (en) | Absorbent sheet mfr - for use in dressings and sanitary towels | |
| GB343986A (en) | Improvements in or relating to the production of cellulose esters and cellulose ester products therefrom | |
| GB791367A (en) | The manufacture of cellulose esters of aliphatic acids | |
| GB374047A (en) | Improvements in or relating to the production of cellulosic products | |
| ES201240A1 (en) | Improvements in and relating to the production of cellulose triesters | |
| GB727019A (en) | Process for treating cellulose and for the manufacture of cellulose in the form of powder |