JPS4891302A - - Google Patents
Info
- Publication number
- JPS4891302A JPS4891302A JP1522673A JP1522673A JPS4891302A JP S4891302 A JPS4891302 A JP S4891302A JP 1522673 A JP1522673 A JP 1522673A JP 1522673 A JP1522673 A JP 1522673A JP S4891302 A JPS4891302 A JP S4891302A
- Authority
- JP
- Japan
- 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.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/001—Modification of pulp properties
- D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
- D21C9/004—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives inorganic compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
- D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US22459372A | 1972-02-08 | 1972-02-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4891302A true JPS4891302A (en) | 1973-11-28 |
| JPS5134481B2 JPS5134481B2 (en) | 1976-09-27 |
Family
ID=22841332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1522673A Expired JPS5134481B2 (en) | 1972-02-08 | 1973-02-08 |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5134481B2 (en) |
| CA (1) | CA996312A (en) |
| FI (1) | FI54945C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3347522B1 (en) * | 2015-09-07 | 2020-06-17 | Domsjö Fabriker AB | Novel dissolving pulp |
-
1973
- 1973-01-19 FI FI14673A patent/FI54945C/en active
- 1973-02-07 CA CA163,066A patent/CA996312A/en not_active Expired
- 1973-02-08 JP JP1522673A patent/JPS5134481B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5134481B2 (en) | 1976-09-27 |
| CA996312A (en) | 1976-09-07 |
| FI54945B (en) | 1978-12-29 |
| FI54945C (en) | 1979-04-10 |