FR800563A - Improvements in papermaking - Google Patents
Improvements in papermakingInfo
- Publication number
- FR800563A FR800563A FR800563DA FR800563A FR 800563 A FR800563 A FR 800563A FR 800563D A FR800563D A FR 800563DA FR 800563 A FR800563 A FR 800563A
- Authority
- FR
- France
- Prior art keywords
- papermaking
- 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
-
- 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15620A US2018490A (en) | 1935-04-10 | 1935-04-10 | Method of producing paper pulp from fibrous material |
Publications (1)
Publication Number | Publication Date |
---|---|
FR800563A true FR800563A (en) | 1936-07-08 |
Family
ID=21772490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR800563D Expired FR800563A (en) | 1935-04-10 | 1936-01-13 | Improvements in papermaking |
Country Status (3)
Country | Link |
---|---|
US (1) | US2018490A (en) |
FR (1) | FR800563A (en) |
GB (1) | GB460812A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2706159A (en) * | 1951-03-09 | 1955-04-12 | American Enka Corp | Manufacture of artificial sponges |
US2823121A (en) * | 1952-05-27 | 1958-02-11 | Rayonier Inc | Wood pulp preparation |
US2924547A (en) * | 1954-11-08 | 1960-02-09 | Hawaiian Dev Company Ltd | Rapid neutral sulfite process for pulping bagasse and other non-woody plant lignocellulose |
-
1935
- 1935-04-10 US US15620A patent/US2018490A/en not_active Expired - Lifetime
-
1936
- 1936-01-06 GB GB499/36A patent/GB460812A/en not_active Expired
- 1936-01-13 FR FR800563D patent/FR800563A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2018490A (en) | 1935-10-22 |
GB460812A (en) | 1937-02-04 |
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