NO171997C - Fremgangsmaate og apparat for forbedring av egenskapene til trefibre i mekanisk masse ved sulfonering i flere trinn - Google Patents
Fremgangsmaate og apparat for forbedring av egenskapene til trefibre i mekanisk masse ved sulfonering i flere trinnInfo
- Publication number
- NO171997C NO171997C NO855245A NO855245A NO171997C NO 171997 C NO171997 C NO 171997C NO 855245 A NO855245 A NO 855245A NO 855245 A NO855245 A NO 855245A NO 171997 C NO171997 C NO 171997C
- Authority
- NO
- Norway
- Prior art keywords
- sulphonation
- fiber
- improving
- procedure
- multiple steps
- Prior art date
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
- D21C3/22—Other features of pulping processes
- D21C3/26—Multistage processes
- D21C3/266—Multistage processes the same pulping agent being used in all stages
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)
- Multicomponent Fibers (AREA)
- Preliminary Treatment Of Fibers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/687,977 US4708771A (en) | 1984-12-31 | 1984-12-31 | Two stage process for sulfonating mechanical pulp fibers |
Publications (3)
Publication Number | Publication Date |
---|---|
NO855245L NO855245L (no) | 1986-07-01 |
NO171997B NO171997B (no) | 1993-02-15 |
NO171997C true NO171997C (no) | 1993-05-26 |
Family
ID=24762615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO855245A NO171997C (no) | 1984-12-31 | 1985-12-23 | Fremgangsmaate og apparat for forbedring av egenskapene til trefibre i mekanisk masse ved sulfonering i flere trinn |
Country Status (6)
Country | Link |
---|---|
US (1) | US4708771A (no) |
AU (1) | AU588006B2 (no) |
CA (1) | CA1250702A (no) |
FI (1) | FI90441C (no) |
NO (1) | NO171997C (no) |
SE (1) | SE468818B (no) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5522967A (en) * | 1994-05-27 | 1996-06-04 | Kimberly-Clark Corporation | Sulfonated cellulose and method of preparation |
US5703225A (en) * | 1995-12-13 | 1997-12-30 | Kimberly-Clark Worldwide, Inc. | Sulfonated cellulose having improved absorbent properties |
US6500947B1 (en) * | 2001-08-24 | 2002-12-31 | Weyerhaeuser Company | Superabsorbent polymer |
US20030034136A1 (en) * | 2002-07-19 | 2003-02-20 | Neogi Amar N. | Superabsorbent cellulosic fiber |
US20030035950A1 (en) * | 2002-07-19 | 2003-02-20 | Neogi Amar N. | Superabsorbent cellulosic fiber |
US20030034137A1 (en) * | 2002-07-19 | 2003-02-20 | Neogi Amar N. | Superabsorbent cellulosic fiber |
US20030024663A1 (en) * | 2002-07-19 | 2003-02-06 | Neogi Amar N. | Superabsorbent cellulosic fiber |
US20100175840A1 (en) * | 2007-06-12 | 2010-07-15 | Hart Peter W | High yield and enhanced performance fiber |
US20080308239A1 (en) | 2007-06-12 | 2008-12-18 | Hart Peter W | Fiber blend having high yield and enhanced pulp performance and method for making same |
WO2008153565A1 (en) | 2007-06-12 | 2008-12-18 | Meadwestvaco Corporation | A fiber blend having high yield and enhanced pulp performance and method for making same |
GB201304717D0 (en) | 2013-03-15 | 2013-05-01 | Imerys Minerals Ltd | Paper composition |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA554831A (en) * | 1958-03-25 | A. Ohlin Erik | Method of producing semi-pulp from wood | |
US179103A (en) * | 1876-06-27 | Improvement in the processes for manufacturing paper-pulp from wood | ||
US3711366A (en) * | 1966-08-03 | 1973-01-16 | Kokusaku Pulp Ind Co Ltd | Digesting lignocellulosic material with sodium hydroxymethylsulfonate |
US3607618A (en) * | 1967-11-06 | 1971-09-21 | Process Dev Corp | Wood-pulping process |
CA1075857A (en) * | 1976-02-20 | 1980-04-22 | Price Company Limited (The) | Chemical pretreatment of wood prior to making refiner groundwood |
US4145246A (en) * | 1976-07-19 | 1979-03-20 | Crown Zellerbach Corporation | Process for making high-strength, high-yield sulfite-modified thermomechanical pulp and a linerboard composition produced therefrom |
CA1071805A (en) * | 1977-10-25 | 1980-02-19 | Ontario Paper Company Limited (The) | Drainage and wet stretch improvement in mechanical pulps |
CA1177607A (en) * | 1981-06-10 | 1984-11-13 | David M. Mackie | Chemical treatment of mechanical wood pulp |
US4502918A (en) * | 1981-06-10 | 1985-03-05 | Macmillan Bloedel Limited | Two-stage chemical treatment of mechanical wood pulp with sodium sulfite |
US4486267A (en) * | 1983-11-14 | 1984-12-04 | Mead Corporation | Chemithermomechanical pulping process employing separate alkali and sulfite treatments |
-
1984
- 1984-12-31 US US06/687,977 patent/US4708771A/en not_active Expired - Fee Related
-
1985
- 1985-06-28 CA CA000485865A patent/CA1250702A/en not_active Expired
- 1985-11-22 AU AU50277/85A patent/AU588006B2/en not_active Ceased
- 1985-12-20 FI FI855119A patent/FI90441C/fi not_active IP Right Cessation
- 1985-12-20 SE SE8506079A patent/SE468818B/sv not_active IP Right Cessation
- 1985-12-23 NO NO855245A patent/NO171997C/no unknown
Also Published As
Publication number | Publication date |
---|---|
CA1250702A (en) | 1989-03-07 |
FI855119A0 (fi) | 1985-12-20 |
FI90441C (fi) | 1994-02-10 |
US4708771A (en) | 1987-11-24 |
FI90441B (fi) | 1993-10-29 |
NO855245L (no) | 1986-07-01 |
SE8506079L (sv) | 1986-07-01 |
FI855119A (fi) | 1986-07-01 |
AU5027785A (en) | 1986-07-10 |
SE468818B (sv) | 1993-03-22 |
NO171997B (no) | 1993-02-15 |
AU588006B2 (en) | 1989-09-07 |
SE8506079D0 (sv) | 1985-12-20 |
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