FI61211C - Foerfarande foer framstaellning av en hoegutbytesmassa laemplig foer absorptionsprodukter - Google Patents

Foerfarande foer framstaellning av en hoegutbytesmassa laemplig foer absorptionsprodukter Download PDF

Info

Publication number: FI61211C
Authority: FI; Finland
Prior art keywords: pulp; content; chips; fibers; sulfur
Prior art date: 1975-11-13

Application number

FI763259A

Other languages

English (en)

Finnish (fi)

Swedish (sv)

Other versions

FI763259A7 (fr

FI61211B (fi

Inventor

Jonas Arne Ingvar Lindahl

Original Assignee

Mo Och Domsjoe Ab

Priority date (The priority date 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 date listed.)

1975-11-13

Filing date

1976-11-12

Publication date

1984-03-30

1976-11-12 Application filed by Mo Och Domsjoe Ab filed Critical Mo Och Domsjoe Ab

1977-05-14 Publication of FI763259A7 publication Critical patent/FI763259A7/fi

1982-02-26 Application granted granted Critical

1982-02-26 Publication of FI61211B publication Critical patent/FI61211B/fi

1984-03-30 Publication of FI61211C publication Critical patent/FI61211C/fi

Links

239000000835 fiber Substances 0.000 claims description 50
238000010521 absorption reaction Methods 0.000 claims description 29
238000000034 method Methods 0.000 claims description 19
239000007788 liquid Substances 0.000 claims description 18
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
239000011347 resin Substances 0.000 claims description 16
229920005989 resin Polymers 0.000 claims description 16
NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 11
239000000463 material Substances 0.000 claims description 11
239000011593 sulfur Substances 0.000 claims description 11
229910052717 sulfur Inorganic materials 0.000 claims description 11
229920001131 Pulp (paper) Polymers 0.000 claims description 9
238000006277 sulfonation reaction Methods 0.000 claims description 9
238000004061 bleaching Methods 0.000 claims description 7
YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 6
239000002250 absorbent Substances 0.000 claims description 6
230000002745 absorbent Effects 0.000 claims description 6
LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 4
229920005610 lignin Polymers 0.000 claims description 4
238000004458 analytical method Methods 0.000 claims description 3
229920002678 cellulose Polymers 0.000 claims description 3
239000001913 cellulose Substances 0.000 claims description 3
-1 sulphite ions Chemical class 0.000 claims description 3
230000029087 digestion Effects 0.000 claims 3
230000000717 retained effect Effects 0.000 claims 2
229920001732 Lignosulfonate Polymers 0.000 claims 1
230000001079 digestive effect Effects 0.000 claims 1
239000012530 fluid Substances 0.000 claims 1
238000005470 impregnation Methods 0.000 description 24
239000000126 substance Substances 0.000 description 23
239000002023 wood Substances 0.000 description 20
238000004090 dissolution Methods 0.000 description 17
239000000047 product Substances 0.000 description 13
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 12
238000004519 manufacturing process Methods 0.000 description 11
238000005265 energy consumption Methods 0.000 description 8
238000000227 grinding Methods 0.000 description 6
LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 5
150000002978 peroxides Chemical group 0.000 description 5
LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 5
MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
238000010411 cooking Methods 0.000 description 4
239000012978 lignocellulosic material Substances 0.000 description 4
239000002994 raw material Substances 0.000 description 4
238000011084 recovery Methods 0.000 description 4
229920006395 saturated elastomer Polymers 0.000 description 4
NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 4
KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 3
241000196324 Embryophyta Species 0.000 description 3
239000004115 Sodium Silicate Substances 0.000 description 3
229920002522 Wood fibre Polymers 0.000 description 3
239000007844 bleaching agent Substances 0.000 description 3
238000006243 chemical reaction Methods 0.000 description 3
238000010224 classification analysis Methods 0.000 description 3
238000001035 drying Methods 0.000 description 3
238000001704 evaporation Methods 0.000 description 3
238000002474 experimental method Methods 0.000 description 3
239000002657 fibrous material Substances 0.000 description 3
238000010438 heat treatment Methods 0.000 description 3
239000007791 liquid phase Substances 0.000 description 3
238000003801 milling Methods 0.000 description 3
229910052700 potassium Inorganic materials 0.000 description 3
238000002360 preparation method Methods 0.000 description 3
239000011734 sodium Substances 0.000 description 3
229910052911 sodium silicate Inorganic materials 0.000 description 3
238000003860 storage Methods 0.000 description 3
238000012360 testing method Methods 0.000 description 3
239000002025 wood fiber Substances 0.000 description 3
241000609240 Ambelania acida Species 0.000 description 2
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
229910019142 PO4 Inorganic materials 0.000 description 2
KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 2
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
239000010905 bagasse Substances 0.000 description 2
230000015572 biosynthetic process Effects 0.000 description 2
239000011575 calcium Substances 0.000 description 2
229910052791 calcium Inorganic materials 0.000 description 2
239000008139 complexing agent Substances 0.000 description 2
230000001143 conditioned effect Effects 0.000 description 2
239000005446 dissolved organic matter Substances 0.000 description 2
230000000694 effects Effects 0.000 description 2
230000008020 evaporation Effects 0.000 description 2
239000000284 extract Substances 0.000 description 2
230000002175 menstrual effect Effects 0.000 description 2
238000002156 mixing Methods 0.000 description 2
239000000203 mixture Substances 0.000 description 2
239000005416 organic matter Substances 0.000 description 2
235000021317 phosphate Nutrition 0.000 description 2
150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
239000013055 pulp slurry Substances 0.000 description 2
238000000746 purification Methods 0.000 description 2
238000000926 separation method Methods 0.000 description 2
238000004904 shortening Methods 0.000 description 2
229910052708 sodium Inorganic materials 0.000 description 2
235000010267 sodium hydrogen sulphite Nutrition 0.000 description 2
GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
241000894007 species Species 0.000 description 2
239000010902 straw Substances 0.000 description 2
239000004094 surface-active agent Substances 0.000 description 2
CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical compound OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 description 2
UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 description 1
CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
241000218657 Picea Species 0.000 description 1
ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
206010040880 Skin irritation Diseases 0.000 description 1
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
238000005299 abrasion Methods 0.000 description 1
239000002253 acid Substances 0.000 description 1
230000002378 acidificating effect Effects 0.000 description 1
150000007513 acids Chemical class 0.000 description 1
239000003513 alkali Substances 0.000 description 1
150000008044 alkali metal hydroxides Chemical class 0.000 description 1
150000004973 alkali metal peroxides Chemical class 0.000 description 1
238000013459 approach Methods 0.000 description 1
229910021538 borax Inorganic materials 0.000 description 1
239000000919 ceramic Substances 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
238000011109 contamination Methods 0.000 description 1
238000005520 cutting process Methods 0.000 description 1
238000000354 decomposition reaction Methods 0.000 description 1
230000007423 decrease Effects 0.000 description 1
230000018044 dehydration Effects 0.000 description 1
238000006297 dehydration reaction Methods 0.000 description 1
230000008021 deposition Effects 0.000 description 1
238000011161 development Methods 0.000 description 1
229910001882 dioxygen Inorganic materials 0.000 description 1
239000006185 dispersion Substances 0.000 description 1
GRWZHXKQBITJKP-UHFFFAOYSA-L dithionite(2-) Chemical compound [O-]S(=O)S([O-])=O GRWZHXKQBITJKP-UHFFFAOYSA-L 0.000 description 1
230000007613 environmental effect Effects 0.000 description 1
238000000605 extraction Methods 0.000 description 1
239000000706 filtrate Substances 0.000 description 1
229910052739 hydrogen Inorganic materials 0.000 description 1
239000012535 impurity Substances 0.000 description 1
229910052742 iron Inorganic materials 0.000 description 1
238000004898 kneading Methods 0.000 description 1
238000011068 loading method Methods 0.000 description 1
239000011777 magnesium Substances 0.000 description 1
229910052749 magnesium Inorganic materials 0.000 description 1
229910052943 magnesium sulfate Inorganic materials 0.000 description 1
235000019341 magnesium sulphate Nutrition 0.000 description 1
LPHFLPKXBKBHRW-UHFFFAOYSA-L magnesium;hydrogen sulfite Chemical compound [Mg+2].OS([O-])=O.OS([O-])=O LPHFLPKXBKBHRW-UHFFFAOYSA-L 0.000 description 1
230000014759 maintenance of location Effects 0.000 description 1
238000010297 mechanical methods and process Methods 0.000 description 1
230000005226 mechanical processes and functions Effects 0.000 description 1
230000007935 neutral effect Effects 0.000 description 1
230000001590 oxidative effect Effects 0.000 description 1
239000002245 particle Substances 0.000 description 1
JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
239000012071 phase Substances 0.000 description 1
239000011591 potassium Substances 0.000 description 1
235000019353 potassium silicate Nutrition 0.000 description 1
239000002244 precipitate Substances 0.000 description 1
238000012545 processing Methods 0.000 description 1
238000009895 reductive bleaching Methods 0.000 description 1
238000007127 saponification reaction Methods 0.000 description 1
238000007789 sealing Methods 0.000 description 1
238000010008 shearing Methods 0.000 description 1
238000007873 sieving Methods 0.000 description 1
230000036556 skin irritation Effects 0.000 description 1
231100000475 skin irritation Toxicity 0.000 description 1
PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 1
235000010265 sodium sulphite Nutrition 0.000 description 1
239000004328 sodium tetraborate Substances 0.000 description 1
235000010339 sodium tetraborate Nutrition 0.000 description 1
239000007858 starting material Substances 0.000 description 1
239000004575 stone Substances 0.000 description 1
230000006103 sulfonylation Effects 0.000 description 1
238000005694 sulfonylation reaction Methods 0.000 description 1
229910021653 sulphate ion Inorganic materials 0.000 description 1
KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
239000012808 vapor phase Substances 0.000 description 1
238000005406 washing Methods 0.000 description 1
239000002699 waste material Substances 0.000 description 1
239000000080 wetting agent Substances 0.000 description 1

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
- 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
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/28—Polysaccharides or their derivatives
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material

Landscapes

Health & Medical Sciences (AREA)
Hematology (AREA)
Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Epidemiology (AREA)
Life Sciences & Earth Sciences (AREA)
Animal Behavior & Ethology (AREA)
General Health & Medical Sciences (AREA)
Public Health (AREA)
Veterinary Medicine (AREA)
Paper (AREA)
Solid-Sorbent Or Filter-Aiding Compositions (AREA)

FI763259A 1975-11-13 1976-11-12 Foerfarande foer framstaellning av en hoegutbytesmassa laemplig foer absorptionsprodukter FI61211C (fi)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
SE7512777		1975-11-13
SE7512777A SE404044B (sv)	1975-11-13	1975-11-13	Ljusabsorberande lignirik hogutbytescellulosamassa samt forfarande for framstellning av denna

Publications (3)

Publication Number	Publication Date
FI763259A7 FI763259A7 (fr)	1977-05-14
FI61211B FI61211B (fi)	1982-02-26
FI61211C true FI61211C (fi)	1984-03-30

Family

ID=20326073

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI763259A FI61211C (fi)	1975-11-13	1976-11-12	Foerfarande foer framstaellning av en hoegutbytesmassa laemplig foer absorptionsprodukter

Country Status (10)

Country	Link
BE (1)	BE848104A (fr)
DE (1)	DE2651801C2 (fr)
DK (1)	DK145761C (fr)
FI (1)	FI61211C (fr)
FR (1)	FR2331641A1 (fr)
GB (1)	GB1546877A (fr)
NL (1)	NL173424C (fr)
NO (1)	NO150448C (fr)
NZ (1)	NZ182307A (fr)
SE (1)	SE404044B (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE466060C (sv) *	1990-02-13	1995-09-11	Moelnlycke Ab	Absorberande kemitermomekanisk massa och framställning därav
US5607546A (en) *	1990-02-13	1997-03-04	Molnlycke Ab	CTMP-process
DE4307660C1 (de) *	1993-03-11	1994-08-04	Feldmuehle Ag Stora	Herstellung chemo-mechanischer und/oder chemo-thermo-mechanischer Holzstoffe
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
US6409883B1 (en)	1999-04-16	2002-06-25	Kimberly-Clark Worldwide, Inc.	Methods of making fiber bundles and fibrous structures
PE20001393A1 (es) *	1999-04-16	2000-12-13	Kimberly Clark Co	Estructuras fibrosas que incluyen un conjunto de fibras y un agente desenlazante
DE10064131C2 (de) *	2000-12-22	2003-03-27	Sca Hygiene Prod Gmbh	Vollgebleichter Sulfit-Zellstoff, Verfahren zu seiner Herstellung und daraus hergestellte Produkte
RU2213175C1 (ru) *	2002-10-07	2003-09-27	Пермский государственный технический университет	Способ получения целлюлозы
RU2217537C1 (ru) *	2003-02-06	2003-11-27	Институт химии и химической технологии СО РАН	Способ получения целлюлозного полуфабриката
RU2234564C1 (ru) *	2003-06-11	2004-08-20	Открытое акционерное общество "Центральный научно-исследовательский институт бумаги"	Способ получения целлюлозы
RU2368715C1 (ru) *	2008-04-28	2009-09-27	Государственное образовательное учреждение высшего профессионального образования "Пермский государственный технический университет"	Способ промывки целлюлозы
SE547156C2 (en) *	2023-02-14	2025-05-06	Valmet Oy	Method and system for impregnating biomass material

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3939836A (en) *	1974-02-07	1976-02-24	Johnson & Johnson	Water dispersible nonwoven fabric

1975
- 1975-11-13 SE SE7512777A patent/SE404044B/xx not_active IP Right Cessation
1976
- 1976-10-12 NZ NZ182307A patent/NZ182307A/xx unknown
- 1976-11-08 BE BE172163A patent/BE848104A/fr not_active IP Right Cessation
- 1976-11-08 GB GB46379/76A patent/GB1546877A/en not_active Expired
- 1976-11-10 NL NLAANVRAGE7612501,A patent/NL173424C/xx not_active IP Right Cessation
- 1976-11-12 DE DE2651801A patent/DE2651801C2/de not_active Expired
- 1976-11-12 DK DK510676A patent/DK145761C/da not_active IP Right Cessation
- 1976-11-12 FI FI763259A patent/FI61211C/fi not_active IP Right Cessation
- 1976-11-12 NO NO763866A patent/NO150448C/no unknown
- 1976-11-15 FR FR7634307A patent/FR2331641A1/fr active Granted

Also Published As

Publication number	Publication date
DK145761C (da)	1987-02-09
DK145761B (da)	1983-02-21
DE2651801A1 (de)	1977-05-18
FR2331641B1 (fr)	1982-04-23
FR2331641A1 (fr)	1977-06-10
NO150448C (no)	1987-02-19
NL173424C (nl)	1984-01-16
NO150448B (no)	1984-07-09
NZ182307A (en)	1979-03-16
NL173424B (nl)	1983-08-16
GB1546877A (en)	1979-05-31
FI763259A7 (fr)	1977-05-14
NL7612501A (nl)	1977-05-17
NO763866L (fr)	1977-05-16
SE404044B (sv)	1978-09-18
FI61211B (fi)	1982-02-26
DE2651801C2 (de)	1981-11-19
DK510676A (da)	1977-05-14
SE7512777L (sv)	1977-05-14
BE848104A (fr)	1977-03-01

Legal Events

Date	Code	Title	Description
1994-06-08	MM	Patent lapsed
2004-08-31	MM	Patent lapsed	Owner name: MO OCH DOMSJOE AKTIEBOLAG

Publication	Publication Date	Title
FI59435C (fi)	1981-08-10	Mekanisk fluffmassa och foerfarande foer framstaellning av denna
FI63607B (fi)	1983-03-31	Foerfarande foer framstaellning av cellulosamassor i utbytesomraodet 65-95 %
FI66925B (fi)	1984-08-31	Foerfarande foer behandling av vedflis
FI61211C (fi)	1984-03-30	Foerfarande foer framstaellning av en hoegutbytesmassa laemplig foer absorptionsprodukter
FI99147C (fi)	1997-10-10	CTMP-prosessi
FI67893B (fi)	1985-02-28	Foerfarande foer foeraedling av cellulosamassor
FI61055C (fi)	1982-05-10	Foerfarande foer peroxidblekning av hoegutbytesmassa
FI63447C (fi)	1983-06-10	Foerfarande foer framstaellning av cellulosamassa med hoegt utyte och till laoga kostnad
US4116758A (en)	1978-09-26	Method of producing high yield chemimechanical pulps
FI69881C (fi)	1986-05-26	Foerfarande foer framstaellning av slipmassa
WO2004050983A1 (fr)	2004-06-17	Procede et systeme de traitement de copeaux de bois
US4190490A (en)	1980-02-26	Impregnation and digestion of wood chips
CA1273454A (fr)	1990-09-04	Methode de fabrication des pates de cellulose, et pates ainsi produites
FI96522B (fi)	1996-03-29	Menetelmä valkaistujen kemitermomekaanisten massojen valmistamiseksi
FI71779B (fi)	1986-10-31	Foerfarande foer framstaellning av mekanisk raffinoermassa
FI73016C (fi)	1987-08-10	Saett vid tillverkning av mekanisk cellulosamassa.
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