NO174723B - Fremgangsmaate for fremstilling av tremasse - Google Patents

Fremgangsmaate for fremstilling av tremasse Download PDF

Info

Publication number: NO174723B
Authority: NO; Norway
Prior art keywords: suspension; polymer; added; pulp; cationic
Prior art date: 1988-03-28

Application number

NO891302A

Other languages

English (en)

Norwegian (no)

Other versions

NO891302L (no

NO891302D0 (no

Inventor

Robert Reed

Original Assignee

Allied Colloids Ltd

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.)

1988-03-28

Filing date

1989-03-28

Publication date

1994-03-14

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10634297&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NO174723(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1989-03-28 Application filed by Allied Colloids Ltd filed Critical Allied Colloids Ltd

1989-03-28 Publication of NO891302D0 publication Critical patent/NO891302D0/no

1989-09-29 Publication of NO891302L publication Critical patent/NO891302L/no

1994-03-14 Publication of NO174723B publication Critical patent/NO174723B/no

Links

238000000034 method Methods 0.000 title claims abstract description 30
238000004519 manufacturing process Methods 0.000 title claims description 25
229920001131 Pulp (paper) Polymers 0.000 title claims description 4
239000000725 suspension Substances 0.000 claims abstract description 28
229910000278 bentonite Inorganic materials 0.000 claims abstract description 25
239000000440 bentonite Substances 0.000 claims abstract description 25
SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 25
238000010008 shearing Methods 0.000 claims abstract description 18
229910010272 inorganic material Inorganic materials 0.000 claims abstract description 17
239000011147 inorganic material Substances 0.000 claims abstract description 17
229920006317 cationic polymer Polymers 0.000 claims abstract description 14
229920000642 polymer Polymers 0.000 claims description 49
125000002091 cationic group Chemical group 0.000 claims description 14
239000000178 monomer Substances 0.000 claims description 14
239000000463 material Substances 0.000 claims description 13
WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 9
238000002156 mixing Methods 0.000 claims description 9
238000004537 pulping Methods 0.000 claims description 9
229920002472 Starch Polymers 0.000 claims description 7
239000008107 starch Substances 0.000 claims description 7
235000019698 starch Nutrition 0.000 claims description 7
229920000768 polyamine Polymers 0.000 claims description 6
RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 6
235000012239 silicon dioxide Nutrition 0.000 claims description 5
229920002873 Polyethylenimine Polymers 0.000 claims description 4
NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
238000004140 cleaning Methods 0.000 claims description 4
NJSSICCENMLTKO-HRCBOCMUSA-N [(1r,2s,4r,5r)-3-hydroxy-4-(4-methylphenyl)sulfonyloxy-6,8-dioxabicyclo[3.2.1]octan-2-yl] 4-methylbenzenesulfonate Chemical compound C1=CC(C)=CC=C1S(=O)(=O)O[C@H]1C(O)[C@@H](OS(=O)(=O)C=2C=CC(C)=CC=2)[C@@H]2OC[C@H]1O2 NJSSICCENMLTKO-HRCBOCMUSA-N 0.000 claims description 3
239000007900 aqueous suspension Substances 0.000 claims description 3
238000005086 pumping Methods 0.000 claims description 3
150000003839 salts Chemical group 0.000 claims description 3
239000002253 acid Substances 0.000 claims description 2
125000004985 dialkyl amino alkyl group Chemical group 0.000 claims description 2
229920001059 synthetic polymer Polymers 0.000 claims description 2
229920003169 water-soluble polymer Polymers 0.000 claims description 2
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
235000012216 bentonite Nutrition 0.000 description 23
239000003795 chemical substances by application Substances 0.000 description 14
241000196324 Embryophyta Species 0.000 description 11
230000014759 maintenance of location Effects 0.000 description 10
239000000123 paper Substances 0.000 description 10
238000001035 drying Methods 0.000 description 8
239000000835 fiber Substances 0.000 description 7
229920002678 cellulose Polymers 0.000 description 6
239000001913 cellulose Substances 0.000 description 6
239000007858 starting material Substances 0.000 description 5
239000002023 wood Substances 0.000 description 5
HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 4
239000000654 additive Substances 0.000 description 4
239000011111 cardboard Substances 0.000 description 4
239000000945 filler Substances 0.000 description 4
239000011087 paperboard Substances 0.000 description 4
239000002245 particle Substances 0.000 description 4
239000000126 substance Substances 0.000 description 4
150000003926 acrylamides Chemical class 0.000 description 3
229920001577 copolymer Polymers 0.000 description 3
239000000047 product Substances 0.000 description 3
238000005406 washing Methods 0.000 description 3
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
241000202567 Fatsia japonica Species 0.000 description 2
FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
150000001252 acrylic acid derivatives Chemical class 0.000 description 2
230000009286 beneficial effect Effects 0.000 description 2
238000003490 calendering Methods 0.000 description 2
125000004432 carbon atom Chemical group C* 0.000 description 2
150000001875 compounds Chemical class 0.000 description 2
238000005520 cutting process Methods 0.000 description 2
238000001914 filtration Methods 0.000 description 2
239000000203 mixture Substances 0.000 description 2
229910052901 montmorillonite Inorganic materials 0.000 description 2
238000012216 screening Methods 0.000 description 2
238000011282 treatment Methods 0.000 description 2
DPBJAVGHACCNRL-UHFFFAOYSA-N 2-(dimethylamino)ethyl prop-2-enoate Chemical compound CN(C)CCOC(=O)C=C DPBJAVGHACCNRL-UHFFFAOYSA-N 0.000 description 1
BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
230000000996 additive effect Effects 0.000 description 1
239000003513 alkali Substances 0.000 description 1
229910052783 alkali metal Inorganic materials 0.000 description 1
150000001340 alkali metals Chemical class 0.000 description 1
125000000217 alkyl group Chemical group 0.000 description 1
125000004103 aminoalkyl group Chemical group 0.000 description 1
125000000129 anionic group Chemical group 0.000 description 1
238000000137 annealing Methods 0.000 description 1
229910000281 calcium bentonite Inorganic materials 0.000 description 1
238000005119 centrifugation Methods 0.000 description 1
239000007795 chemical reaction product Substances 0.000 description 1
NEHMKBQYUWJMIP-NJFSPNSNSA-N chloro(114C)methane Chemical compound [14CH3]Cl NEHMKBQYUWJMIP-NJFSPNSNSA-N 0.000 description 1
KVVJLOJJMLYMGH-UHFFFAOYSA-N chloromethane 2-(dimethylaminomethylidene)butanoic acid Chemical compound CCl.CN(C)C=C(C(=O)O)CC KVVJLOJJMLYMGH-UHFFFAOYSA-N 0.000 description 1
230000000694 effects Effects 0.000 description 1
238000000227 grinding Methods 0.000 description 1
229920001519 homopolymer Polymers 0.000 description 1
239000007788 liquid Substances 0.000 description 1
229920005615 natural polymer Polymers 0.000 description 1
229910052757 nitrogen Inorganic materials 0.000 description 1
239000010893 paper waste Substances 0.000 description 1
239000011236 particulate material Substances 0.000 description 1
239000000049 pigment Substances 0.000 description 1
150000003242 quaternary ammonium salts Chemical class 0.000 description 1
239000011780 sodium chloride Substances 0.000 description 1
239000001488 sodium phosphate Substances 0.000 description 1
229910000162 sodium phosphate Inorganic materials 0.000 description 1
LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
238000004381 surface treatment Methods 0.000 description 1
230000008961 swelling Effects 0.000 description 1
230000000930 thermomechanical effect Effects 0.000 description 1
RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
238000005303 weighing Methods 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
- D21C3/22—Other features of pulping processes
- 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
- D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/76—Processes or apparatus for adding material to the pulp or to the paper characterised by choice of auxiliary compounds which are added separately from at least one other compound, e.g. to improve the incorporation of the latter or to obtain an enhanced combined effect
- D21H23/765—Addition of all compounds to the pulp
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
- D21H17/29—Starch cationic
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/41—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups
- D21H17/44—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups cationic
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Paper (AREA)
Materials For Medical Uses (AREA)
Polysaccharides And Polysaccharide Derivatives (AREA)

NO891302A 1988-03-28 1989-03-28 Fremgangsmaate for fremstilling av tremasse NO174723B (no)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB888807445A GB8807445D0 (en)	1988-03-28	1988-03-28	Pulp dewatering process

Publications (3)

Publication Number	Publication Date
NO891302D0 NO891302D0 (no)	1989-03-28
NO891302L NO891302L (no)	1989-09-29
NO174723B true NO174723B (no)	1994-03-14

Family

ID=10634297

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO891302A NO174723B (no)	1988-03-28	1989-03-28	Fremgangsmaate for fremstilling av tremasse

Country Status (13)

Country	Link
US (1)	US4969976A (de)
EP (1)	EP0335576B1 (de)
JP (1)	JPH026684A (de)
KR (1)	KR890014833A (de)
AT (1)	ATE89350T1 (de)
AU (1)	AU613464B2 (de)
CA (1)	CA1322436C (de)
DE (1)	DE68906452T2 (de)
ES (1)	ES2040461T3 (de)
FI (1)	FI92724B (de)
GB (1)	GB8807445D0 (de)
NO (1)	NO174723B (de)
ZA (1)	ZA892281B (de)

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US5104552A (en) *	1990-11-08	1992-04-14	American Cyanamid Company	Reduction of clay in sludges to be dewatered
US5098520A (en) *	1991-01-25	1992-03-24	Nalco Chemcial Company	Papermaking process with improved retention and drainage
US5415740A (en) *	1991-04-25	1995-05-16	Betz Paperchem, Inc.	Method for improving retention and drainage characteristics in alkaline papermaking
US5501768A (en) *	1992-04-17	1996-03-26	Kimberly-Clark Corporation	Method of treating papermaking fibers for making tissue
US5348620A (en) *	1992-04-17	1994-09-20	Kimberly-Clark Corporation	Method of treating papermaking fibers for making tissue
US5582681A (en) *	1994-06-29	1996-12-10	Kimberly-Clark Corporation	Production of soft paper products from old newspaper
US6074527A (en) *	1994-06-29	2000-06-13	Kimberly-Clark Worldwide, Inc.	Production of soft paper products from coarse cellulosic fibers
US5620565A (en) *	1994-06-29	1997-04-15	Kimberly-Clark Corporation	Production of soft paper products from high and low coarseness fibers
US6273998B1 (en)	1994-08-16	2001-08-14	Betzdearborn Inc.	Production of paper and paperboard
US5626718A (en) *	1994-09-16	1997-05-06	Betz Laboratories, Inc.	Use of polymers in the recycled fiber washing/deinking process
US5571494A (en) *	1995-01-20	1996-11-05	J. M. Huber Corporation	Temperature-activated polysilicic acids
US6193844B1 (en)	1995-06-07	2001-02-27	Mclaughlin John R.	Method for making paper using microparticles
US5968316A (en) *	1995-06-07	1999-10-19	Mclauglin; John R.	Method of making paper using microparticles
GB9604927D0 (en) *	1996-03-08	1996-05-08	Allied Colloids Ltd	Activation of swelling clays and processes of using the activated clays
GB9604950D0 (en) *	1996-03-08	1996-05-08	Allied Colloids Ltd	Clay compositions and their use in paper making
US6296736B1 (en)	1997-10-30	2001-10-02	Kimberly-Clark Worldwide, Inc.	Process for modifying pulp from recycled newspapers
GB9624832D0 (en) *	1996-11-28	1997-01-15	Allied Colloids Ltd	Production of paper and paper board
US5900116A (en)	1997-05-19	1999-05-04	Sortwell & Co.	Method of making paper
US6423183B1 (en) *	1997-12-24	2002-07-23	Kimberly-Clark Worldwide, Inc.	Paper products and a method for applying a dye to cellulosic fibers
TW440641B (en) *	1997-12-24	2001-06-16	Kimberly Clark Co	Paper products and methods for applying chemical additives to cellulosic fibers
US6387210B1 (en)	1998-09-30	2002-05-14	Kimberly-Clark Worldwide, Inc.	Method of making sanitary paper product from coarse fibers
JP3387859B2 (ja)	1998-12-15	2003-03-17	日本電気株式会社	３値スイッチ回路
US6379498B1 (en) *	2000-02-28	2002-04-30	Kimberly-Clark Worldwide, Inc.	Method for adding an adsorbable chemical additive to pulp during the pulp processing and products made by said method
US6749721B2 (en)	2000-12-22	2004-06-15	Kimberly-Clark Worldwide, Inc.	Process for incorporating poorly substantive paper modifying agents into a paper sheet via wet end addition
US6582560B2 (en)	2001-03-07	2003-06-24	Kimberly-Clark Worldwide, Inc.	Method for using water insoluble chemical additives with pulp and products made by said method
US7749356B2 (en)	2001-03-07	2010-07-06	Kimberly-Clark Worldwide, Inc.	Method for using water insoluble chemical additives with pulp and products made by said method
FI117715B (fi) *	2001-10-25	2007-01-31	M Real Oyj	Menetelmä täyteaineen valmistus- ja käyttötalouden parantamiseksi
US6916402B2 (en)	2002-12-23	2005-07-12	Kimberly-Clark Worldwide, Inc.	Process for bonding chemical additives on to substrates containing cellulosic materials and products thereof
JP2004328545A (ja)	2003-04-25	2004-11-18	Sharp Corp	デコード回路ならびにそれを用いるディスク記録／再生装置の受光アンプ回路および光学ピックアップ
US7670459B2 (en)	2004-12-29	2010-03-02	Kimberly-Clark Worldwide, Inc.	Soft and durable tissue products containing a softening agent
US20070131372A1 (en) *	2005-12-09	2007-06-14	Plouff Michael T	Phyllosilicate Slurry For Papermaking
US9150442B2 (en)	2010-07-26	2015-10-06	Sortwell & Co.	Method for dispersing and aggregating components of mineral slurries and high-molecular weight multivalent polymers for clay aggregation
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BR112013011869B1 (pt)	2010-11-16	2020-12-22	Basf Se	processo para fabricação de polpa
US8486427B2 (en) *	2011-02-11	2013-07-16	Kimberly-Clark Worldwide, Inc.	Wipe for use with a germicidal solution
WO2013081955A1 (en) *	2011-12-01	2013-06-06	Buckman Laboratories International, Inc.	Method and system for producing market pulp and products thereof
US8721896B2 (en)	2012-01-25	2014-05-13	Sortwell & Co.	Method for dispersing and aggregating components of mineral slurries and low molecular weight multivalent polymers for mineral aggregation
JP6234394B2 (ja) *	2015-03-04	2017-11-22	大王製紙株式会社	吸収性物品の製造方法
US10358773B2 (en) *	2015-03-12	2019-07-23	Dic Corporation	Resin particle dispersion, sheet product, and friction plate
US11421385B2 (en)	2018-08-23	2022-08-23	Eastman Chemical Company	Soft wipe comprising cellulose acetate
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US11414818B2 (en)	2018-08-23	2022-08-16	Eastman Chemical Company	Dewatering in paper making process
US11408128B2 (en)	2018-08-23	2022-08-09	Eastman Chemical Company	Sheet with high sizing acceptance
US11639579B2 (en) *	2018-08-23	2023-05-02	Eastman Chemical Company	Recycle pulp comprising cellulose acetate
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US11441267B2 (en)	2018-08-23	2022-09-13	Eastman Chemical Company	Refining to a desirable freeness
US11230811B2 (en)	2018-08-23	2022-01-25	Eastman Chemical Company	Recycle bale comprising cellulose ester
US11390996B2 (en)	2018-08-23	2022-07-19	Eastman Chemical Company	Elongated tubular articles from wet-laid webs
US11530516B2 (en)	2018-08-23	2022-12-20	Eastman Chemical Company	Composition of matter in a pre-refiner blend zone
US11492756B2 (en)	2018-08-23	2022-11-08	Eastman Chemical Company	Paper press process with high hydrolic pressure
US11286619B2 (en)	2018-08-23	2022-03-29	Eastman Chemical Company	Bale of virgin cellulose and cellulose ester
SE1950165A1 (en) *	2019-02-12	2020-08-13	Stora Enso Oyj	Method of producing a molded fiber product and molded fiber product
WO2025099492A1 (en)	2023-11-10	2025-05-15	Snf Group	Method for manufacturing paper pulp

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA1069742A (en) *	1978-01-03	1980-01-15	Edwin H. Flaherty	Pulp sheet formation
DE3065576D1 (en) *	1979-03-28	1983-12-22	Allied Colloids Ltd	Production of paper and paper board
GB8602121D0 (en) *	1986-01-29	1986-03-05	Allied Colloids Ltd	Paper & paper board

1988
- 1988-03-28 GB GB888807445A patent/GB8807445D0/en active Pending
1989
- 1989-03-22 DE DE8989302843T patent/DE68906452T2/de not_active Revoked
- 1989-03-22 AT AT89302843T patent/ATE89350T1/de not_active IP Right Cessation
- 1989-03-22 EP EP89302843A patent/EP0335576B1/de not_active Revoked
- 1989-03-22 ES ES198989302843T patent/ES2040461T3/es not_active Expired - Lifetime
- 1989-03-27 JP JP1074814A patent/JPH026684A/ja active Pending
- 1989-03-28 AU AU31746/89A patent/AU613464B2/en not_active Ceased
- 1989-03-28 NO NO891302A patent/NO174723B/no unknown
- 1989-03-28 CA CA000594867A patent/CA1322436C/en not_active Expired - Fee Related
- 1989-03-28 US US07/329,665 patent/US4969976A/en not_active Expired - Fee Related
- 1989-03-28 FI FI891466A patent/FI92724B/fi not_active IP Right Cessation
- 1989-03-28 ZA ZA892281A patent/ZA892281B/xx unknown
- 1989-03-28 KR KR1019890003910A patent/KR890014833A/ko not_active Withdrawn

Also Published As

Publication number	Publication date
AU3174689A (en)	1989-09-28
DE68906452T2 (de)	1993-09-23
FI891466L (fi)	1989-09-29
GB8807445D0 (en)	1988-05-05
CA1322436C (en)	1993-09-28
KR890014833A (ko)	1989-10-25
DE68906452D1 (de)	1993-06-17
EP0335576A3 (en)	1990-12-19
NO891302L (no)	1989-09-29
JPH026684A (ja)	1990-01-10
ATE89350T1 (de)	1993-05-15
FI92724B (fi)	1994-09-15
US4969976A (en)	1990-11-13
ZA892281B (en)	1990-05-30
ES2040461T3 (es)	1993-10-16
EP0335576A2 (de)	1989-10-04
NO891302D0 (no)	1989-03-28
EP0335576B1 (de)	1993-05-12
FI891466A0 (fi)	1989-03-28
AU613464B2 (en)	1991-08-01

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