FI894616A0 - Kolloidal sammansättning och dess användning vid pappers- och kartongframställning - Google Patents
Kolloidal sammansättning och dess användning vid pappers- och kartongframställningInfo
- Publication number
- FI894616A0 FI894616A0 FI894616A FI894616A FI894616A0 FI 894616 A0 FI894616 A0 FI 894616A0 FI 894616 A FI894616 A FI 894616A FI 894616 A FI894616 A FI 894616A FI 894616 A0 FI894616 A0 FI 894616A0
- Authority
- FI
- Finland
- Prior art keywords
- composition
- polymer
- siliceous material
- paper
- molecular weight
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000000463 material Substances 0.000 abstract 3
- 239000004927 clay Substances 0.000 abstract 2
- 229920000620 organic polymer Polymers 0.000 abstract 2
- 229920000642 polymer Polymers 0.000 abstract 2
- 230000008961 swelling Effects 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 229920002125 Sokalan® Polymers 0.000 abstract 1
- 239000008346 aqueous phase Substances 0.000 abstract 1
- 239000013051 drainage agent Substances 0.000 abstract 1
- 239000008394 flocculating agent Substances 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 239000000123 paper Substances 0.000 abstract 1
- 239000011087 paperboard Substances 0.000 abstract 1
- 239000004584 polyacrylic acid Substances 0.000 abstract 1
- 229920000768 polyamine Polymers 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
Classifications
-
- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/06—Paper forming aids
- D21H21/10—Retention agents or drainage improvers
-
- 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
- D21H17/42—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups anionic
-
- 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
- D21H17/42—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing ionic groups anionic
- D21H17/43—Carboxyl groups or derivatives thereof
-
- 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
- D21H17/45—Nitrogen-containing groups
- D21H17/455—Nitrogen-containing groups comprising tertiary amine or being at least partially quaternised
-
- 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
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
- D21H23/06—Controlling the addition
- D21H23/14—Controlling the addition by selecting point of addition or time of contact between components
- D21H23/18—Addition at a location where shear forces are avoided before sheet-forming, e.g. after pulp beating or refining
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Extraction Or Liquid Replacement (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Packages (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8828899 | 1988-12-10 | ||
GB888828899A GB8828899D0 (en) | 1988-12-10 | 1988-12-10 | Paper & paperboard |
Publications (4)
Publication Number | Publication Date |
---|---|
FI894616A0 true FI894616A0 (sv) | 1989-09-29 |
FI894616A FI894616A (sv) | 1990-06-11 |
FI98942B FI98942B (sv) | 1997-05-30 |
FI98942C FI98942C (sv) | 1997-09-10 |
Family
ID=10648309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI894616A FI98942C (sv) | 1988-12-10 | 1989-09-29 | Kolloidal sammansättning och dess användning vid pappers- och kartongframställning |
Country Status (14)
Country | Link |
---|---|
US (2) | US5015334A (sv) |
EP (1) | EP0373306B1 (sv) |
JP (1) | JPH02160999A (sv) |
AT (1) | ATE114755T1 (sv) |
AU (1) | AU620158B2 (sv) |
BR (1) | BR8904956A (sv) |
DE (1) | DE68919654T2 (sv) |
DK (1) | DK490389A (sv) |
ES (1) | ES2066818T3 (sv) |
FI (1) | FI98942C (sv) |
GB (1) | GB8828899D0 (sv) |
NO (1) | NO177575C (sv) |
NZ (1) | NZ230799A (sv) |
ZA (1) | ZA897422B (sv) |
Families Citing this family (56)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5032227A (en) * | 1990-07-03 | 1991-07-16 | Vinings Industries Inc. | Production of paper or paperboard |
GB9024016D0 (en) * | 1990-11-05 | 1990-12-19 | Allied Colloids Ltd | Clay compositions,their manufacture and their use in the production of paper |
FR2679546B1 (fr) * | 1991-07-26 | 1994-01-28 | Zschimmer Schwarz France | Procede de traitement des eaux. |
US5736008A (en) * | 1993-04-08 | 1998-04-07 | Congoleum Corporation | Fibrous-reinforced sheet |
WO1994026972A1 (en) * | 1993-05-10 | 1994-11-24 | W.R. Grace & Co.-Conn. | Paper making processes |
US5415733A (en) * | 1993-05-27 | 1995-05-16 | High Point Chemical Corp. | Method of removing hydrophilic ink |
US5407480A (en) * | 1993-09-30 | 1995-04-18 | Vinings Industries, Inc. | Stabilized, high solids, low viscosity smectite slurries, and method of preparation |
US6273998B1 (en) | 1994-08-16 | 2001-08-14 | Betzdearborn Inc. | Production of paper and paperboard |
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 |
FR2740482B1 (fr) * | 1995-10-30 | 1997-11-21 | Snf Sa | Procede pour ameliorer la retention dans un procede de fabrication du papier, carton et analogue |
US5989696A (en) * | 1996-02-13 | 1999-11-23 | Fort James Corporation | Antistatic coated substrates and method of making same |
GB9604927D0 (en) * | 1996-03-08 | 1996-05-08 | Allied Colloids Ltd | Activation of swelling clays and processes of using the activated clays |
US5741889A (en) * | 1996-04-29 | 1998-04-21 | International Paper Company | Modified rosin emulsion |
US5900116A (en) | 1997-05-19 | 1999-05-04 | Sortwell & Co. | Method of making paper |
US5961783A (en) * | 1997-06-06 | 1999-10-05 | Vinings Industries, Inc. | Process for enhancing the strength and sizing properties of cellulosic fiber using a self-emulsifiable isocyanate and a coupling agent |
GB9719472D0 (en) * | 1997-09-12 | 1997-11-12 | Allied Colloids Ltd | Process of making paper |
NZ331438A (en) * | 1997-09-16 | 2000-01-28 | Ciba Sc Holding Ag | A method of increasing the whiteness of paper by using a formulation containing a swellale layered silicate and an optical brightener 4,4-bis-(triazinylamino)-stilbene-2,2-disulphonic acid |
DE19750107C1 (de) | 1997-11-12 | 1999-04-15 | Bosch Gmbh Robert | Bornitrid-Dichtungskörper und Verfahren zur Herstellung und Verwendung desselben |
US7234857B2 (en) * | 1998-02-26 | 2007-06-26 | Wetend Technologies Oy | Method and apparatus for feeding a chemical into a liquid flow |
US6238519B1 (en) | 1998-11-18 | 2001-05-29 | Kimberly Clark Worldwide, Inc. | Soft absorbent paper product containing deactivated ketene dimer agents |
CA2287699A1 (en) * | 1998-11-18 | 2000-05-18 | Nancy S. Clungeon | Soft highly absorbent paper product containing ketene dimer sizing agents |
US6514384B1 (en) | 1999-03-19 | 2003-02-04 | Weyerhaeuser Company | Method for increasing filler retention of cellulosic fiber sheets |
US6103065A (en) * | 1999-03-30 | 2000-08-15 | Basf Corporation | Method for reducing the polymer and bentonite requirement in papermaking |
US6376011B1 (en) | 1999-04-16 | 2002-04-23 | Kimberly-Clark Worldwide, Inc. | Process for preparing superabsorbent-containing composites |
US6387495B1 (en) | 1999-04-16 | 2002-05-14 | Kimberly-Clark Worldwide, Inc. | Superabsorbent-containing composites |
TW550325B (en) * | 1999-11-08 | 2003-09-01 | Ciba Spec Chem Water Treat Ltd | Manufacture of paper and paperboard |
TW483970B (en) * | 1999-11-08 | 2002-04-21 | Ciba Spec Chem Water Treat Ltd | A process for making paper and paperboard |
US6770170B2 (en) | 2000-05-16 | 2004-08-03 | Buckman Laboratories International, Inc. | Papermaking pulp including retention system |
ATE373141T1 (de) | 2000-05-17 | 2007-09-15 | Buckman Labor Inc | Papierfaserstoff und flockungsmittel, die ein saures wässriges aluminumoxidsol enthalten |
JP4213365B2 (ja) * | 2000-10-10 | 2009-01-21 | 吉野石膏株式会社 | 石膏ボード、石膏ボードの製造方法、建築物の内装構造、及び建築物の内装構造の改修方法 |
GB0115411D0 (en) | 2001-06-25 | 2001-08-15 | Ciba Spec Chem Water Treat Ltd | Manufacture of paper and paper board |
US6740271B2 (en) * | 2001-07-04 | 2004-05-25 | Man-Gu Sim | Board and board composition and manufacturing method thereof using crushed vegetational material and clay |
DE10236252B4 (de) * | 2002-08-07 | 2005-06-30 | Basf Ag | Verfahren zur Herstellung von Papier, Pappe und Karton |
DE20220979U1 (de) * | 2002-08-07 | 2004-10-14 | Basf Ag | Papierprodukt |
US20040107871A1 (en) * | 2002-08-09 | 2004-06-10 | Defeo Maureen A. | Aluminum trihydrate containing slurries |
US7303654B2 (en) * | 2002-11-19 | 2007-12-04 | Akzo Nobel N.V. | Cellulosic product and process for its production |
MXPA04003942A (es) * | 2003-05-05 | 2007-06-29 | German Vergara Lopez | Un sistema de retencion y drenaje recomendado para la fabricacion de papel, cartulina, carton y otros productos similares. |
US7244339B2 (en) * | 2003-05-05 | 2007-07-17 | Vergara Lopez German | Retention and drainage system for the manufacturing of paper |
AR044128A1 (es) * | 2003-05-09 | 2005-08-24 | Akzo Nobel Nv | Proceso para la produccion de papel |
MXPA06008268A (es) * | 2004-01-23 | 2006-08-31 | Buckman Labor Inc | Proceso para fabricar papel. |
FR2869626A3 (fr) * | 2004-04-29 | 2005-11-04 | Snf Sas Soc Par Actions Simpli | Procede de fabrication de papier et carton, nouveaux agents de retention et d'egouttage correspondants, et papiers et cartons ainsi obtenus |
US20070166512A1 (en) * | 2004-08-25 | 2007-07-19 | Jesch Norman L | Absorbent Release Sheet |
DE102004060587A1 (de) * | 2004-12-16 | 2006-07-06 | Süd-Chemie AG | Bentonite zur Störstoffbindung in der Papierherstellung |
WO2007002896A2 (en) * | 2005-06-29 | 2007-01-04 | Graphic Packaging International, Inc. | Packaging material for food items containing permeating oils |
US20070292569A1 (en) * | 2005-06-29 | 2007-12-20 | Bohme Reinhard D | Packaging material for food items containing permeating oils |
US7494565B2 (en) * | 2005-09-21 | 2009-02-24 | Nalco Company | Use of starch with synthetic metal silicates for improving a papermaking process |
US7459059B2 (en) * | 2005-09-21 | 2008-12-02 | Nalco Company | Use of synthetic metal silicates for increasing retention and drainage during a papermaking process |
US8753012B2 (en) * | 2006-06-29 | 2014-06-17 | Graphic Flexible Packaging, Llc | High strength packages and packaging materials |
US8826959B2 (en) * | 2006-06-29 | 2014-09-09 | Graphic Packaging International, Inc. | Heat sealing systems and methods, and related articles and materials |
JP4762184B2 (ja) * | 2007-03-22 | 2011-08-31 | 大王製紙株式会社 | 化粧板原紙 |
US20090263048A1 (en) * | 2008-04-16 | 2009-10-22 | Iannelli Ii Michael Louis | Bag Structures And Methods Of Assembling The Same |
WO2012018514A2 (en) | 2010-07-26 | 2012-02-09 | Sortwell & Co. | Method for dispersing and aggregating components of mineral slurries and high-molecular weight multivalent polymers for clay aggregation |
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 |
WO2013127731A1 (en) * | 2012-03-01 | 2013-09-06 | Basf Se | Process for the manufacture of paper and paperboard |
US10858291B2 (en) | 2014-04-07 | 2020-12-08 | Lamberti Spa | Process for making tiles |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2213643A (en) * | 1938-10-11 | 1940-09-03 | Vanderbilt Co R T | Coated fibrous sheet materials |
US2795545A (en) * | 1953-04-14 | 1957-06-11 | Monsanto Chemicals | Organic materials |
US3052595A (en) | 1955-05-11 | 1962-09-04 | Dow Chemical Co | Method for increasing filler retention in paper |
DE1073854B (de) * | 1956-04-10 | 1960-01-21 | Rohm &. Haas Company, Philadelphia, Pa. (V. St. A.) | Verfahren zur Herstellung gefüllter Papiere u. dgl |
US3909421A (en) * | 1971-08-19 | 1975-09-30 | Preston G Gaddis | Method of making high viscosity aqueous mediums |
US3835054A (en) * | 1972-07-10 | 1974-09-10 | Nalco Chemical Co | Method for preparation of thermal insulation board |
US4181567A (en) * | 1975-07-17 | 1980-01-01 | Martin Clark Riddell | Paper manufacture employing filler and acrylamide polymer conglomerates |
SE7708115L (sv) * | 1976-07-14 | 1978-01-15 | English Clays Lovering Pochin | Forfarande for framstellning av papper eller papp |
SU796289A1 (ru) * | 1979-02-16 | 1981-01-15 | Институт Физической Химии Ан Укра-Инской Ccp | Бумажна масса |
DE3065576D1 (en) | 1979-03-28 | 1983-12-22 | Allied Colloids Ltd | Production of paper and paper board |
FI67736B (fi) | 1981-04-10 | 1985-01-31 | Kasvioeljy Vaextolje Oy Ab | Aemneskomposition foer limning av papper |
SE8107078L (sv) * | 1981-11-27 | 1983-05-28 | Eka Ab | Forfarande for papperstillverkning |
SU1052603A1 (ru) * | 1982-07-26 | 1983-11-07 | Центральный научно-исследовательский институт бумаги | Способ подготовки бумажной массы |
IE55674B1 (en) * | 1982-09-24 | 1990-12-19 | Blue Circle Ind Plc | Compositions comprising mineral particles in suspension and method of treating aqueous systems therewith |
US4588664A (en) * | 1983-08-24 | 1986-05-13 | Polaroid Corporation | Photopolymerizable compositions used in holograms |
US4569920A (en) * | 1983-09-06 | 1986-02-11 | Blasch Precision Ceramics, Inc. | Preparation of inorganic particle slurries |
US4613542A (en) * | 1985-04-05 | 1986-09-23 | American Colloid Company | Method of impregnating a water-penetrable article with a swell-inhibited water swellable clay slurry |
DE3541163A1 (de) * | 1985-11-21 | 1987-05-27 | Basf Ag | Verfahren zur herstellung von papier und karton |
US4913775A (en) * | 1986-01-29 | 1990-04-03 | Allied Colloids Ltd. | Production of paper and paper board |
GB8602121D0 (en) * | 1986-01-29 | 1986-03-05 | Allied Colloids Ltd | Paper & paper board |
US4750974A (en) * | 1986-02-24 | 1988-06-14 | Nalco Chemical Company | Papermaking aid |
US4629572A (en) * | 1986-02-27 | 1986-12-16 | Atlantic Richfield Company | Paint detackification method |
GB8628807D0 (en) * | 1986-12-02 | 1987-01-07 | Ecc Int Ltd | Clay composition |
JP2595257B2 (ja) * | 1987-09-01 | 1997-04-02 | ハイモ株式会社 | 中性抄紙における填料歩留向上方法 |
-
1988
- 1988-12-10 GB GB888828899A patent/GB8828899D0/en active Pending
-
1989
- 1989-09-19 ES ES89117263T patent/ES2066818T3/es not_active Expired - Lifetime
- 1989-09-19 EP EP89117263A patent/EP0373306B1/en not_active Revoked
- 1989-09-19 AT AT89117263T patent/ATE114755T1/de not_active IP Right Cessation
- 1989-09-19 DE DE68919654T patent/DE68919654T2/de not_active Revoked
- 1989-09-22 US US07/410,820 patent/US5015334A/en not_active Expired - Fee Related
- 1989-09-27 NZ NZ230799A patent/NZ230799A/en unknown
- 1989-09-29 ZA ZA897422A patent/ZA897422B/xx unknown
- 1989-09-29 FI FI894616A patent/FI98942C/sv not_active IP Right Cessation
- 1989-09-29 NO NO893881A patent/NO177575C/no unknown
- 1989-09-29 JP JP1252463A patent/JPH02160999A/ja active Pending
- 1989-09-29 BR BR898904956A patent/BR8904956A/pt not_active Application Discontinuation
- 1989-10-05 DK DK490389A patent/DK490389A/da not_active Application Discontinuation
- 1989-10-13 AU AU42874/89A patent/AU620158B2/en not_active Ceased
-
1995
- 1995-06-07 US US08/485,852 patent/US5571379A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
NO893881L (no) | 1990-06-11 |
ES2066818T3 (es) | 1995-03-16 |
NO177575B (no) | 1995-07-03 |
DE68919654T2 (de) | 1995-05-24 |
EP0373306B1 (en) | 1994-11-30 |
JPH02160999A (ja) | 1990-06-20 |
DE68919654D1 (de) | 1995-01-12 |
DK490389A (da) | 1990-06-11 |
AU620158B2 (en) | 1992-02-13 |
NO893881D0 (no) | 1989-09-29 |
FI98942B (sv) | 1997-05-30 |
DK490389D0 (da) | 1989-10-05 |
GB8828899D0 (en) | 1989-01-18 |
ZA897422B (en) | 1990-06-27 |
ATE114755T1 (de) | 1994-12-15 |
AU4287489A (en) | 1990-06-14 |
NO177575C (no) | 1995-10-11 |
US5015334A (en) | 1991-05-14 |
BR8904956A (pt) | 1991-04-02 |
EP0373306A2 (en) | 1990-06-20 |
FI894616A (sv) | 1990-06-11 |
FI98942C (sv) | 1997-09-10 |
NZ230799A (en) | 1991-03-26 |
US5571379A (en) | 1996-11-05 |
EP0373306A3 (en) | 1992-04-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | Publication of examined application | ||
MM | Patent lapsed | ||
MM | Patent lapsed |
Owner name: LAPORTE INDUSTRIES LIMITED |