ES2141233T3 - Metodo para la hilatura en solucion de filamentos de celulosa. - Google Patents
Metodo para la hilatura en solucion de filamentos de celulosa.Info
- Publication number
- ES2141233T3 ES2141233T3 ES94915652T ES94915652T ES2141233T3 ES 2141233 T3 ES2141233 T3 ES 2141233T3 ES 94915652 T ES94915652 T ES 94915652T ES 94915652 T ES94915652 T ES 94915652T ES 2141233 T3 ES2141233 T3 ES 2141233T3
- Authority
- ES
- Spain
- Prior art keywords
- spinning solution
- cellulose filaments
- air space
- air
- cellulose
- 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 - Lifetime
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D4/00—Spinnerette packs; Cleaning thereof
- D01D4/02—Spinnerettes
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/06—Wet spinning methods
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Artificial Filaments (AREA)
- Inorganic Fibers (AREA)
Abstract
UN METODO PARA LA PRODUCCION DE FIBRAS LIOCELULARES (125) A BASE DE HILAR UNA SOLUCION DE CELULOSA EN UN SOLVENTE ORGANICO A TRAVES DE UN ESPACIO DE AIRE Y EN UN BAÑO CENTRIFUGO (115) EN EL QUE HAY UNOS ELEMENTOS (121, 122) PARA GENERAR UNA CORRIENTE CRUZADA DE AIRE EN EL ESPACIO DE AIRE.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US6652293A | 1993-05-24 | 1993-05-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2141233T3 true ES2141233T3 (es) | 2000-03-16 |
Family
ID=22070052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES94915652T Expired - Lifetime ES2141233T3 (es) | 1993-05-24 | 1994-05-20 | Metodo para la hilatura en solucion de filamentos de celulosa. |
Country Status (25)
Country | Link |
---|---|
US (3) | US5639484A (es) |
EP (1) | EP0700463B1 (es) |
JP (1) | JP3399955B2 (es) |
KR (1) | KR100301787B1 (es) |
CN (1) | CN1039043C (es) |
AT (2) | AT903U1 (es) |
AU (1) | AU688324B2 (es) |
BR (1) | BR9406541A (es) |
CA (1) | CA2163260C (es) |
CZ (1) | CZ311495A3 (es) |
DE (2) | DE69422711T2 (es) |
ES (1) | ES2141233T3 (es) |
FI (1) | FI955652A (es) |
HU (1) | HU216953B (es) |
MY (1) | MY115308A (es) |
NO (1) | NO309615B1 (es) |
PL (1) | PL311719A1 (es) |
PT (1) | PT700463E (es) |
RU (1) | RU2129622C1 (es) |
SG (1) | SG49294A1 (es) |
SK (1) | SK149295A3 (es) |
TR (1) | TR28441A (es) |
TW (1) | TW257799B (es) |
WO (1) | WO1994028218A1 (es) |
ZA (1) | ZA943387B (es) |
Families Citing this family (54)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT399729B (de) * | 1993-07-01 | 1995-07-25 | Chemiefaser Lenzing Ag | Verfahren zur herstellung cellulosischer fasern sowie vorrichtung zur durchführung des verfahrens und deren verwendung |
US5902532A (en) † | 1994-12-02 | 1999-05-11 | Akzo Nobel Nv | Process for manufacturing cellulose objects |
ATA239194A (de) * | 1994-12-22 | 1996-02-15 | Chemiefaser Lenzing Ag | Vorrichtung zur durchführung eines trocken-/nassspinnverfahrens |
US5984655A (en) * | 1994-12-22 | 1999-11-16 | Lenzing Aktiengesellschaft | Spinning process and apparatus |
GB9500387D0 (en) * | 1995-01-10 | 1995-03-01 | Courtaulds Fibres Ltd | Manufacture of extruded articles |
GB9607456D0 (en) * | 1996-04-10 | 1996-06-12 | Courtaulds Fibres Holdings Ltd | Spinning of filaments |
US6306334B1 (en) | 1996-08-23 | 2001-10-23 | The Weyerhaeuser Company | Process for melt blowing continuous lyocell fibers |
US6221487B1 (en) | 1996-08-23 | 2001-04-24 | The Weyerhauser Company | Lyocell fibers having enhanced CV properties |
US6331354B1 (en) | 1996-08-23 | 2001-12-18 | Weyerhaeuser Company | Alkaline pulp having low average degree of polymerization values and method of producing the same |
US6471727B2 (en) | 1996-08-23 | 2002-10-29 | Weyerhaeuser Company | Lyocell fibers, and compositions for making the same |
US6210801B1 (en) | 1996-08-23 | 2001-04-03 | Weyerhaeuser Company | Lyocell fibers, and compositions for making same |
US6235392B1 (en) | 1996-08-23 | 2001-05-22 | Weyerhaeuser Company | Lyocell fibers and process for their preparation |
GB9622444D0 (en) * | 1996-10-29 | 1997-01-08 | Courtaulds Fibres Holdings Ltd | Spinnerette |
GB9625634D0 (en) * | 1996-12-10 | 1997-01-29 | Courtaulds Fibres Holdings Ltd | Method of manufacture of nonwoven fabric |
AT405531B (de) | 1997-06-17 | 1999-09-27 | Chemiefaser Lenzing Ag | Verfahren zur herstellung cellulosischer fasern |
US6773648B2 (en) | 1998-11-03 | 2004-08-10 | Weyerhaeuser Company | Meltblown process with mechanical attenuation |
DE19915762A1 (de) * | 1999-04-08 | 2000-10-12 | Lurgi Zimmer Ag | Kühlsystem für Filamentbündel |
DE19954152C2 (de) * | 1999-11-10 | 2001-08-09 | Thueringisches Inst Textil | Verfahren und Vorrichtung zur Herstellung von Cellulosefasern und Cellulosefilamentgarnen |
DE10007794A1 (de) * | 2000-02-21 | 2001-06-28 | Zimmer Ag | Polymerzusammensetzung und daraus hergestellter Formkörper |
US6500215B1 (en) | 2000-07-11 | 2002-12-31 | Sybron Chemicals, Inc. | Utility of selected amine oxides in textile technology |
DE10037922A1 (de) * | 2000-08-03 | 2002-02-28 | Zimmer Ag | Verfahren und Vorrichtung zum Extrudieren eines Endlosformkörpers |
DE10043297B4 (de) * | 2000-09-02 | 2005-12-08 | Thüringisches Institut für Textil- und Kunststoff-Forschung e.V. | Verfahren zur Herstellung von Cellulosefasern und Cellulosefilamentgarnen |
DE10200405A1 (de) * | 2002-01-08 | 2002-08-01 | Zimmer Ag | Spinnvorrichtung und -verfahren mit Kühlbeblasung |
DE10200406A1 (de) * | 2002-01-08 | 2003-07-24 | Zimmer Ag | Spinnvorrichtung und -verfahren mit turbulenter Kühlbeblasung |
DE10204381A1 (de) * | 2002-01-28 | 2003-08-07 | Zimmer Ag | Ergonomische Spinnanlage |
DE10206089A1 (de) | 2002-02-13 | 2002-08-14 | Zimmer Ag | Bersteinsatz |
DE10213007A1 (de) * | 2002-03-22 | 2003-10-09 | Zimmer Ag | Verfahren und Vorrichtung zur Regelung des Raumklimas bei einem Spinnprozess |
DE10223268B4 (de) * | 2002-05-24 | 2006-06-01 | Zimmer Ag | Benetzungseinrichtung und Spinnanlage mit Benetzungseinrichtung |
DE10314878A1 (de) * | 2003-04-01 | 2004-10-28 | Zimmer Ag | Verfahren und Vorrichtung zur Herstellung nachverstreckter Cellulose-Spinnfäden |
AT413545B (de) | 2003-07-14 | 2006-03-15 | Chemiefaser Lenzing Ag | Verfahren zur herstellung cellulosischer formkörper |
DE102004024065A1 (de) * | 2004-05-13 | 2005-12-08 | Zimmer Ag | Verfahren zum Herstellen von Endlosformkörpern und Spinnkopf |
DE102004024029A1 (de) * | 2004-05-13 | 2005-12-08 | Zimmer Ag | Lyocell-Verfahren und -Vorrichtung mit Steuerung des Metallionen-Gehalts |
DE102004024028B4 (de) * | 2004-05-13 | 2010-04-08 | Lenzing Ag | Lyocell-Verfahren und -Vorrichtung mit Presswasserrückführung |
DE102004024030A1 (de) * | 2004-05-13 | 2005-12-08 | Zimmer Ag | Lyocell-Verfahren mit polymerisationsgradabhängiger Einstellung der Verarbeitungsdauer |
US20080023873A1 (en) * | 2004-09-17 | 2008-01-31 | Birla Research Institute For Applied Sciences | Process for Preparing a Non-Woven Cellulosic Structure and the Non-Woven Cellulosic Structure Prepared Therefrom |
KR100966111B1 (ko) * | 2005-03-15 | 2010-06-28 | 주식회사 효성 | 셀룰로오스 멀티 필라멘트의 제조방법 |
DE102005040000B4 (de) * | 2005-08-23 | 2010-04-01 | Lenzing Ag | Mehrfachspinndüsenanordnung und Verfahren mit Absaugung und Beblasung |
KR101175336B1 (ko) | 2007-09-07 | 2012-08-20 | 코오롱인더스트리 주식회사 | 라이오셀 필라멘트 섬유의 제조방법, 라이오셀 필라멘트섬유, 및 타이어 코오드 |
JP5452243B2 (ja) * | 2010-01-19 | 2014-03-26 | Tmtマシナリー株式会社 | 溶融紡糸装置の紡糸パック |
CN102477591B (zh) * | 2010-11-19 | 2013-12-11 | 中国纺织科学研究院 | 一种纤维素纤维、其制造方法及设备 |
EP2565304A1 (de) | 2011-09-02 | 2013-03-06 | Aurotec GmbH | Extrusionsverfahren und -vorrichtung |
EP2565303A1 (de) * | 2011-09-02 | 2013-03-06 | Aurotec GmbH | Extrusionsverfahren |
EP2565504A1 (de) * | 2011-09-02 | 2013-03-06 | Aurotec GmbH | Verbindungsstück einer Transportleitung |
EP2719801A1 (de) | 2012-10-10 | 2014-04-16 | Aurotec GmbH | Spinnbad und Verfahren zur Verfestigung eines Formkörpers |
EP2743551A1 (de) | 2012-12-14 | 2014-06-18 | Aurotec GmbH | Absperrorgan mit Spülung |
TWI667378B (zh) | 2014-01-03 | 2019-08-01 | 奧地利商蘭精股份有限公司 | 纖維素纖維 |
US11286579B2 (en) | 2017-03-27 | 2022-03-29 | Toray Industries, Inc. | Fiber production method and carbon fiber production method |
EP3470557A1 (de) * | 2017-10-12 | 2019-04-17 | Lenzing Aktiengesellschaft | Spinnvorrichtung und verfahren zum anspinnen einer spinnvorrichtung |
KR20200123776A (ko) * | 2018-02-27 | 2020-10-30 | 도레이 카부시키가이샤 | 섬유의 제조 방법 및 탄소 섬유의 제조 방법 |
KR102344856B1 (ko) * | 2018-03-29 | 2021-12-28 | 코오롱인더스트리 주식회사 | 고강도 원사를 제조하기 위한 방사팩, 이를 포함하는 원사의 제조장치 및 그 제조방법 |
EP3505659A1 (de) | 2018-08-30 | 2019-07-03 | Aurotec GmbH | Verfahren und vorrichtung zum filamentspinnen mit umlenkung |
GB201820411D0 (en) * | 2018-12-14 | 2019-01-30 | Univ Birmingham | Electrospinning |
EP3674452A1 (en) * | 2018-12-28 | 2020-07-01 | Lenzing Aktiengesellschaft | Spinneret, method of heating a spinneret and lyocell process |
EP3901333A1 (de) | 2020-04-22 | 2021-10-27 | Aurotec GmbH | Herstellung von filamenten mit kontrollierter gasströmung |
Family Cites Families (54)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA756012A (en) * | 1967-04-04 | Mazzolini Corrado | Method and apparatus for the wet-spinning of synthetic polymers | |
US2179181A (en) * | 1936-04-21 | 1939-11-07 | Soc Of Chemical Ind | Cellulose solutions and process of making same |
DE715504C (de) * | 1939-01-07 | 1941-12-23 | Carl Hamel Ag | Vorrichtung zum Spinnen von Viscosekunstfaeden |
US2284028A (en) * | 1939-09-26 | 1942-05-26 | Ubbelohde Leo | Dry spinning process |
BE452577A (es) * | 1942-10-06 | |||
GB807248A (en) * | 1957-01-15 | 1959-01-14 | Dow Chemical Co | Method for spinning polyolefines |
US3002804A (en) * | 1958-11-28 | 1961-10-03 | Du Pont | Process of melt spinning and stretching filaments by passing them through liquid drag bath |
US3118012A (en) * | 1959-05-01 | 1964-01-14 | Du Pont | Melt spinning process |
US3080210A (en) * | 1961-12-01 | 1963-03-05 | Monsanto Chemicals | Spinning of acrylonitrile polymers |
GB957534A (en) * | 1962-01-18 | 1964-05-06 | British Nylon Spinners Ltd | Improvements in or relating to melt-spinning synthetic polymer filaments |
IL21472A (en) * | 1963-06-06 | 1968-02-26 | Monsanto Co | Wet-spinning of synthetic vinyl polymers |
US3221088A (en) * | 1964-11-02 | 1965-11-30 | Eastman Kodak Co | Process and apparatus for orienting yarn |
US3299469A (en) * | 1964-11-18 | 1967-01-24 | Du Pont | Melt-spinning apparatus |
GB1111649A (en) * | 1965-07-08 | 1968-05-01 | Fuji Boseki Kabushiki Kaisha | Method and apparatus for melt spinning of synthetic filaments |
GB1298413A (en) * | 1970-08-04 | 1972-12-06 | Ici Ltd | Process for melt spinning |
DE2113327A1 (de) * | 1971-03-19 | 1972-10-12 | Reifenhaeuser Kg | Vorrichtung zur Herstellung von schmelzgesponnenen Fasern |
US3969462A (en) * | 1971-07-06 | 1976-07-13 | Fiber Industries, Inc. | Polyester yarn production |
US3858386A (en) * | 1971-07-06 | 1975-01-07 | Fiber Industries Inc | Polyester yarn production |
US4038357A (en) * | 1972-06-28 | 1977-07-26 | Imperial Chemical Industries Inc. | Manufacture of synthetic filaments |
US3905381A (en) * | 1973-09-07 | 1975-09-16 | Phillips Petroleum Co | Filament liquid quenching apparatus |
US3996321A (en) * | 1974-11-26 | 1976-12-07 | E. I. Du Pont De Nemours And Company | Level control of dry-jet wet spinning process |
US3932576A (en) * | 1974-12-23 | 1976-01-13 | Concorde Fibers, Inc. | Apparatus for and method of melt spinning |
GB1566581A (en) * | 1975-12-29 | 1980-05-08 | Nippon Zeon Co | Hollow fibres and methods of manufacturing such fibres |
FR2372251A1 (fr) * | 1976-11-26 | 1978-06-23 | Rhone Poulenc Textile | Nouveau procede de filage ou mise en forme de solutions de cellulose et articles ainsi obtenus |
US4078034A (en) * | 1976-12-21 | 1978-03-07 | E. I. Du Pont De Nemours And Company | Air gage spinning process |
US4070431A (en) * | 1976-12-21 | 1978-01-24 | E. I. Du Pont De Nemours And Company | Improved yarn extraction process |
US4416698A (en) * | 1977-07-26 | 1983-11-22 | Akzona Incorporated | Shaped cellulose article prepared from a solution containing cellulose dissolved in a tertiary amine N-oxide solvent and a process for making the article |
US4144080A (en) * | 1977-07-26 | 1979-03-13 | Akzona Incorporated | Process for making amine oxide solution of cellulose |
ZA785535B (en) * | 1977-10-31 | 1979-09-26 | Akzona Inc | Process for surface treating cellulose products |
US4193962A (en) * | 1978-08-11 | 1980-03-18 | Kling-Tecs, Inc. | Melt spinning process |
US4477951A (en) * | 1978-12-15 | 1984-10-23 | Fiber Associates, Inc. | Viscose rayon spinning machine |
US4261943A (en) * | 1979-07-02 | 1981-04-14 | Akzona Incorporated | Process for surface treating cellulose products |
US4285646A (en) * | 1980-05-13 | 1981-08-25 | Fiber Industries, Inc. | Apparatus for quenching melt-spun filaments |
EP0040482B1 (en) * | 1980-05-13 | 1984-08-08 | Celanese Corporation | Process and apparatus for melt spinning filaments in which quench gas and finishing liquid are introduced to the filaments through the fibre pack and spinneret |
DE3162048D1 (en) * | 1980-10-21 | 1984-03-01 | Fiber Industries Inc | Process of, apparatus for, and filament guide for, producing melt-spun filaments |
US4340559A (en) * | 1980-10-31 | 1982-07-20 | E. I. Du Pont De Nemours And Company | Spinning process |
JPS57161113A (en) * | 1981-03-31 | 1982-10-04 | Nippon Ester Co Ltd | Melt spinning method |
US4713290A (en) * | 1982-09-30 | 1987-12-15 | Allied Corporation | High strength and modulus polyvinyl alcohol fibers and method of their preparation |
US4440711A (en) * | 1982-09-30 | 1984-04-03 | Allied Corporation | Method of preparing high strength and modulus polyvinyl alcohol fibers |
DE3406346C2 (de) * | 1983-02-25 | 1986-08-28 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Schmelzspinnvorrichtung zur Erzeugung einer Schar von Filamentfäden |
EP0118088B1 (en) * | 1983-02-28 | 1986-11-26 | Asahi Kasei Kogyo Kabushiki Kaisha | Process and apparatus for preparation of polyparaphenylene terephthalamide fibers |
DD218121A1 (de) * | 1983-10-17 | 1985-01-30 | Chemiefaser Komb Schwarza Wilh | Verfahren zur herstellung von formkoerpern aus celluloseloesungen |
JPS61119704A (ja) * | 1984-11-13 | 1986-06-06 | Mitsui Petrochem Ind Ltd | フイラメント集合体の冷却方法 |
CH673659A5 (es) * | 1987-03-05 | 1990-03-30 | Inventa Ag | |
US4836507A (en) * | 1987-08-10 | 1989-06-06 | E. I. Du Pont De Nemours And Company | Aramid staple and pulp prepared by spinning |
AT392972B (de) * | 1988-08-16 | 1991-07-25 | Chemiefaser Lenzing Ag | Verfahren zur herstellung von loesungen von cellulose sowie einrichtung zur durchfuehrung des verfahrens |
AT397392B (de) * | 1989-11-29 | 1994-03-25 | Chemiefaser Lenzing Ag | Spinndüse |
DE4004798A1 (de) * | 1990-02-16 | 1991-08-22 | Akzo Gmbh | Verfahren und vorrichtung zur herstellung von formkoerpern |
AT395863B (de) * | 1991-01-09 | 1993-03-25 | Chemiefaser Lenzing Ag | Verfahren zur herstellung eines cellulosischen formkoerpers |
JPH0544104A (ja) * | 1991-08-01 | 1993-02-23 | Unitika Ltd | 乾・湿式紡糸方法 |
JPH05117908A (ja) * | 1991-10-24 | 1993-05-14 | Sumika Hercules Kk | 新規な紡糸装置及び該装置を用いる乾湿式紡糸法 |
ATA53792A (de) * | 1992-03-17 | 1995-02-15 | Chemiefaser Lenzing Ag | Verfahren zur herstellung cellulosischer formkörper, vorrichtung zur durchführung des verfahrens sowie verwendung einer spinnvorrichtung |
AT399729B (de) * | 1993-07-01 | 1995-07-25 | Chemiefaser Lenzing Ag | Verfahren zur herstellung cellulosischer fasern sowie vorrichtung zur durchführung des verfahrens und deren verwendung |
AT402738B (de) * | 1993-07-28 | 1997-08-25 | Chemiefaser Lenzing Ag | Spinndüse |
-
1994
- 1994-05-17 MY MYPI94001240A patent/MY115308A/en unknown
- 1994-05-17 ZA ZA943387A patent/ZA943387B/xx unknown
- 1994-05-17 TR TR00500/94A patent/TR28441A/xx unknown
- 1994-05-18 TW TW083104513A patent/TW257799B/zh active
- 1994-05-20 PL PL94311719A patent/PL311719A1/xx unknown
- 1994-05-20 ES ES94915652T patent/ES2141233T3/es not_active Expired - Lifetime
- 1994-05-20 DE DE69422711T patent/DE69422711T2/de not_active Expired - Lifetime
- 1994-05-20 JP JP50037095A patent/JP3399955B2/ja not_active Expired - Fee Related
- 1994-05-20 WO PCT/GB1994/001107 patent/WO1994028218A1/en active IP Right Grant
- 1994-05-20 AT AT0900394U patent/AT903U1/de not_active IP Right Cessation
- 1994-05-20 DE DE9490144U patent/DE9490144U1/de not_active Expired - Lifetime
- 1994-05-20 KR KR1019950704956A patent/KR100301787B1/ko not_active IP Right Cessation
- 1994-05-20 SK SK1492-95A patent/SK149295A3/sk unknown
- 1994-05-20 BR BR9406541A patent/BR9406541A/pt not_active IP Right Cessation
- 1994-05-20 AT AT94915652T patent/ATE189011T1/de not_active IP Right Cessation
- 1994-05-20 PT PT94915652T patent/PT700463E/pt unknown
- 1994-05-20 RU RU95122124A patent/RU2129622C1/ru not_active IP Right Cessation
- 1994-05-20 HU HU9503348A patent/HU216953B/hu not_active IP Right Cessation
- 1994-05-20 CZ CZ953114A patent/CZ311495A3/cs unknown
- 1994-05-20 EP EP94915652A patent/EP0700463B1/en not_active Expired - Lifetime
- 1994-05-20 SG SG1996008854A patent/SG49294A1/en unknown
- 1994-05-20 AU AU67287/94A patent/AU688324B2/en not_active Ceased
- 1994-05-20 CA CA002163260A patent/CA2163260C/en not_active Expired - Fee Related
- 1994-05-20 CN CN94192192A patent/CN1039043C/zh not_active Expired - Lifetime
-
1995
- 1995-04-03 US US08/415,680 patent/US5639484A/en not_active Expired - Lifetime
- 1995-04-03 US US08/415,598 patent/US5951932A/en not_active Expired - Lifetime
- 1995-04-03 US US08/415,199 patent/US5939000A/en not_active Expired - Lifetime
- 1995-11-23 FI FI955652A patent/FI955652A/fi unknown
- 1995-11-23 NO NO954747A patent/NO309615B1/no unknown
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