EP0846197B1 - Verfahren zur herstellung eines hochfesten, hochschrumpfenden polyamid-66-filamentgarns - Google Patents
Verfahren zur herstellung eines hochfesten, hochschrumpfenden polyamid-66-filamentgarns Download PDFInfo
- Publication number
- EP0846197B1 EP0846197B1 EP96926310A EP96926310A EP0846197B1 EP 0846197 B1 EP0846197 B1 EP 0846197B1 EP 96926310 A EP96926310 A EP 96926310A EP 96926310 A EP96926310 A EP 96926310A EP 0846197 B1 EP0846197 B1 EP 0846197B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- yarn
- filament
- winding
- stretching
- filament yarn
- 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
- 229920002302 Nylon 6,6 Polymers 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims description 25
- 238000004804 winding Methods 0.000 claims description 32
- 239000004744 fabric Substances 0.000 claims description 13
- 235000013351 cheese Nutrition 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 10
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 8
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 4
- 235000019253 formic acid Nutrition 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
- D02J1/228—Stretching in two or more steps, with or without intermediate steps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/2964—Artificial fiber or filament
- Y10T428/2967—Synthetic resin or polymer
- Y10T428/2969—Polyamide, polyimide or polyester
Definitions
- the invention relates to a method for manufacturing a high-strength, high-shrinkage polyamide 66 filament yarn for industrial fabrics, in particular Airbag fabric, by multi-stage stretching of Polyamide-66-LOY using at least three heatable Stretching roller units or godet duos and immediate winding of the drawn yarn into one cylindrical package 'in particular to a Cheese and a polyamide 66 filament yarn.
- thermoplastic Filaments are usually copse used, giving them one for further processing cheaper protective twine is issued.
- the disadvantage of Cops is that the maximum Winding speeds in the range of just a few are a hundred meters per minute.
- the cops rewinder is that the yarn capacity a stretch cop generally limited to approx. 4 kg of yarn is. Economic yarn production is after one such procedures are no longer guaranteed.
- the immediate winding of shrinkable yarns too cylindrical coils would be desirable.
- DE-A-34 37 943 describes a process for the production known from polyamide 66 filament yarn, where the yarn has a high strength, a high Elongation and low shrinkage and that, in contrast to yarns with one high shrinkage, can be wound on packages without problems.
- the suitable device consists of several heated stretching roller units. To improve the Drawability of the yarn also becomes sources of heat in the form of contact heaters between the stretching rollers intended. It is known that when Melt spinning process, at a winding speed of 4500 m / min and above, the winding tension so is increased that a paper spool of the winding machine is not more can be removed. The problem with this Procedure solved by relaxing by about 10%. For the No winding of the drawn yarn is given made.
- the well-known yarns are at speeds of a maximum of 20 m / min.
- Aim of the known Process is the production of so-called dimensionally stable filament yarns for tire cord fabrics, with high strength, high elongation and a low Shrinkage, if possible below 5%.
- these yarns they are Stretching conditions and especially the winding conditions optimized on packages.
- the object of the invention is a high-strength, high shrinking polyamide 66 filament yarn to manufacture, which then follows the Can stretch directly on packages.
- Another job is to do both Production speed as well as the unit weight the thread carrier and thus the economy of the To increase the stretching and winding process. Facilities for Allow generation of cylindrical cheese Production speeds of several thousand meters per minute.
- the object is achieved in that at a relaxation ratio of 4 to 10%, the Temperature of the last stretching roller unit before Winding between 70 ° C and 160 ° C, especially 80 ° C and 150 ° C, preferably to 90 ° C - 140 ° C and the Winding tension to less than 0.2 cN / tex, especially to less than 0.15 cN / tex, preferably less than 0.13 cN / tex can be set.
- the thread tension in the winding area essentially becomes by the relaxation ratio, i.e. by the Ratio of the speeds of the last Stretch godet and the winding device determined. It is expedient, the relaxation ratio between 4 and 10% to choose.
- the polyamide 66 filament yarn shows a relative Viscosity (RV) of> 40, measured in 90% Formic acid according to ASTM 0789-81, a strength of at least 60 cN / tex, an elongation of 10-25% and one Thermal shrinkage of 7-11% at 160 ° C and is one Cross-wound bobbin with at least 6 kg thread mass. It is surprisingly successful, such a shrinking Polyamide yarn to 6 kg spools instead of uneconomical copse with a maximum of 4 kg Capacity.
- RV Viscosity
- the polyamide 66 filament yarn according to the invention is for industrial fabrics, in particular for airbag fabrics suitable, which besides high strength also should have a particularly high thermal shrinkage.
- reference numeral 1 is an undrawn one Designated polyamide-66-LOY filament.
- the filament is from a delivery roller, not shown, to a first one heated stretching roller unit 2 fed. Between the Delivery roller and the first stretch roller unit 2 is slightly stretched undrawn filament 1 by approx. 3%, to give the filament 1 a minimal tension.
- the Thread tension must be selected so that a sufficient adhesion between filament 1 and guaranteed the surface of the stretching roller assembly 2 is the one that occurs in the first drawing stage Stretching force to provide the required resistance.
- a third stretching roller unit 4 with a The surface temperature is from 70 ° C to 150 ° C heated stretching roller unit 3 and causes another second stretching.
- the drawn filament 5 is opened a cheese 6 wound.
- Thread tension becomes the filament at a speed spooled, which is set about 6% lower than the speed of the aggregate 4.
- the winding tension is thereby set to, for example, 0.13 cN / dtex.
- All drawing roller units are from the filament 1 wrapped several times around, on the one hand the necessary Ensure frictional connection for stretching and around on the other hand, an adequate heat exchange between the heated roll surfaces and the filament 1 guarantee.
- Fig. 2 differs from Fig. 1 by a Additional stretching roller unit 7.
- the stretching roller unit 7 for example heated to a temperature of 180 ° C.
- the second stretch between the Stretching roller units 3 and 7 carried out during the Temperature of the stretching roller unit 4. compared to Arrangement in Fig. 1 is not changed.
- the speed of the stretching roller assembly 4 is there at least as high as that of the Stretching roller unit 7.
- the device according to FIG. 1 is exemplary and not only suitable for performing the procedure.
- a device suitable for the method can instead of the stretching roller units with separating rollers also consist of godet duos. Furthermore, between the units further elements for thermal Treatment of the yarn such as block or radiant heaters, Hot air or steam nozzles can be arranged. Further is it is expedient to use a Whirl air nozzle or the like to thereby the Improve processability.
- This device is also not for just one Filament thread suitable for finer yarns, for example with a titer of 470 dtex or less, can also use two or more filament threads at the same time stretched and on a correspondingly multi-ended Be wound up.
- the operating speed of this device is in the Range between 300 and 3,000 m / min. It is therefore much more productive than conventional draw twisting machines, who put the thread on cops. Can also Cross-wound bobbins with a thread mass of more than 10 kg getting produced. Opposite the cops makeup with a maximum of 4 kg is much less Manipulations required.
- the high working speed does not limit the usability on the stretching of already wound LOY filament yarns on. In principle, it is also for the Use in an integrated spin-stretch process suitable.
- a LOY filament yarn made of polyamide 66 with a relative Viscosity (RV) in formic acid of 45 and one Spinning titer of 1,270 dtex was doubled over the Device guided according to Figure 1.
- the filament yarn was under the conditions given in Table 1 in two stages in a ratio of 5.3: 1 to the titer 235 dtex stretched and within the winding zone, i.e. between the Stretching roller unit 4 and the package 5 by 6.8% relaxes.
- the temperature of the last stretcher was 230 ° C.
- the filament yarn obtained had one Strength of 74.5 cN / dtex with an elongation at break of 22 % and a thermal shrinkage at 160 ° C of 3.6%. It is however for special applications, e.g. for the area Airbag fabric not because of the low thermal shrinkage suitable.
- a LOY filament yarn made of polyamide 66 with a relative Viscosity (RV) in formic acid of 45 and with one for Airbag fabric suitable high thermal shrinkage was under the essentially same stretching conditions as in Example 1 achieved in that the temperature of the last stretch godet was reduced to 160 ° C.
- the Relaxation ratio was compared to Example 1 slightly reduced to 5.7%.
- the yarn obtained showed a strength of 72 cN / tex with an elongation at break of 16.6% and a thermal shrinkage at 160 ° C of 9.2% on.
- a LOY filament yarn made of polyamide 66 with a relative Viscosity (RV) in formic acid of 45 with one for Airbag fabric suitable high thermal shrinkage was under the essentially same stretching conditions as in Example 1 achieved in that the temperature of the last stretch godet was lowered to 105 ° C.
- the Relaxation ratio was compared to Example 1 slightly reduced to 6.5%.
- the yarn obtained showed a strength of 74.2 cN / tex at one Elongation at break of 17.4% and a thermal shrink 160 ° C from 9.0%.
- the thread tension in the winding area surprisingly amounted to only at this setting 0.13 cN / dtex as in Example 1. This way Cross-wound bobbins with 7.5 kg thread support without any problems getting produced.
- the aspect of these coils was good: the Flanks were straight and there was none on the circumference of the coil Watch shoulder formation.
- Two PA 66 filament yarns with a starting denier of 2,540 dtex were two-stage with one as in Example 3 Stretch ratio 5.4 stretched.
- the temperature of the The stretching roller assembly 4 was lowered to 90 ° C. at a relaxation ratio of 7.5% was one Thread tension in the winding area of 0.074 cN / dtex measured.
- the bobbins contained a yarn mass of 10.3 kg and were flawless with straight flanks and without Shoulder formation on the circumference.
- Table 1 shows the process parameters according to the method according to the invention, with stretching on a stretching machine with three heated stretching roller units, godets with separating roller in two stages at 800 m / min final speed to 5.4 times its initial length.
- the thread properties are given in the same table.
- Last godet [° C] 230 160 105 90 draw ratio 5.3 5.4 5.4 5.4 Relaxation ratio [%] 6.8 5.7 6.5 7.5 Winding tension [cN / dtex] .13 .38 .13 .074 Thread mass per bobbin [kg] 7.5 1.5 7.5 10.3 Coil construction: Good bad Good Good Properties of thread: Titer [dtex] 235 235 235 470 Strength [cN / tex] 74.5 72.0 74.2 74.2 Elongation at break [%] 22 16.6 17.4 18.7 Thermal shrink 160 ° C [%] 3.6 9.2 9.0 9.3
- the device according to the invention has compared to the known devices two major advantages. It On the one hand, two or more threads can be used at the same time can be stretched and wound up and on the other hand can the production speed because of the compared to more efficient winding on packages the conventional drawing twine can be increased.
- the Yarn according to the invention is particularly suitable for the production of Airbag fabrics suitable.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Artificial Filaments (AREA)
- Air Bags (AREA)
Description
Beispiel | 1 | 2 | 3 | 4 |
Prozessparameter: | schlecht | |||
Streckgeschwindigkeit [m/min] | 800 | 800 | 800 | 800 |
Temp. letzte Galette [°C] | 230 | 160 | 105 | 90 |
Streckverhältnis | 5.3 | 5.4 | 5.4 | 5.4 |
Relaxationsverhältnis [%] | 6.8 | 5.7 | 6.5 | 7.5 |
Spulspannung [cN/dtex] | .13 | .38 | .13 | .074 |
Fadenmasse pro Spule [kg] | 7.5 | 1.5 | 7.5 | 10.3 |
Spulenaufbau: | gut | schlecht | gut | gut |
Fadeneigenschaften: | ||||
Titer [dtex] | 235 | 235 | 235 | 470 |
Festigkeit [cN/tex] | 74.5 | 72.0 | 74.2 | 74.2 |
Bruchdehnung [%] | 22 | 16.6 | 17.4 | 18.7 |
Thermoschrumpf 160°C [%] | 3.6 | 9.2 | 9.0 | 9.3 |
Claims (4)
- Verfahren zur Herstellung eines hochfesten, hochschrumpfenden Polyamid-66-Filamentgarns für industrielle Gewebe, insbesondere für Airbaggewebe, durch mehrstufiges Verstrecken von Polyamid-66-LOY Filament (1), mit einer relativen Viskosität RV von wenigstens 40, mittels wenigstens drei beheizbaren Streckrollenaggregaten (2,3,4,7) und unmittelbaren Aufspulen des verstreckten Garns (5) auf einen zylindrischen Garnträger (6), dadurch gekennzeichnet, dass bei einem Relaxationsverhältnis von 4 bis 10 %, die Temperatur des letzten Streckrollenaggregates (4) vor der Aufwicklung zwischen 70°C und 160°C und die Spulspannung auf weniger als 0,2 cN/tex eingestellt werden.
- Verfahren nach den Anspruch 1, dadurch gekennzeichnet, dass das Verstrecken integraler Bestandteil eines Spinn-Streckprozesses ist.
- Verfahren nach den Ansprüchen 1 bis 2, dadurch gekennzeichnet, dass eine Kreuzspule mit wenigstens 6 kg Garn bewickelt wird.
- Polyamid-66-Filamentgarn für industrielle Gewebe, dadurch gekennzeichnet, dass das Polyamid-66-Filamentgarn eine Festigkeit von wenigsten 60 cN/tex, eine Dehnung von 10 bis 25 % und einen Thermoschrumpf von 7-11 % (160°C) aufweist und mit wenigsten 6 kg Auflage auf einer Spulenhülse (Kreuzspule) aufgewickelt ist.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH2415/95 | 1995-08-24 | ||
CH241595 | 1995-08-24 | ||
CH241595 | 1995-08-24 | ||
PCT/CH1996/000288 WO1997008371A1 (de) | 1995-08-24 | 1996-08-20 | Verfahren zur herstellung eines hochfesten, hochschrumpfenden polyamid-66-filamentgarns |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0846197A1 EP0846197A1 (de) | 1998-06-10 |
EP0846197B1 true EP0846197B1 (de) | 2000-03-22 |
Family
ID=4233273
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96926310A Expired - Lifetime EP0846197B1 (de) | 1995-08-24 | 1996-08-20 | Verfahren zur herstellung eines hochfesten, hochschrumpfenden polyamid-66-filamentgarns |
Country Status (9)
Country | Link |
---|---|
US (2) | US6023824A (de) |
EP (1) | EP0846197B1 (de) |
JP (1) | JP3836881B2 (de) |
KR (1) | KR100394932B1 (de) |
CN (1) | CN1076409C (de) |
AT (1) | ATE191019T1 (de) |
DE (1) | DE59604792D1 (de) |
PT (1) | PT846197E (de) |
WO (1) | WO1997008371A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001517741A (ja) * | 1997-09-22 | 2001-10-09 | ローディア インダストリアル ヤーンズ アーゲー | 低欠点6,6ポリアミド工業用糸条 |
KR100537244B1 (ko) * | 1999-12-16 | 2005-12-19 | 주식회사 효성 | 열응력이 우수한 고수축 폴리아미드 섬유의 제조방법 |
KR100631750B1 (ko) | 2005-08-05 | 2006-10-09 | 주식회사 코오롱 | 원사의 제조방법, 이로부터 제조되는 원사, 및 이로부터제조되는 에어백용 원단 |
US8109534B2 (en) * | 2009-07-22 | 2012-02-07 | Highland Industries, Inc. | Highly thermal resistant material for a vehicle safety device |
ES2555036B2 (es) * | 2015-10-29 | 2017-02-17 | Seat, S.A. | Disposición para una funda de asiento de vehículo y su proceso de realización |
IN201621014375A (de) * | 2016-04-25 | 2016-12-30 | ||
CN109023566A (zh) * | 2018-07-30 | 2018-12-18 | 江苏百利达股份有限公司 | 一种高强度高收缩聚酰胺66长丝的制备方法 |
CN114045593B (zh) * | 2021-11-19 | 2023-02-03 | 平顶山神马帘子布发展有限公司 | 一种紧张热定型处理装置及高模量锦纶66工业用长丝生产方法 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2807863A (en) * | 1956-06-22 | 1957-10-01 | Du Pont | Multi-step stretching of nylon cords |
CH497549A (de) * | 1968-04-24 | 1970-10-15 | Rieter Ag Maschf | Verfahren zum Verstrecken und Aufwinden eines Endlos-Filament-Fadens und Vorrichtung zur Durchführung des Verfahrens |
US3716611A (en) * | 1968-08-20 | 1973-02-13 | Monsanto Co | Method for producing high tenacity nylon-66 filaments |
US4042662A (en) * | 1970-05-13 | 1977-08-16 | Akzona Incorporated | Continuous melt spinning and drawing of nylon 6 yarn, while reducing the liveliness of the yarn |
JPS5631010A (en) * | 1979-08-20 | 1981-03-28 | Toray Ind Inc | Production of high knot-strength polyamide monofilament |
DE3437943A1 (de) * | 1983-10-20 | 1985-05-02 | Asahi Kasei Kogyo K.K., Osaka | Polyhexamethylenadipinsaeureamid-faser mit hoher masshaltigkeit und hoher ermuedungsfestigkeit und verfahren zu ihrer herstellung |
DE3400832A1 (de) * | 1984-01-12 | 1985-07-18 | Zinser Textilmaschinen Gmbh, 7333 Ebersbach | Galettenanordnung |
US5139779A (en) * | 1984-09-26 | 1992-08-18 | Sartec Corporation | Feed grain conditioning composition and method of tempering feed grain |
GB8432736D0 (en) * | 1984-12-28 | 1985-02-06 | Du Pont Canada | Spin-draw texturing process |
US5223197A (en) * | 1986-01-30 | 1993-06-29 | E. I. Du Pont De Nemours And Company | Process of making mixed filament yarn |
US5139729A (en) * | 1989-10-20 | 1992-08-18 | E. I. Du Pont De Nemours And Comapny | Process for making low shrinkage, high tenacity poly(epsilon-caproamide) yarn |
US5106946A (en) * | 1989-10-20 | 1992-04-21 | E. I. Du Pont De Nemours And Company | High tenacity, high modulus polyamide yarn and process for making same |
US5077124A (en) * | 1989-10-20 | 1991-12-31 | E. I. Du Pont De Nemours And Company | Low shrinkage, high tenacity poly (hexamethylene adipamide) yarn and process for making same |
US5104969A (en) * | 1989-10-20 | 1992-04-14 | E. I. Du Pont De Nemours And Company | Low shrinkage, high tenacity poly(epsilon-caproamide) yarn and process for making same |
ITMI912375A1 (it) * | 1991-09-09 | 1993-03-09 | Filteco Spa | Modulo di stiro per la produzione o il trattamento di fibre artificiai |
US5240667A (en) * | 1991-11-13 | 1993-08-31 | E. I. Du Pont De Nemours And Company | Process of making high strength, low shrinkage polyamide yarn |
TW333562B (en) * | 1995-02-09 | 1998-06-11 | Schweizerische Viscose | Dimensionally stable polyamide-66-monofilament |
-
1996
- 1996-08-20 CN CN96196440A patent/CN1076409C/zh not_active Expired - Fee Related
- 1996-08-20 WO PCT/CH1996/000288 patent/WO1997008371A1/de active IP Right Grant
- 1996-08-20 JP JP50965997A patent/JP3836881B2/ja not_active Expired - Fee Related
- 1996-08-20 PT PT96926310T patent/PT846197E/pt unknown
- 1996-08-20 EP EP96926310A patent/EP0846197B1/de not_active Expired - Lifetime
- 1996-08-20 DE DE59604792T patent/DE59604792D1/de not_active Expired - Lifetime
- 1996-08-20 US US08/973,646 patent/US6023824A/en not_active Expired - Lifetime
- 1996-08-20 KR KR10-1998-0701316A patent/KR100394932B1/ko not_active IP Right Cessation
- 1996-08-20 AT AT96926310T patent/ATE191019T1/de active
-
1999
- 1999-10-27 US US09/427,605 patent/US6340523B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1194017A (zh) | 1998-09-23 |
DE59604792D1 (de) | 2000-04-27 |
ATE191019T1 (de) | 2000-04-15 |
WO1997008371A1 (de) | 1997-03-06 |
US6340523B1 (en) | 2002-01-22 |
PT846197E (pt) | 2000-07-31 |
US6023824A (en) | 2000-02-15 |
KR19990044083A (ko) | 1999-06-25 |
KR100394932B1 (ko) | 2003-11-28 |
CN1076409C (zh) | 2001-12-19 |
JP3836881B2 (ja) | 2006-10-25 |
EP0846197A1 (de) | 1998-06-10 |
JPH11512154A (ja) | 1999-10-19 |
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