EP0445708A2 - Procédé pour la fabrication de fibres alvéolaires - Google Patents
Procédé pour la fabrication de fibres alvéolaires Download PDFInfo
- Publication number
- EP0445708A2 EP0445708A2 EP91103256A EP91103256A EP0445708A2 EP 0445708 A2 EP0445708 A2 EP 0445708A2 EP 91103256 A EP91103256 A EP 91103256A EP 91103256 A EP91103256 A EP 91103256A EP 0445708 A2 EP0445708 A2 EP 0445708A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- polycarbonate
- weight
- high polymer
- blowing agent
- polyester
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title abstract 2
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 20
- 239000004417 polycarbonate Substances 0.000 claims abstract description 19
- 229920000728 polyester Polymers 0.000 claims abstract description 16
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 3
- 239000004604 Blowing Agent Substances 0.000 claims description 25
- 229920000642 polymer Polymers 0.000 claims description 20
- -1 polyethylene terephthalate Polymers 0.000 claims description 13
- 239000006260 foam Substances 0.000 claims description 12
- 239000000654 additive Substances 0.000 claims description 7
- 230000000996 additive effect Effects 0.000 claims description 7
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 7
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 7
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 5
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 238000009987 spinning Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 239000003380 propellant Substances 0.000 abstract 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 14
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 7
- 235000017557 sodium bicarbonate Nutrition 0.000 description 7
- 239000000835 fiber Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000011800 void material Substances 0.000 description 4
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- JNLCUVJKTXKKSG-UHFFFAOYSA-N 2-hydroxypropane-1,2,3-tricarboxylic acid;lead Chemical compound [Pb].OC(=O)CC(O)(C(O)=O)CC(O)=O JNLCUVJKTXKKSG-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 239000004425 Makrolon Substances 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000004616 structural foam Substances 0.000 description 1
Classifications
-
- 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
- D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
- D01D5/247—Discontinuous hollow structure or microporous structure
-
- 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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/08—Addition of substances to the spinning solution or to the melt for forming hollow filaments
-
- 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
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
Definitions
- the invention relates to a method for producing foam threads according to the preamble of patent claim 1.
- Foam threads i.e. Filaments or staple fibers with non-continuous cavities are used as carpet fibers and also as filling fibers for blankets, pillows or as lining material for anoraks and other winter clothing.
- One advantage of foam threads is their low density and thus the larger volume of fillers per weight. To achieve a noticeable reduction in density, about 15% void in the finished, crimped foam threads is desired. Since the void fraction decreases during stretching, the void fraction after spinning must be correspondingly larger. With regard to the curling, the cavities must be sufficiently stable against crushing.
- a method for producing foam threads from a synthetic high polymer, a blowing agent and an additive is known from DE-ASen 25 50 080 and 25 50 081.
- the high polymer used is polyester such as polyethylene terephthalate or polyamide such as polyamide-6 and polyamide-66.
- a blowing agent i.e. Gas-forming substance low-boiling hydrocarbons such as pentane, hexane or the gaseous hydrocarbons such as propane or butane are mentioned at room temperature.
- the additive is a silicone oil that is intended to improve the spinnability of the polymer, increase the running time of the spinneret and ensure an even distribution of the cavities.
- DD-PS 103 375 From DD-PS 103 375 a method for producing foam threads from isotactic polypropylene is known, in which sodium bicarbonate and citric acid are used as blowing agents and silicone oil is also used as additive.
- Sodium bicarbonate and citric acid are also used as blowing agents in the production of foamed plastics, for example for structural foam molded parts, cf. e.g. EP 0 059 495 and 0 158 212.
- the plastics mentioned include various high polymers such as polyester.
- sodium carbonate and citric acid lead to good foaming in polyesters, it has been shown that this blowing agent damages the polyester. For example, a degradation of 0.15 intrinsic viscosity units was observed at an intrinsic viscosity of about 0.65, which corresponds to a molecular weight degradation of over 20%.
- the object of the present invention is to provide a method for producing foam threads from a synthetic high polymer, in particular polyester, a blowing agent and an additive, which produces a good foaming effect without damaging the high polymer.
- polycarbonate in the production of polyester threads is already known from DE-OS 27 03 051.
- 3 to 20% by weight of a polycarbonate is mixed with the polyester to be spun before spinning in order to increase the water retention capacity through voids in the threads.
- the high polymers sodium bicarbonate and citric acid and polycarbonate are admixed.
- the addition of the polycarbonate counteracts the degradation of the melt viscosity of the polyester which would otherwise occur. This has resulted in a reduction in the molecular weight of the polyester from the feed polymer to the finished foam thread observed by less than 5%.
- the use of sodium bicarbonate and citric acid as blowing agents has the advantage that these substances only decompose at high temperatures and are toxicologically harmless.
- Polycarbonate also has the advantage of being toxicologically safe.
- the blowing agent composed of sodium bicarbonate and citric acid is expediently added in an amount of 0.15 to 0.80% by weight of the high polymer and the polycarbonate in an amount of 0.5 to 2% by weight of the high polymer.
- a blowing agent composed of sodium bicarbonate and citric acid is understood to mean a largely arbitrary mixture of an alkali bicarbonate and citric acid, preferably in a weight ratio of 1: 3 to 3: 1.
- the blowing agent content is preferably 0.15 to 0.4% by weight for polyethylene terephthalate and 0.3 to 0.6% by weight for polybutylene terephthalate.
- a preferred polycarbonate content is in each case 1.0 to 1.5% by weight.
- Polybutylene terephthalate has a slightly higher blowing agent and polycarbonate content than polyethylene terephthalate.
- the content of third substances to the polyester should be as low as possible.
- the high polymer, the blowing agent and the polycarbonate are mixed in the form of chips before melting and the blowing agent is added as a masterbatch, in particular in a polyolefin.
- the three components can be mixed, for example, in the feed line to the extruder.
- the method according to the invention leads to easily processable foam threads (continuous filaments or staple fibers) as carpet material and also as filling material for clothing.
- carpet or filler fibers are produced by melt spinning and drawing in accordance with the known processes; the process parameters only have to be adjusted slightly in the course of routine experiments.
- thermal processes it should be noted that the insulating effect of the cavities also results in poorer heating of the foam threads.
- polyethylene terephthalate granules which were dried according to customary methods, are mixed with sodium bicarbonate and citric acid in the form of blowing agent masterbatch (HOSTATRON P 1941) and polycarbonate (MAKROLON 16063068), extruded and spun using spinnerets with a round hole cross-section.
- blowing agent masterbatch HOSTATRON P 1941
- polycarbonate MAKROLON 16063068
- the density of the thread is a measure of the foaming of the thread.
- the examples show that it is only through the combination of blowing agent and polycarbonate that a significant reduction in density, i.e. a clear void fraction of the thread is achieved.
- blowing agent HOSTATRON P 1941 being mixed in an amount of 0.6% by weight and polycarbonate in an amount of 1% by weight of the polyester.
- nozzles with different hole diameters as well as different spinning temperatures and take-off speeds are examined.
- the starting materials are the same as in the example series A and B. Instead of a spinneret with a round hole cross section, a hollow profile nozzle is used.
- blowing agent and additive are used as in the previous series. Instead of polyethylene terephthalate granules, however, polybutylene terephthalate granules are now used.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Artificial Filaments (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4007498A DE4007498A1 (de) | 1990-03-09 | 1990-03-09 | Verfahren zum herstellen von schaumfaeden |
| DE4007498 | 1990-03-09 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0445708A2 true EP0445708A2 (fr) | 1991-09-11 |
| EP0445708A3 EP0445708A3 (en) | 1992-10-28 |
| EP0445708B1 EP0445708B1 (fr) | 1994-11-23 |
Family
ID=6401800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91103256A Expired - Lifetime EP0445708B1 (fr) | 1990-03-09 | 1991-03-05 | Procédé pour la fabrication de fibres alvéolaires |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5124098A (fr) |
| EP (1) | EP0445708B1 (fr) |
| JP (1) | JPH04214407A (fr) |
| AT (1) | ATE114338T1 (fr) |
| DE (2) | DE4007498A1 (fr) |
| ES (1) | ES2067069T3 (fr) |
| IE (1) | IE65671B1 (fr) |
| PT (1) | PT96985A (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998019077A1 (fr) | 1996-10-26 | 1998-05-07 | Scapa Group Plc | Fils de charniere extensibles |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1252223B (it) * | 1991-12-16 | 1995-06-05 | M & G Ricerche Spa | Resine poliestere cellulari e loro procedimento di preparazione |
| US5498468A (en) * | 1994-09-23 | 1996-03-12 | Kimberly-Clark Corporation | Fabrics composed of ribbon-like fibrous material and method to make the same |
| US6057024A (en) * | 1997-10-31 | 2000-05-02 | Kimberly-Clark Worldwide, Inc. | Composite elastic material with ribbon-shaped filaments |
| US6983571B2 (en) * | 2000-09-29 | 2006-01-10 | Teel Plastics, Inc. | Composite roofing panel |
| US7951449B2 (en) | 2002-06-27 | 2011-05-31 | Wenguang Ma | Polyester core materials and structural sandwich composites thereof |
| CA2562041A1 (fr) * | 2004-03-31 | 2005-10-20 | Wellman, Inc. | Filament et fibre poids leger faible densite |
| US20050221075A1 (en) * | 2004-03-31 | 2005-10-06 | Travelute Frederick L Iii | Low density light weight filament and fiber |
| US20070155271A1 (en) * | 2005-12-30 | 2007-07-05 | Touzov Igor V | Heat conductive textile and method producing thereof |
| US7735287B2 (en) * | 2006-10-04 | 2010-06-15 | Novik, Inc. | Roofing panels and roofing system employing the same |
| US8020353B2 (en) * | 2008-10-15 | 2011-09-20 | Novik, Inc. | Polymer building products |
| US8209938B2 (en) * | 2010-03-08 | 2012-07-03 | Novik, Inc. | Siding and roofing panel with interlock system |
| CA135807S (en) | 2010-06-04 | 2011-01-27 | Novik Inc | Roof or siding shingle panel |
| CA2838061C (fr) | 2012-12-19 | 2016-03-29 | Novik Inc. | Systeme de coin pour parement et couvertures de toit et methode pour revetir un coin utilisant celui-ci |
| US9388565B2 (en) | 2012-12-20 | 2016-07-12 | Novik Inc. | Siding and roofing panels and method for mounting same |
| DE102014221060A1 (de) | 2014-10-16 | 2016-04-21 | Henkel Ag & Co. Kgaa | Thermisch expandierbare Zusammensetzung |
| CN115849819B (zh) * | 2022-12-09 | 2024-01-12 | 成都精准混凝土有限公司 | 一种修补用混凝土及其生产方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2330782A1 (fr) * | 1975-11-07 | 1977-06-03 | Akzo Nv | Fils et fibres comportant des cavites non continues |
| FR2378879A1 (fr) * | 1977-01-26 | 1978-08-25 | Bayer Ag | Filaments de polyesters hydrophiles |
| AT369440B (de) * | 1981-06-01 | 1982-12-27 | Chemiefaser Lenzing Ag | Verfahren zur herstellung von folienbaendchen |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3884030A (en) * | 1964-07-17 | 1975-05-20 | Monsanto Chemicals | Fibrillated foamed textile products and method of making same |
| DD103375A3 (fr) * | 1970-07-17 | 1974-01-20 | ||
| DE2550081B1 (de) * | 1975-11-07 | 1977-04-28 | Akzo Gmbh | Verfahren zur herstellung eines bikomponentenfadens |
| FR2500463A1 (fr) * | 1981-02-24 | 1982-08-27 | Solvay | |
| US4544594A (en) * | 1983-04-29 | 1985-10-01 | Allied Corporation | Foamed polyamide fibers |
| US4588754A (en) * | 1984-01-04 | 1986-05-13 | General Electric Company | Low modulus structural foam |
| DE3411319C2 (de) * | 1984-03-28 | 1986-12-04 | Boehringer Ingelheim KG, 6507 Ingelheim | Verwendung von Citronensäureestern als Treib- und/oder Nucleierungsmittel zur Herstellung thermoplastischer Kunststoffschäume |
-
1990
- 1990-03-07 US US07/665,680 patent/US5124098A/en not_active Expired - Fee Related
- 1990-03-09 DE DE4007498A patent/DE4007498A1/de not_active Withdrawn
-
1991
- 1991-03-05 EP EP91103256A patent/EP0445708B1/fr not_active Expired - Lifetime
- 1991-03-05 AT AT91103256T patent/ATE114338T1/de not_active IP Right Cessation
- 1991-03-05 DE DE59103556T patent/DE59103556D1/de not_active Expired - Fee Related
- 1991-03-05 ES ES91103256T patent/ES2067069T3/es not_active Expired - Lifetime
- 1991-03-08 PT PT96985A patent/PT96985A/pt not_active Application Discontinuation
- 1991-03-08 IE IE78491A patent/IE65671B1/en not_active IP Right Cessation
- 1991-03-11 JP JP3044964A patent/JPH04214407A/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2330782A1 (fr) * | 1975-11-07 | 1977-06-03 | Akzo Nv | Fils et fibres comportant des cavites non continues |
| FR2378879A1 (fr) * | 1977-01-26 | 1978-08-25 | Bayer Ag | Filaments de polyesters hydrophiles |
| AT369440B (de) * | 1981-06-01 | 1982-12-27 | Chemiefaser Lenzing Ag | Verfahren zur herstellung von folienbaendchen |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998019077A1 (fr) | 1996-10-26 | 1998-05-07 | Scapa Group Plc | Fils de charniere extensibles |
| US6212739B1 (en) | 1996-10-26 | 2001-04-10 | Robert L. Crook | Expandable pintle wires |
Also Published As
| Publication number | Publication date |
|---|---|
| IE910784A1 (en) | 1991-09-11 |
| DE4007498A1 (de) | 1991-09-12 |
| JPH04214407A (ja) | 1992-08-05 |
| EP0445708A3 (en) | 1992-10-28 |
| DE59103556D1 (de) | 1995-01-05 |
| IE65671B1 (en) | 1995-11-15 |
| EP0445708B1 (fr) | 1994-11-23 |
| ATE114338T1 (de) | 1994-12-15 |
| PT96985A (pt) | 1991-10-31 |
| US5124098A (en) | 1992-06-23 |
| ES2067069T3 (es) | 1995-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0445708B1 (fr) | Procédé pour la fabrication de fibres alvéolaires | |
| EP0574870B1 (fr) | Procédé de fabrication d'articles moulés en cellulose | |
| DE2237203A1 (de) | Verfahren zur herstellung von diskontinuierlichen fibrillen | |
| DE2550080B2 (de) | Verfahren zur Herstellung von Filamenten mit nicht durchgehenden Hohlräumen | |
| EP0407901B1 (fr) | Procédé pour la fabrication de fibres de polyéthylène par filage à grande vitesse de polyéthylène à très haut poids moléculaire | |
| DE1907114A1 (de) | Verfahren zum Extrudieren von Polyolefinschaeumen | |
| DE3023726A1 (de) | Verfahren zur herstellung von filamenten | |
| DE1710630A1 (de) | Verfahren zur Herstellung von feingefaserten Filmen aus thermoplastischem Kunstharz | |
| DE1435481A1 (de) | Extrudierte Schaumstoff-Fasern | |
| DE2703051A1 (de) | Hydrophile polyesterfaeden | |
| DE69702751T2 (de) | Dipeptidische benzamidine als kininogenasen-inhibitoren | |
| AT401063B (de) | Verfahren zur herstellung von cellulosischen formkörpern | |
| DE2237285A1 (de) | Verfahren zur herstellung von diskontinuierlichen fibrillen | |
| DE1292301B (de) | Fadenartiges Gebilde aus kristallinem Kunststoff | |
| DE2550081B1 (de) | Verfahren zur herstellung eines bikomponentenfadens | |
| DE2021417A1 (de) | Verfahren zur Herstellung von faserverstaerkten,thermoplastischen Schaumstoffbahnen | |
| EP1334223B1 (fr) | Procede de production de fils synthetiques a base de melanges polymeres | |
| DE2148588A1 (de) | Verfahren zur herstellung von geschaeumten textilen polyester- und polyamidfaeden | |
| DE1629471B2 (de) | Blockmischpolymer aus 75 bis 95 gew.%propylen und 25 bis 5 gew.-% aethylen | |
| DE1106450B (de) | Verfahren zur Herstellung von gut anfaerbbaren Gebilden aus Polyolefinen | |
| DE19836436A1 (de) | Verfahren zur Herstellung von biologisch abbaubaren Fasern und Filamenten | |
| DE2255710C3 (de) | Verfahren zur Herstellung einer nichtgewebten Bahn | |
| DE2505710A1 (de) | Fasergebilde aus folienfasern, verfahren und vorrichtung zu ihrer herstellung und ihre verwendung auf dem textil- und anderen gebieten | |
| DE2512707A1 (de) | Verfahren zur herstellung von synthetischen garnen | |
| DE1469135C (de) | Verfahren zur Herstellung von orientierten Faden aus geschäumtem Polyolefin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE |
|
| 17P | Request for examination filed |
Effective date: 19921008 |
|
| 17Q | First examination report despatched |
Effective date: 19921215 |
|
| RBV | Designated contracting states (corrected) |
Designated state(s): AT BE CH DE ES FR GB IT LI NL |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE ES FR GB IT LI NL |
|
| REF | Corresponds to: |
Ref document number: 114338 Country of ref document: AT Date of ref document: 19941215 Kind code of ref document: T |
|
| REF | Corresponds to: |
Ref document number: 59103556 Country of ref document: DE Date of ref document: 19950105 |
|
| ITF | It: translation for a ep patent filed | ||
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19950127 |
|
| ET | Fr: translation filed | ||
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2067069 Country of ref document: ES Kind code of ref document: T3 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19960212 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19960216 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19960221 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 19960226 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19960229 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 19960308 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 19960312 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19960515 Year of fee payment: 6 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19970305 Ref country code: AT Effective date: 19970305 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 19970306 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Effective date: 19970331 Ref country code: CH Effective date: 19970331 Ref country code: BE Effective date: 19970331 |
|
| BERE | Be: lapsed |
Owner name: HOECHST A.G. Effective date: 19970331 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19971001 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19970305 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19971128 |
|
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 19971001 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19971202 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 19990601 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050305 |