EP2707526A1 - Flame-retardant regenerated cellulose filament fibers and process for production thereof - Google Patents
Flame-retardant regenerated cellulose filament fibers and process for production thereofInfo
- Publication number
- EP2707526A1 EP2707526A1 EP12722080.4A EP12722080A EP2707526A1 EP 2707526 A1 EP2707526 A1 EP 2707526A1 EP 12722080 A EP12722080 A EP 12722080A EP 2707526 A1 EP2707526 A1 EP 2707526A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- less
- fiber
- dtex
- cellulose
- multifilament
- 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
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
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
- D01F2/08—Composition of the spinning solution or the bath
-
- 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
- D01D5/12—Stretch-spinning methods
-
- 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
- D01F1/07—Addition of substances to the spinning solution or to the melt for making fire- or flame-proof 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
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
Definitions
- the invention relates to a process for the preparation of cellulose regenerated fiber, in which viscose is mixed with a dispersion of particles of a flame-retardant solid in a dispersion medium in a certain ratio and the resulting mixture is wet-spun according to certain spinning parameters, and in particular by this Celluloseregeneratfaser prepared, as well as other processes for the production of regenerated cellulose fibers, in particular in the form of multifilaments and on multifilament yarns and textile fabrics formed therefrom (in particular according to IS011612).
- the invention has for its object to provide a method of the type mentioned and a flameproof Celluloseregeneratmaschine, especially -endlosmaschine, in which only small strength losses occur and the strength of the fiber in particular meets the high requirements for protective clothing, in particular according to IS011612.
- this object is achieved with respect to the method in that the particles are brought into a form whose dimension is greater in a particle main axis than in the two orthogonal thereto particle secondary axes and the particle main axes are aligned in the fiber in a direction parallel to their spin direction preferred direction.
- the main axes of the particles incorporated into the fiber are aligned such that ideally their major axes are aligned parallel to the spinning direction of the filament.
- an approximation to this ideal state is that the orientation density function of the incorporated particles in the spinning direction of the filament assumes its maximum.
- the ratio of the particle diameter in the plane spanned by the two particle secondary axes to the length of the particle measured along the main axis is preferably about 1: 3.
- the shape of the particles is a rotational ellipsoid.
- the decrease in the tensile strength in the conditioned state of the flame retardant cellulose regenerated filament fiber compared to a comparable regenerated filament fiber, which does not contain any flame retardant particles, is in particular less than 28%.
- a decrease in strength of less than 25% and particularly preferably a reduction in strength of less than 20% can be achieved.
- Another suitable parameter to choose is the post-stretching of the fiber in a second bath.
- the particle size distribution of the dispersion used as the starting material of the process is adjusted in a nozzle-based dispersing device before it is fed to the mixing process.
- the total solids content of a flame-retardant dispersion available under the trade name Viskofil® Exolit 5060 VP2988 is between 51 and 56 percent, depending on the batch and formulation, with the amount of the batch depending on the batch flame-retardant substance varies between 41 to 47, in particular 45 percent, in particular 43 to 47 (45) percent.
- the nozzle-based dispersing device which is preferably a device available under the product name Serendip Dispersion Device, for example Serendip LPN 60 or Serendip 500, agglomerates of this commercially available dispersion formed by transport and / or storage are broken up. Even after a brief application of energy, this results in a particle size distribution whose average particle diameter is in a particularly favorable range between 0.7 and 0.8 ⁇ m and which has a very narrow particle size distribution.
- the dispersant may be derived from the group of anionic, cationic and nonionic dispersants.
- the addition of the additional dispersants favors a process procedure in which filtering of the mixture from which the regenerated cellulose fiber is spun is carried out only in two coarse filters in which particles larger than 25 ⁇ m are retained.
- the inventive method is thereby significantly more economical, because only the two cheaper in the purchase and maintenance coarse filters are used.
- Kapillartiters of 1, 8 dtex and hole diameters of the spinnerets from 40 to 60 ⁇ .
- the average diameter of the single fiber is between 10 to 30 pm, preferably 11 to 20 pm, a preferred upper limit for the Kapillartiter is 2.6 dtex.
- the preferred capillary density is in the range of 2.2 to 2.6 dtex.
- the viscose is fed to the mixing process as a flow of a viscous pump, whose delivery rate is controlled in dependence on a measurement of the pressure in the outflowing from the mixing flow.
- This viscous pump may be, for example, a gear pump.
- a further advantageous embodiment of the method according to the invention consists in that the dispersion is supplied to the mixing process by a metering pump, the delivery rate of which is regulated as a function of a measurement of the mass flow of the dispersion fed to the mixing process.
- a uniform dosage of the input of dispersion into the cellulose is of particular importance for the strength of the regenerated fiber.
- the maintenance of a fixed constant ratio of dispersion to viscose could, for example, be realized mechanically in the form of a transmission between the viscose pump and the metering pump. However, this would only keep the ratio of the volume flows constant.
- the mass flow-dependent control of the metering pump allows a uniform metering of the dispersion.
- the mass flow meter used is preferably a Coriolis mass flowmeter.
- an eccentric screw pump is preferably used, since it enables significantly longer service lives in dispersions with a high solids content.
- the a-cellulose content of the pulp used is greater than 97.5, in particular 98 percent with a DP greater than 400, in particular greater than 1500 in order to achieve the inventive strengths, and a DP of viscose greater than 400.
- the pulp is also a kraft softwood pulp with an ⁇ -cellulose content of greater than 97.5%, in particular monomodal molecular weight distribution.
- the viscosity of the viscose is preferably greater than 100 kfs at 20 ° C and the incorporated, water-insoluble flame-retardant particles have a rotational ellipsoidal shape, the longer major axes are aligned in a preferred direction parallel to the direction of stretching of the fiber. As a result, a particularly high strength can be achieved.
- the flame-retardant substance used is preferably a phosphorus-containing substance, in particular 2,2'-oxybis [5,5-dimethyl-1,3,2-dioxaphosphorinane] 2,2'-disulphide.
- the phosphorus content of the finished fiber is preferably in the range 2.8% to 4.2%, more preferably 3% to 4%, based on the a-cellulose.
- the limits of the machine parameters are given, within which for the titer 200f100 [corrected: 200f110] a spinning corresponding to the method according to the invention is preferred for the aspect of the invention described hitherto.
- the invention generally relates to a process for the production of regenerated cellulose fiber, in particular a multifilament fiber, in which the viscose is still added a solid before wet-spinning, and in which after at least partially coagulating the filaments in the spinning bath following the extrusion Spinnmasse still takes place a stretching in the secondary bath, from which the filaments are withdrawn at a final take-off speed.
- Fiber products currently being used are based primarily on staple fiber harvests using the Lenzing® FR fiber, in particular due to the market shortage.
- these staple fiber yarns are only of limited suitability for use as warp material.
- This further aspect of the invention is therefore the object of developing a method as mentioned above, that the further processing of the fiber products produced therewith improved, in particular with regard to use as a warp material, in particular for the production of high quality textile products for use, for example, as protective clothing.
- This object is achieved by this aspect of the invention by a development of the said method, which is characterized essentially by the fact that a dimensionless first parameter formed from the quotient of the dimensioning in percent and the final take-off speed measured in meters per minute is less than 2, 5, preferably less than 2.0, in particular less than 1.67.
- the surface quality of the continuous fiber can thus be determined by the number of lint per unit of quantity of the fiber, for example per 1000 meters of length (or per kilogram of yarn).
- the number of lint per 1000 meters means the number of defects on the yarn per 1000 meters of length detectable by a measuring device, whereby a single broken single filament can already cause such a defect, two or more fractured at the same point.
- individual capillaries should not be counted twice or more than once.
- a suitable measuring device is, for example, an Elkometer III from the company Textechno.
- the first parameter is greater than 0.75, in particular greater than 1.0.
- the first parameter may be more preferably less than 1.5, preferably less than 1.33, in particular 1.25. This makes it possible to produce particularly good surface properties of the fibers.
- a dimensionless second parameter which is not formed from the quotient but from the product of the two variables as the first parameter, is in the range from 3200 upwards, preferably greater than 3600, in particular greater than 4000, but preferably in the range of less than 8000 , preferably less than 7500, in particular less than 7000.
- At least a value of 40 m / min, preferably at least 50, more preferably at least 60 and in particular at least> 65 m / min is achieved as the absolute value for the final take-off speed.
- the titer of the multifilament formed is specifically taken into account. It is provided that a dimensionless third parameter formed from the quotient of the second parameter and the root of the titer of the multifilament measured in dtex is not smaller than 300, preferably greater than 330, more preferably greater than 360, and in particular greater than 400.
- the titer specification refers to the total titer of the multifilament, this is 225, for example, and the second parameter is 6300, the third parameter is 420.
- These values of the third parameter relate primarily to multifibers with a total denier of 330 dtex or Less, but can also be used for slightly higher titers to about in the range of 600 dtex. In principle, however, for total titers of greater than 330 dtex, in particular of greater than 600 dtex or even greater than 900 dtex, a lower limit for the third parameter of 160, in particular 200, is preferred.
- the value 680 is preferable. More preferably, the third parameter should be 600 or smaller, more preferably less than 530 and in particular less than 500.
- the total amount of such water-insoluble pigments should preferably not exceed 25%. Furthermore, it is preferred that the final take-off speed measured in meters per minute be below the curve 95 - 0.025 x 2 , preferably below the curve 90 - 0.016 ⁇ .
- a phosphorus-containing flame retardant is preferably added as solid.
- the addition is preferably carried out by adding a dispersion of the particles.
- the addition may be made to the otherwise ready-to-spin mass.
- the above-mentioned dispersants can also find application here.
- a fiber thickness of not less than 60 dtex is preferred. Furthermore, it is preferred that the total titre of the fiber is not is greater than 2500 dtex. With respect to the Kapillartiter a range of 1, 8 to 2.6 dtex is considered to be preferred, in particular in the range of 2.2 to 2.6 dtex, the latter is particularly advantageous for total Gamtiter of less than 330 dtex. As the average diameter of the single fiber, a range between 10 and 30 pm, preferably between 1 1 and 20 pm is considered to be advantageous.
- the amount X F R of the phosphorus-containing flame-retardant solid is metered in at a given total titer T of the multifilament in such a way that it relates to the ⁇ -cellulose in percentages above 16.5 + (290-T) / 90, preferably above 17 + (290-T) / 90, and especially below 19 + (290-T) / 90, more preferably below 18.5 + (290-T) / 90.
- the flame retardant recited in claim 10 is intended.
- These quantities for x FR are primarily for total titers in the range of 330 or less.
- X F R should preferably range between 17.5 to 19.0%.
- a viscose-spun and twisted multifilament is protected, which has been produced in particular according to one of the method aspects described above, and in which, firstly, a number of fluff of 2 flakes per 1000 meter length is not exceeded a lint number of 1 lint per 1000 meters is not exceeded, in particular of 0.5 lint per 1000 meters, and on the other hand, a phosphorus content based on the ⁇ -cellulose of 2.8% or higher, preferably 3% or higher, in particular 3 , 2% or higher, and 4.2% or less, preferably 4% or less, especially 3.8% or less.
- the twisting takes place on suitable twisting machines, for example and preferably on ring twisting machines of the brand Ratti on S500.
- an upper limit for the product of Flusenan- number per 1000 meters in length and based on the ⁇ -cellulose in percent specified phosphorus content is not greater than 8, more preferably not greater than 6, even more preferably not greater than 4 and in particular is not greater than 3.
- Dry tensile strengths in the conditioned state in the range of over 25 cN / tex are achieved for the finished fiber. Furthermore, after the initial shrinkage (first to second wash), the fabric produced therefrom remains under 5% further shrinkage after another 50 washes.
- the product of the chord modulus thus measured in cN / tex be in the range of not less than 280, preferably not less than 320, more preferably not less than 360, with the square root of the denier of the fiber expressed in dtex Furthermore, this product should preferably not exceed 560, more preferably 520 and in particular 480 do not exceed. These product values apply in particular to fibers with a total titer of 330 dtex or less. In absolute terms, the chord modulus should preferably be at least 20 cN / tex for yarn titers of 200 dtex, and at least 30 cN / tex for yarn titers of 120 dtex or less.
- the roller temperature of the drying rollers is in this second aspect of the invention preferably in the range of 40 ° C or higher, preferably 45 ° C or higher, in particular 50 ° C or higher, and preferably 95 ° C or lower, preferably 80 ° C or lower, in particular 70 ° C or lower.
- Particularly preferred pulp of the viscose is a pulp having an intrinsic viscosity of greater than 560 ml / g and an ⁇ -cellulose content of greater than 97.5%, in particular monomodal molecular weight distribution, in particular a kraft-softwood pulp.
- the intrinsic viscosity should be determined according to ISO / FDIS 5351: 2009 (Limiting Viscosity Number [ ⁇ ]).
- a textile fabric which is produced by incorporation of a cellulose regenerated fiber, in particular a multifilament, according to one of the properties described above.
- a stirred tank 1 From a stirred tank 1 is a dispersion of particles of a flame-retardant solid from a metering pump 2 via a check valve 5 a static Mixer 6 supplied.
- the static mixer 6 is fed via a viscose pump 3 viscose. From the static mixer 6, the mixture of viscose and dispersion formed therein flows into another static mixer 7 and continues to be mixed there.
- the flow leaving the static mixer 7 passes through a mass flow meter 8 to a spinning machine in which the regenerated cellulose fiber will burst.
- a control unit 10 generates in response to the measurement signals of the mass flow meter 8 and 9, a control signal for driving the metering pump 2, by the mass ratio of the two flow rates to a desired value is regulated.
- the pressure of the conveyed to the spinning machine flow rate is detected by a pressure sensor 4 and regulated in response to the measurement signal, the delivery rate of the viscose pump 3.
- Fig. 2 is an SEM photograph of a multifilament produced in any case according to the first aspect of this invention. It can be seen, indicated by the arrows, the orientation of the particle main axis in the parallel preferred direction of the fiber.
- an industrial process is understood to mean a process in which the machine used achieves an hourly production of at least 6 or preferably at least 8, in particular at least 10, kg per hour.
- the temperature of the coagulation spinning bath is in the range of 58 to 63 ° C, that of the coagulation bath in the range of 90 to 94 ° C.
- the addition of the flame retardant is such that a solids content in the yarn (based on the ⁇ -cellulose) of 19.8% results.
- the drawing bath is stretched by 85%, the final deduction takes place at a speed of 80 m / min. This results in a first parameter of 1, 06.
- the dimensionless second parameter is 6800 and the dimensionless third parameter is 480.
- the phosphorus content of the fiber relative to the ⁇ -cellulose is in the range of 3.5%. Nevertheless, in the conditioned state, the fiber retains a dry tensile strength in the range of 265 to 285 cN / 100dtex.
- this multifilament yarn (S500) has only 0.4 to 0.6 fluff per 1000 meters. It is therefore ideal for further processing, especially as a warp material.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15003343.9A EP3006608B1 (en) | 2011-05-12 | 2012-05-14 | Flame retardant regenerated cellulose filamentfibres |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011101321A DE102011101321A1 (en) | 2011-05-12 | 2011-05-12 | Flame-retardant cellulose regenerated filament fibers and process for its preparation |
PCT/EP2012/002069 WO2012152451A1 (en) | 2011-05-12 | 2012-05-14 | Flame-retardant regenerated cellulose filament fibers and process for production thereof |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15003343.9A Division EP3006608B1 (en) | 2011-05-12 | 2012-05-14 | Flame retardant regenerated cellulose filamentfibres |
EP15003343.9A Division-Into EP3006608B1 (en) | 2011-05-12 | 2012-05-14 | Flame retardant regenerated cellulose filamentfibres |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2707526A1 true EP2707526A1 (en) | 2014-03-19 |
EP2707526B1 EP2707526B1 (en) | 2015-11-25 |
EP2707526B2 EP2707526B2 (en) | 2017-12-27 |
Family
ID=46125397
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15003343.9A Not-in-force EP3006608B1 (en) | 2011-05-12 | 2012-05-14 | Flame retardant regenerated cellulose filamentfibres |
EP12722080.4A Active EP2707526B2 (en) | 2011-05-12 | 2012-05-14 | Process for the production of regenerated cellulose fibers |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15003343.9A Not-in-force EP3006608B1 (en) | 2011-05-12 | 2012-05-14 | Flame retardant regenerated cellulose filamentfibres |
Country Status (4)
Country | Link |
---|---|
US (1) | US9828697B2 (en) |
EP (2) | EP3006608B1 (en) |
DE (1) | DE102011101321A1 (en) |
WO (1) | WO2012152451A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012018814A1 (en) | 2012-09-24 | 2014-03-27 | Glanzstoff Bohemia S.R.O. | Yarn with flame retardancy and textile fabrics formed therefrom |
AT515152B1 (en) | 2013-11-26 | 2015-12-15 | Chemiefaser Lenzing Ag | A process for pretreating recovered cotton fibers for use in the manufacture of regenerated cellulose moldings |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL199864A (en) | 1955-08-23 | 1900-01-01 | ||
AT193069B (en) | 1955-10-25 | 1957-11-25 | Glanzstoff Ag | Process for the production of artificial threads or other products, such as horsehair, ribbons, films, from viscose |
NL100295C (en) | 1957-12-26 | |||
GB861831A (en) | 1957-12-26 | 1961-03-01 | Algemene Kunstzijde Unie Nv | An improved process for the manufacture of artificial threads and staple fibres fromviscose, as well as the threads and staple fibres thus obtained |
NL284517A (en) † | 1960-10-21 | |||
US3875141A (en) * | 1968-02-16 | 1975-04-01 | Chimiotex | Regenerated cellulose filaments |
DE2311180C3 (en) | 1973-03-07 | 1982-02-25 | Chemiefaser Lenzing AG, 4860 Lenzing, Oberösterreich | Process for the production of flame-retardant regenerated cellulose fibers |
US3997647A (en) * | 1973-10-01 | 1976-12-14 | Kimberly-Clark Corporation | Method of making filaments and webs of chemically modified cellulose fibers |
US4044076A (en) * | 1975-04-18 | 1977-08-23 | Nitto Chemical Industry Co., Ltd. | Method for producing phosphorus-containing polymers |
GB2008126A (en) | 1977-10-13 | 1979-05-31 | Courtaulds Ltd | Regenerated cellulose filaments |
DE2843989A1 (en) | 1977-10-13 | 1979-04-19 | Courtaulds Ltd | FAEDS FROM REGENERATED CELLULOSE |
US4405549A (en) * | 1981-07-13 | 1983-09-20 | International Telephone And Telegraph Corporation | Zinc-free preparation of rayon fibers |
FI64404C (en) * | 1982-01-13 | 1983-11-10 | Ahlstroem Oy | FRAMING PROCESSING OF CELLULOSE FIBERS |
GB9019263D0 (en) * | 1990-09-04 | 1990-10-17 | Sandoz Ltd | Improvements in or relating to organic compounds |
AT413818B (en) * | 2003-09-05 | 2006-06-15 | Chemiefaser Lenzing Ag | METHOD FOR THE PRODUCTION OF CELLULOSIC FORM BODIES |
DE102004059221A1 (en) * | 2004-12-09 | 2006-06-14 | Clariant Gmbh | Acrylic-based, water-based flame retardant dispersion |
DE102006019509A1 (en) * | 2006-04-26 | 2007-10-31 | Clariant International Limited | Aqueous dispersion, useful in mass flameproofing or surface treatment of cellulosic materials e.g. staple fibers, comprises bis-dioxaphosphinane compound as flame retardant, a dispersing agent and optionally a retention agent |
ATE494406T1 (en) | 2006-07-28 | 2011-01-15 | Chemiefaser Lenzing Ag | METHOD FOR PRODUCING FLAME RETARDANT VISCOSE FIBERS |
US8070996B2 (en) * | 2009-01-28 | 2011-12-06 | Lenzing Aktiengesellschaft | Process for the production of flame-retardant viscose fibres |
EP2280100A1 (en) * | 2009-07-31 | 2011-02-02 | Kelheim Fibres GmbH | Use of a regenerated cellulose fibre in a flame-retarded product |
AT508687A1 (en) | 2009-09-01 | 2011-03-15 | Chemiefaser Lenzing Ag | FLAME-RESTRICTED CELLULOSIC FIBER, THEIR USE AND METHOD FOR THE PRODUCTION THEREOF |
-
2011
- 2011-05-12 DE DE102011101321A patent/DE102011101321A1/en not_active Withdrawn
-
2012
- 2012-05-14 WO PCT/EP2012/002069 patent/WO2012152451A1/en active Application Filing
- 2012-05-14 EP EP15003343.9A patent/EP3006608B1/en not_active Not-in-force
- 2012-05-14 EP EP12722080.4A patent/EP2707526B2/en active Active
- 2012-05-14 US US14/116,288 patent/US9828697B2/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2012152451A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102011101321A1 (en) | 2012-11-15 |
EP3006608B1 (en) | 2017-07-05 |
US9828697B2 (en) | 2017-11-28 |
WO2012152451A1 (en) | 2012-11-15 |
US20140210120A1 (en) | 2014-07-31 |
EP2707526B2 (en) | 2017-12-27 |
EP2707526B1 (en) | 2015-11-25 |
EP3006608A1 (en) | 2016-04-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2473657B1 (en) | Fire-retardant cellulose fiber, use thereof, and method for the production thereof | |
AT511638B1 (en) | HIGHLY CELLULOSIC FILAMENT, ITS USE AND METHOD FOR THE PRODUCTION THEREOF | |
DE69025789T2 (en) | Polyvinyl alcohol fiber and process for its manufacture | |
DE202018102052U1 (en) | Recycled fabric structure and knitted shoe surface fabric | |
DE2447715A1 (en) | YARN AND METHOD FOR MANUFACTURING IT | |
AT518061B1 (en) | Modified viscose fiber | |
WO2014118082A1 (en) | Reinforcement layer for articles made of an elastomeric material, preferably for pneumatic vehicle tires and pneumatic vehicle tires | |
DE202013011959U1 (en) | Direct-spun cellulose fibers, their preparation and use | |
AT506268B1 (en) | MICROFIBRE | |
DE19537726A1 (en) | Spinning cellulose multifilament yarns with high additive content | |
EP0608744B1 (en) | Cellulose acetate filaments, an optically isotropic spinning solution therefor and its use for the production of the filaments | |
EP2707526B1 (en) | Process for the production of regenerated cellulose fibers | |
EP3019647A1 (en) | Spunbonded nonwovens and threads made of lignin-containing fiber-forming polymers and a method for the production thereof | |
EP0918894B1 (en) | Method for producing cellulose fibres | |
EP2976449A1 (en) | Hybrid cord consisting of at least two multifilament yarns twisted together | |
DE2308138A1 (en) | FILAMENT YARN AND PROCESS FOR ITS MANUFACTURING | |
EP3494249A1 (en) | Reinforcing material for rubber assemblies, in particular in the form of a tire cord construction and method for the production thereof | |
EP2664697B2 (en) | Flame retardant cellulose regenerated fibers and process for their preparation | |
US2090560A (en) | Process for the manufacture of staple fiber | |
WO1999057348A1 (en) | Polyester fibres and filaments and method for producing them | |
EP1704271A1 (en) | Lyocell-type cellulose fibre | |
AT352852B (en) | MAJORLY SMOOTH FILAMENT YARN WITH INDIVIDUAL STICKING FILAMENT ENDS AND METHOD FOR ITS MANUFACTURING | |
CH206774A (en) | Lathe. | |
DE102012016714A1 (en) | Regenerated cellulose fibers which are present as non-fibrillating cellulose filaments present in form of micro- or super-micro-filaments having less titre, useful e.g. as carbon fiber precursors for producing carbon fibers |
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 |
|
17P | Request for examination filed |
Effective date: 20131114 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20141211 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
INTG | Intention to grant announced |
Effective date: 20150624 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 762668 Country of ref document: AT Kind code of ref document: T Effective date: 20151215 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502012005352 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20160225 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160325 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160225 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 5 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160226 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160325 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R026 Ref document number: 502012005352 Country of ref document: DE |
|
PLBI | Opposition filed |
Free format text: ORIGINAL CODE: 0009260 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 |
|
26 | Opposition filed |
Opponent name: CORDENKA GMBH & CO. KG Effective date: 20160822 |
|
PLAX | Notice of opposition and request to file observation + time limit sent |
Free format text: ORIGINAL CODE: EPIDOSNOBS2 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20160514 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PLBP | Opposition withdrawn |
Free format text: ORIGINAL CODE: 0009264 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160531 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160531 |
|
PLBB | Reply of patent proprietor to notice(s) of opposition received |
Free format text: ORIGINAL CODE: EPIDOSNOBS3 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 6 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160514 |
|
PUAH | Patent maintained in amended form |
Free format text: ORIGINAL CODE: 0009272 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: PATENT MAINTAINED AS AMENDED |
|
27A | Patent maintained in amended form |
Effective date: 20171227 |
|
AK | Designated contracting states |
Kind code of ref document: B2 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R102 Ref document number: 502012005352 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20120514 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20151125 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20190531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190531 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20230526 Year of fee payment: 12 Ref country code: FR Payment date: 20230526 Year of fee payment: 12 Ref country code: DE Payment date: 20230519 Year of fee payment: 12 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230706 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20230522 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20230524 Year of fee payment: 12 |