baber/WOPTO huggingface dataset:
Patent CH-671398-A5 (CH)
Title: Lysergol deriv. prepn. - by 1-methylation in DMF
Inventor: IACCHETTI GIOVANNI
IPC: C07D457/02
Filed: 1986-07-31
Abstract: Lisergol derivs. of cpds. of formula I (where A represents a double or single bond or 10 alpha-methoxy residual, Y represents H orlower alkoxyl or benzoyl residue) are prepared by treating cpd. I in DMF medium with methylating septem ensuring prepn.  of 1-methylated derivs.. The reaction is carried out at -15 to +30 deg.C pref. at 0-5 deg.C. The methylating agent may be (a) methyliodide a sodium hydride, or (b) dimethyl oxalate and potassium t-butyl-oxide. USE/ADVANTAGE - The derivs. have adrenolytic and antisero-tomic activity.  The methylation method is new.
Patent CH-671638-A5 (CH)
Title: Optical fibre current transducer using Sagnac interferometer - has two polarised partial beams fed through current sensor coil in opposing directions
Inventor: DAENDLIKER RENE PROF DR
IPC: G01R15/24
Filed: 1986-09-05
Abstract: The current transducer uses 2 partial beams (A,B) obtained from a common light source (8) via a polarisation beam splitter which are fed through a sensor coil (2) wound around the current carrying conductor (1) in opposite directions.  The 2 partial beams (A,B) received from the sensor coil (2) are sepd. out via second beam splitter (6) and fed to an evaluation device (7) providing the measured current from their detected phase shift. Pref. the quarter wavelength plates (3a,3b) lie at the opposite ends of the sensor coil (2) for converting the incoming linearly polarised light into circularly polarised light fed through the coil and vice versa. ADVANTAGE - Simplified measurement and evaluation.
Patent CH-667655-A5 (CH)
Inventor: MEUL THOMAS DR
IPC: C07C327/00
Filed: 1986-09-24
Abstract: 1. Claims for the Contracting States : BE, CH, DE, AT, FR, GB, IT, LI, lU, NL, SE Process for the preparation of 4-alkoxy-2(5H)-thiophenones of the formula :   see diagramm : EP0261668,P7,F1   wherein R1 is a straight or branched-chain alkyl group having 1 to 4 carbon atoms, characterized in that a 3-alkoxy-4-halo-2E-butenoic acid alkyl ester of the formula   see diagramm : EP0261668,P7,F2   wherein R1 and R2 each are a straight or branched-chain alkyl group having 1 to 4 carbon atoms and Hal is chlorine or bromine, is either reacted with an alkali salt of thioacetic acid into a 3-alkoxy-4-thioacetoxy- 2E-butenoic acid alkyl ester, the latter is isolated and further transformed into the end product by means of an alkali hydroxide, or directly reacted to the end product with an alkali hydrogen sulfide. 1. Claims for the Contracting State : ES Process for the preparation of 4-alkoxy-2(5H)-thiophenones of the formula :   see diagramm : EP0261668,P8,F1   wherein R1 is a straight or branched-chain alkyl group having 1 to 4 carbon atoms, characterized in that a 3-alkoxy-4-halo-2E-butenoic acid alkyl ester of the formula   see diagramm : EP0261668,P8,F2   wherein R1 and R2 each are a straight or branched-chain alkyl group having 1 to 4 carbon atoms and Hal is chlorine or bromine, is either reacted with an alkali salt of thioacetic acid into a 3-alkoxy-4-thioacetoxy- 2E-butenoic acid alkyl ester, the latter is isolated and further transformed into the end product by means of an alkali hydroxide, or directly reacted to the end product with an alkali hydrogen sulfide.
Patent CH-674144-A5 (CH)
Inventor: ARNOLD JOSEF BALTHASAR
IPC: A61H33/06
Filed: 1987-10-01
Abstract: A steam generator (1) for steam baths, in particular steam cubicles, is proposed, where a column-shaped housing (2) has an electrically heatable water bath (3) acted upon by air in operation, so that the air surrounding the housing (2) is sucked through a ventilator (4) into the housing (2) and recirculated through the housing (2) and through the water bath (3).
Patent CH-647685-A5 (CH)
Inventor: GRIEDER MAX
IPC: B01D29/075
Filed: 1983-10-18
Abstract: There is disclosed a nutsch filter having blades fitted to a central, vertically positioned hollow shaft by a hollow arm, the blades having a plough-like cutting edge and a spatula-like bottom surface acting in the opposite movement direction. A discharge pipe, arranged concentrically to the hollow shaft, is axially displaceable. The discharge pipe is moved upwards against a cover for sealing the filter casing. The filtration or resuspension or drying of the filter cake takes place in this position. In order to discharge the compressed filter cake, the upper edge of the discharge pipe is set by the blades to the level of the paring or skimming process. Paring of the filter cake and conveying of the pared mass into the central discharge pipe opening takes place in a single operation by means of the blades. On drying, hot air or a hot fluid is passed through the cavities of the arm as well as the parts connected thereto.
Patent CH-660974-A5 (CH)
Title: Medical injection syringe having an angular barrel body
Inventor: SCHWOEBEL ECKHARD
IPC: A61M5/31
Filed: 1982-10-27
Abstract: The outer periphery (10) of the barrel body (2) of the medical injection syringe (1) is of rectangular design when viewed in cross-section, so that there are lateral surfaces (11) on which the fingers of the hand can rest. This secures the injection syringe against displacement or twisting between the fingers. Two opposite lateral surfaces may be slightly arched outwards. <IMAGE>
Patent CH-595044-A5 (CH)
Title: 1-Benzyl or benzoyl-4-(omega phenoxyalkoxy)benzenes
Inventor: KARRER FRIEDRICH DR
IPC: A01N39/00
Filed: 1974-05-09
Abstract: 1-Benzyl or benzoyl-4-(omega phenoxyalkoxy)benzenes insecticides, prepd. from phenoxide salt and omega haloalkoxy benzene
Patent CH-630674-A5 (CH)
Title: Weaving machine
Inventor: TRUMPELT ERICH
IPC: D03C1/16
Filed: 1978-08-08
Abstract: Weaving machine, which is controlled both by a Jacquard machine (4) and by a dobby (3). To locate the weft, only one commercially available motor-driven weft locator (5) is arranged. For the purpose of preventing an overload on the bearings of the full shaft (58) of the weft locator, the drive (60, 61, 62) from the drive shaft (2) of the weaving shaft to the hollow shaft (64) of the weft locator is near to and in the same direction of force as the drive (74, 75, 76) from the full shaft (58) to the driving axle (40) of the Jacquard machine (4). The full shaft (58) is at the same time the driving axle of the dobby. <IMAGE>
Patent CH-631675-A5 (CH)
Title: Device for applying an adhesive strip
Inventor: URUSHIZAKI SAKAE
IPC: B65H35/00
Filed: 1979-10-29
Abstract: This application device comprises a tread (60) for mounting the roll (62) on an annular part (22), the tread (60) being interposed between them, an opening for the passage of the fingers, which is delimited by the annular part (22) and forms a part (21) for engagement of the fingers, a safety stop and a cutting blade (45) fixed to the main body (10) of the device. The blade (45) is inclined towards one end of the device, from the front rearwards. The application device is completely safe during use, without running any risk of injury to fingers. Furthermore, it is well balanced and easy to use, even if it is large. The adhesive strip may be applied under a suitable tension, so that there is no risk of it becoming folded or of deforming the article. <IMAGE>
Patent BE-1005918-A5 (BE)
Title: Composition dentaire adhesive.
Inventor: SAKUMA TETSURO
IPC: A61K6/00
Filed: 1992-08-20
Granted: 1994-03-08
Abstract: Composition dentaire adhésive contenant, dans sa molécule, un carbodiimide représenté par la formule générale : A-N=C=N-A' ....(1) dans lauelle A et A' peuvent être identiques ou différents, et chacun représente un alkyle, un groupe alkyle substitué ou un groupe aromatique, ou bien A et A' peuvent former ensemble une structure cyclique, cette composition pouvant se lier fermement à l'émail et à la dentine des dents, en évitant la formation d'intervalles qui pourraient sinin provoquer des caries secondaires.
Patent CH-616854-A5 (CH)
Title: Monoskate
Inventor: FAVINI MARCO
IPC: A63C17/01
Filed: 1977-09-12
Abstract: The monoskate comprises components which brake its movement when it no longer has the weight of the person acting on it. It has a lever (9, 13) pivotably hinged directly underneath the surface (1) of the monoskate, which lever has a top end (9', 24) which is pressed down by the foot and a bottom end (9'', 9''' and AJ) which has a resting base widened so as to prevent the skate from overturning when, following a contrasting elastic effect, the lever presses against the road surface (21). With the use of these components and the arrangement of their fulcrum directly underneath the surface of the skate or, where necessary, with the pivot seating being incorporated in the plastic material forming the surface itself, the monoskate, when it is freed, is prevented from continuing its travel under its own inertia, which would represent a danger for other people. <IMAGE>
Patent CH-566661-A5 (CH)
Title: Charging circuit with safeguard against wrong polarity connection - has Darlington transistor switching module between rectifier and battery terminal
IPC: H02J7/00
Filed: 1974-09-11
Abstract: The charging circuit for car batteries consists of a load transformer with a rectifier and a smoothing network in the secondary loop. An electronic module (13) sensitive to the direction of the current flow is connected between the rectifier and the battery terminal and is used for setting the value of the load current. The electronic module contains a Darlington transistor circuit (36). The emitter of the transistor is connected to the negative output (32C) of the rectifier (32) via a low ohmic resistor (37), and the common collector connected to the negative pole of the battery. The front transistor (39) of the Darlington circuit has its base connected to voltage sensor (21) which is linked to the output terminals of the battery.
Patent CH-602144-A5 (CH)
Title: Ski safety binding with front jaw and mount
Inventor: WEHRLI HANS
IPC: A63C9/085
Filed: 1974-11-14
Abstract: Ski safety binding has a front jaw with mount holding the toecap of a user's boot and is laterally displaceable w.r.t. a base portion fixed to the ski.  The mount has a spring-loaded locking arrangement enabling it to stay secured to the base portion up to a predetermined stress limit.  When this is exceeded then the binding releases the boot from the ski.      The base portion has a guide profile transverse to the axis of the ski for positive fit of the mount.  The base portion has a support plate with friction-reducing PTFE insets.
Patent CH-583046-A5 (CH)
Title: Snow vehicle with ski-like slide plate - front end carries pivoted hinged upright control rod with handle
IPC: B62B13/02
Filed: 1974-12-13
Abstract: The snow vehicle has a ski-line slide plate, with an upwardly bent tip. The top surface of the plate acts as a tread surface for both feet of the user. The front end of the plate carries a swivable hinged upright control rod (2) with handle. The plate (1) has a slot (3), extending over 2/3 of its length, and open at the end. The part of the slide serving as a tread surface carries a non-slip covering (6) which is divided in the area of the slot. The plate may have two control rod (7) held on it via joints (8). The joints are positioned near the edges of the plate.
Patent FR-2040705-A5 (FR)
Title: Burners for industrial furnaces
IPC: F23D14/00
Filed: 1969-04-10
Granted: 1971-01-22
Abstract: Induced air burners for industrial furnaces particularly for ceramic firing comprises a supply for a gas/primary air mixture entering the furnace through the floor, a secondary air intake entering the combustion chamber horizontally, the chamber being covered except for outlets for the heat and thus separated from the furnace chamber, to enusre complete combustion.
Patent FR-2044090-A5 (FR)
Title: Lightweight, heat resistant building - elements
IPC: C04B28/02
Filed: 1969-05-08
Granted: 1971-02-19
Abstract: Lightweight, heat resistant constructional elements are made using an aqs. suspension comprising hydrated lime, anhydrite and foamed plaster mixed with these or other inorganic binders. The solids content of the suspension is >=30%. The quantity of water required is reduced, giving a shorter setting time and improved pore distribution and structure. The process can be carried out continuously.
Patent FR-2049002-A5 (FR)
IPC: E05C19/00
Filed: 1970-05-29
Granted: 1971-03-19
Abstract: S-TRIAZINE DERIVATIVES ARE OBTAINED BY REACTING A COMPOUND OF THE FORMULA WHEREIN R1 and R2, which may be the same or different, each represents hydrogen or an optionally substituted aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical and X represents oxygen or sulphur WITH A SUBSTANTIALLY EQUIMOLAR QUANTITY OF N-chlorocarbonyl isocyanate at a temperature of from about -100 DEG  C. to about +200 DEG  C., optionally in the presence of an inert organic solvent.
Patent FR-2066810-A5 (FR)
Title: Depolymerization of polyamides
IPC: C07C27/00
Filed: 1970-10-26
Granted: 1971-08-06
Abstract: Polyamides (esp. nylons) are depolymerised by adding an aq. solution of HCHO and SO2, treating for several hours, adding hydrochloric acid to slightly acidify and steam-distilling the solvent to a given volume to permit crystallisation of the acid by cooling. This is filtered and 36 degrees Be aq. NaOH added to make alkaline. The amine is steam-distilled off.
Patent FR-2166401-A5 (FR)
Title: Charges of reactive sealants - where at least one principal reagent is encapsulated for dispersion among other reagents and fille
IPC: E21D20/02
Filed: 1971-07-06
Granted: 1973-08-17
Abstract: A charge of sealant based on >=2 chemical reagents which must be kept separate until required to set, has >=1 of the reagents in capsules dispersed evenly throughout the charge. Pref. (a) the capsules are placed in a destructible container containing a stick of a hardening agent dispersed in a mineral filler, or (b) the capsules are mixed with a powdered curing agent and/or a particulate filler such as sand or pref. chipped gravel, or (c) capsules contg. a mixture of hardener and opt. a latent accelerator are dispersed among capsules of resin with or without an accelerator system. Pref. each capsule is 1 mm dia. unless larger sizes are desirable to prevent loss. Esp. for profiled glass tubes used for tie or belt anchorages in mines or tunnels, including anchorage linings made of e.g. a polyamide or polyethylene. Ensures more uniform mixing and curing of the reagents than use of relatively large ampoules.
Patent FR-2198499-A5 (FR)
Title: Controlling knitting machine storage drums - drums stop automatically when machine stops
IPC: D04B15/38
Filed: 1972-09-04
Granted: 1974-03-29
Abstract: In a knitting machine having at least one rotatable storage drum on which yarn is wound to be axially unwound from the drum for feeding to the knitting needles, there is a generator driven by the machine drive motor which passes current through a solenoid to close and keep closed a switch beamed to a closed position. When the knitting machine stops, the current through the solenoid stops and the storage drum driving circuit is open to stop the storage drums. Twist is not imparted to the knit yarn when the knitting machine is stopped.
Patent FR-2152109-A5 (FR)
Title: Fuel jet for rotary kilns - with sliding perforated runner to vary the flame
IPC: F23D14/00
Filed: 1972-09-05
Granted: 1973-04-20
Abstract: Gaseous fuel burner comprises an exit channel connected to a funnel section, to which gas is supplied from a larger dia chamber, and has a gyrating shaft, with a screw or auger blade attached, mounted centrally in the exit chamber, with its front end inside the burner chamber and its rear end in the fuel gas supply chamber. It slides on the inside of a cone at its rear end, the cone forming the inner wall of the fuel supply chamber. Burner is for use in a rotary kiln and provides a regular distributor of hot gas into the furnace in all forward and sideways directions.
Patent FR-2222874-A5 (FR)
Title: Security lock with curved key - has slots on key passing over vert. internal plates to allow key turning
IPC: E05B35/00
Filed: 1973-03-21
Granted: 1974-10-18
Abstract: The curved key is inserted in a projecting drum which rotates on its own axis when the key is turned. The keyhole is such that the key can only be inserted one way up. Inside the lock are a number of vertical plates of different height and spacing, with central slots to accommodate the key. The key is only able to turn if the slots on its shank correspond with the vertical plates. The slos on the key shank are, when the key is inserted, on its outwardly curved edge facing down and when the key is turned, turning the drum, the slots rotate out of engagement with the plates.
Patent FR-2185317-A5 (FR)
Title: Stable yarn supply packages - esp "lively" yarns using adhesive strip
IPC: B65H75/26
Filed: 1973-05-16
Granted: 1973-12-28
Abstract: The tendency of lively yarns, esp. synthetics such as polyamides which have been twisted, fixed and detwisted, to unwind themselves from the supply spools of looms and knitting machines, when tension on the end is relaxed, is overcome by applying a narrow coating of adhesive to the upper shoulder of the yarn package.
Patent FR-2237418-A5 (FR)
Title: Three dimensional board game - uses historical passage of time indicated on stacked boards
IPC: A63F3/04
Filed: 1973-07-13
Granted: 1975-02-07
Abstract: Three dimensional board and dice game utilizing a time concept involves player initiative devolved from imagination and historical knowledge. Up to three conventional boards (depending on the number of players), superimposed as horizontal floors (1, 2, 3) in a cuboid frame are used, the game embodying the notion of time and thus incorporating a fourth dimension. The base board (1) pref. depicts the chronological passage of historical events, the others (2, 3) being blank at the outset; the game progressing to evolve imaginary parallel courses of events emanating from a historical error. Players are required to advance, retreat, miss a turn or pass onto other boards.
Patent AT-521441-A5 (AT)
Title: Aluminium-Hartlotblechmaterial, das zum flussmittelfreien Löten in einer Schutzgasatmosphäre geeignet ist
Inventor: STEVEN KIRKHAM
IPC: F28F21/08
Filed: 2018-03-14
Abstract: Die Erfindung betrifft ein Aluminiumlegierungs-Hartlotblechprodukt, umfassend eine abdeckende Aluminiummaterialschicht, umfassend 0,5% bis -5% Zn, eine Aluminium-Kernmaterialschicht und eine AI-SI-Legierungs-Hartlotmaterialschicht als ein Zwischenmaterial, das zwischen der abdeckenden Aluminiummaterialschicht und der Aluminium-Kernmaterialschicht angeordnet ist, wobei die Aluminium-Kernmaterialschicht eine Aluminiumlegierung mit einer Solidustemperatur umfasst, die höher als die Liquidustemperatur der AI-Si-Legierungs-Hartlotmaterialschicht ist, und wo- bei die AI-Si-Legierungs-Hartlotmaterialschicht 0,01 % bis 1% Mg enthält.
Patent DD-144916-A5 (DD)
Title: Verfahren zur herstellung von pyrimidinverbindungen und ihren salzen
Inventor: GANELLIN CHARON R
IPC: C07D239/54
Filed: 1979-07-16
Abstract: Die Erfindung betrifft ein Verfahren zur Herstellung von Pyrimidin-Verbindungen der allgemeinen Formel I, in der die Reste Rl, R,, χ, γ, ζ und n die im Erfindungsanspruch angegebene Bedeutung haben. Diese Verbindungen sind Histamin-H-) und -H2-Rezeptorblocker. - Forruel I
Patent DD-156820-A5 (DD)
Title: Textiles erzeugnis zur bereitstellung einer schar paralleler faeden
Inventor: BERGER JOHANN
IPC: D03D15/68
Filed: 1981-03-12
Abstract: Die Erfindung betrifft ein textiles Erzeugnis zur Bereitstellung einer Schar paralleler Faeden, die in einer Maschine zur Herstellung von flaechigem Textilgut wie Gewebe, Gewirke, Netze, benoetigt wird sowie Verfahren und Vorrichtungen dazu. Um die Bereitstellung der Schar paralleler Faeden wirtschaftlicher zu gestalten, ist die Bereitstellung der Schar paralleler Faeden technisch zu vereinfachen, wobei auf den Einsatz von Kettbaeumen oder Spulengatter verzichtet werden kann. Das Erzeugnis, die Lockerware, hat die Form eines Gewebes mit relativ geringer Schussdichte. Der Schussfaden ist in Form von Schussschlaufen eingetragen. Unmittelbar vor dem Einlaufen in eine Maschine zur Herstellung von flaechigem Textilgut wird der Schussfaden seitlich herausgezogen, so dass die verbleibende Schar von Faeden in die Fertigwaren-Herstellmaschine einlaeuft. Die Lockerware kann mit einer aufziehbaren Maschenreihe versehen werden.
Patent DD-299562-A5 (DD)
Title: Multiprozessorsystem
Inventor: REBEL BURGHARD
IPC: G06F15/16
Filed: 1986-11-26
Abstract: Die Erfindung bezieht sich auf die parallele Informationsverarbeitung und betrifft die Struktur eines Prozessorelementes, mit dem leistungsfaehige Multiprozessorsysteme, insbesondere fuer die digitale Bildverarbeitung zusammengeschaltet werden koennen. Dafuer soll eine Struktur geschaffen werden, die sowohl die selbstaendige Arbeit der einzelnen Prozessoren in den ihnen zugeordneten Speicherbereichen ermoeglichen, ohne dasz gefordert wird, dasz alle Prozessorelemente zur gleichen Zeit die gleiche Operation ausfuehren, als auch einen schnellen Datenaustausch zwischen den einzelnen Prozessorelementen gewaehrleistet. Erfindungsgemaesz wird die Aufgabe dadurch geloest, dasz die Prozessoren der Prozessorelemente ueber einen Vierquadrantenspeicher gekoppelt sind, wobei jeder Quadrant als selbstaendiger RAM-Speicher und die vier Quadranten insgesamt als zweidimensionales Schieberegister ausgelegt sind.
Patent DD-263290-A5 (DD)
Title: Verfahren zur herstellung von neuen chinolinderivaten
Inventor: MATSUMOTO JUN-ICHI
IPC: A61K31/54
Filed: 1987-04-22
Abstract: Die Erfindung betrifft ein Verfahren zur Herstellung von Chinolinderivaten der Formel,worin Z eine Aminogruppe oder ein Halogenatom bedeutet,bedeutet, worin R1 ein Wasserstoffatom, eine niedrige Alkyl- oder Haloalkylgruppe, R2 ein Wasserstoffatom oder eine niedrige Alkylgruppe, R3 eine niedrige Alkyl- oder Haloalkylgruppe, R4 ein Wasserstoffatom oder eine niedrige Alkylgruppe, R5 und R6 gleich oder unterschiedlich sind und je ein Wasserstoffatom oder eine niedrige Alkylgruppe bedeuten oder worin R5 und R6 zusammen mit dem Stickstoffatom, an das sie gebunden sind, einen heterocyclischen Ring bilden und n 0 oder 1 bedeutet, mit der Massgabe, dass, wenn Z eine Aminogruppe bedeutet, R (B) bedeutet; und ihre Ester und Salze.
Patent DD-281493-A5 (DD)
Title: Bodenelektrode fuer plasmaschmelzoefen
Inventor: MUSIKOWSKI HANS-DIETER
IPC: H05B7/06
Filed: 1988-03-17
Abstract: Die Erfindung betrifft eine Bodenelektrode fuer Plasmaschmelzoefen zur Herstellung der elektrischen Verbindung zwischen dem Einsatzgut und einem Pol der Stromquelle des Plasmabrenners. Sie findet Anwendung in der Gieszerei- und Schmelztechnik, insbesondere zum Schmelzen von Schrott. Erfindungsgemaesz wird eine erhoehte Funktionssicherheit der Bodenelektrode dadurch erreicht, dasz die Bodenelektrode, die einen im Ofenboden angeordneten gekuehlten Kontaktblock, z. B. aus Grafit oder Metall, aufweist, einen aus elektrisch leitfaehigem Material bestehenden Kontaktstab besitzt, der durch eine durchgehende OEffnung des Kontaktblockes in das Ofengefaesz hineinragt. Der Kontaktstab ist in der OEffnung des Kontaktblockes beweglich und feststellbar angeordnet und elektrisch mit dem Kontaktblock verbunden, der in bekannter Art mit einem Pol der Stromquelle des Plasmabrenners elektrisch verbunden ist.{Plasmaschmelzofen; Plasmabrenner; Plasmaelektrode; Bodenelektrode; Schmelzofen; Schrottschmelzen}
Patent DD-292261-A5 (DD)
Title: Verfahren zur entfernung von lipoproteinen aus biologischem material
Inventor: BIRKENMEIER GERD
IPC: B01D15/08
Filed: 1988-09-27
Abstract: Die Erfindung betrifft ein Verfahren zur einfachen Entfernung von Lipoproteinen aus humanem oder tierischem Material, wie z. B. Serum, Plasma oder Vollblut durch Adsorption an eine modifizierte Nylonmembran. Dadurch lassen sich Proben fuer serologische, klinische und mikrobiologische Tests (z. B. Haemagglutinationshemmtest) in einfacher Weise von stoerenden Lipoproteinkomponenten befreien. Derartige Tests mit der Anforderung der Verwendung von lipoproteinfreiem Probematerial sind in der medizinischen Diagnostik weit verbreitet.{Serum; Blut; Lipoprotein; Haemagglutination; Membran; Serumprotein; Nylonfolie}