baber/WOPTO huggingface dataset:
Patent WO-9526017-A1 (WO)
Title: Signalauswertungsschaltung für einen bewegungsmelder
Inventor: STIERLI PETER
IPC: G01V8/12
Filed: 1995-03-16
Abstract: Der Bewegungsmelder erzeugt ein Sensorsignal (SS), welches einen Gleichstrom- und einen Wechselstromanteil enthält. Die Signalauswertungsschaltung (3) enthält Mittel zur Ausfilterung des Gleichstromanteils, einen Analog/Digital-Wandler (4) und einen Verstärker für den Wechselstromanteil des Sensorsignals. Der Analog/Digital-Wandler (4) ist zur direkten Digitalisierung des gesamten Sensorsignals (SS) vorgesehen, und die Mittel zur Ausfilterung des Gleichstromanteils sind durch ein dem Analog/Digital-Wandler nachgeschaltetes digitales Hochpassfilter (5) gebildet.
Patent WO-0074954-A1 (WO)
Title: Tableau noir a absorption electrostatique
Inventor: HUANG WANMOU
IPC: B43L5/00
Filed: 2000-05-24
Abstract: L'invention concerne un tableau noir à absorption électrostatique qui trouve une large application dans les secteurs de la diffusion d'informations et de l'éducation. Ce tableau noir est équipé d'une prise, d'un panneau, d'un cadre et d'une partie arrière. Un générateur haute tension électrostatique, un pôle inducteur et un élément éliminant la charge électrostatique viennent entre le panneau et la partie arrière. L'extrémité d'entrée du générateur haute tension électrostatique est reliée à une alimentation 220 v tandis que l'extrémité de sortie est reliée au pôle inducteur. Les deux extrémités du pôle inducteur sont aussi connectées à l'élément éliminant la charge électrostatique. Le tableau noir, soumis dans son intégralité à un traitement qui lui confère une isolation et une imperméabilité, est en mesure d'absorber la charge électrostatique tout en servant de support direct à l'écriture. Ainsi, même en utilisant une craie classique, aucune poussière n'est soulevée dans l'air lorsque l'utilisateur efface ce qui est écrit sur le tableau noir. Ce dernier, dont l'aspect extérieur est esthétique, s'avère viable et pratique.
Patent WO-0155415-A1 (WO)
Title: Nouveau polypeptide, aminoacyl-arnt synthetase humaine de type ii 75, et polynucleotide codant pour ce polypeptide
Inventor: MAO YUMIN
IPC: C12N15/57
Filed: 2001-01-15
Abstract: L'invention concerne un nouveau polypeptide, une aminoacyl-ARNt synthétase humaine de type II 75, et un polynucléotide codant pour ce polypeptide ainsi qu'un procédé d'obtention de ce polypeptide par des techniques recombinantes d'ADN. L'invention concerne en outre les applications de ce polypeptide dans le traitement de maladies, notamment des tumeurs malignes, de l'hémopathie, de l'infection par VIH, de maladies immunitaires et de diverses inflammations. L'invention concerne aussi l'antagoniste agissant contre le polypeptide et son action thérapeutique ainsi que les applications de ce polynucléotide codant pour l'aminoacyl-ARNt synthétase humaine de type II 75.
Patent WO-0204504-A1 (WO)
Title: Nouveau polypeptide, sous-unite humaine 9.46 de proteine g, et polynucleotide codant ce polypeptide
Inventor: MAO YUMIN
IPC: C12N15/12
Filed: 2001-06-18
Abstract: L'invention concerne un nouveau polypeptide, une sous-unité humaine 9.46 de protéine G, et un polynucléotide codant ce polypeptide ainsi qu'un procédé d'obtention de ce polypeptide par des techniques recombinantes d'ADN. L'invention concerne en outre les applications de ce polypeptide dans le traitement de maladies, notamment de maladies liées aux dysfonctionnements des récepteurs hormonaux, de toutes sortes de tumeurs et comme analgésique, sédatif, antitussif dans le traitement de l'asthme, de diarrhées, de la constipation, de coliques du tractus gastro-intestinal et des voies urinaires, de maladies psychologiques (agitation, hallucinations et anxiété) et de l'intoxication due à l'ingestion d'analgésiques de type morphine (problèmes respiratoires). L'invention concerne aussi l'antagoniste agissant contre le polypeptide et son action thérapeutique ainsi que les applications de ce polynucléotide codant la sous-unité humaine 9.46 de protéine G.
Patent CU-22220-A1 (CU)
Inventor: RODRIGUEZ MARTINEZ CLAUDIO
IPC: C12N1/20
Filed: 1989-06-15
Abstract: EL METODO DESCRITO EN LA PRESENTE SOLICITUD SE RELACIONA CON LA INDUSTRIA                           AGITACION PERMITEN LA SOLUBILIZACION DE GRAN PARTE DE LA PROTEINA QUE                               COMPONE A ESTE ORGANO. LOS VALORES DE LOS PARAMETROS DEL PROCESO DE                                 HIDROLISIS PERMITEN OBTENER UN PRODUCTO CON UN ALTO CONTENIDO DE NITROGENO                          AMINICO Y TOTAL, ASI COMO UN ADECUADO GRADO DE HIDROLISIS. LA BASE                                  NUTRITIVA OBTENIDA A PARTIR DEL HIGADO SEGUN EL METODO PROPUESTO PUEDE SER                          EMPLEADA COMO INGREDIENTE PARA EL CULTIVO DE PARASITOS O EN MEDIOS PARA EL                          DIAGNOSTICO CLINICO Y EL CONTROL DE LA CAL        IDAD DEL AGUA Y LOS ALIMENTOS EN SUSTITUCION DE PEPTONAS O EXTRACTOS.                               MEDICO FARMACEUTICA Y EN ESPECIFICO CON LA PRODUCCION DE INGREDIENTES Y                             MEDIOS PARA EL CULTIVO DE MICROORGANISMOS. LA NOVEDAD CONSISTE EN EL EMPLEO                         DE CANTIDADES ADECUADAS DE ENZIMA PAPAYINA EN CALIDADDE AGENTE HIDROLIZANTE                         PARA LA HIDROLISIS DEL HIGADO QUE CON ANTERIORIDAD HA SIDO DISPERSADO EN                            UNA SOLUCION ACUOSA DURANTE UN PERIODO DE 10 A 30 MINUTOS. LA RELACION PESO                         EN VOLUMEN DE HIGADO Y SOLUCION, ASI COMO EL VALOR DEL PH Y LA VELOCIDAD DE\!
Patent WO-0006963-A1 (WO)
Title: Procede et appareil permettant d'empecher l'accumulation de boues
Inventor: KRCMAR PETR
IPC: F22B1/02
Filed: 1999-07-15
Abstract: L'invention se rapporte à un procédé permettant d'empêcher l'accumulation de boues dans des dispositifs de transfert de chaleur, notamment dans des générateurs de vapeur et des échangeurs thermiques dans lesquels le transfert de chaleur se produit entre un milieu interne qui s'écoule dans un ensemble de tubes (2.4) fixé à une plaque tubulaire (1.1) et un milieu externe qui s'écoule autour des tubes (2.4) à l'intérieur d'un espace tubulaire externe relié à une entrée (3.1) et une sortie (3.2) du milieu externe, un flux régulé d'un milieu de nettoyage étant introduit dans l'espace tubulaire externe adjacent à la plaque tubulaire (1.1). L'invention se rapporte à un appareil permettant la mise en oeuvre dudit procédé et comportant un canal (5.0) installé dans la région adjacente à la zone où les tubes (2.4) sont fixés à la plaque tubulaire (1.1), ledit canal (5.0) comportant une paroi supérieure (5.8) et une paroi périphérique (5.9) ainsi qu'au moins une ouverture (5.3) permettant l'entrée d'un milieu de nettoyage et au moins une ouverture (5.5) permettant l'évacuation dudit milieu de nettoyage.
Patent WO-0162868-A1 (WO)
Inventor: FROEB HARTMUT
IPC: H01L33/48
Filed: 2000-02-23
Abstract: The invention relates to a photo-luminescence layer in the optical spectral region and in adjacent spectral regions on the basis of a solid solution of organic colours. The photo-luminescence layer consists of organic colour molecules having a low colour concentration and a matrix material that is made of metal oxides and is provided with a slightly understoichiometric oxygen content. The invention also relates to a method and a device for producing the photo-luminescence layer.
Patent WO-0107297-A1 (WO)
Title: Vorrichtungen und verfahren zur herstellung einer airbagvorrichtung sowie damit hergestellte airbagvorrichtung
Inventor: MUELLER OLAF
IPC: B60R21/20
Filed: 2000-07-24
Abstract: Die Erfindung betrifft ein Verfahren zur Herstellung einer Airbagvorrichtung mit einer Airbagklappe, die die zum Austritt eines Airbags von einem Insassen weg zu öffnen ist, wobei die Airbagklappe zusammen mit einer Armaturentafel, in die sie integriert ist, eine gemeinsame Abdeckschicht aufweist, die dem Insassen zugewandt ist. Dabei ist weiterhin vorgesehen, dass ein Gewebe innerhalb der Fläche der Airbagklappe an oder in die Abdeckschicht gebracht und mit dieser fest verbunden wird, bevor zwischen diesen Verbund und einen Airbagklappenträger ein Schaum eingebracht wird, um aus der Abdeckschicht, dem Gewebe, dem Schaum und dem Airbagklappenträger die Airbagklappe zu bilden. Die Vorrichtung enthält ein Werkzeug mit Gewebehalteeinrichtungen, mittels denen das Gewebe innerhalb der Fläche der Airbagklappe mit der Abdeckschicht derart zusammenbringbar ist. Die Airbagklappe aufweist einen Aufbau mit einem Abdeckschicht, einem mit letzterer fest verbundenem Gewebe, einem Schaum und einem zumindest im wesentlichen stabilen Airbagklappenträger in dieser Reihenfolge.
Patent WO-0147731-A1 (WO)
Title: Vorrichtung zum belüften eines kraftfahrzeugs
Inventor: BOIGER PETER
IPC: E05F15/00
Filed: 2000-12-06
Abstract: Es wird eine Vorrichtung zum Belüften eines Kraftfahrzeugs vorgeschlagen, bei der ein Luftgütesignal (11), das eine verminderte Luftqualität signalisiert und ein Öffnungssignal (22), das einen geöffneten Zustand eines von einem Verstellantrieb (19, 20) betätigten Teils oder einen Öffnungswunsch anzeigt, einer UND- Verknüpfung (15) zugeleitet werden, deren Ausgangssignal (24) einer Warneinrichtung (25, 26) zugeleitet ist.
Patent WO-0204830-A1 (WO)
Title: Cylindre capteur
Inventor: ROHS ULRICH
IPC: B60T11/16
Filed: 2001-07-09
Abstract: L'invention concerne un cylindre capteur comportant un piston opposé (2), entraîné par un bras d'actionnement (4), ainsi qu'un accumulateur d'énergie (11) qui coopère avec le bras d'actionnement. Le système d'ajustement de la pression (15) avec lequel l'accumulateur d'énergie coopère en outre, module l'énergie de l'accumulateur d'énergie, en fonction d'une pression du fluide. Le système d'ajustement de la pression comprend un système de retenue mécanique.
Patent WO-02064963-A1 (WO)
Title: Unterteil für einen gebauten kolben
Inventor: GEISSLER CHRISTOF
IPC: B21K1/18
Filed: 2001-12-05
Abstract: Ein Unterteil eines gebauten Kolbens soll auf einfache Weise mit ausreichender Schaftlänge hergestellt werden. Hierzu weist das Unterteil die folgenden Merkmale auf: - das Unterteil (1) besteht aus zwei miteinander verschweissten oder verlöteten Hälften (2,3), - die Trennebene in Druck-Gegendruckrichtung, - die beiden Hälften (2,3) bestehen aus fliessgepresstem oder geschmiedetem Stahl, - in Bolzenrichtung ist der Schaft (5) nach Art eines Kastenkolbens gegenüber dem Kolbendurchmesser zurückgenommen.
Patent WO-02094401-A1 (WO)
Title: Vorrichtung und verfahren zum nachträglichen ermitteln von zeitdaten einer in der vergangenheit vorgenommenen handlung
Inventor: WILBERT BRUNO
IPC: A63F13/02
Filed: 2002-05-16
Abstract: Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum nachträglichen Ermitteln von Zeit-Daten einer in der Vergangenheit vorgenommenen Handlung. Hierbei können bei einer ersten Variante Zeit-Daten (z.B. Jahr, Monat, Tag, Stunden, Minuten, Sekunden) einer hochgenauen Uhr, beispielsweise einer Funkuhr, mit zusätzlichen Daten (z.B. Antwortdaten A, B, C, D bei einem Multiple-Choice-Quiz) zum Zeitpunkt der Vornahme der Handlung in einem Speicher abgelegt werden. An einer anderen Stelle werden diese im Speicher abgelegten Daten erfasst und ausgewertet. Bei einer zweiten Variante werden keine Zeit-Daten und auch keine zusätzlichen Daten abgespeichert, sondern nur Zählerstände eines Impulszählers, dessen Zählerstand bei Vornahme der Handlung abgespeichert wird. An anderer Stelle befindet sich eine hochgenaue Uhr, die den letzten Zählerstand des Zählers mit der aktuellen Zeit korreliert. Aufgrund dieser Korrelation wird dann rechnerisch ermittelt, welchen Zeit-Daten die jeweiligen Zählerstände des Impulsspeichers zuzuordnen sind. Diesen Zeit-Daten sind wiederum zusätzliche Daten zugeordnet, z.B. die Daten A oder B oder C oder D von Antworten bei einem Multiple-Choice-Quiz.
Patent WO-03038273-A1 (WO)
Inventor: HOLZGREFE VOLKER
IPC: F02M61/16
Filed: 2002-08-22
Abstract: The invention relates to a fuel injection valve (1) for directly injecting fuel into the combustion chamber of an internal combustion engine. Said valve comprises a valve needle (4) which is arranged in a nozzle body (3), can be controlled by an actuator (7), and is acted upon by a return spring (9) in such a way that a valve closing body (5) - which is co-operatively connected to the valve needle (4) and faces the combustion chamber - rests against a valve seat surface (6) in a sealing manner, in the inoperative state of the actuator (7). A first spray cone angle α1 is thus associated with a first lift state of the valve needle (4), and a second spray cone angle α2  is associated with a second lift state of the valve needle (4).
Patent DE-1801179-A1 (DE)
Title: Appts for moulding a socket with internal peripheral - groove, on the end of a thermoplastic
Inventor: MOEDDEL ADOLF
IPC: B29C57/08
Filed: 1968-10-04
Abstract: Apparatus for moulding a socket with internal peripheral groove, on the end of a thermoplastic. G1-. consists of: (a) a composite mandrel the annular lower part being locally fixed and the upper part, to which is fixed a core plunger, passing through the central aperture in the lower part, and being axially displaceable by means of a hydraulic actuator. The external form of the composite mandrel conforms to the required shape of the socket and the upper and lower parts are separated by a gap in the closed position which is then in communication with a feed channel for the introduction of compressed air. (b) A composite blow-mould comprising two pairs of split moulds the upper one being displaceable, preferably hydraulically, both radially and axially and the latter being axially fixed and displaceable only radially. A peripheral groove is formed at the parting line of the upper and lower split moulds, aligned with the peripheral gap in the composite mandrel.
Patent DE-1801677-A1 (DE)
Title: Stabilising halogen contg polymers esp pvc with zinc
Inventor: FRANS SCHMETS GERHARD HUBERTUS
IPC: C08K5/098
Filed: 1968-10-07
Abstract: Stabilisers for halogen-contg. polymers (esp. vinyl chloride (co)polymers) comprising (a) a calcium salt of an alkoxybenzoic acid HOOC(C6H4)OR where R=C1-4 alkyl, and (b) a zinc salt of an aliphatic monocarboxylic acid. Preferred components (a) are o- or m-alkoxy-benzoates, esp. calcium o-methoxy benzoate. Zinc salt (b) is pref. derived from a C6-18 aliphatic monocarboxylic acid, e.g. caproic acid, lauric acid, myristic acid, palmitic acid or stearic acid. The preferred ratio Ca:Zn presen= 1.5:1 to 2.5:1, esp. 2:1, and at least 60% of the Ca present should be in the form of the alkoxybenzoate.
Patent DE-1807145-A1 (DE)
Title: Manufacturing fibrillated continuous filament yarns
Inventor: CIRIL PREVORSEK DUSAN
IPC: D01D5/42
Filed: 1968-11-05
Abstract: Manufacturing fibrillated continuous filament yarns of high bulk and good tensile strength, in which the yarn is submitted to a two-stage process of mechanically splitting the filaments and then of spreading them to disorient the fibrils, and enabling them. The second stage is conveniently carried out by submitting the fibrillated yarn from the first stage to the action of a high velocity stream of gas, e.g. air. The first stage treatment whereby the individual filament produced from a polymer mixture of two substantially immiscible polymers in split and torn away in places to produce the fibrils, may be carried out in a number of ways e.g. (1) by passing the yarn (or strip of thin film) first between a pair of axially grooved rolls and then through a pair of wire-brush rolls, or (2) the yarn may be passed, preferably at an angle, over a sharp edged plate or guide and then through a pair of wire brush rolls or (3) passing the yarn through a pair of aligned holes in parallel plates, the second of which can be caused to reciprocate in its plane. Other combinations of these or equivalent methods may be used. In each case the product yarn is submitted to the treatment with a high velocity gas stream to produce the final bulky yarn.
Patent DE-1810859-A1 (DE)
Title: Vulcanisation of rubber using benzothiazole 2
Inventor: GERWYN LLOYD DEWI
IPC: C08K5/47
Filed: 1968-11-25
Abstract: Vulcanising agent for sulphur-vulcanisable rubbers, comprising (a) 0.3-0.8 pts. benzothiazole 2-sulphenamide and (b) 0.1-0.4 pts. of a thiurammo-nosulphide per 100 pts. rubber, where the total addn. of (a) + (b) = 0.5-1.0 pts. per 100 pts. rubber. New vulcanising agents give fast vulcanisation times which are not so adversely affected by the addition of antioxidants such as N-(1,3-dimethylbutyl) N'-phenyl-p-phenylene diamine (IV) as is the case when using (I) only.
Patent DE-1816566-A1 (DE)
Title: Thiolphosphoric acid esters fungicide
Inventor: HOFFMANN DR HELLMUT
IPC: C07F9/177
Filed: 1968-12-23
Abstract: New compds. of formula (I): (where R is alkyl, X and Y are Br or Cl, if X is Br, the Y is H) are prepd. by reacting equimolar amts. of a compd. of formulae (II) with a sulphonic acid halide of formulae (III).
Patent DE-1905344-A1 (DE)
Title: Synthetic material for braiding
Inventor: EBERLE DIPL-CHEM DR HANS
IPC: B29C44/46
Filed: 1969-02-04
Abstract: Profile of the material is suitable; it can be split. Preferably, it has no visible joint but has dividing surfaces or rupture regions running parallel to the axis. It is of foamed thermoplastics, extruded in known way.
Patent DE-1915621-A1 (DE)
Title: Long-life can production
Inventor: HEINZ PUETTER JUN
IPC: C23C14/00
Filed: 1969-03-27
Abstract: Sterilisable long-life cans made from extruded plastics bodies and injection-moulded base and lid, coated outside in metal. The metal is best applied after filling and closing the cans, using a vacuum vaporizing process.
Patent DE-1941620-A1 (DE)
Title: Ready-cooked meat/vegetable packs
Inventor: HENNING WOLFGANG
IPC: A23L5/10
Filed: 1969-08-16
Abstract: Raw, pre-cooked or blanched meat, fish and vegetables etc. with sauce, flavour, spices as required are placed in plastic film packs which can withstand temp. of up to at least 100 degrees C and are thus cooked in a flow of air in an enclosed space whose temperature is controlled to keep the food below 100 degrees C during the process.
Patent DE-1949104-A1 (DE)
Title: Polyester truncheon
Inventor: RUYTERS J H
IPC: F41B15/02
Filed: 1969-09-29
Abstract: PLASTIC CONSTRUCTION BATON OR TRUNCHEON Fabricated from a flexible elastic material with a flow limit such that no permanent deformation occurs on bending.
Patent DE-1961072-A1 (DE)
Title: Injection moulding equipment for foaming - thermo-plastics
Inventor: NIER ERICH-ARTHUR
IPC: B29C44/34
Filed: 1969-12-05
Abstract: A heated screw conveyor plasticises the thermoplastic and transports the mass to a pressurised storage chamber where a foaming agent is added. This chamber is connected to a second screw also under pressure which conveys it, after decompression, through a mould head. Process is continuous.
Patent DE-2012584-A1 (DE)
Title: Precast concrete component
IPC: E04C3/34
Filed: 1970-03-17
Abstract: Precast concrete stay or strut member remains in its mould which provides the outer casing. The mould is cavity walled plastics and the cavities can be stiffened inside to provide rigidity and better resistance to loading. The mould can be centrifugal, injection moulded, extruded, or deep drawn from film. The mould protects the concrete from weather, corrosion etc. and at the same time provides the decorative finish required.
Patent DE-2020052-A1 (DE)
Title: Injection moulding machine esp for expanded plastics
Inventor: BIELFELDT FRIEDRICH
IPC: B29C45/10
Filed: 1970-04-24
Abstract: Injection moulding machine has a mould closing unit which can be adjusted around a horizontal axis placed across the direction of the mould closing movement, or around a vertical axis, or around both these axes, esp. to a final angle of 90 degrees, so that moulds with different injection openings can be used. Injection moulding can be easily carried out with the mould in each position of the closure unit, thus facilitating the moulding of expanded plastics articles.
Patent DE-2026541-A1 (DE)
Title: Textile bobbin conveyor for full bobbins
IPC: B65H67/06
Filed: 1970-05-30
Abstract: Full bobbins roll down a ramp to a transfer position where each end engages in a guide such that the bobbin is supported with its axis at a predetermined position, and a platform carried on a vertically arranged endless belt passes between the guides and carries the bobbin to a work position supported on it. The device ensures correct bobbin orientation, and also that only one bobbin is carried on each platform.
Patent DE-2030572-A1 (DE)
Title: New disulphonylamides and dyestuffs derived from them
IPC: C09B62/523
Filed: 1970-04-30
Abstract: New disulphonylimide dyestuffs (I) of structure: R1 -(SO2NHSO2-R-X)n (where R1 is a chromophore gp., n is 1-4; R is a >=C3 straight chain alkyl and the gp. -SO2NHSO2-R-X is attached directly or via a bridging bond to a C-atom of an aromatic-carboxylic or aromatic-heterocyclic ring of the chromophore R1 and X is a gp. susceptible to anionic elimination). The gp. R1 can belong to azoic, anthraquinonic or phthalocyanine series of dyestuffs. These dyestuffs are also used in the form of their salts. The disulphonylimides where R1 is org. mono or tetravalent gp. are also claimed. These materials are used as intermediates in the prepn. of pharmaceutical products, surfactants, dyestuffs, etc.
Patent DE-2031043-A1 (DE)
Title: Emulsion for testing for colour fastness
IPC: G01N33/36
Filed: 1970-04-23
Abstract: The emulsion is a mixture of e.g. trichloroethylene and an aqs. soln. of an alkyltrimethylammonium chloride and a tertiary amine where the groups attached to N are a fatty alkyl and two hydroxyethyl or polyoxyethylene groups. If a colour is discharged into this emulsion by the dyestuff, the dyed cloth will ru n. This procedure is a very rapid convenient test.
Patent DE-2049582-A1 (DE)
Title: Malt extracts - prepd from wheat grain
IPC: C12C1/18
Filed: 1970-10-09
Abstract: Malt extracts are obtained from wheat grain by saccharification. The wheat grain is moist germinated crushed and uncooked. The extraction occurs by enzyme action inaqueous solution. The liquid circulates through a number of zones where its temp. and density varies.
Patent DE-2053978-A1 (DE)
Title: Tris-salt of theophylline-7-acetic acid - useful as anti-fatigue and anti-exhaustion agent
IPC: C07D473/08
Filed: 1970-10-20
Abstract: Title salt of formula (I):- which is prepd. by reacting theophylline-7-acetic acid with (HOCH2)3CNH2 opt. in a solvent or diluent (pref. H2O and/or an alcohol such as MeOH or EtOH) and may be pptd. using a ketone, has an excellent effect in fatigue and exhaustion resulting from physical or metal effort (including rheumatic psychogenic pains), but does not have the undesirable side-effects of conventional stimulants. Its activity is even greater when it is administered in combination with caffeine.
Patent DE-2055211-A1 (DE)
Title: Polyamides of 1,4-benzoquinone tetracarboxylic acids - - prepd by polycondensation with diamino cpds
IPC: C08G73/10
Filed: 1970-11-10
Abstract: Polyimides with recurring units of formula: (R is a divalent aliphatic or aromatic gp.). Films, foils, fibres and coatings with strong intrinsic colour. Polymers have high heat-stability, resist attack by chemical reagents and radiation. Give stable solns. By polycondensation of 1,4-benzoquinone tetracarboxylic anhydride or 1,4-benzohydroquinone tetracarboxylic acid anhydride with diamino cpds. in soln. or bulk at room temp. to 350 degrees C. The polyimides may be converted to soluble form by reduction and worked into fibres, films or coatings by re-oxidation.
Patent DE-2100126-A1 (DE)
Title: Making a seamless plastic surface which is - embossed multicoloured textured and patt
IPC: B44C1/20
Filed: 1971-01-04
Abstract: The method includes applying a liquid plastic to the surface, positioning a template of a given pattern over the liquid plastic, distributing colour particles onto the exposed liquid plastic within the confines of the template, removing the template, and allowing the coated surface to dry.