baber/WOPTO huggingface dataset:
Patent MX-PA05004165-A (MX)
Title: Proximity detection employed in connection with rights management system or the like.
Inventor: TROY BATTERBERRY
IPC: G06Q30/00
Filed: 2005-04-19
Abstract: A sink sends a registration request to a source and the source validates same, and the source sends a registration response including a secret to the sink. The source then sends a proximity message including a nonce to the sink and concurrently notes a start time. The sink employs the secret and the nonce to generate a proximity value and sends same to the sources. The source receives the proximity value and concurrently notes an end time, verifies the proximity value based on the secret and the nonce, calculates from the noted start and end times an elapsed time, compares the elapsed time to a predetermined threshold value, decides from the comparison whether the sink satisfies the proximity requirement, and registers the sink as being able to access content from such source if the sink satisfies the proximity requirement.
Patent MX-PA05005412-A (MX)
Title: Clear, stable, dry-and-non-sticky antiperspirant having a select group of polar silicone emollients.
Inventor: KADLEC DONALD ANTHONY
IPC: A61K8/34
Filed: 2003-11-21
Abstract: A clear, stable, dry-and-non-sticky feeling antiperspirant having an antiperspirant active, a solvent, and a polar silicone emollient. The antiperspirant active is solubilized in the solvent. The polar silicone emollient has an OH group or polyether or mixture thereof. The polyether has an average length of 6 or less of ethylene oxide, propylene oxide or butylenes oxide groups or mixtures thereof. The polar silicone emollient has a chain of dimethyl siloxane groups ranging in an average total length of 8 to 40 silicone atoms. The polar silicone emollient has a linker which is a hydrocarbon chain of 1 to 8 carbons in average length. The polar silicone emollient represents from about 1 % to about 95 %, more specifically from about 5 % to about 70 %, even more specifically from about 10 % to about 40 % by weight of the antiperspirant. The antiperspirant may be contained in a pressurized or non-pressurized container.
Patent MX-PA05005580-A (MX)
Title: Isoindoline derivative.
Inventor: TAMURA TAKASHI
IPC: C07D405/14
Filed: 2003-11-25
Abstract: A novel isoindoline compound represented by the formula (I). (I) The compound has sedative activity. The compound leads mammals to sedation and is hence useful as a narcotic drug.
Patent MX-PA05005753-A (MX)
Title: Absorbent article having a color-pigmented and printed backsheet.
Inventor: RADHAKRISHNAN JANARDANAN NAIR
IPC: A61F13/15
Filed: 2003-12-19
Abstract: The present invention relates to disposable absorbent articles such as diapers and adult incontinence products, which collect and retain urine and fecal material deposited thereon by the wearer. The disposable absorbent articles of the present invention comprise a color-pigmented backsheet, which further comprises visually discernible ornamental designs printed thereon.
Patent MX-PA05007301-A (MX)
Title: Controllable rf broadband amplifier with a constant input impedance.
Inventor: ROTH SABINE
IPC: H03G1/00
Filed: 2003-12-05
Abstract: A variable-gain RF amplifier arrangement whose input impedance is essentially independent of the selected gain is proposed, which has a large number of selectable elementary amplifiers, with an input signal being scaled and the input impedance being set to be the same by means of switchable current limiting elements upstream of the elementary amplifiers, which are associated with the elementary amplifiers. The circuit also has a low noise level, which is largely independent of the selected gain, and good linearity. A broadcast radio receiver as well as a receiver for receiving data signals using an amplifier according to the invention are also proposed.
Patent MX-PA05007683-A (MX)
Title: Dispersion of taste masked crystals or granules of active substances, chewable soft capsules filled with said dispersion, and process for preparing same.
Inventor: MARIE MADELEINE BOHN
IPC: A61K9/48
Filed: 2004-01-21
Abstract: The present invention concerns a dispersion of crystals or granules of active substance in a lipophilic vehicle, said crystals or granules being coated by a coating for taste masking purposes. The invention also it concerns unit dosage forms and preferentially chewable or fast dissolving soft gelatin capsules filled with said dispersion as well as process for manufacturing same.
Patent MX-PA05008187-A (MX)
Title: Compositions of polyol granules and processes of manufacture.
Inventor: DEIS RONALD C
IPC: A23L27/30
Filed: 2004-01-29
Abstract: The present invention includes methods for preparing polyol products. The present invention also includes compositions comprising polyol products for use in pharmaceuticals, nutraceuticals, foods, such as frozen dairy and bakery items, and confections.
Patent MX-PA05009077-A (MX)
Title: Water heater having a low nox burner integrated with fvir platform.
Inventor: BOROS JOZEF
IPC: F24H1/18
Filed: 2005-08-25
Abstract: Various embodiments of fuel-fired low NOx water heaters are provided with burners having built-in venturi inlet sections for receiving fuel from a source thereof and combustion air from outside of the water heater. The burners are integrated in various manners with flammable vapor ignition resistance (FVIR) platforms to thereby reduce the tooling costs necessary to provide the water heaters with both lowered NOx emissions and flammable vapor ignition resistance.
Patent MX-PA05009284-A (MX)
Title: Improvements in and relating to drive mechanisms suitable for use in drug delivery devices.
Inventor: ROBERT PERKINS
IPC: A61M5/315
Filed: 2004-03-03
Abstract: The invention relates to a drive mechanism for use in a drug delivery device comprising: a housing (2); a dose dial sleeve (40) having a helical thread of a first lead; and a two-part piston rod (14). The said two-part piston rod (14) comprises an outer part (18) having a helical thread of a second lead and an inner part (16) having a helical thread of a third lead, whereby the first lead of the thread of the dose dial sleeve (40) is equal to the sum of the second lead of the thread of the outer part (18) of the piston rod (14) and the third lead of the thread of the inner part (16) of the piston rod (14).
Patent MX-PA05009938-A (MX)
Title: Compositions useful to prevent in-grown hair arising from shaving.
Inventor: ANTHONY WILLIAM JOHNSON
IPC: A61K8/41
Filed: 2004-03-12
Abstract: A method and composition is provided for managing in-grown hair which involves applying to those areas malonic acid or a salt thereof in a carrier. The method and composition allows for comfortable shaving of skin by minimizing the problem of in-grown hair.
Patent MX-PA05011125-A (MX)
Title: Preventive/remedy for retinal nerve diseases containing alkyl ether derivatives or salts thereof.
Inventor: SAITOH AKIHITO
IPC: C07D409/12
Filed: 2004-04-15
Abstract: An alkyl ether derivative represented by the following general formula [1] or its salt: wherein R1 and R2 represent each a substituent such as hydrogen, halogeno or alkyl; R3 represents alkylamino, amino or hydroxyl; the ring A represents a 5- or 6-membered aromatic heterocycle or a benzene ring; m and n are each an integer of from 1 to 6; and p is an integer of from 1 to 3; shows an effect of protecting retinal nerve cells and, therefore, is useful as a preventive and/or a remedy for retinal nerve diseases such as glaucoma, diabetic retinopathy, retinal artery obstruction, retinal venous obstruction, macular degeneration and retinopathy of prematurity.
Patent MX-PA05011454-A (MX)
Title: Cannabinoid receptor ligands and uses thereof.
Inventor: ROBERT LEE DOW
IPC: C07D471/02
Filed: 2004-04-13
Abstract: Compounds of Formula (I) and (II) that act as cannabinoid receptor ligands and their uses in the treatment of diseases linked to the mediation of the cannabinoid receptors in animals are described herein.
Patent MX-PA05012385-A (MX)
Title: Disposable pull-on garment.
Inventor: FUJIMOTO KENJI
IPC: A61F13/15
Filed: 2004-05-27
Abstract: A disposable pull-on garment is disclosed. The disposable pull-on garment has a waist opening and leg openings. The pull-on garment comprises an absorbent main body, a ring-like elastic belt and an outer cover layer. The absorbent main body comprises a liquid pervious topsheet, a liquid impervious backsheet and an absorbent core disposed therebetween. The absobent main body has a longitudinal centerline, longitudinal side edges, transverse end edges, a front waist region, a back waist region and a crotch region. The front waist region and the back waist region are not joined directly. The ring-like elastic belt comprises a front belt layer and a back belt layer. The ring-like elastic belt is joined to the absorbent main body at the front waist region and the back waist region to form one waist opening and two leg openings. The ring-like elastic belt is not disposed in the crotch region of the absorbent main body. The outer cover layer comprises a separate material from the front belt layer and the back belt layer. The outer cover layer has longitudinal side portions and transverse end portions. The outer cover layer covers the absorbent main body in the crotch region and extends into the front waist region and the back waist region to be joined with the ring-like elastic belt. The longitudinal side portion of the outer cover layer is provided with a leg elastic material to form an elastic leg cuff.
Patent MX-PA05013343-A (MX)
Title: Bulk transmission of messages using a single http request.
Inventor: BALLINGER KEITH W
IPC: G06F7/04
Filed: 2005-12-08
Abstract: Example embodiments provide for keeping an HTTP reply flow for a communication open such that portions of an overall response corresponding t o a single request may be sent across the HTTP reply flow. As the various portions of t he overall response become available at a corresponding service endpoint, the service appropriately encapsulates the messages and sends them to the requesting endpoint. The recipient or requesting endpoint of the response is then capable of reading the available portions of the response and appropriately decodes the embedded portions and is free to process these as appropriate. Accordingly, because only one reque st is made for several portions of a response valuable system resource are reserved for only requiring one authentication and/or validation of a requesting endpoint.</SD OAB>.
Patent MX-PA05013790-A (MX)
Title: Inhibition of the asexual reproduction of fungi by eugenol and/or the derivatives thereof.
Inventor: GERKE THOMAS
IPC: A01N31/16
Filed: 2004-06-11
Abstract: The invention relates to the use or eugenol and/or the derivatives thereof for inhibiting the asexual reproduction of fungi. The invention also relates to filter media, building materials, auxiliary building materials, textiles, furs, paper, skins or leather containing eugenol or the derivatives thereof, but also washing agents, cleaning agents, rinsing agents, handwashing agents, agents for handwashing dishes, dishwasher agents, and agents for finishing building materials, auxiliary building materials, textiles, furs, paper, skins or leather.
Patent MX-PA06000930-A (MX)
Title: Regulation of mammalian keratinous tissue using n-acyl amino acid compositons.
Inventor: ROBINSON LARRY RICHARD
IPC: A61K8/64
Filed: 2004-07-15
Abstract: Skin care compositions containing N-acyl amino acid, particularly N-acyl derivatives of Phenylalanine or Tyrosine, their isomers, or their salts; at least one other skin care active selected from sugar amines, vitamin B3, retinoids, peptides, dialkanoyl hydroxyproline, hexamidine, salicylic acid, and phytosterol; and a dermatologically acceptable carrier for the N-acyl amino acid and the skin care active. The invention further relates to methods for regulating the condition of mammalian keratinous tissue wherein the methods each comprise the step of topically applying to the keratinous tissue of a mammal needing such treatment, a safe and effective amount of the skin care composition of the invention.
Patent MX-PA06002065-A (MX)
Title: Bicyclo`3.1.1!heptane substituted benzimidazolone and quinazolinone derivatives as agonists on human orl1 receptors.
Inventor: TUINSTRA TINKA
IPC: A61K31/4523
Filed: 2004-10-01
Abstract: The invention relates to a group of hydronopol substituted benzimidazolone and quinazolinone derivatives which are agonists on human ORL1 (nociceptin) receptors. The invention also relates to the preparation of these compounds, to pharmaceutical compositions containing a pharmacologically active amount of at least one of these novel benzimidazolone and quinazolinone derivatives as an active ingredient, as well as to the use of these pharmaceutical compositions for the treatment of disorders in which ORL1 receptors are involved. The invention relates to compounds of the general formula (1) wherein the symbols have the meanings as given in the description.
Patent MX-PA06002112-A (MX)
Title: Compositions of a cyclooxygenase-2 selective inhibitor and a serotonin modulating agent for the treatment of neoplasia.
Inventor: MASFERRER JAIME L
IPC: A61K31/50
Filed: 2004-08-20
Abstract: The present invention provides compositions and methods for the treatment of neoplasia in a subject. More particularly, the invention provides a combination therapy for the treatment of a neoplasia comprising the administration to a subject of a serotonin modulating agent in combination with a cyclooxygenase-2 selective inhibitor.
Patent MX-PA06006747-A (MX)
Title: Processing of peptides and proteins.
Inventor: RBY INGA SIG NIELSEN N
IPC: C12P21/02
Filed: 2004-12-20
Abstract: The invention provides novel methionine aminopeptidase enzymes and their use.
Patent MX-PA06006923-A (MX)
Title: Oleaginous pharmaceutical and cosmetic foam.
Inventor: BESONOV ALEX
IPC: A61L9/04
Filed: 2004-12-16
Abstract: The invention relates to stable oleaginous cosmetic or therapeutic foam compositions containing certain active agents, having unique therapeutic properties and methods of treatment using such compositions. The foamable composition includes at least one solvent selected from the group consisting of: a hydrophobic solvent, a silicone oil, an emollient, a co-solvent, and mixtures thereof, wherein the solvent is present at a concentration of about 70% to about 96.5% by weight of the total composition, at least a non-ionic surface-active agent at a concentration of about 0.1 % to less than about 10% by weight of the total composition; at least one gelling agent at a concentration of about 0.1% to about 5% by weight of the total composition; a therapeutically effective amount of at least one active agent; and at least one liquefied or compressed gas propellant, at a concentration of about 3% to about 25% by weight of the total composition.
Patent MX-PA06010223-A (MX)
Title: High surface area ceramic coated fibers.
Inventor: SHANG JIAN-KU
IPC: C03C25/10
Filed: 2005-03-10
Abstract: A method of manufacturing a ceramic coated fiber comprises heat treating an activated carbon coated fiber containing a ceramic precursor in a liquid form, to form a ceramic coated fiber.
Patent MX-PA06011815-A (MX)
Title: Proteases and uses thereof.
Inventor: LAVALLIE EDWARD R
IPC: A61K38/48
Filed: 2005-04-15
Abstract: The present invention features methods of using ADAMTS-8 proteins or their functional derivatives to cleave aggrecan or other proteoglycan molecules. The present invention also features methods for identifying ADAMTS-8 modulators that are capable of inhibiting or enhancing ADAMTS-8 proteolytic activities. In addition, the present invention features pharmaceutical compositions comprising ADAMTS-8 proteins or their derivatives or modulators. These pharmaceutical compositions can be used to treat diseases that are characterized by deficiencies or abnormalities in proteoglycan cleavage or metabolism.
Patent MX-PA06011909-A (MX)
Title: Data insertion techniques for expanding information capacity of existing communication systems.
Inventor: CHUNG WONZOO
IPC: H04N7/00
Filed: 2005-04-15
Abstract: Methods and apparatus are described for inserting data in a communications system, such as in an existing analog communications system, using quadrature amplitude modulation (QAM) with in-phase analog signals and quadrature data signals. These methods can minimize the distortion to the analog signals while maximizing the data signal strength. The data signals may be sub-modulated on a subcarrier frequency such that the data signals do not interfere with the analog signal detectors in the analog signal receivers, and may be processed with an abatement filter to mitigate the distortion due to Nyquist mismatch in the receiver. The injection phase of data signals may be determined by adaptive algorithms, using a monitor analog signal receiver.
Patent MX-PA06013926-A (MX)
Title: Diameter measuring device.
Inventor: METCALF STEPHEN
IPC: B65D83/00
Filed: 2005-06-01
Abstract: Method of detecting a potentially void inhaler can valve (30), which valve (30) is attached to a can (10) by a ferrule crimp (80), comprising the steps: placing the can (10) in a can jig (220) that is arranged to retain the can (10) at a predetermined measurement height with respect to a diameter measuring means (230),measuring the diameter of the ferrule crimp (80) at the predetermined height, and comparing the measured crimp diameter with a predefined interval of acceptance, and if the measured diameter is outside a predefined interval classifying the inhaler can valve (30) as potentially void. There is also provided a crimp diameter measuring device (200) comprising: a base (210), a diameter measuring means (230) supported by the base (210), and a can jig (220) supported by the base (210), the can jig (220) being arranged to retain a can (10) placed therein at a predetermined measurement height with respect to a diameter measuring means (230).
Patent MX-PA06014638-A (MX)
Title: Gateway for a local networking system.
Inventor: ADAMSON ANTHONY
IPC: H04L12/00
Filed: 2005-06-07
Abstract: A gateway (150) is connected to local networks (40, 45) of target devices (20-23). The gateway (150) has an event handling function (162) which stores events (173) which may occur and, for each event, commands for controlling the target devices (20-23). A remote server (50) supports an application (130) which configures the event handling function (162) for control of the target devices as well as directly communicating with target devices (20--23). The gateway (150) continues to allow operation of target devices (20-23) if communication with the remote server (50) is interrupted. The invention can be used as an enhancement of the OSGi Virtual Gateway Model, with an OSGi Java application (130) being supported by a Java Virtual Machine on the server (50). The event handling function (162) can be achieved by executing an application written in the native code of the gateway (150).
Patent MY-100461-A (MY)
Title: Oral hygience compositions.
Inventor: MARIA CORAZON GAFFAR
IPC: A61K8/34
Filed: 1987-09-04
Abstract: AN ORAL HYGIENE COMPOSITION CONTAINING AN EFFECTIVE CONCENTRATION OF A PHARMACEUTICALLY ACCEPTABLE FLUORIDE SALT,A PHARMACEUTICALLY ACCEPTABLE ZINC SALT, A SPECIFIC BUFFERING AGENT,A SUITABLE VEHICLE AND HAVING A PH OF FROM ABOUT 3.5 TO 6.0.
Patent MY-103044-A (MY)
Title: Constructional improvements in vane type rotary compressor
Inventor: MASAHIKO HARA
IPC: F04C29/00
Filed: 1988-01-18
Abstract: A VALVE ARRANGEMENT INCLUDING A VARIABLE ORIFICE WHICH LIMITS THE MAXIMUM PRESSURE WHICH CAN BE SUPPLIED TO VANE CHAMBERS TO BIAS THE VANES OUT AGAINST THE WALL OF THE CAM RING,IS DISPOSED BETWEEN THE SOURCE OF PRESSURIZED FLUID AND THE CHAMBERS. (FIG. 1)
Patent MY-102208-A (MY)
Title: Method of detecting a position of a robot
Inventor: TAKASHI MIYATA
IPC: B66C13/22
Filed: 1988-05-11
Abstract: THERE IS DISCLOSED A POSITION DETECTION METHOD OF A ROBOT WHICH PROVIDES TWO INCREMENTAL POSITION TRANSDUCERS MOUNTED TO A ROBOT AXIS IN INTERLOCK RELATIONSHIP WITH EACH OTHER AND ROTATABLY TO PRODUCE PLUSE SIGNALS HAVING THE NUMBER DIFFERENT FROM EACH OTHER IN RESPONS TO A MOVING DISTANCE OF THE MOVING ROBOT AXIS AND DETECTS A DIFFERENT BETWEEN THE NUMBERS OF PULSES PRODUCED FROM THE POSITION TRANSDUCERS TO DETECT THE POSITION OF THE ROBOT. FURTHER, A DIFFERENCE (P2I) OF THE PLUSE NUMBER BETWEEN REFERENCE PLUSE PRODUCED FROM THE TWO POSITION TRANSDUCERS AT ANY POSITION OF THE MOVING ROBOT AXIS IS CALCULATED AND THE PULSE NUMBER (I) OF A NEX REFERENCE PULSE FROM A REFERENCE POSITION IS THEN CALCULATED ON THE BASIS OF I=(P1-P2I)/(P1-P2) WHERE P, AND P2 ARE THE NUMBERS OF PULSES PRODUCED DURING ONE ROTATION OF THE POSITION TRANSDUCERS, RESPECTIVELY, SO THAT P1 x I IS CALCULATED TO DETECT A POSITION OF ROBOT AXIS. ACCORDINGLY, THE MOVING DISTANCE NECESSARY FOR DETECTION OF THE REFERENCE POINT CAN BE GREATLY SHORTENED TO LESS THAN TWO ROTATIONS OF THE POSITION TRANSDUCER AND THE TIME REQUIRED FOR DETECTION OF THE REFERENCE POINT CAN BE ALSO GREATLY REDUCED.(FIG 1)
Patent MY-103663-A (MY)
Title: Coaxial cigarette.
Inventor: HORST BOROWSKI
IPC: A24D1/00
Filed: 1988-12-21
Abstract: A COAXIAL CIGARETTE COMPRISING AN INNER CORE OF A MATERIAL, WHICH GLOWS SUBSTANTIALLY RESIDUE-FREE, IN PARTICULAR TOBACCO MATERIAL, A WRAPPER FOR THE INNER CORE, AN OUTER JACKET WHICH CONSISTS OF A TOBACCO AND/OR NON-TOBACCO MATERIAL AND COAXIALLY SURROUNDS THE INNER CORE AND ITS WRAPPER, AND A WRAPPER FOR THE OUTER JACKET, HAS A VENTILATED COAXIAL FILTER WITH A FILTER CORE, THE INTERNAL DIAMETER OF WHICH CORRESPONDS SUBSTANTIALLY TO THE DIAMETER OF THE INNER CORE, AND WITH A FILTER JACKET; THE FILTER CORE HAS AN AIR-IMPERMEABLE WRAPPER; THE FILTER JACKET HAS AN AIR-PERMEABLE WRAPPER; THE WRAPPER OF THE INNER CORE AND THE WRAPPER OF THE OUTER JACKET ARE PROVIDED WITH GLOW AGENTS; AND THE DRAW RESISTANCE OF THE INNER CORE IS LOWER THAN THE DRAW RESISTANCE OF THE OUTER JACKET. (FIG.)
Patent MY-103506-A (MY)
Title: Stabilized azeotrope or azeotrope-like composition.
Inventor: ROBERT ALEXANDER GORSKI
IPC: H05K3/26
Filed: 1989-01-30
Abstract: A STABILIZED AZEOTROPE OR AZEOTROPE-LIKE COMPOSITION IS DISCLOSED WITH 1, 1, 2-TRICHLORO-1, 2, 2-TRIFLUOROETHANE AND TRANS-1, 2-DICHLOROETHYLENE CONTAINING EFFECTIVE STABILIZING AMOUNTS OF LOWER ALKOXYPHENOL, 1, 2-BUTYLENE OXIDE, NITROMETHANE AND/OR 1, 2-PROPYLENE OXIDE.
Patent MY-106478-A (MY)
Title: Color cathode ray tube having improved spring type contactor.
Inventor: SEONG-HUN JI
IPC: H01J29/92
Filed: 1990-09-05
Abstract: A COLOR CATHODE RAY TUBE HAVING AN IMPROVED SPRING TYPE CONTACTOR IS DISCLOSED. THE SPRING TYPE CONTACTOR (36) EFFECTS ELECTRICAL CONNECTION BETWEEN A FRAME (31) AND A CONDUCTIVE COATING (13) DEPOSITED ON THE INNER SURFACE OF THE FUNNEL (10), AND COMPRISES AN (OMEGA) SHAPED FITTING PORTION (363) FOR BEING INSERTED INTO HOLES (321 AND 311) RESPECTIVELY PERFORATED ON THE SHIELD (32) AND THE FRAME (31) TO BE LOCKED THEREIN, A PAIR OF LEGS (365 AND 365) ABUTTING THE EDGE OF THE HOLE (321) OF THE SHIELD (32), AND A ''C'' SHAPED CONTACT PORTION (361) EXTENDED FROM ONE OF THE LEGS (365 AND 365) TO CONTACT WITH THE CONDUCTIVE COATING (13) ON THE INNER SURFACE OF THE FUNNEL (10). ACCORDING TO THE PRESENT INVENTION, THE INNER MAGNETIC SHIELD (32) IS CONVENIENTLY AFFIXED TO THE FRAME (31), AND THE ELECTRICAL RESISTANCE BETWEEN THE FRAME (31) AND THE CONDUCTIVE COATING (31) IS DIMINISHED SO REMARKABLY THAT THE RESIDUAL ELECTRONS IN THE CATHODOLUMINESCENT SCREEN (21) AND THE SHADOW MASK (30) CAN EFFECTIVELY BY-PASS TO THE CONDUCTIVE COATING (13).(FIG 5)
Patent MY-105324-A (MY)
Title: Wet-etch process and compositon
Inventor: ALLYSON JEANNE BEUHLER
IPC: G03F7/40
Filed: 1991-03-01
Abstract: A WET-ETCH COMPOSITION FOR POLYAMIC ACIDS AND PARTIALLY CURED POLYAMIC ACIDS COMPRISING AN AQUEOUS SOLUTION HAVING A MAJOR PORTION OF WATER, A SUBSTITUTED HYDROCARBON SOLVENT AND A NON-IONIC BASE THAT IS STRONG ENOUGH TO DEPROTONATE THE POLYAMIC ACID OR A PARTIALLY CURED POLYAMIC ACID IN A WEIGHT RATIO OF 0.1-49:49-0.1, WITH THE PROVISO THAT THE COMPOSITION CONTAINS LESS THAN 1.0 PERCENT IONIC BASE. THE PRESENT INVENTION FURTHER PROVIDES A PROCESS FOR WET-ETCHING POLYAMIC ACIDS OR PARTIALLY CURED POLYAMIC ACIDS.