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Patent Searching and Data


Matches 551 - 600 out of 2,971

Document Document Title
WO/1999/016533A1
An electret article can be made by quenching a molten blend containing a polymer and a performance-enhancing additive. The resulting low crystallinity material can be annealed and charged to produce a material for making electret filters...  
WO/1999/010590A1
Wool with a non-felting finish is disclosed, as well as a process for producing the same by (a) prior treatment with a low pressure plasma; and (b) subsequent treatment with aqueous dispersions of self-dispersing isocyanates. Also disclo...  
WO/1999/010589A1
A wrinkle-free/wrinkle-resistant cellulosic fiber-containing fabric is obtained by a process which comprises treating a cellulosic fiber-containing fabric with aqueous formaldehyde and a catalyst capable of catalyzing the cross-linking r...  
WO/1999/005358A1
An industrial fabric comprises synthetic yarns or fibres which have been subjected to plasma treatment. If fibres are used, they may be treated as fibres, when made up into yarns or when formed into a woven or nonwoven layer. One or both...  
WO/1999/004068A1
Compressed wool fiber mass, e.g. wool bales (26) containing raw wool fleeces, is subjected to microwave radiation (20) (typically with power levels in the range of 3 kW to 100 kW). The controlled heating process typically achieves temper...  
WO/1999/004083A1
Process for reducing and/or avoiding the shrinking of articles made with keratinic fibers such as wool and animal hair while also improving the whiteness and dyeing characteristics and reducing the tendency to felting. The method compris...  
WO/1998/058117A1
A method of coating a surface with a polymer layer, which method comprises exposing said surface to a plasma comprising a monomeric unsaturated organic compound which comprises a chain of carbon atoms, which are optionally substituted by...  
WO/1998/056836A2
The invention relates to electrets produced on the basis of cycloolefin copolymers (COC) and characterized by long-term stability of the charges applied thereto, even at high temperatures and high relative air humidity. Cycloolefin copol...  
WO/1998/047657A1
A laser system for processing surfaces of a variety of materials. The amount of laser treatment received by a surface held by a support stage (140) and the geometry are controlled by an impact frequency matrix that is programmed into a c...  
WO/1998/045524A1
A method for enhancing the absorbency, hand-feel, or both of an article made from fibers having a spin finish thereon, where the spin finish decreases the hand-feel desirability and decreases the absorbency of the article. The method inv...  
WO/1998/044172A1
The invention concerns a method for producing by electrochemical reduction a carbon-containing material with its surface modified by organic groups, in particular functionalised, comprising contacting the carbon-containing material with ...  
WO/1998/040540A1
The invention concerns a method for electrochemically producing carbon material with its surface modified by functionalised groups, characterised in that it consists in contacting said carbon material with a solution in a protic or aprot...  
WO/1998/031852A1
A melt article, e.g. a fibre or film, or a fusible acrylonitrile polymer can be cross-linked to render it infusible. The thusly cross-linked article can be oxidised and subsequently carbonised or graphitised in similar manner to articles...  
WO/1998/018989A1
The degree of primary fibrillation of a fibrillated lyocell fabric is reduced by tumbling the fabric, preferably in garment form, in a drying gas in a tumble dryer. The fabric may be initially subjected to wet processing such that it dev...  
WO/1998/013132A1
In order to enlarge the surface of particles which absorb liquids at least to a limited extent, the particles are exposed to a liquid or to a humid atmosphere containing this liquid at least until said liquid has penetrated into the area...  
WO/1998/004767A1
A sterilizable nonwoven material which is subjected to electreting, and more particularly electrostatic electreting is provided. The nonwoven materials may include laminate nonwovens wherein one or more layers are subjected to electretin...  
WO/1997/047801A1
A coated porous substrate composed of a hydrophobic polymer which is substantially uniformly coated with a hydrophilic polymeric material. The substrate may be a sheet-like material, examples of which are foams, fibers, and fibrous webs....  
WO/1997/043469A1
The invention relates to a process for producing a mower monofilament which is extruded and drawn from a plastic, whereafter its cross-section is altered, reduced and shaped by the removal of plastic material by laser beams or mechanical...  
WO/1997/041293A1
The invention pertains to a process for antifelting finishing of animal fibers that are inclined to felt, especially wool, wherein the fibers are subjected to a low-temperature plasma treatment.  
WO/1997/039838A1
The present invention relates to several novel compositions and methods employing infrared radiation, microwave radiation or high voltage polymerization for modifying the surfaces of materials to impart desired characteristics thereto. M...  
WO/1997/036028A1
The tendency to fibrillate of cellulosic fibres spun from tertiary amine oxide solutions and fibrous products produced from these fibres is reduced by a treatment with heat and a solution containing a tertiary amine oxide and optionally ...  
WO/1997/026394A1
Process for scouring wool comprising the steps of: (a) treating the wool so as to cause at least partial liquefaction of grease contaminants present in the wool; (b) adding to the wool a material capable of absorbing liquefied grease con...  
WO/1997/023246A2
A breathing mask fabric is provided which has between 50 and 95 weight percent of a through-air bonded, electret treated, nonwoven microfiber first web of fibers where the fibers have an average diameter of between about 10 and 25 micron...  
WO/1997/021364A2
A nonwoven web having improved particulate barrier properties is provided. A surface treatment having a breakdown voltage no greater than 13 KV direct current is present on the nonwoven web. The particulate barrier properties are improve...  
WO/1997/020982A1
A process for improving the mechanical properties, particularly the flexural rigidity, of aramid fibers by directly depositing a diamond-like-carbon coating onto the surface of the fibers. Diamond-like-carbon (DLC) coated aramid fibers h...  
WO/1997/020981A1
A process of coating a non-conductive fiber with diamond-like carbon, including passing a non-conductive fiber between a pair of parallel metal grids within a reaction chamber, introducing a hydrocarbon gas into the reaction chamber, for...  
WO/1997/016279A1
A laser (11) scribes graphics on a material (21). Movement of the laser beam (12) in contact with the surface (22) of the material (21) causes a graphic (23) to be scribed on the surface (22). The movements and timing of the mirrors (13,...  
WO/1997/013798A1
The invention concerns a polyurethane elastomer containing structural units of type (a), in which: the group -O-R1-O- is a macrodiol group with a molecular weight of approximately 500 to 10000, R2 is a bivalent aliphatic, cycloaliphatic ...  
WO/1997/011989A1
Methods of sulfonating a polymer are provided. One method of sulfonating a polymer includes exposing sulfur dioxide and oxygen to free radical producing energy and contacting the polymer with the product of preceding step. Desirably, the...  
WO/1997/011834A1
A method of preventing localized arcing to ground during treatment of a sheet material in a corona discharge field generated by a corona discharge apparatus having at least two electrodes, which method involves passing the sheet material...  
WO/1997/004155A1
A plasma sterilizable fabric which is subjected to charging, for example electrostatic charging, is provided. Plasma sterilizable fabrics may include nonwovens and laminate nonwovens. The plasma sterilizable fabrics may also be treated w...  
WO/1997/000994A1
Proteins are applied to a polymeric article by contacting the polymeric article with a protein and exposing the contacted polymeric article to a frequency with a sufficient power dissipation for a sufficient period of time. A frequency r...  
WO/1997/000159A1
An ultrasonic cutting device with an ultrasonic generator having a given natural frequency and being coupled to a cutting tool. The cutting tool is a revolving disc (5) and the ultrasonic generator (10, 11) is coupled to a central portio...  
WO/1996/039821A1
Reagents and methods are disclosed for modifying a fabric substrate in order to inactivate viruses, and particularly lipid-enveloped viruses, upon contact. Such substrates can be modified by photochemically immobilizing hydrophilic polym...  
WO/1996/037292A1
An adsorbent filter for removing caffeine from liquids. The filter is composed of a liquid permeable matrix of fibrous material having individual exposed surfaces; and a distribution of adsorbent clay minerals attached to individual expo...  
WO/1996/037276A1
A web, formed from dielectric fibers and non-dielectric fibers, which has been subjected to corona discharge to improve the particulate filtration properties of the web is provided. The dielectric and non-dielectric fibers may be intermi...  
WO/1996/037653A1
The invention concerns shaped bodies, such as fibres, threads, yarns, woven fabrics, non-woven fabrics, knitted fabrics, mats, films, foils, membranes, paper and the like, which are coated, impregnated or covered with a cellulosic compos...  
WO/1996/036758A2
The present invention relates to articles comprising a porous web that has been treated with a curable, shear thinnable, thixotropic material and with one or more modifiers. The modifiers are controllably and selectively positioned withi...  
WO/1996/036757A2
The present invention includes novel barrier webs that have certain desirable physical qualities such as water resistance, increased durability, improved barrier qualities and the like. The present invention further comprises a barrier w...  
WO/1996/036761A2
Products and methods for controlling the porosity and permeation of a web are provided using a curable thixotropic shear thinnable polymer composition that preferably encapsulates a plurality of fibers of the web and/or forms an internal...  
WO/1996/032529A1
A stabilized and/or modified polymer substrate is prepared by a solvent-free, thermally induced diffusion process. The process features the steps of electrostatically depositing an effective amount of stabilizer and/or modifier additive(...  
WO/1996/030436A1
The invention relates to a process for the manufacture of a creep resistant polyolefin shaped article wherein a highly oriented polyolefin shaped article is impregnated by vapor absorption with a volatile oxygen free halogenated derivati...  
WO/1996/028599A1
The invention concerns a method of treating a wide-fed textile fabric, in particular a strip of woven or knitted fabric, by direct irradiation of the fabric with ultrasonic radiation in a liquid, the fabric being fed past the planar-desi...  
WO/1996/028597A1
A nonwoven web laminate having improved particulate barrier properties is provided. Present on the nonwoven web laminate is an alcohol repellent material formed from a fluorinated urethane derivative. The particulate barrier properties a...  
WO/1996/027044A1
Hydro-entangled nonwoven material which, after the hydro-entanglement, is subjected to plasma or corona treatment with a view to increasing the wet strength of the material. It is believed that the surface of the fibres is modified by th...  
WO/1996/025771A1
A nonwoven fabric for an alkaline battery separator that can prevent the movement of active substances while it has a small weight per unit area and which has superior absorbency for electrolyte and liquid retaining properties under pres...  
WO/1996/024716A1
Economical, pollution-free treatment of textiles occurs in a low voltage electrochemical cell (30) that mercerizes (or scours), sours, and optionally bleaches with effluents and without the purchase of bulk caustic, neutralizing acids, o...  
WO/1996/020833A1
Disclosed is a nonwoven web laminate having improved particulate barrier properties, and particularly improved particulate barrier properties for particles in the size range of between 0.19 'mu'm and 0.5 'mu'm. The particulate barrier pr...  
WO/1996/019611A1
A method of producing wool or animal hair material with improved properties such as shrink-proofed (anti-felting tendency), increased whiteness, improved dyeability, increased softness and/or reduced pilling tendency, the method comprisi...  
WO/1996/018683A1
A glass yarn sizing composition consisting of a solution having a viscosity of at most 400 cP and including less than 5 wt % of a solvent and at least one ultraviolet radiation- or electron beam-polymerisable base system that includes at...  

Matches 551 - 600 out of 2,971