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7553440 |
Method and apparatus for electric treatment of substrates
Methods and apparatus for hydrodischarging and hydrocharging substrates and articles to produce enhanced ability to avoid attraction of contaminants or improved capability of removing contaminants...
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7276271 |
Polymer fiber tubular structure having kinking resistance
An apparatus for forming a tubular structure from a liquefied polymer, the apparatus comprising: (a) a dispenser for dispensing the liquefied polymer; (b) a precipitation electrode being at a first...
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7244385 |
Process for production of three-dimensional photonic crystal as well as probe used therefor
The present invention provides a practically effective three-dimensional photonic crystal, and a process for the production thereof as well as a probe used therefor wherein a three-dimensional...
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7135134 |
Method for forming microscopic polymer interconnections
Polymer fiber interconnects are produced between microscale features on substrate using only electrostatic forces. In one embodiment, electric field driven directed growth of fibers is achieved...
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6890475 |
Method and apparatus for manufacturing a thin-walled article
The invention relates to a method for manufacturing a thin-walled article, wherein a single- or multi-component, essentially polymer-based material ( 1 ), such as plastics, elastomers, and/or the...
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6846449 |
Method of producing an electrically charged film
A method of producing an electrically charged film includes the steps of forming a molten thermoplastic material into a web, electrically charging the web while the web is at a temperature...
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6838039 |
Film roll body and method of manufacturing film roll body
The present invention provides a film roll comprising an electrified portion at at least part in the transverse direction of a film that is wound into a roll, in which the difference between the...
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6797225 |
Process for producing polyester sheet and film
A process for producing a polyester sheet by dropping a molten polyester sheet extruded from an orifice-form nozzle on a cooling roll having the grooves of a large number of micro-cracks formed on...
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6667004 |
Method of forming a box or box element of plastic material
There is described a box or an insert for a box made up of elements, such as cover element ( 1 ) and a bottom element ( 2 ) both of which are made of molded plastics material and which are hinged...
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6649116 |
Process and apparatus for forming a thin-walled elastomeric article
A process for making thin-walled elastomeric articles. The process includes the steps of electrostatically spraying charged particles of an elastomeric composition into a chamber containing a rigid...
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6642341 |
Molded articles having improved flex modulus and impact strength and a process for the production thereof
Molded polyurethane articles having improved flex modulus and impact strength are produced by subjecting a polyurethane-forming reaction mixture which has been introduced into a mold to a static...
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6595819 |
Equipment for fabricating partitioning ribs of plasma display device
This invention provides equipment for fabricating partitioning ribs of a plasma display device. The equipment comprises a head, a driver, an X position sensor and a Y position sensor, a laser...
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6514324 |
High efficiency active electrostatic air filter and method of manufacture
A washable air filter for removing particles from the inlet air to a heating and/or air conditioning system formed of an assembly of a central polymeric pad containing actively charged charge...
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6416706 |
Molding apparatus and method using a robot to introduce and insert into a mold
Apparatus for molding articles from moldable material in a mold includes end of arm tooling for an articulated robot arm associated with the mold, where the end of arm tooling includes an insert...
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6398847 |
Method of removing contaminants from an aerosol using a new electret article
An electret is described that includes a surface modified polymeric article having surface fluorination produced by fluorinating the polymeric article.
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6287505 |
Self-tuning material and method for manufacturing the same
Self-tuning materials which can efficiently emit or receive radio waves in spite of being simple in their construction and small in their dimension, and are applied to patch antenna, wave directors...
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6279346 |
Method for reducing hot sticking in molding processes
The method of the present invention overcomes the hot-sticking problems between an inorganic non-metallic material (=insulator) to be molded and a forming die by maintaining an assembly comprising...
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6221301 |
Method of producing thermoplastic resin films and apparatus for producing the same
Method and apparatus for producing thermoplastic resin film which allows a biaxially oriented polyester film to be formed at a high speed of 400 m/min or more. In the method, a molten thermoplastic...
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6206672 |
Apparatus of fabricating 3 dimensional objects by means of electrophotography, ionography or a similar process
Freeform fabrication apparatus for rapid prototyping. In one embodiment, the apparatus includes ion-generating equipment for sequentially creating latent ion images of layers of an object to be...
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6136257 |
Apparatus and method for producing a three-dimensional object and for applying a layer of a powder material to a surface
An apparatus is described for producing a three-dimensional object from a powder material which includes powder particles and which is solidifiable by exposure to electromagnetic radiation. The...
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6106760 |
Electrostatic interfacing, underlining, and applique
A thermoplastic fabric for use as a support fabric in interfacing, underlining, and applique carries a persistent electrostatic charge that causes the fabrics in contact therewith to cling thereto...
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6042773 |
Process for producing aromatic polyester
A process for producing an aromatic polyester by esterifying a dicarboxylic acid mainly composed of an aromatic dicarboxylic acid and a glycol mainly composed of ethylene glycol in the presence of...
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5964926 |
Gas born particulate filter and method of making
Disclosed is an improved filter formed from a non-dielectric material which has been coated with a dielectric material and electret treated by, for example, DC corona discharge treatment. Also...
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5935303 |
Electrostatic filter
An electrostatic filter includes a fibrous component including a mixture of wool and synthetic fibers and a resinous component including a perfluoroalkyl acrylate copolymer resin and a...
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5800769 |
Method for forming an electrostatic fibrous filter web
There is provided a method for forming a nonwoven electret fiber filter with a nonwoven web of electret fibers needle-punched to an open scrim support. The scrim support material has individual...
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5766425 |
Method and apparatus for treating the surface of a web or film, and webs and films treated therewith
The surface of a web or film is modified to impart the material with improved properties including wettability, printability, adhesion and static reduction. Such surface modification is achieved...
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5733584 |
Apparatus for the manufacture of films
The invention concerns an apparatus for the manufacture of films, in particular thin or very thin films, with a rotating roller with which a plastically deformable film preferably supplied by a...
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5731011 |
Apparatus for forming a fibrous sheet
An apparatus for adjusting the path that a web formed by striking a contoured surface baffle will take as it descends to a collection surface, in which the baffle is mounted on a pivot plate which...
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5730923 |
Post-treatment of non-woven webs
A method for post-treating a precursor nonwoven web including consolidating the web laterally, thereby reducing the maximum pore size measure of the web and improving the filtration efficiency of...
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5667562 |
Spunbond vacuum cleaner webs
There is provided a vacuum cleaner filter medium which is a nonwoven spunbond web of conjugate spunbond fibers. The web has a Frazier permeability of at least 250 CFM, an NaCI efficiency of at...
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5601853 |
Electrically conductive ceramics and their use in fiber charging apparatus
A conductive ceramic composition is disclosed which consists essentially of alumina, chromia, and magnesia, and is suitable for use as target electrodes in electrostatic fiber charging...
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5573715 |
Method for treating an ophthalmic lens mold
An apparatus and method for causing the polymerized excess monomer to separate from a molded lens by increasing the surface energy of the flange area of one mold piece, causing the polymerized...
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5432454 |
Apparatus and method to control free charge on moving webs
The present invention is a method and apparatus for controlling free charge on a moving web. The method and apparatus includes two DC ionizers one of each polarity positioned near one surface of...
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5401446 |
Method and apparatus for the electrostatic charging of a web or film
Method and apparatus for electrostatically charging a web or film by subjecting the web or film to an electric field generated between a single bar or wire electrode and the curved surface of a...
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5397413 |
Apparatus and method for producing a web of thermoplastic filaments
A slot draw attenuator apparatus and method are provided for producing webs of spunbonded thermoplastic filaments having improved cover even at low basis weights. The filaments are introduced to a...
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5370831 |
Method of molding polymeric skins for trim products
A polymeric skin can be molded by heating a mold surface to a temperature sufficient to melt a casting material and controllably projecting particles of the casting material toward the heated mold...
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5118453 |
Process for production of a continuous plastic sheet by casting in the liquid state on a mobile support comprising juxtaposed glass plates
A process of production of a continuous plastic sheet (2) includes the forming of at least one layer cast in the liquid state of this plastic material, or a reaction mixture of reactive components,...
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5100593 |
Poly(arylene sulfide) sheet and production process thereof
A poly(arylene sulfide) sheet excellent in planarity and smoothness is formed of a poly(arylene sulfide) having a melt viscosity, η * of 1,000-25,000 poises as measured at 310° C. and a shear...
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5076976 |
Process for producing polyester film
A molten polyester sheet is solidified by cooling it on the surface of a mobile cooling medium on which a water film has been formed. The sheet is stretched at least 4.5-fold in overall stretching...
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4857244 |
Process of making a composite product, especially a vehicle tire
The present invention relates to a process for the preparation of a composite material wherein the element used to reinforce the composite material is subjected to an electrostatic field induced by...
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4810432 |
Method and apparatus for establishing a uniform charge on a substrate
A method and apparatus for establishing a uniform electrostatic charge of selected magnitude and polarity on a randomly charged web. The method and apparatus include first and second uniform...
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4743413 |
Method of manufacturing thermostable pieces made from composite materials and the pieces thus obtained
A roving laid flat of unitary metal, mineral or synthetic filaments is treated with a powder, whose grain size is equal to the diameter of the filaments, of a plastic material chosen either from...
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4724106 |
Process for forming organic film
A process for preparing an organic film comprising the steps of ejecting an organic material in a gaseous state from an injection nozzle into a vacuum region to form clusters due to adiabatic...
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4681712 |
Molding process for plastics
A molding process for producing a molded plastic product with a resin coating layer formed on its surface, which comprises electrostatically coating a powdery resin composition on the inner surface...
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4664856 |
Method of treating materials to improve their conductance for use in the manufacture of directionally aligned materials
A method is disclosed for treating discrete pieces of material, particularly pieces of lignocellulosic furnish, to ensure adequate conductance thereof for orientation in an electric field for...
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4608212 |
Method for the electrostatic treatment of monofilaments
Method for effecting the electrostatically induced thermal modification and disruptive surface deformation of liquid monofilamentous materials in a gaseous environment.
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RE32171 |
Method for the manufacture of an electret fibrous filter
A method for the manufacture of an electrically charged fibrous filter from a highly molecular non-polar fiber material wherein a web film of the fiber material is continuously fed and...
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4559188 |
Method for making a layer of reinforced polymeric material
A substantially flat layer of material and method for making the same are provided, the flat layer of material having opposed substantially parallel spaced apart flat surfaces and comprising...
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4552707 |
Synthetic vascular grafts, and methods of manufacturing such grafts
A synthetic vascular graft is made by electrostatically spinning an organic polymeric material or a precursor thereof and collecting the spun fibres on a rotating mandrel (13), the method...
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4517143 |
Method and apparatus for uniformly charging a moving web
Method and apparatus for establishing a uniform charge level on a randomly charged web having both positive and negative, bounded and/or free electrostatic charges. The method and apparatus include...
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