| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 264119000 | With reshaping or surface embossing of formed article | 19 |
| 20080251960 | Multiple calender process for forming non-fibrous high modulus ultra high molecular weight polyethylene tape - A multi-calender process for forming a high modulus, high strength component for use in ballistic-resistant articles. The process includes forming ultrahigh molecular weight polyethylene powder into a uniform sheet at a low pressure. Multiple calender units mold and draw the uniform sheet into a non-fibrous, monolithic, ultra high molecular weight polyethylene tape. The multi-calender process and subsequent draw stages stretch the non-fibrous UHMWPE tape to a total draw of at least 100 to 1 to produce a high modulus, high strength UHMWPE component with a modulus of 1,400 grams per denier or greater. The multi-calender process of the present invention enables production of a high-strength, high-modulus UHMWPE component for ballistic-resistant articles and other applications at significantly higher rates and at a lower unit cost. | 10-16-2008 |
| 20080290547 | Methods of forming muffler preforms - Methods of forming compressed preform products formed from continuous fibers substantially evenly coated with a thermoplastic sizing composition are provided. Applying a thermoplastic sizing composition to continuous fibers during the formation of the fibers enables a preform to be formed without applying any additional sizing or binder compositions at later stages of the manufacturing of the preform. The thermoplastic sizing composition includes a thermoplastic material, and, optionally a silane coupling agent. The thermoplastic material in the thermoplastic sizing composition includes chemicals and/or compounds that are thermoplastic or possess thermoplastic properties. One or more preforms may be randomly inserted to a muffler cavity. Upon the application of heat, the preforms decompress and fill the cavity with fibrous material. Due to the ability to decompress the compressed preform product, the preform product can have a shape that is independent of the shape of the muffler cavity. | 11-27-2008 |
| 20090160077 | AQUEOUS BINDER FOR FIBROUS OR GRANULAR SUBSTRATES - Aqueous binders for fibrous and granular substrates, based on itaconic acid copolymers. | 06-25-2009 |
| 20090243137 | Method and apparatus for the production of high tenacity polyolefin sheet - A process for the production of virtually full density polyolefin suitable for further processing by drawing to form a high tenacity, highly oriented polyolefin sheet comprising: a) feeding a metered amount of polyolefin powder into the nip between two heated calendar rolls initially set at a gap smaller than the size of the smallest polyolefin powder particle and at a temperature above the melting point of the powder; b) rolling the powder through the nip under these conditions until a coherent sheet of polyolefin is produced: and c) once a coherent sheet of polyolefin exits the nip lowering the temperature in the nip to a temperature below the melting point of the polyolefin powder and increasing the gap to a desired level above the thickness of the largest powder particle. Apparatus for the performance of such a process is also described. | 10-01-2009 |
| 20090243138 | Method and apparatus for the production of high tenacity polyolefin sheet - A process for the production of virtually full density polyolefin suitable for further processing by drawing to form a high tenacity, highly oriented polyolefin sheet comprising: a) feeding a metered amount of polyolefin powder into the nip between two heated calender rolls; b) rolling the powder through the nip under these conditions until a coherent sheet of polyolefin is produced. According to a highly preferred embodiment, initially, the nip is set at a gap smaller than the size of the smallest polyolefin powder particle and at a temperature above the melting point of the powder and once a coherent sheet of polyolefin exits the nip the temperature in the nip is lowered to a temperature below the melting point of the polyolefin powder and the gap increased to a desired level above the thickness of the largest powder particle. | 10-01-2009 |
| 20100289169 | Apparatus and method for dry forming a uniform non-woven fibrous web - An apparatus and method is disclosed for dry forming a uniform non-woven fibrous web. The apparatus includes a transport duct, a spreading member and a discharge member connected in series. The discharge member has a flexible plate and a plurality of screws which act upon the flexible plate to deflect its inner surface and provide further control of the basis weight of the to be formed fibrous web. The apparatus also has a forming zone located below the discharge member. The method combines a plurality of individual fibers with a pressurized gaseous stream and routes this stream through the apparatus to form the uniform non-woven fibrous web. | 11-18-2010 |
| 20110089596 | Method and apparatus for the production of high tenacity polyolefin sheet - A process for the production of virtually full density polyolefin suitable for further processing by drawing to form a high tenacity, highly oriented polyolefin sheet comprising: a) feeding a metered amount of polyolefin powder into the nip between two heated calender rolls; b) rolling the powder through the nip under these conditions until a coherent sheet of polyolefin is produced. According to a highly preferred embodiment, initially, the nip is set at a gap smaller than the size of the smallest polyolefin powder particle and at a temperature above the melting point of the powder and once a coherent sheet of polyolefin exits the nip the temperature in the nip is lowered to a temperature below the melting point of the polyolefin powder and the gap increased to a desired level above the thickness of the largest powder particle. | 04-21-2011 |
| 20110089597 | Method and apparatus for the production of high tenacity polyolefin sheet - A process for the production of virtually full density polyolefin suitable for further processing by drawing to form a high tenacity, highly oriented polyolefin sheet comprising: a) feeding a metered amount of polyolefin powder into the nip between two heated calender rolls initially set at a gap smaller than the size of the smallest polyolefin powder particle and at a temperature above the melting point of the powder; b) rolling the powder through the nip under these conditions until a coherent sheet of polyolefin is produced: and c) once a coherent sheet of polyolefin exits the nip lowering the temperature in the nip to a temperature below the melting point of the polyolefin powder and increasing the gap to a desired level above the thickness of the largest powder particle. Apparatus for the performance of such a process is also described. | 04-21-2011 |
| 20110095447 | PROCESS FOR MANUFACTURING POLYOLEFIN FILMS - A process for manufacturing a film of ultra-high molecular weight polyolefin comprising: (a) subjecting a starting ultra-high molecular weight polyolefin with a weight average molecular weight of at least 500 000 gram/mole in powder form to a compacting step using an isobaric press: and (b) subjecting the compacted polyolefin to a rolling step and at least one stretching step under such conditions that at no point during the processing of the polymer its temperature is raised to a value above its melting point. The process allows for the manufacture of ultra-high molecular weight polyolefin films of high quality. | 04-28-2011 |
| 20110291316 | METHOD FOR MANUFACTURING WOOD FIBER INSULATING BOARDS - The invention relates to a method for manufacturing wood fiber insulating boards, wherein wood fibers are mixed with thermoplastic plastic fibers as binders and a fiber mat is produced therefrom, wherein multi-component fibers composed of at least one first and one second plastic component having different melting points are used as plastic fibers, wherein the fiber mat is heated in such a way that the second component of the plastic fiber softens and wherein the fiber mat is cooled down to produce the insulating board, characterized in that a steam/air mixture having a specified dew point flows through the fiber mat to heat the fiber mat and that multi-component plastic fibers are used as binders, the first component of which has a melting point above the dew point and the second component of which has a melting point below the dew point. | 12-01-2011 |
| 20120001360 | CONCRETE BLOCK MOLD WITH DIAMOND INSERT - A block mold for forming a block, comprising a bottom wall, a side wall movable relative to the bottom wall, and a textured material on the side wall (e.g., near a bottom portion of the side wall) and adapted to create a textured surface on the block when the side wall is moved relative to the bottom wall. The textured material comprises abrasive particles (e.g., ten to sixty micron diamond grain) in a matrix (e.g., nickel alloy). In one embodiment, opposing first and second side surfaces of the side wall form two adjacent mold cavities, and the first and second side surfaces each include textured material (e.g., on a lower portion of the respective side surface). Preferably, the side wall includes a side surface defining a plane, and the textured material is applied to the side surface to create the textured surface that protrudes from the plane. | 01-05-2012 |
| 20120091618 | SYNTHETIC COMPOSITION OF MARBLE AND METHOD OF PRODUCTION - A method of producing a synthetic composition having properties of marble includes blending a polymer resin with a stone gravel bit to form a mixture. The method also includes processing the mixture of polymer resin with the stone gravel bit to produce a synthetic marble composition through a polymerization of the mixture that is cast in a casting cell. Further, the method may include preparing a mold to form a casting cell, removing air bubbles from the mixture of polymer resin with the stone gravel bit to enhance a physical property of the synthetic marble material, casting the mixture in the casting cell, polymerizing the cast mixture through an autoclave polymerization of the mixture at a pressure ranging from 1 to 10 atmospheres and a temperature ranging from 50° to 100° C. to prepare the synthetic marble material composition, and curing the synthetic marble sheet in an oven. | 04-19-2012 |
| 20120256340 | ANTHROPIC STONE MATERIALS AND MIXES AND METHODS FOR MAKING SAME - Disclosed is an anthropic stone material made by the introduction of water to a particulate casting mix comprising a lightweight component comprising a mixture of exfoliated vermiculite and a volcanic component selected from the group consisting of exfoliated perlite, pumice, and mixtures thereof, said exfoliated vermiculite and volcanic component mixed in a ratio range of 2:1 to 1:2 by volume, a cementitious component, and wherein said lightweight component and cementitious component are mixed in a ratio range of from about 3:2 to 2:3 by volume. | 10-11-2012 |
| 20120306115 | PROCESS FOR PRODUCTION OF POLYTETRAFLUOROETHYLENE SHEET, AND PROCESS FOR PRODUCTION OF POLYTETRAFLUOROETHYLENE SEAL TAPE - Disclosed is a process for production of a polytetrafluoroethylene (PTFE) sheet, which is superior in productivity compared to conventional processes and can reduce the cost of production. Also disclosed is a process for production of a PTFE seal tape. The processes comprise the following steps (i) to (iii): (i) applying a force to a PTFE particle suspension comprising PTFE particles, a surfactant and water (a dispersion medium) so that the particles can come close to each other or contact with each other, thereby forming a PTFE-containing solid material having the water and the surfactant included therein; (ii) shaping the solid material into a sheet-like form; and (iii) reducing the water content in the sheet-like solid material. | 12-06-2012 |
| 20130043615 | INJECTION MOLDING FABRICATION METHOD - A method of forming a composite article by injecting at least two composite materials comprising metal carbides into a mold to form a green compact is disclosed. The composite materials may be metal powders comprising a binder metal, a hard particle. The composite material may further comprise a plastic binder. The two different composite materials are injected into the mold to form the green compact. Additionally, the composite materials may be injected through a die before entering the mold. In a specific embodiment, the die forms at least one internal channel within the green compact. | 02-21-2013 |
| 20130292869 | MEDICAL DEVICES AND METHODS INCLUDING POLYMERS HAVING BIOLOGICALLY ACTIVE AGENTS THEREIN - The implant design is a drug loaded polymer device, such as a rod, designed to control the release of a biologically active agent, such as clonidine or its derivatives, such as clonidine HCl for a prolonged period of time, such as 2 months, 3 months, 4 months, and even 4.5 months. The polymer is preferably a biodegradable polymer, such as poly(lactide-co-glycolide) or polylactic acid/polylactide. The challenge in using the HCl salt forms of drugs such as clonidine, is controlling the release of the highly water soluble drug for up to 4.5 months. It has been found that by controlling the particle size distribution of the drug powder, the drug distribution within the polymer matrix is more uniform and can be controlled. Therefore, the large aggregates, which cause rapid drug release can be eliminated. | 11-07-2013 |
| 20140027942 | PROCESS FOR PRODUCING WOODEN SYNTHETIC CONSTRUCTION MATERIAL - A process for producing a high utility wooden synthetic construction material, with a woodgrain appearance close to the texture of natural wood, which effectively uses waste in the form of a wood powder of plywood. A wood powder of plywood, manufactured by adding an adhesive to wood fibers or chips and pressurizing, and a thermoplastic synthetic resin are used as main raw materials. A material obtained by adding an auxiliary raw material to the main raw materials is heated and melted at 160° C. to 200° C., and then pelletized to obtain raw material pellets. The raw material pellets are loaded into an extrusion molding or an injection molding machine, without actively removing contained moisture derived from the wood powder of plywood and an adhesive component from the raw material pellets, heated and melted at 150° C. to 200° C., and extruded from the mold or injected into the mold. | 01-30-2014 |
| 20140327170 | PROCESS FOR MANUFACTURING POLYOLEFIN FILMS - A process for manufacturing a film of ultra-high molecular weight polyolefin includes (a) feeding an ultra-high molecular weight polyethylene with a weight average molecular weight of at least 500,000 gram/mole as a powder having a bulk density below 0.5 g/cm | 11-06-2014 |
| 20160107344 | MATERIAL SHEET AND PROCESS FOR ITS PREPARATION - The invention relates to a material sheet comprising a woven fabric of polymer tapes, wherein the width of a tape varies less than 2% on average in the longitudinal direction of the tape. The invention also relates to a process for the preparation of the material sheet, and to a ballistic resistant article comprising the material sheet. A ballistic resistant article comprising the material sheet exhibits excellent antiballistic properties. | 04-21-2016 |
