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| Number | Title | Issue Date |
| 8137607 | Process for making reusable tooling A reusable, low investment tool for making parts is made by a process in which a mixture of sand and an activator is applied as a layer onto which a printed resin is deposited to form a base and a pattern. A plurality of sidewalls may also be provided on the base us... | 03/20/2012 |
| 7959842 | Carbon nanotube structure Techniques for forming a carbon nanotube (CNT) structure are disclosed. ... | 06/14/2011 |
| 7378043 | Latex gloves and articles with geometrically defined surface texture providing enhanced grip and method for in-line processing thereof Latex articles with geometrically defined surface structure providing enhanced grip characteristics in dry, wet or oily environment; and a method of making same comprising applying a polymeric coagulant coating to a smooth former surface, wherein the coating becomes... | 05/27/2008 |
| 7374711 | Accelerator-free thin-walled rubber vulcanizates from latex Thin-walled rubber articles for use contact with living tissue or with materials to be delivered to living tissue are prepared from aqueous latex of either natural rubber or synthetic cis-1,4-polyisoprene by vulcanization to produce both carbon-carbon and carbon-(su... | 05/20/2008 |
| 7322813 | Technology of production of elastomeric sleeves Presented is a method of manufacturing opened at both ends thin walled elastomeric sleeves of complex shapes. The proposed technique employs standard dip molding process but with modifications which enable producing of opened at both ends sleeves right from the dryi... | 01/29/2008 |
| 7240471 | Row divider having a variable-height ear saver For a row crop header, a row divider having a variable-height ear saver feature. The row divider comprises a point, a cover, and a partition. The point has a trailing edge vertically moveable relative to the cover. The partition fills a resultant gap between the poi... | 07/10/2007 |
| 7112298 | Method for forming a medical device with polymer coated inner lumen A medical device, such as a catheter shaft, having an inner lumen defined by a layer of polymer coating, and a method for forming such a medical device. In some embodiments, the method generally includes the steps of applying a polymer coating to an elongated mandre... | 09/26/2006 |
| 7048884 | Production of gloves and other articles of flexible polymer material A process for producing an article in a flexible foamed polymer material, including treating a former with a coagulant; dipping the treated former in a latex foam mixture to form a layer of the mixture on the former that includes air cells; curing the layer to gel t... | 05/23/2006 |
| 7045087 | Assembly of free-standing films using a layer-by-layer process A method for the layer-by-layer assembly of a free standing thin film includes the steps of preparing a support with a suitable substrate; forming a thin film having a plurality of layers onto the substrate utilizing a layer-by-layer assembly process; removing the s... | 05/16/2006 |
| 6920643 | Vulcanization of dip-molded rubber articles with molten media baths Pore-free rubber articles are prepared by dip-molding in a dipping medium that includes a vulcanizing agent, then by immersing the dip former in a heated liquid bath that is chemically inert. A particularly effective liquid bath is molten inorganic salt. In addition... | 07/26/2005 |
| 6866805 | Hybrid intravascular stent A hybrid stent is formed which exhibits both high flexibility and high radial strength. The expandable hybrid stent for implantation in a body lumen, such as a coronary artery, consists of radially expandable cylindrical rings generally aligned on a common longitudi... | 03/15/2005 |
| 6775848 | Vulcanization of dip-molded rubber articles with molten media baths Pore-free rubber articles are prepared by dip-molding in a dipping medium that includes a vulcanizing agent, then by immersing the dip former in a heated liquid bath that is chemically inert. A particularly effective liquid bath is molten inorganic salt. In addition... | 08/17/2004 |
| 6776950 | Slush-molding method for the manufacture of imitation leathers, in particular for the upholstery of cars A slush-moulding method combined with cross-linking, including the filling of a tank with a suitable quantity of ground polymer blend and the coupling of said tank with a heated mold is provided. The closed system thus obtained is moved in order to transfer the powd... | 08/17/2004 |
| 6692840 | Polymer coating for rubber articles The present invention is directed to the use of a polymer coating composition having a dispersant, microbeads and a high Tg polymer with a Tg of greater than -10° C. for the inner coating on natural and synthetic rubber articles, particularly for latex g... | 02/17/2004 |
| 6673288 | Multi element moving vacuum chamber and process for powder slush plastic casting A multi element moving vacuum chamber (MEMVC) for rotational casting includes a mold having a predefined shape and an axis of rotation, and a box containing casting material. The MEMVC further includes a first vacuum element mounted to an outer mold surfa... | 01/06/2004 |
| 6569375 | Vulcanization of dip-molded rubber articles with molten media baths Pore-free rubber articles are prepared by dip-molding in a dipping medium that includes a vulcanizing agent, then by immersing the dip former in a heated liquid bath that is chemically inert. A particularly effective liquid bath is molten inorganic salt. ... | 05/27/2003 |
| 6527990 | Method for producing a rubber glove A rubber glove is produced by sequentially performing the step of immersing a glove mold in a coagulating synthetic rubber latex containing synthetic rubber in latex form, thermally expansible microcapsules, and a rubber coagulant to form a coagulant-cont... | 03/04/2003 |
| 6465591 | Acrylic emulsion coating for films, paper and rubber A polymer useful in forming coatings for articles is provided. The polymer is an acrylic copolymer formed as the reaction product of a plurality of monomers which include an alkyl (meth)acrylate, a quaternary amine (meth)acrylate, a hydroxyalkyl (meth)acr... | 10/15/2002 |
| 6352666 | Manufacture of rubber articles A powder-free coagulant for use in latex dipping processes comprises a salt stable dispersion of a polychloroprene rubber and an inorganic metal salt. Optionally the coagulant will also contain a powder-free release agent, to aid release of the dipped art... | 03/05/2002 |
| 6347409 | Manufacture of rubber articles A powder-free coagulant for use in latex dipping processes comprises a salt stable dispersion of a polychloroprene rubber and an inorganic metal salt. Optionally the coagulant will also contain a powder-free release agent, to aid release of the dipped art... | 02/19/2002 |
| 6299817 | Method for seamless construction of molded elastomer products A process which allows elastomeric materials of different colors, durometers and/or other material characteristics to chemically bond to one another so as to eliminate any possibility of delamination. Latex-based liquid elastomer solutions having differen... | 10/09/2001 |
| 6284182 | Molding process employing heated fluid A molding apparatus and method for forming a thermoplastic shell or skin product. The molding apparatus includes a hollow mold housing provided with a mold tool thereon, which together define a fluid chamber within the mold housing. A quantity of heated l... | 09/04/2001 |
| 6280673 | Method for making lubricous gloves A modified elastomeric glove is disclosed having a lubricous coating made up of polyvinyl alcohol and a thickening agent. The thickening agent is initially added in order to increase the processability of the polyvinyl alcohol coating in order to prevent ... | 08/28/2001 |
| 6217815 | Method and apparatus for manufacturing prophylactic devices Prophylactic devices are made in an inert atmosphere by cooling mandrels on which the devices are to be deposited, dipping the mandrels into a polymeric material in a solvent/carrier and a mold release agent, rotating the mandrels during and after the dip... | 04/17/2001 |
| 6143230 | Method of making plastic hoods and dividers Plastic hoods and dividers are provided for use with row crop heads. The hoods and dividers are single walled and self-supporting. The single-walled hoods and dividers are preferably manufactured through a rotational molding process wherein a non-stick co... | 11/07/2000 |
| 6019922 | Powder-free medical gloves A powder free medical glove having an outer side a silicon treated surface and the inside of cross linked coagulated glove bonded with a layer formed of an anti-blocking composition. The anti-blocking composition includes of a polymer or copolymer mixed t... | 02/01/2000 |
| 5935506 | Method for the manufacture of intraluminal stents of bioresorbable polymeric material A method for the manufacture of intravascular stents of bioresorbable material comprises the following steps: preparing a viscous solution of poly-ଲ-hydroxybutanoic acid as a bioresorbable polymeric material in a solvent, successively coating a male mold... | 08/10/1999 |
| 5932162 | Method and device for molding powdered slush A powdered slush molding device has debris capturing devices in its reservoir. A resin material is passed back and forth through openings between the reservoir and the mold by rotating the apparatus back and forth until a film of desired thickness is form... | 08/03/1999 |
| 5888441 | Preparation of antimicrobial articles A method for the manufacture of an antimicrobial rubber article which includes incorporating an effective amount of an antimicrobial agent into the natural rubber after the article has been shaped but before the article has been cured is disclosed.... | 03/30/1999 |
| 5833911 | Method for forming a glove using a folded glove form A method for forming a glove in an elastomer deposition process employs a folded glove form. The form has a hand forming portion having palm and finger forming portions. The finger forming portions terminate in distal tips and the cuff forming portion ter... | 11/10/1998 |
| 5811050 | Electromagnetic interference shield for electronic devices An EMI shield for personal computers, cellular telephones, and other electronic devices is constructed from thermoformable polymeric material which is then metallized on all surfaces by vacuum metallization techniques to provide an inexpensive, lightweigh... | 09/22/1998 |
| 5795530 | Method and base for traffic channelizer A resilient and flexible base for a two-piece traffic channelizer is provided that does not require external ballasting to stabilize the channelizer against wind forces and vacuum forces created by passing vehicles and minor impacts from a vehicle. The ba... | 08/18/1998 |
| 5779964 | Method of making a male catheter A male urinary catheter and method of making same. The catheter employs a condom like sheath of silicone rubber which sealingly engages the penis of the patient. A catheter stem at the distal end of the sheath couples to a urine collection system. The she... | 07/14/1998 |
| 5776399 | Method of molding a shaped article on a heated and insulated molding tool A method of molding a shaped article includes the steps of providing a molding tool having an exposed surface for receiving a plastic powder resin to be melted thereagainst and an insulated surface; providing an insulating panel with insulated laminated a... | 07/07/1998 |
| 5756035 | Method of making an access graft and a vascular prosthesis A vascular prosthesis is adapted for use as an access graft having a permanent set, kink-resistant U-bend section. A method for making the access graft includes the utilization of a tube of implantable material adapted to be attached in a blood circulator... | 05/26/1998 |
| 5744086 | Slush molding of polyolefin powder compositions and the compositions Laminar articles are manufactured by slush molding polyolefin compositions in powder form composed of: A) 10-40 parts by weight of a propylene homopolymer or copolymer; B) 0-20 parts by weight of a copolymer fraction containing ethylene, propylene and/or a CH | 04/28/1998 |
| 5433913 | Method of manufacturing a heat-resistant resinous tube A method of manufacturing and mass-producing a seamless heat-resistant resinous tube with a uniform tube wall thickness and circumference, which includes the steps of coating the precursor solution of a tube material to the surface of a core at a thicknes... | 07/18/1995 |
| 5407612 | Method for making puncture and cut resistant material and article A puncture and cut resistant composite material including at least one elastomeric layer containing a plurality of flat platelets oriented substantially parallel to the plane of the elastomeric layer, wherein each of the platelets is a small, thin element... | 04/18/1995 |
| 5356589 | Method and apparatus for forming rotationally cast tank liner having an end fitting Method and apparatus for rotationally casting a plastic tank liner having a molded-in access fitting and for ensuring a uniform thickness of plastic in the wall of the liner and on the fitting. A hollow mold having a mold cavity surface conforming to the ... | 10/18/1994 |
| 5304337 | Glove forming method A glove configuration and method for making same of a thin flexible film is shown. The glove and form having an ambidextrous shape useful for either the left or right hand use and a cuff configuration which resists rolldown. The configuration of the cuff ... | 04/19/1994 |
