Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 8147735 | Semipermeable polymers and method for producing same A polyamide membrane comprising reaction product of an anhydrous solution comprising an anhydrous solvent, at least one polyfunctional secondary amine and a pre-polymer deposition catalyst; and an anhydrous, organic solvent solution comprising a polyfunctional aroma... | 04/03/2012 |
| 8048348 | Shape memory polyurethane foam for downhole sand control filtration devices Filtration devices may include a shape-memory material having a compressed run-in position or shape and an original expanded position or shape. The shape-memory material may include an open cell porous rigid polyurethane foam material held in the compressed run-in p... | 11/01/2011 |
| 8017050 | Water purification membranes with improved fouling resistance The present invention includes methods and compositions for liquid separation and water purification. The present invention includes a purification membrane having a polymer matrix purification membrane that has been treated with dopamine to form a polydopamine coat... | 09/13/2011 |
| 7988891 | Monopersulfate treatment of membranes A method of improving the water permeability and/or cleaning a porous polymeric microfiltration or ultrafiltration membrane, preferably a hydrophobic/hydrophilic blended membrane, eg P VdF/PVP comprising the step of contacting the porous polymeric membrane with a so... | 08/02/2011 |
| 7901603 | Process for producing adhesive polymeric articles from expanded foam materials Herein is disclosed a method for modifying the surface adhesion characteristics of expanded foams and beads or other expanded structures or components formed therefrom, whereby the expanded foams and beads or other expanded structures or components formed therefrom,... | 03/08/2011 |
| 7901602 | Expandable styrene-modified olefin resin particle, pre-expanded particle, and process for producing molded foam According to the present invention, there is provided a method for producing expandable styrene-modified olefin-based resin particles comprising steps of: impregnating styrene-modified olefin-based resin particles with an easily volatile blowing agent to obtain expa... | 03/08/2011 |
| 7837913 | High aspect ratio template and method for producing same Millimeter to nano-scale structures manufactured using a multi-component polymer fiber matrix are disclosed. The use of dissimilar polymers allows the selective dissolution of the polymers at various stages of the manufacturing process. In one application, biocompat... | 11/23/2010 |
| 7727434 | Membranes and methods of treating membranes Membranes as well as a methods of treating membranes are disclosed. The method of treating a membrane includes contacting the membrane with a first solvent, contacting the membrane with an inert solvent, and contacting the membrane with an amine reactive compound. T... | 06/01/2010 |
| 7658872 | Process for preparing semipermeable membranes having improved permeability The invention provides methods for preparing reverse osmosis membranes having improved permeability as well as membranes prepared by such methods. ... | 02/09/2010 |
| 7537718 | Hydrophilic polyethersulfone membrane and method for preparing same The present disclosure relates to improved efficient and effective systems and methods of manufacturing hydrophilic polyethersulfone (PES) membrane suitable for commercial applications and the resultant hydrophilic polyethersulfone (PES) membrane suitable for commer... | 05/26/2009 |
| 7381331 | Hydrophilic membrane and associated method A membrane is provided, which may include a microporous base membrane; and a cross-linkable coating disposed on a surface of the membrane. The coating may include polyvinyl nucleophilic polymer and a urethane or a blocked isocyanate. The coating may be cross-linked.... | 06/03/2008 |
| 7354480 | Stent mandrel fixture and system for reducing coating defects A stent mandrel fixture for supporting a stent during the application of a coating substance is provided. ... | 04/08/2008 |
| 7335265 | Apparatus and method for coating stents An apparatus for coating implantable medical devices, such as stents, is disclosed. A method of coating stents using the apparatus is also disclosed. The apparatus includes a barrier or barriers for isolating an area of the stent on which a composition for coating a... | 02/26/2008 |
| 7336875 | Enhancement of optical and mechanical properties in a polymeric optical element by annealing under a compressed gas A method for treating a polymeric optical element which includes the steps of mounting a polymeric optical element into a chamber, injecting a compressed gas as an annealing medium into the chamber and annealing the polymeric optical element and removing the anneali... | 02/26/2008 |
| 7323209 | Apparatus and method for coating stents An apparatus and method is provided for forming coatings on stents. The apparatus includes a temperature adjusting element that can increase or decrease the temperature of the stent. The apparatus can support a stent during the application of a coating composition t... | 01/29/2008 |
| 7303683 | Microorganism-removing filter medium having high isoelectric material and low melt index binder A filter medium capable of removing microorganisms from a fluid such as water. The filter medium includes particles of activated carbon, particles of a substantially insoluble inorganic material having an isoelectric point greater than the fluid being filtered. A lo... | 12/04/2007 |
| 7300022 | Modified membranes A porous polymeric membrane formed from a blend of a polymeric membrane forming material, such as polyvinylidene fluoride or polysulfone and a polymeric reactivity modifying agent adapted to modify the surface active properties of the porous polymeric membrane. The ... | 11/27/2007 |
| 7284668 | Microporous membrane substrate having caustic stable, low protein binding surface The present invention provides porous media or membranes having a surface coating that includes a first coating of a cross-linked terpolymer and a second coating comprising a copolymer or a terpolymer modified with a hydrophilic or hydrophobic functional group which... | 10/23/2007 |
| 7273551 | Functionalized polyimide molded body and functionalized polyimide membrane In a polyimide molded body, in particular a polyimide membrane which is functionalized with a chemical group and a method for production thereof, a molded body or membrane is obtained, whereby a pre-prepared polyimide body, as starting material, is brought into cont... | 09/25/2007 |
| 7258891 | Stent mounting assembly and a method of using the same to coat a stent A stent mounting device and a method of coating a stent using the device are provided. ... | 08/21/2007 |
| 7255792 | Method for modifying an organic composition There is provided a process for modifying a first organic composition comprising (i) at least one first solvent, (ii) at least one solute, and (iii) optionally, at least one second solvent to produce a modified organic composition in which the concentration of the a... | 08/14/2007 |
| 7201860 | Polyamide membrane with improved hydrolytic stability and method for production thereof The invention relates to a method for producing a hydrolytically stable polyamide membrane having an open-pored, microporous and sponge-like support-layer structure, using a process involving thermally induced liquid-liquid phase separation. A solution of an aliphat... | 04/10/2007 |
| 7201958 | Polymer foam plank with densified skin, method and apparatus for producing a densified skin on a foam plank A method and apparatus for making a densified skin polymer foam plank comprising providing a polymer foam having a plurality of cells and heating an outer surface of the foam at a heating station. The heating step collapses and melts the cells adjacent the outer sur... | 04/10/2007 |
| 7201022 | Systems and methods for filling voids and improving properties of porous thin films Methods of reducing the intrusions or migrations of photolithography materials by introducing a sol-gel layer onto a porous thin film prior to applying the photolithography/photoresist material layer. Curing the sol-gel layer results in the sol-gel layer merging or ... | 04/10/2007 |
| 7198675 | Stent mandrel fixture and method for selectively coating surfaces of a stent A stent mandrel fixture for supporting a stent during the application of a coating substance is provided. A method supporting a stent during the application of a coating substance is also provided. ... | 04/03/2007 |
| 7186457 | Cellulosic composite component A component such as a siding panel comprised of a PVC/wood flour composite. Another embodiment is a component such as a siding panel that is made from a PVC/CPE/wood flour composite. The cellulosic composite may be extruded through a die and then bent into the shape... | 03/06/2007 |
| 7172075 | Defect free composite membranes, method for producing said membranes and use of the same A defect free semipermeable composite membrane having outstanding integrity and high water permeability is provided. Said composite membrane comprises an inside support layer to provide sufficient mechanical strength, an outside barrier layer to provide selective se... | 02/06/2007 |
| 7165682 | Defect free composite membranes, method for producing said membranes and use of the same A defect free semipermeable composite membrane having excellent integrity and high water permeability is provided. Said composite membrane comprises an inside support layer to provide sufficient mechanical strength; an outside barrier layer to provide selective sepa... | 01/23/2007 |
| 7144533 | Microporous filter media, filtration systems containing same, and methods of making and using The invention is directed to a microbiological interception enhanced filter medium, preferably having an adsorbent prefilter located upstream from the filter medium. Preferably, the prefilter is adapted to remove natural organic matter in an influent prior to the in... | 12/05/2006 |
| 7144505 | Melt-spun polysulfone semipermeable membranes and methods for making the same The present invention provides, inter alia, a composition useful for producing a homogeneous, semipermeable membrane, the composition comprising a polysulfone semipermeable membrane, the polysulfone semipermeable membrane comprising a mixture of: an ultra-high-molec... | 12/05/2006 |
| 7097805 | Method for manufacturing slippery-proof foam materials having protruded threads The present invention discloses a method for manufacturing slippery-proof foam materials having protruded threads, which comprises the steps of foaming Thermoplastic Elastomer (TPE) or EVA pellets into a foam material plate, attaching a high heat resisting mesh clot... | 08/29/2006 |
| 7096872 | Ear plugs and method of forming same A process for forming a foamed thermoplastic earplug, comprising the steps of extruding a foamed body of thermoplastic material; shaping the foamed thermoplastic material; and at least partially separating the resulting shaped material for forming individual earplug... | 08/29/2006 |
| 7087168 | Hollow fiber membrane for purifying blood It is intended to provide a blood purification membrane having excellent performance and showing little elution of blood and little adhesion of blood proteins or platelets. The above object can be achieved by using a moisten membrane, which is free from any membrane... | 08/08/2006 |
| 7081273 | Method for producing defect free composite membranes A defect free semipermeable composite membrane having excellent integrity and high water permeability is provided. Said composite membrane comprises an inside support layer to provide sufficient mechanical strength; an outside barrier layer to provide selective sepa... | 07/25/2006 |
| 7074276 | Clamp mandrel fixture and a method of using the same to minimize coating defects A mounting assembly for supporting a stent and a method of using the same to coat a stent is disclosed. ... | 07/11/2006 |
| 7073671 | Microporous membrane substrate having caustic stable, low protein binding surface The present invention provides porous media or membranes having a surface coating that includes a first coating of a cross-linked terpolymer and a second coating comprising a copolymer or a terpolymer modified with a hydrophilic or hydrophobic functional group which... | 07/11/2006 |
| 7056458 | Non-thrombogenic semipermeable membrane and method for making same The invention concerns a non-thrombogenic semipermeable membrane comprising a support semipermeable membrane and an anticoagulant suitable for treating blood and plasma by extracorporeal circulation. The invention is characterized in that: the support membrane is ma... | 06/06/2006 |
| 7037454 | Compositions for a disposable food container using flour The present invention uses natural materials to manufacture disposable containers, so that the present invention has no problem of environment hormone and the like as well as does no harm to human bodies unlike polystyrene-based disposable containers. Further, the p... | 05/02/2006 |
| 7017352 | Cooling of extruded and compression molded materials The present invention relates to a system and a method for cooling extruded and molded materials. The present invention is especially useful to thoroughly cool an extrudate by directing a cooling fluid toward a surface of the extrudate (e.g., an interior surface tha... | 03/28/2006 |
| 7018461 | Release agents The invention provides release agents and methods for preparing textiles and molded articles there from. Lignocellulosic materials, concrete and polyurethane foam can be molded with these release agents. The release agents comprise the salt of tall oil fatty acids, ... | 03/28/2006 |
