Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8288495 | Propylene homopolymer for capacitors [Object] To provide a propylene homopolymer suitable for capacitor films having high withstand voltage and a stretched film formed by stretching the propylene homopolymer. [Solution] A propylene homopolymer of the present invention for capacitors satisfies th... | 10/16/2012 |
| 8273839 | Process for producing high strength polyethylene film Antiballistic or composite products include high strength polyethylene films or tapes produced in a process including the steps of providing a quantity of disentangled polyethylene, applying a pressure of at least ... | 09/25/2012 |
| 8022160 | Process for making a monofilament-like product The invention relates to a process for making a monofilament-like product from a precursor containing at least one strand of fibers made from ultra-high molar mass polyethylene, comprising a) exposing the precursor to a temperature within the melting point range of ... | 09/20/2011 |
| 7932341 | Polypropylene polymer film and adhesive film using the same An object of the present invention is to provide a polypropylene polymer film superior in convenience in handling that does not generate troubles such as wrinkling, elongation or breakage during processing at a high temperature of 80° C. to 120° C., independently ... | 04/26/2011 |
| 7897710 | Bimodal polyethylene film Film formed from a polyethylene resin composition which obeys a dynamic rheological relationship at 190° C. between melt storage modulus G′, measured in Pa and at a dynamic frequency where the loss modulus G″=3000 Pa, and dynamic complex viscosity η*100 | 03/01/2011 |
| 7893181 | Bimodal film resin and products made therefrom A polymer, and a process of producing the polymer, that comprises at least one olefin and has a density of 0.955 g/cc to 0.959 g/cc and a secant modulus 140,000 psi to 220,000 psi. A film that comprises the polymer, that has a thickness of 0.5 mil to 10 mil, a drop ... | 02/22/2011 |
| 7872085 | Biaxially oriented polyproplyene film The present invention relates to a biaxially oriented polypropylene film containing: a polypropylene resin as a main component thereof, having a weight average molecular weight of 100,000 or more and 500,000 or less, the weight average molecular weight being determi... | 01/18/2011 |
| 7772346 | Highly stereoregular polypropylene with improved properties Propylene polymers having a content of isotactic pentads (mmmm) higher than 97%, molecular weight distribution, expressed by the formula (a) ratio, equal to or higher than 6 and a value of formula (b) ratio equal to or lower than 5.5. The said polymers are prepared ... | 08/10/2010 |
| 7718747 | Fiber and process for obtaining same from high-modulus, extrudable polyethylene A fiber and a process for obtaining same from a high-modulus polyethylene, extrudable in state-of-the-art equipment and in the absence of previous solubilization in any kind of organic solvent is described, the process comprising providing such a polyethylene, intro... | 05/18/2010 |
| 7632907 | Polyethylene film having improved mechanical and barrier properties and method of making same A polyethylene film comprising a polymer composition having the characteristics of a total energy dart drop, measured in accordance with ASTM D4272, of greater than a bout 0.45 ft.lbf, a dart drop impact strength, measured in accordance with ASTM D1709 Method A, of ... | 12/15/2009 |
| 7615602 | Process for producing polypropylene film The invention relates to a process for producing a polypropylene film having a small dynamic coefficient of friction (CoF) and to a film obtained by this process. The invention further relates to the use of a polypropylene composition in a film forming process in or... | 11/10/2009 |
| 7576166 | Process for the production of linear low-density polyethylene composition A process for producing bimodal linear low-density polyethylene polymer compositions, useful for making films. The polymer compositions have a melt flow rate MFR2 of 0.4 to 1.0 g/10 min and a density of 918 to 925 kn/m3. The process to produce ... | 08/18/2009 |
| 7538173 | Polyolefin compositions Ethylene copolymers valuable for films, coatings, sheets, and molded articles are disclosed. Some of the copolymers have a long-chain-branching index from 0.25 to 0.60 and a gpcBR index from 0.1 to 0.7. Others have a primary DSC melting point that is less than its s... | 05/26/2009 |
| 7517941 | Shrink film A shrink film comprising a polyethylene film of thickness 5 to 500 μm, wherein the polyethylene comprises an ethylene homopolymer-copolymer mixture having a molecular weight distribution in the range of 5 to 40, and a weight average molecular weight of at least 100... | 04/14/2009 |
| 7473751 | Biaxially-oriented metallocene-based polypropylene films having reduced thickness A polymer film having a thickness of 10 microns or less and improved barrier characteristics to both water vapor and oxygen is formed from a biaxially-oriented polypropylene film of isotactic polypropylene. The polypropylene is prepared by the polymerization of prop... | 01/06/2009 |
| 7442743 | Propylene polymer resin with improved properties The present invention relates to a process for the production of a propylene polymer in a multistage polymerization process comprising the polymerisation of propylene in the presence of a catalyst in a first reaction zone comprising at least one slurry reactor to gi... | 10/28/2008 |
| 7439315 | Polymer film and method for producing the same A copolymer film having a decreased dielectric constant which is produced by supplying at least two organic monomers as raw materials, forming a film of a copolymer comprising a backbone based on said at least two monomers on a surface of a substrate, and heating th... | 10/21/2008 |
| 7423105 | Fast curing primary optical fiber coatings A curable composition for coating an optical fiber that includes an aliphatic-aromatic oxyglycidyl(meth)acrylate monomeric component, an aliphatic-(hetero)cyclic oxyglycidyl(meth)acrylate monomeric component, or a combination thereof, and an ethylenically unsaturate... | 09/09/2008 |
| 7420022 | Polymerization catalyst system utilizing external donor systems and processes of forming polymers therewith External donor systems, catalyst systems and olefin polymerization processes are described herein. The external donor systems generally include a first external donor represented by the general formula SiR2m(OR3)4-m, where... | 09/02/2008 |
| 7402640 | Fluoropolymer and film made of it A fluorocopolymer and film thereof exhibiting excellent transparency and mechanical strength at ambient and elevated temperatures, wherein the fluorocopolymer includes polymerized units based on ethylene (E), tetrafluoroethylene (TFE), hexafluoropropylene (HFP) and ... | 07/22/2008 |
| 7390575 | Propylene-ethylene random block copolymer and biaxially oriented multi-layer film using the same as a surface layer A polyolefin based biaxially oriented multi-layer film having at least one surface layer comprise of the propylene-ethylene random block copolymer; The propylene-ethylene random block copolymer obtained through sequential polymerization catalyzed by a metallo... | 06/24/2008 |
| 7370395 | Heating apparatus and process for drawing polyolefin fibers A heating apparatus and process useful for drawing ultrahigh molecular weight polyolefin fibers, such as polyethylene fibers. The heating apparatus includes a first set of rolls and a plurality of aligned ovens. The apparatus includes a second set of rolls at the ex... | 05/13/2008 |
| 7365142 | Polyelectrolyte complex films for analytical and membrane separation of chiral compounds The present invention is directed to enantioselective polyelectrolyte complex films. Further, said films may be free or isolated membranes, or coatings on substrates such a porous substrates, capillary tubes, chromatographic packing material, and monolithic stationa... | 04/29/2008 |
| 7361717 | Fluorocopolymer film and its application A fluorocopolymer film formed by molding at a molding temperature of at most 320° C. a fluorocopolymer comprising repeating units based on ethylene, repeating units based on tetrafluoroethylene, repeating units based on hexafluoropropylene and repeating units based... | 04/22/2008 |
| 7355089 | Compositions of ethylene/α-olefin multi-block interpolymer for elastic films and laminates This invention relates to polyolefin compositions. In particular, the invention pertains to elastic polymer compositions that can be more easily processed on cast film lines, extrusion lamination or coating lines due to improved resistance to draw resonance. The com... | 04/08/2008 |
| 7354880 | Catalyst composition and methods for its preparation and use in a polymerization process The present invention relates to a catalyst composition and a method for making the catalyst composition of a polymerization catalyst and a carboxylate metal salt. The invention is also directed to the use of the catalyst composition in the polymerization of olefin(... | 04/08/2008 |
| 7351478 | Heat-seal films and method of manufacture A heat-seal polymer film and method of forming such film is provided. The heat-seal film is formed from metallocene-catalyzed isotactic random copolymers of propylene and at least one other C2 to C8 alpha olefin, such as ethylene random. Such f... | 04/01/2008 |
| 7341794 | Laminated film A laminated film of a propylene resin layer and an ethylene resin layer is provided, which does not require solvent removal and recovery devices, etc., is low in influences against working environments and a danger of occurrence of fire, and has a high interlaminar ... | 03/11/2008 |
| 7323190 | Cell delivery system comprising a fibrous matrix and cells Cell storage and delivery systems and methods for storing and delivering viable cells to a mammal are disclosed. The cell storage and delivery systems include a biodegradable and/or bioabsorbable fibrous matrix physically associated with viable cells to contain and ... | 01/29/2008 |
| 7314905 | Drawn film and process for producing the same A film that has high rigidity and high heat resistance and good releasability from a roughened copper foil surface, which is subjected to surface oxidization or etching treatment with acid, such as a black oxidized copper foil surface and that is suitable as a relea... | 01/01/2008 |
| 7312292 | Polycyclic polymers containing pendant ion conducting moieties A polymer comprising polycyclic repeating units having recurring ion conducting groups and optional crosslinkable groups is disclosed. The present invention provides the capability of tailoring polymers to impart unique properties to membranes fabricated from the po... | 12/25/2007 |
| 7312295 | Copolymers of ethylene and 1-heptene The present invention relates to a copolymer comprising units derived from ethylene and 1-heptene, to a composition comprising such a copolymer, and to an article prepared from or containing such a copolymer. ... | 12/25/2007 |
| 7311963 | Process for the production of a shaped article The invention relates to a process for the production of a shaped article comprising the compression of one or more fiber layers containing polyolefin fibers. The invention also relates to shaped articles obtainable with the process according to the invention and th... | 12/25/2007 |
| 7294678 | Thin walled polynitrile oxide crosslinked rubber film products and methods of manufacture thereof Natural rubber and/or synthetic polyisoprene film products having enhanced tear strength and tensile strength crosslinked with a one polynitrile oxide, intended for direct or indirect contact with living tissue or fluids to be placed in living organisms. ... | 11/13/2007 |
| 7288220 | Solution spinning of UHMW Poly (alpha-olefin) with recovery and recycling of volatile spinning solvent A process for spinning high molecular weight poly (alph-olefin) filament, particularly ultrahigh molecular weight polyethylene filament, from solution in a volatile spinning solvent with recovery and recycling of the solvent. ... | 10/30/2007 |
| 7288493 | Body armor with improved knife-stab resistance formed from flexible composites Flexible body armor formed from flexible composites which have improved knife-stab resistance. The body armor is formed from composites which include layers of a fabric base, formed from high tenacity fibers, and a rubber layer bonded to the fabric base. A thermopla... | 10/30/2007 |
| 7276558 | Polymer composition and film thereof Disclosed is a polymer composition comprising a copolymer of propylene, a specific amount of α-olefin having 4 or more carbon atoms and optionally a specific amount of ethylene and a specific 1-butene homopolymer or copolymer having a melting point of not lower tha... | 10/02/2007 |
| 7273912 | Supported olefin polymerization catalyst Supported catalyst systems are provided comprising (a) a transition metal compound, (b) a non aluminoxane activator comprising, and (c) a support material comprising an inorganic metal oxide, inorganic metal halide or polymeric material or mixtures thereof character... | 09/25/2007 |
| 7271221 | Method of making interpolymers and products made therefrom Olefin polymers having a melt strength of about 5cN at 190 ° C., and when made into a film have a CD shrink of at least 20%. Some of the polymers have a comb-like structure with at least 0.3 long-chain branches per 1000 carbon atoms are disclosed. Some compositions... | 09/18/2007 |
| 7265193 | Polymerization process This invention relates to a process to polymerize olefins comprising: contacting: (i) propylene and (ii) a mixture comprising, optionally ethylene, and three or more different alpha olefins having ... | 09/04/2007 |
