Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7528185 | White polyolefin compositions having reduced die drool Extrudable white-filled polyolefin compositions which exhibit reduced die drool are provided. More particularly, the compositions are white or opaque compositions comprising a polyolefin, whitening or opacifying inorganic filler and a mercaptobenzimidazole compound.... | 05/05/2009 |
| 7456241 | Microfine adhesive powders and process Microfine powder adhesive blends are provided. The powders are comprised of a polyolefin base resin component and acid or acid derivative functionalized polyolefin component with one or more optional components. The microfine powders are produced from melt blended a... | 11/25/2008 |
| 7439290 | Linear low density polyethylene compositions and films Linear low density polyethylene compositions suitable for the production of films having improved breathability are provided. The compositions which are comprised of a linear low density polyethylene base resin, a functionalized polyolefin and a polyester polyol are... | 10/21/2008 |
| 7375162 | Filled propylene polymer compositions having improved melt strength Filled propylene polymer compositions having significantly improved melt strength are provided. The compositions are blends of propylene polymer, mineral filler with an ethylene polymer component consisting of an ethylene plastomer and a silane-containing ethylene p... | 05/20/2008 |
| 7348371 | Cellulosic-reinforced composites having increased resistance to water absorption Cellulosic-reinforced composites having increased resistance to water absorption are provided. The improved composites are obtained using a mixture of high density polyethylene and silane copolymer with the cellulosic filler. ... | 03/25/2008 |
| 7238765 | High density polyethylene and insulation compositions for wire and cable High density polyethylene having reduced melt elasticity and a reduced level of highly short-chain branched polymer molecules and wire and cable insulation compositions based thereon having improved strippability and oxidative stability are provided. ... | 07/03/2007 |
| 7238754 | Solid state process to modify the melt characteristics of polyethylene resins and products A process for improving the melt characteristics of polyethylene resins is provided. The process involves contacting a polyethylene resin powder with a low level of free radical initiator at a temperature below the melting point of the resin. ... | 07/03/2007 |
| 7232604 | Flame retardant crosslinkable compositions and articles Flame retardant crosslinkable polyolefin compositions useful for the production of films, sheets and membranes are provided. The compositions are comprised of ethylene-silane copolymer, plastomer, flame retardant filler and, optionally, silanol condensation catalyst... | 06/19/2007 |
| 7151145 | Process for narrowing short-chain branching distribution in two-step ethylene polymerizations and products An improved two-step polymerization process wherein ethylene homopolymer is produced in a first reactor and ethylene copolymer having narrowed short-chain branching distribution is prepared in a second reactor. Narrowed short-chain branching distribution of the copo... | 12/19/2006 |
| 7125929 | Adhesive composition having improved clarity for coextruded barrier films Adhesive compositions useful for adhering barrier resins are provided. The adhesives are a blend of ethylene-a-olefin copolymer base resin having hard and soft phases which form a network structure and a functionally modified ethylene-α-olefin copolymer. ... | 10/24/2006 |
| 7071259 | Functionalized propylene polymer compositions and composites containing same Functionalized propylene polymer compositions useful as coupling/compatibilizing agents are provided. The compositions are a mixture of two different functionalized propylene polymers. Polypropylene composites containing fillers and/or non-compatible resins and form... | 07/04/2006 |
| 7037970 | Process for increasing the melt strength of ethylene-vinyl carboxylate copolymers Ethylene polymer composites, concentrates and a process utilized for their preparation are provided. The composites of the invention have increased melt strength compared to the base resin and other improved physical characteristics. The composites contain an organi... | 05/02/2006 |
| 7030188 | Multi-phase polypropylene compositions Improved multi-phase polypropylene composites are provided. The compositions are comprised of a polypropylene base resin, a non-compatible dispersed phase which can be a polymer or filler material and a propylene-ethylene copolymer grafted with a carboxylic acid or ... | 04/18/2006 |
| 6984677 | Flame retardant insulation composition having improved scorch resistance Crosslinkable, flame retardant insulation compositions having improved resistance to scorch are provided. The compositions are comprised of a base resin, hydrated inorganic filler, coupling agent and stabilizer and formulated with a peroxide/scorch retardant combina... | 01/10/2006 |
| 6936655 | Crosslinkable flame retardant wire and cable compositions having improved abrasion resistance Moisture curable flame retardant wire and cable formulations having improved abrasion resistance are provided. The compositions are comprised of a high density silane-containing polyethylene base resin which can be a blend of a bimodal HDPE and ethylene-silane copol... | 08/30/2005 |
| 6914097 | Process for producing acid functionalized polyolefins and products A process for producing acid functionalized polyolefins by hydrolyzing maleic anhydride grafts using a dispersion technique is provided. Acid functionalized polyolefin powders produced by the process as well as adhesive blends formulated therewith are also disclosed... | 07/05/2005 |
| 6894115 | Dual-functionalized adhesive compositions Adhesive blend compositions having significantly improved adhesion to metals at elevated temperatures are provided. The compositions are blends of one or more polyolefin base resins, an acid or acid derivative modified polyolefin and silane modified polyolefin. A lo... | 05/17/2005 |
| 6844389 | Ethylene polymer compositions having improved melt strength Ethylene polymer composites and concentrates utilized for their preparation are provided. The composites of the invention have increased melt strength compared to the base resin and other improved physical characteristics. The composites contain an organically modif... | 01/18/2005 |
| 6838520 | Adhesives for fluoropolymer films and structures containing same Adhesives useful for adhering fluoropolymers are provided. The adhesives are a blend of linear low density polyethylene, ethylene polymer plastomer, polyolefin elastomer and modified polyolefin having acid or acid derivative functionality. Composite fluoropolymer/ad... | 01/04/2005 |
| 6835777 | Adhesive compositions having improved performance Adhesive compositions which exhibit significantly improved adhesion to metals and polyolefins are provided. The compositions are blends of one or more polyolefin base resins and graft-modified polyolefin to which a low level of adhesion promoter is added. ... | 12/28/2004 |
| 6812304 | Process for producing improved premixed supported boraaryl catalysts A process for preparing premixed supported boraaryl catalysts having improved shelf life is provided. The process comprises supporting an organometallic compound comprising a group 3-10 transition metal or lanthanide metal and at least one boraaryl ligand an inorgan... | 11/02/2004 |
| 6803421 | High flow filled propylene polymer compositions having improved impact and dimensional properties High melt flow filled propylene polymer compositions suitable for injection molding are provided. The compositions are blends of propylene impact copolymer, high melt index plastomer and mineral filler. ... | 10/12/2004 |
| 6793866 | Process for producing bonded activated carbon structures and articles An improved process for producing bonded activated carbon structures utilizing microwave radiation is provided. The structures are produced by exposing a particulate mixture comprised of activated carbon particles and polyolefin resin binder particles in a microwave... | 09/21/2004 |
| 6716928 | Grafted propylene copolymers and adhesive blends Improved grafted propylene copolymer compositions and adhesive blends containing same are provided. The grafts are obtained by reacting propylene-ethylene impact copolymers having specified rubber contents and molecular weight distributions with ethylenically unsatu... | 04/06/2004 |
| 6673131 | Fuel additive compositions and distillate fuels containing same Improved fuel additives and distillate fuels containing said additives are described. The additives impart improved low temperature flow and filterability and also impart stability to distillate fuels, particularly hard-to-treat distillate fuels. The addi... | 01/06/2004 |
| 6656995 | Process for producing olefin polymer composites having improved melt strength A process for producing olefin polymer composites having improved melt strength and other improved physical characteristics is provided. The process is a solution process wherein an organically modified clay is intimately incorporated, at low levels and w... | 12/02/2003 |
| 6566460 | Continuous recovery of polymer from a slurry loop reactor An apparatus and method for continuously removing polymer from a pressurized loop olefin polymerization reactor containing a slurry of polymer particles and fluids. The slurry is continuously discharged from polymer-rich zones of the reactor and enters on... | 05/20/2003 |
| 6093673 | Polymerization system with organosilicon compound The invention relates to olefin polymerization using an organosilicon compound from the pyrazolyl family as an external adjuvant.... | 07/25/2000 |
| 5670439 | Vanadium-containing catalyst system A vanadium-containing catalyst system particularly suited to the polymerization of olefin polymers. The catalyst system includes a supported, first catalyst component prepared by contacting silica with hexaalkyldisilazane and thereupon with (1) a compound... | 09/23/1997 |
| 5610246 | Process for polymerizing propylene using a silica-supported catalyst A new catalyst useful in the polymerization of at least one olefin is disclosed. The catalyst comprises the product obtained by contacting silica, in random order, with (1) at least one hydrocarbon soluble magnesium-containing compound; and (2) a first mo... | 03/11/1997 |
| 5534472 | Vanadium-containing catalyst system A vanadium-containing catalyst system particularly suited to the polymerization of blow moldable olefin polymers. The catalyst system includes a supported, first catalyst component prepared by contacting preheated silica, with (1) a compound or complex wh... | 07/09/1996 |
| 5466648 | Supported alpha-olefin dimerization catalyst The present invention is directed to a supported tungsten-based catalyst composition useful for the dimerization of alpha-olefins including ethylene. More particularly, the catalyst composition of the instant invention comprises an organic or inorganic su... | 11/14/1995 |
| 5424263 | Supported polymerization catalyst A catalyst component useful in the polymerization of olefins is disclosed. The catalyst component comprises the product obtained by steps of (a) contacting silica with at least one hydrocarbon soluble magnesium-containing compound; (b) contacting the prod... | 06/13/1995 |
| 5422386 | Process to simultaneously reactor-fill polyolefins and compatibilize fillers with polyolefins The present invention relates to a process to simultaneously reactor-fill polyolefins and to a compatibilized, reactor-filled polyolefin composite produced by the process of the instant invention. More specifically, the instant invention provides a proces... | 06/06/1995 |
| 5412001 | Method to reactor-fill polyolefins by formation of a dual catalyst system causing compatibilization of the filler with the maxtrix polymer The present invention relates to a method to reactor-fill polyolefins and to reactor-filled composites obtained from the instant method. More specifically, the present invention relates to a method to reactor-fill polyolefins comprising the steps of (a) a... | 05/02/1995 |
| 5376742 | Monomer recovery in gas phase fluid bed olefin polymerization Unreacted monomer present in an ethylene/C3 -C8 alpha-olefin copolymer product produced in a catalyzed fluid bed polymerization process is purged with a gaseous stream obtained by subjecting a portion of the gaseous effluent from the... | 12/27/1994 |
| 5374597 | Vanadium based olefin polymerization catalyst Catalysts useful in olefin polymerization are a mixture of (a) (i) one or more compounds Zn(X1)2 and one or more compounds Al(R1)3, or (ii) Zn(X1)2.2Al(R1)3, wherein X... | 12/20/1994 |
| 5369194 | Olefin polymerization method A multiple site solid catalyst component capable of producing polyolefins having a broad or multimodal molecular weight distribution, such as a bimodal molecular weight distribution, is prepared by contacting a particulate solid support with a zirconium c... | 11/29/1994 |
| 5346872 | Cocatalyst for vanadium/titanium containing polymerization catalyst The present invention relates to a novel catalyst component for ethylene polymerization comprising vanadium and titanium. Moreover, when the vanadium/titanium containing catalyst of the present invention is employed with an aluminum-containing cocatalyst ... | 09/13/1994 |
| 5344803 | Cocatalyst for transition metal-containing -olefin polymerization catalyst The present invention is directed to a novel halosilane cocatalyst component which, when used in conjunction with an aluminum containing cocatalyst, is effective in increasing the activity of a supported magnesium/titanium containing catalyst in the polym... | 09/06/1994 |
