Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 7943545 | Polyethylene materials prepared using mixed ziegler-natta catalyst systems A polyethylene may be prepared using a mixture of a silica supported catalyst and a magnesium chloride supported catalyst. By changing the ratio of the two catalysts, the polyethylene produced may have a varying bulk density and shear response. The method allows for... | 05/17/2011 |
| 7932331 | Polymerisation of ethylene and Ī±-olefins with imino-quinolinol complexes The present invention discloses active oligomerization or polymerization catalyst systems based on imino-quinolinol complexes. ... | 04/26/2011 |
| 7915342 | Breathable films A polymeric composition having a MFR of less than 2 g/10 min. which when formed into a film has an oxygen transmission rate of equal to or greater than 300 cc/100 in2/24 h at 73Ā° F. and 0% relative humidity per ASTM D 3895 and a water vapor transmission ... | 03/29/2011 |
| 7906597 | Method and apparatus for preparing and supplying catalyst slurry to a polymerization reactor The present invention relates to an apparatus for preparing and supplying catalyst to an ethylene slurry loop polymerisation reactor and to an apparatus for controlling the injection of catalyst slurry in a polymerization reactor wherein polyethylene is prepared. Th... | 03/15/2011 |
| 7904271 | Method and system for determining catalyst activity The present invention relates to a method for determining activity of a catalyst in a polymerization process, said polymerization process comprising the steps of feeding a catalyst and a diluent into a storage vessel, to form a concentrated settled catalyst, feeding... | 03/08/2011 |
| 7902325 | Polypropylene having reduced residual metals Polymerization processes are described herein. The polymerization processes generally include introducing a catalyst system to a reaction zone, introducing an olefin monomer to the reaction zone, contacting the olefin monomer with the catalyst system to form a polyo... | 03/08/2011 |
| 7902307 | Olefin polymerization process with optimized product discharge The present invention relates to a polymerization process for producing olefin polymers in a loop reactor comprising the steps of: introducing into the loop reactor one or more olefin reactants, polymerization catalysts and diluents, and while circulating said react... | 03/08/2011 |
| 7902306 | Polyolefin production using high olefin concentration Methods for polymerization of an olefin monomer and polymers formed therefrom are described herein. The methods generally include introducing an olefin monomer and a diluent carrier liquid into a polymerization reactor, supplying at least one polymerization catalyst... | 03/08/2011 |
| 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 |
| 7893171 | Polymer compositions for reduced shrinkage A polymeric composition comprising a polymer and a nucleation agent, and having isotropic shrinkage of less than about 20% and a differential shrinkage of less than about 20%. ... | 02/22/2011 |
| 7892614 | Polyethylene squeezable pouches The invention relates to a process for producing polyethylene aseptic squeezable pouches. The invention also covers said pouches and their use for medical packaging applications. ... | 02/22/2011 |
| 7892475 | Blends of polypropylene impact copolymers with other polymers It has been discovered that the properties of sheet or film materials of broad molecular weight distribution ethylene/propylene rubber impact-modified heterophasic copolymer (ICP) can be improved by blending the ICP with a second polyolefin. The second polyolefin ma... | 02/22/2011 |
| 7847042 | Slurry polymerisation process of ethylene in the presence of low amount of scavenger The invention discloses a metallocene catalysed slurry polymerisation process of ethylene in the presence of a low concentration of scavenger. This allows improving the anti-sheeting of the reactor during the polymerisation process. ... | 12/07/2010 |
| 7868106 | Caps and closures This invention discloses caps and closures for carbonated drinks produced by injection moulding or by compression moulding with a bimodal high density polyethylene (HDPE) resin. ... | 01/11/2011 |
| 7863366 | Conductive polyolefins with good mechanical properties Processes for preparing reinforced polymeric material and the materials formed therefrom are discussed herein. The processes generally include providing a polymeric matrix, providing single-wall carbon nanotubes (SWNT) or multiple-wall carbon nanotubes (MWNT), purif... | 01/04/2011 |
| 7861410 | Heat treated devolatilizer nozzle A method is provided for perforating a steel plate, forming a devolatilizer nozzle from the steel plate, and heat treating the devolatilizer nozzle. The devolatilizer nozzle may have a yield strength of at least about 110 ksi, and a tensile strength of at least abou... | 01/04/2011 |
| 7851578 | Succinate-containing polymerization catalyst system using n-butylmethyldimethoxysilane for preparation of polypropylene film grade resins It has been discovered that using n-butylmethyldimethoxysilane (BMDS) as an external electron donor for succinate-containing Ziegler-Natta catalysts can provide a catalyst system that may prepare polypropylene films with improved properties. The catalyst systems of ... | 12/14/2010 |
| 7851566 | Interconnected loop reactors The present invention describes a reactor comprising two interconnected loops wherein the growing polymer flows continuously in circuit from the first loop to the second loop through a First pipe and back to the first loop through a second pipe. It also discloses pr... | 12/14/2010 |
| 7851400 | Multimodal polyethylene obtained with multilayer chromium catalyst The present invention concerns a catalyst for the production of high density polyethylene, by homopolymerising ethylene or copolymerising ethylene and an alpha-olefinic comonomer comprising 3 to 10 carbon atoms, prepared by the steps of: a) selecting a ... | 12/14/2010 |
| 7851395 | Controlled distribution of stereospecific sites in Ziegler-Natta catalyst systems This invention relates to an improved method for improving the tacticity of Ziegler-Natta catalyst systems and for controlling the behaviour of the active stereospecific sites. ... | 12/14/2010 |
| 7842829 | Catalyst systems based on aromatic diimine ligands The present invention discloses the use of aromatic diamine ligands to prepare catalyst systems suitable for the oligomerization or polymerization of ethylene and alpha-olefins. ... | 11/30/2010 |
| 7834095 | Polystyrene blends and a method of making same Disclosed are blends of polystyrene and at least one of syndiotactic polypropylene, ethylene propylene copolymers, and styrene-butadiene-styrene triblock copolymers. These blends are prepared using solution polymerization and have unique morphologies and desirable p... | 11/16/2010 |
| 7825196 | Color reduction in polyethylene modified by radical initiation Polyethylene modified by using radical initiators such as oxygen and peroxides sometimes has a yellow color which may be reduced or eliminated by incorporating additives such as polyethylene glycol, and/or neutralizing species such as alkali metal stearates, particu... | 11/02/2010 |
| 7824485 | Asphalt compositions and the preparation thereof Asphalt compositions and methods of forming such are described herein. The asphalt compositions and methods of forming such are generally adapted to enable open air processing while producing asphalt compositions that exhibit properties capable of meeting SUPERPAVEā... | 11/02/2010 |
| 7799724 | Hollow beads of polyethylene The present invention discloses a method for preparing hollow beads of polyethylene of controlled morphology and size. ... | 09/21/2010 |
| 7786237 | Polyethylene materials prepared using mixed ziegler-natta catalysts systems A polyethylene may be prepared using a mixture of a silica supported catalyst and a magnesium chloride supported catalyst. By changing the ratio of the two catalysts, the polyethylene produced may have a varying bulk density and shear response. The method allows for... | 08/31/2010 |
| 7786232 | Single site catalyst systems having a scorpion-like structure The present invention discloses single site catalyst systems having a scorpion-like three dimensional structure that are suitable for oligomerising or polymerising ethylene and alpha-olefins. ... | 08/31/2010 |
| 7781553 | 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... | 08/24/2010 |
| 7772338 | Use of a Ziegler-Natta catalyst to make a polypropylene homopolymer or random copolymer having a high melt flow rate The present invention relates to a process for the production of a high melt flow propylene homopolymer or random copolymer with low odor and low volatiles content, which is suitable for thin-walled injection molding applications, said process comprising the step of... | 08/10/2010 |
| 7754849 | Devolatilizer nozzle A devolatilizer nozzle comprising at least one perforated flow tube having a non-circular cross-section. In an embodiment, the non-circular cross-section has equal to or greater than 3 sides. The non-circular cross-section of said nozzle may be a triangle, diamond, ... | 07/13/2010 |
| 7754835 | Polymerisation of ethylene and alpha-olefins with phosphino-iminophenol complexes The present invention relates to the field of single site catalyst systems based on phosphino-iminophenol complexes that are suitable for oligomerising or polymerising ethylene and alpha-olefins. ... | 07/13/2010 |
| 7754817 | Low temperature initiators for improving the rubber phase volume of HIPS formulations Peroxide initiators are disclosed that can be used at lower temperatures during HIPS production. Enhanced formation of graft polymers between polystyrene and polybutadiene (rubber) can be accomplished by using these lower temperature peroxide initiators that have a ... | 07/13/2010 |
| 7754814 | Polypropylene materials and method of preparing polypropylene materials A polypropylene material is prepared from a blend of polypropylene impact copolymer and high crystallinity polypropylene having less than 2 percent xylene solubles. The material is prepared by blending the polymers while they are in a molten state, and forming a fil... | 07/13/2010 |
| 7745568 | Transfer vessel between flash tank and purge column A process is provided for recovering polymer solids from a polymerisation reactor effluent. The process comprises extracting the polymerisation effluent from a polymerisation reactor; passing the effluent, or a part thereof, to a flash vessel for flashing liquid in ... | 06/29/2010 |
| 7745551 | Low gel chromium catalysis The present invention discloses the use of a chromium-based catalyst system in two serially connected loop reactors for copolymerising ethylene and a comonomer, at reduced productivity, the final polyethylene having a reduced amount of gel. ... | 06/29/2010 |
| 7745527 | Polyethylene-syndiotactic polypropylene composition and processing thereof A processable polypropylene composition comprising a mixture of a major amount of a syndiotactic polypropylene and a minor amount of polyethylene wax. The syndiotactic polypropylene has a designated recrystallization temperature, an original minor melting peak and a... | 06/29/2010 |
| 7744823 | Polymerization reactors with a by-pass line The present invention discloses a slurry loop reactor having at least two loops (1, 2) and comprising a by-pass line (11) connecting two points (12, 13) of the same loop reactor by an alternate route having a different transit time than that of ... | 06/29/2010 |
| 7718837 | Promotors for controlling acidity and pore size of zeolite catalysts for use in alkylation A metal-modified alkylation catalyst including a metal/zeolite is provided where the metal is one or two selected from the group consisting of yttrium and a rare earth of the lanthanide series other than cerium. Where two metals are used, one may be Ce or La. The me... | 05/18/2010 |
| 7718745 | Heterogenisation of catalyst components Provided is a method for the production of an olefin polymer, which method comprises polymerizing an olefin monomer in the presence of a metallocene catalyst, which catalyst comprises one or more alkyl moieties having a terminal olefin group, and is selected from a ... | 05/18/2010 |
| 7696395 | Dehydrogenation and polymerization process Process for the production of an isoprene containing rubber compound by dehydrogenation of an isoamylene containing feedstock supplied to a dehydrogenation reactor containing a particulate dehydrogenation catalyst comprising iron and potassium and having a pore diam... | 04/13/2010 |
