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| Number | Title | Issue Date |
| 6764751 | Coated multilayer polyethylene film Coated multilayer polyethylene films having improved sealability and barrier properties are provided. The films include a substrate which has been oriented in the machine direction to a degree of from about 5:1 to about 8:1 and in the direction transverse to the mac... | 07/20/2004 |
| 6331346 | Ink receptive coextruded film The invention discloses an ink-based-image-bearing substrate. This substrate includes a coextruded thermoplastic film having at least one layer made from a polymer derived from polypropylene and another layer made from an acidic functional group-bearing p... | 12/18/2001 |
| 6326068 | Multi-layer hermetically sealable film A multi-layer film has an improved composite structure for providing hermetic seals to packages manufactured in high speed packaging apparatus. The structure of the multi-layer film includes layers A/B/C/D. Skin layer A is formed from polypropylene copoly... | 12/04/2001 |
| 6322894 | Matte surface film with improved cuttability The present invention relates to a matte surface film comprising: (a) a base layer comprising high density polyethylene (HDPE); and (b) a matte surface layer comprising a blend of two or more incompatible polyolefins. In preferred embodiments, the matte surface lay... | 11/27/2001 |
| 6319881 | Haze free oil additive compositions containing dispersants from selectively hydrogenated diene copolymers The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated, functionalized, optionally modified, and post treated. The dispersant substances include a copolymer of t... | 11/20/2001 |
| 6312825 | High barrier multi-layer film A multi layer film having enhanced barrier properties with respect to oxygen and water vapor transmission as well as an excellent surface for film laminating, printing and coating processes is provided. The multi layer film includes a polyolefin core laye... | 11/06/2001 |
| 6183856 | Opaque polymeric films and processes for making same A process for making an opaque, oriented polymeric film structure and the resultant film structures. The process comprises preparing a melt containing a crystallizable polymeric matrix material at a temperature of at least above the melting point of the p... | 02/06/2001 |
| 6165418 | System for controlling temperature of a continuous polymerization process A system for controlling temperature of a polymerization process includes a primary reactor system having a polymerization reactor and a recycle gas line which includes a heat exchanger, a primary temperature controller which continuously measures tempera... | 12/26/2000 |
| 6077602 | Heat sealable film A heat sealable thermoplastic film is coated on at least one side with an acrylonitrile-containing coating containing from at least about 25 wt. % acrylonitrile. More specifically the film is coated on a first side with a polymeric coating comprising (i) ... | 06/20/2000 |
| 6048608 | Opaque oriented polypropylene film The present invention relates to an opaque, biaxially oriented polymeric film having a thermoplastic polymer matrix material within which is located a stratum of voids. The voids are formed during orientation by a cavitating agent which is a particle of a... | 04/11/2000 |
| 6033771 | WVTR film using wax in combination with a cavitated tie layer A multi layer film having enhanced barrier properties with respect to oxygen and water vapor transmission is provided. The multi layer film includes a polyolefin core layer, a copolymer or terpolymer intermediate layer on at least one surface of the polyo... | 03/07/2000 |
| 6025059 | Coated plastic substrates having wet-scratch resistance Printable, coated plastic substrates are disclosed. Plastic substrates are preferably films substrates, which when coated with an epoxy coating, optionally containing anti-abrasive particulate, provide excellent wet-scratch resistance and ink gloss. The e... | 02/15/2000 |
| 6013353 | Metallized multilayer packaging film A metallized multilayer film comprising a film substrate having a polymer core layer, e.g., a polypropylene homopolymer (OPP), on at least one surface of which is a polymer skin layer having a lower melting temperature than that of said core layer, the ex... | 01/11/2000 |
| 5994256 | Process for forming a catalyst precursor for copolymerizing ethylene and an alpha-olefin of 3 to 10 carbon atoms A process is described for forming a catalyst precursor, for copolymerizing ethylene and an alpha-olefin of 3 to 10 carbon atoms, by preparing a contact mixture of an inert solvent, dibutylmagnesium and tetraalkyl orthosilicate which is free of precipitat... | 11/30/1999 |
| 5981079 | Enhanced barrier vacuum metallized films A multi layer film having enhanced barrier properties against transmission of oxygen and water vapor is provided. The multi layer film includes a polypropylene base layer, with a high density polyethylene layer on at least one surface of the polypropylene... | 11/09/1999 |
| 5972496 | Film structure A film structure comprises a first sealable skin layer (a) of an olefin co- or terpolymer having an external surface which contains a slip/antiblock system. The slip/antiblock system comprises non-migratory particulate crosslinked hydrocarbyl substituted ... | 10/26/1999 |
| 5869585 | Multi-component catalyst systems for olefin polymerization Multi-component catalyst systems for polymerization and copolymerization of olefins consist of at least one transition metal complex containing a multidentate ligand and a three-component cocatalyst. The transition metal complexes with bidentate ligands L... | 02/09/1999 |
| 5840244 | High impact LLDPE films with high stalk extrusion Blown films of linear low density polyethylene are produced by a high stalk process comprising extruding the linear low density polyethylene through an annular die to form an extruded tube of molten material, cooling the extruded tube while drawing the tu... | 11/24/1998 |
| 5776618 | Barrier film structures A polymeric film structure exhibiting improved barrier properties and which is formed in the absence of a primer. The film structure is produced by coating a surface of a polymeric substrate with a solution of a polyvinyl alcohol-vinyl amine copolymer, an... | 07/07/1998 |
| 5688556 | Barrier films having vapor coated EVOH surfaces A method of producing a multilayer polymeric film is accomplished through the vapor deposition of a barrier coating onto an ethylene vinyl alcohol copolymer layer, which is adhered to a polymeric substrate. A multilayer polymeric film exhibiting barrier c... | 11/18/1997 |
| 5672383 | Barrier films having carbon-coated high energy surfaces A carbon coated polymeric film is produced by Plasma Enhanced Chemical Vapor Deposition. An amorphous nylon layer having at least one exposed high energy surface is adhered to a polymeric substrate. Carbon is thereafter deposited on the exposed high energ... | 09/30/1997 |
| 5667902 | High moisture barrier polypropylene-based film A polymeric film having improved moisture barrier characteristics and enhanced mechanical properties. The film has a base layer which includes a blend of a high crystallinity polypropylene having an isotactic stereoregularity greater than about 93%, a con... | 09/16/1997 |
| 5604042 | Cellulose material containing barrier film structures A polymeric film structure having improved oxygen, flavor/odor, grease/oil and moisture barrier characteristics is disclosed. The structure includes a polymeric substrate adapted to receive an oxygen barrier on one side thereof and a moisture barrier on t... | 02/18/1997 |
| 5536894 | MCM-56 as sorbent and catalyst component This invention relates to use of synthetic layered material MCM-56 as a sorbent and as a catalyst component in catalytic conversion of organic compounds. Examples of sorbent use include rapid sorption of hydrocarbons and separating at least one hydrocarbo... | 07/16/1996 |
| 5534656 | Organic compound conversion with MCM-58 This invention relates to use of synthetic porous crystalline MCM-58 as a catalyst component in catalytic conversion of organic compounds.... | 07/09/1996 |
| 5527981 | Sorption separation with MCM-58 This invention relates to use of synthetic porous crystalline material MCM-58 as a sorbent composition for separating at least one component from a mixture of components.... | 06/18/1996 |
| 5236882 | Catalyst comprising a hydrogenation metal and a delaminated layered silicate There is provided a catalyst comprising at least one hydrogenation metal, such as Ni and Mo, supported on a delaminated layered silicate, such as kenyaite, which has been swollen and calcined. There is also provided a method for making this catalyst. Ther... | 08/17/1993 |
| 4871702 | Ammonium activation of zeolites in the presence of gaseous ammonia Alumina-composited zeolite catalysts are activated by contact with an aqueous ammonium solution under ammonia gas pressure such that a pH of at least about 10 is maintained in the solution. The treated zeolite may thereafter be calcined without prior ammo... | 10/03/1989 |
| 4869806 | Production of high viscosity index lubricating oil stock Waxy hydrocarbon oils, e.g., of petroleum origin, are catalytically dewaxed to produce high viscosity index lubricating oil stocks utilizing as catalyst acidic zeolite ZSM-57.... | 09/26/1989 |
| 4867863 | Resid catalytic cracking process utilizing ZSM-5 for increased gasoline octane A process for catalytically cracking deep cut vacuum gas oils, resids, or other reduced crudes containing metal contaminants to increase gasoline octane. Hydrocarbon feedstocks which include vanadium and sodium contaminants are introduced into the reactio... | 09/19/1989 |
| 4863885 | Method for increasing the hydrocarbon sorption capacity of a zeolite A method is disclosed for increasing the hydrocarbon sorption capacity of a highly siliceous shape-selective zeolite by exposing the zeolite to an aqueous solution having an initial pH ranging between about 10.5 to about 14. The method is particularly use... | 09/05/1989 |
| 4861894 | Pyridine and alkylpyridine synthesis using a crystalline silicate catalyst having the ZSM-5 structure The present invention relates to an improved process for synthesizing pyridine or alkylpyridines comprising reacting ammonia with a carbonyl reactant in the presence of a catalyst composition which comprises a crystalline silicate having a silica/alumina ... | 08/29/1989 |
| 4861933 | Process for converting aliphatics to aromatics over a gallium-activated zeolite A catalytic process is provided for converting a C3+ feedstock containing at least 50 wt. % of C3 to C12 aliphatic hydrocarbons to aromatics by contacting the feedstock under conversion conditions of a severity... | 08/29/1989 |
| 4861932 | Aromatization process A process for converting a C2 -C12 paraffinic hydrocarbon feed to aromatics comprising passing the feed through a first conversion zone wherein the feed contacts a noble metal/low acidity medium pore size zeolite catalyst, and then p... | 08/29/1989 |
| 4853107 | Method and apparatus for removing small catalyst particles in FCC systems Disclosed is a method of and apparatus for reducing the level of extremely small catalyst particles ("fines") in an FCC system by temporarily retaining particles separated from the secondary cyclone separator in either a reactor vessel or catalyst regener... | 08/01/1989 |
| 4851604 | Toluene disproportionation An improved process is provided for vapor-phase disproportionation of toluene over catalyst comprising a molecular sieve having a high lattice aluminum content whereby its silica/alumina mole ratio is less than 55 and a diffusion rate constant of less tha... | 07/25/1989 |
| 4839108 | Liquid distribution device and pan A liquid distribution device for more uniformly distributing a liquid to packed beds is composed of a box-pipe distributor, for the delivery of liquid to a pan distributor having a deck and risers postioned on the deck, with ells contained in the risers. ... | 06/13/1989 |
| 4839027 | Catalytic reforming process Catalytic reformng of a naphtha feed to provide high octane aromatic components employs a low acidity refractory oxide-bound intermediate and/or large pore zeolite prepared with at least an extrusion-facilitating amount of low acidity refractory oxide in ... | 06/13/1989 |
| 4834869 | Resid upgrading process This invention relates to a method of preparing a metal-containing amorphous magnesia-alumina-aluminum phosphate catalyst support involving the admixture of an organic cation having a size equal to or greater than 2 Angstroms, the organic cation preferabl... | 05/30/1989 |
| 4828812 | Titanosilicates of enhanced ion exchange capacity and their preparation A method for increasing ion exchange capacity of a titanosilicate comprises contacting the titanosilicate with aqueous alkaline solution having a pH ranging from 7 to 10. The resulting material is especially useful as a support for highly dispersed noble ... | 05/09/1989 |
