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| Number | Title | Issue Date |
| 4716201 | Films of blends of linear ethylene polymers and aromatic polymers Linear low density copolymers (LLDPE) are blended with up to about 10 weight percent of an aromatic polymer, e.g., polystyrene or poly(para-methylstyrene), to give films having improved MD tear strength or equivalent MD tear strength and higher stiffness ... | 12/29/1987 |
| 4714600 | Process for production of phosphoric acid from dry matrix by SO3 treatment and extraction Phosphoric acid is produced from dry phosphate ore, matrix by acidulation with sulfur trioxide in the presence of sulfuric acid catalyst to form polyphosphoric acid, treatment with sufficient water to convert the polyphosphoric acid to orthophosphoric aci... | 12/22/1987 |
| 4714629 | Method for treating aggregate materials with wax and compositions thereof with bitumen for road surfaces Stone chippings of the type used in the manufacture of road surfaces by hotmix and surface dressing techniques, are rendered water resistant, and less susceptible to binder adhesion failure, by treatment with wax, preferably with wax emulsion.... | 12/22/1987 |
| 4714658 | Method for treating polymer surfaces by corona discharge and then with reducing agent and resulting article Polymer surfaces such as polyethylene or polypropylene films are corona discharge treated in the conventional manner, and then treated with a reducing agent such as aqueous KI to convert the surface functional groups containing oxygen to predominantly hyd... | 12/22/1987 |
| 4704218 | Reaction products of sulfur containing vicinal diols and hydrogen phosphites as lubricant and fuel additives The reaction product of a long chain vicinal diol containing at least 10 carbon atoms and at least one sulfur atom in the chain, with dihydrocarbyl hydrogen phosphites are effective friction reducing antiwear additives in lubricating oils, greases and fue... | 11/03/1987 |
| 4692496 | Films of LLDPE, PP and EPR having improved stiffness, tear and impact strength Polymeric blends comprising linear low density polyethylene (LLDPE) as the major constituent (60 percent or more), and polypropylene (PP) or ethylene-propylene copolymer having a high propylene content and ethylene-propylene rubber as minor constituents e... | 09/08/1987 |
| 4665580 | Scrubbing pad A scrubbing pad having an elongated, flattened body with opposed major surfaces of different textures including an abrasive surface such as steel wool, and reticulated foam. The pad has an interior pocket, accessible through a peripheral opening, which is... | 05/19/1987 |
| 4657715 | Process for preparing smooth skinned extruded foams with water-organic blowing agent Water instead of carbon dioxide is substituted for part of the volatile organic blowing agent, e.g., pentane, resulting in extruded foams having a smooth, lustrous drum side skin compared to foams containing only organic blowing agent or organic blowing a... | 04/14/1987 |
| 4652690 | Oxidative dehydrogenation of alkyl aromatics with carbon molecular sieves Carbon molecular sieves are used in the oxidative dehydrogenation of alkyl aromatic compounds, for example, in the dehydrogenation of ethylbenzene to styrene.... | 03/24/1987 |
| 4621119 | Polypropylene-polyethylene-(ethylene-propylene rubber) compositions and films thereof with improved tear strength The tear strength of biaxially oriented polypropylene is improved by adding polyethylene, e.g., about 5-40 weight percent, and an ethylene propylene rubber, e.g., about 1-10 weight percent.... | 11/04/1986 |
| 4621014 | Biaxially oriented polyolefin films with ethylene-vinyl alcohol barrier layer Polypropylene films having a coextruded ethylene-vinyl alcohol (EVAL) layer cannot be readily oriented because the orientation temperature for the EVAL layer is somewhat higher. By adding an aryl sulfonamide, such as p-toluenesulfonamide to the EVAL layer... | 11/04/1986 |
| 4615941 | Opaque pearlescent films containing dispersed incompatible polymer and polymeric interfacial agent Opaque pearlescent polymer films, e.g., polypropylene, containing finely dispersed particles of an incompatible polymer e.g., nylon, are improved by blending a polymeric interfacial agent with the film polymer and the incompatible polymer to give a film h... | 10/07/1986 |
| 4615689 | Method for preparing paperlike products from fibers threaded with polymer Fibers, such as wood fibers, are treated with a solvent solution of a thermoplastic polymer, e.g., polypropylene; the solvent is removed; and the treated fibers are fused into an article such as a fiber-polymer sheet or a board.... | 10/07/1986 |
| 4615942 | Opaque pearlescent films containing blends of polymers for improved dispersion of incompatible polymer phase Opaque pearlescent polymer films, e.g., polypropylene, containing finely dispersed particles of an incompatible polymer, e.g., nylon, are improved by blending a polymer compatible with the polymer forming continuous film phase to alter its melt rheology a... | 10/07/1986 |
| 4614764 | Linear low density ethylene polymers blended with modified linear low density ethylene polymers The properties of linear ethylene polymers, especially linear, low density polyethylene (LLDPE), are improved by adding a chemically modified ethylene polymer to the base resin. The modification is brought about by the use of a free radical generator, pre... | 09/30/1986 |
| 4591607 | Graft copolymers of para-methylstyrene on polyols and polyurethanes prepared therefrom Para-methylstyrene is polymerized under free-radical conditions in the presence of a polyol to give grafted polymeric polyols which are suitable for use in the production of polyurethane foams.... | 05/27/1986 |
| 4585817 | Crystallizable polyolefin composition having increased crystallization temperature and rate of crystallization Linear low density polyethylene and copolymers of ethylene with at least one alpha-olefin containing 3-8 carbon atoms having increased temperature of crystallization and rate of crystallization are prepared by incorporating a proportion of highly isotacti... | 04/29/1986 |
| 4579898 | Linear polyethylenes stabilized against melt index drop with aromatic sulfonhydrazides The drop in melt index observed when linear polyethylenes are melt processed is reduced by adding a small amount, e.g., about 0.01 to 2 weight percent of an aromatic sulfonhydrazide such as p-toluenesulfonhydrazide.... | 04/01/1986 |
| 4579912 | Films of blends of linear ethylene polymers and aromatic polymers Linear low density copolymers (LLDPE) are blended with up to about 10 weight percent of an aromatic polymer, e.g., polystyrene or poly(para-methylstyrene), to give films having improved MD tear strength or equivalent MD tear strength and higher stiffness ... | 04/01/1986 |
| 4578431 | Process for improving melt strength of ethylene polymers by treatment with organic peroxide Melt strength of polyethylene and ethylene-higher olefin copolymers during processing is improved by pretreating the polymer in melt form at a temperature of at least 230° C. in the presence of an organic peroxide for a period of time equal to at least t... | 03/25/1986 |
| 4565847 | Blends of LLDPE, PP and EPDM or EPR for films of improved stiffness, tear and impact strength Polymeric blends comprising linear low density polyethylene (LLDPE) as the major constituent (60 percent or more), and polypropylene (PP) or ethylene-propylene copolymer having a high propylene content and ethylene-propylene-diene monomer rubber as minor ... | 01/21/1986 |
| 4565899 | Iron oxide catalysts containing copper and zinc compounds and process for para-ethyltoluene dehydrogenation Para-ethyltoluene dehydrogenation catalyst compositions and processes for using such catalysts are provided. The catalyst compositions comprise a catalytically active iron compound, e.g., iron oxide; a potassium catalyst promoter, e.g., potassium carbonat... | 01/21/1986 |
| 4560818 | Process for the oxidative dehydrogenation of ethyltoluene to methylstyrene Ethyltoluene is oxidatively dehydrogenated to methylstyrene selectivity and in high conversions by treatment with hydrogen sulfide and oxygen at elevated temperatures of about 450° C. to 700° C. over magnesium oxide catalyst.... | 12/24/1985 |
| 4560712 | Polypropylene compositions containing bimodal calcium carbonate and a polysiloxane Physical properties of filled polypropylene compositions are improved by using a calcium carbonate filler of bimodal particle size, e.g., a mean of 2 microns and a mean of 5 microns, and a polysiloxane additive. The compositions are useful as food contain... | 12/24/1985 |
| 4555489 | Method for determining flow patterns in subterranean petroleum and mineral containing formations using organosulfur tracers The method for determining flow patterns within a subterranean formation penetrated by a spaced apart injection system and production system that comprises injecting into the formation at a predetermined depth from the injection system a solution containi... | 11/26/1985 |
| 4555488 | Method for determining flow patterns in subterranean petroleum and mineral containing formations using organonitrogen tracers The method for determining flow patterns within a subterranean formation penetrated by a spaced apart injection system and production system that comprises injecting into the formation at a predetermined depth from the injection system a solution containi... | 11/26/1985 |
| 4551514 | Biaxially oriented films of butene-1 homopolymer and copolymers A process for making a film of butene-1 homopolymer and copolymers of improved strength and clarity and the film made thereby. Such a film is produced by quenching an extruded poly(butene-1) homopolymer or copolymer while in the amorphous state, preferabl... | 11/05/1985 |
| 4535129 | High impact graft copolymers of methyl ethenyl benzene on rubber backbone High impact graft copolymers made from a rubber backbone and having multiple branches of polymeric methyl ethenyl benzene grafted to the backbone are disclosed in which the methyl ethenyl benzene comprises an isomer mixture high in the para-isomer, e.g., ... | 08/13/1985 |
| 4533509 | Low coefficient of friction film structure and method of forming the same The invention relates to a composite oriented structure having at least one thin surface layer containing highly subdivided inorganic material in an antiblock and coefficient of friction reducing proportion, said thin layer being formed simultaneously or ... | 08/06/1985 |
| 4524184 | Impact polymer composition A polymer composition of polyparamethylstyrene and styrene-butadiene block copolymer. The polyparamethylstyrene has a molecular weight of about 50k-400k. The styrene-butadiene block copolymer has a weight average molecular weight of about 50k-250k, and is... | 06/18/1985 |
| 4521547 | Highly flame resistant rigid urethane-isocyanurate foam compositions Highly flame resistant rigid urethane-isocyanurate foams which meet the German B-1 rating are prepared from compositions containing blowing agent, polyester polyol derived from the residue of dimethyl terephthalate or terephthalic acid production, a phosp... | 06/04/1985 |
| 4510641 | Scrubbing pad A scrubbing pad having an elongated flattened body with opposed major surfaces of different textures such as steel wool and reticulated foam. The pad has an interior pocket, accessible through a peripheral opening, which is lined with a netting of plastic... | 04/16/1985 |
| 4507435 | Blends of polyvinyl chloride and copolymers containing para-methyl styrene and acrylonitrile having improved clarity The clarity of blends of polyvinyl chloride (PVC) and acrylonitrile-butadiene-styrene graft copolymer (ABS) is improved by the use of a para-methyl styrene-acrylonitrile copolymer (PMS-AN) as an additive or by substituting acrylonitrile-butadiene-para-met... | 03/26/1985 |
| 4505962 | Microwavable plastic containers with heat and grease resistant layer comprising impact polymer Multi-layer containers comprising an exterior layer of foamed or unfoamed polystyrene or poly(para-methylstyrene) which is not resistant to hot fat under microwave cooking conditions and an interior layer of 5 mils or less of an impact copolymer of at lea... | 03/19/1985 |
| 4505961 | Microwavable heat and grease resistant containers and method for their preparation Multi-layer containers are rendered resistant to hot fats under microwave conditions by coating the substrate which is not fat resistant with a cellulose ester layer such as cellulose acetate propionate.... | 03/19/1985 |
| 4497883 | Battery having cathode of sheet loaded with graphite and carbon sheet anode Rechargeable secondary battery comprising a cathode of a sheet loaded with graphite, an anode of a sheet containing high surface area carbon, and an electrolyte. The sheets can be prepared using a binder such as paper pulp and can be formed on paper makin... | 02/05/1985 |
| 4488602 | Process for emulsion flooding of petroleum reservoirs A process for emulsion flooding of petroleum reservoirs comprising injecting a thermodynamically stable microemulsion consisting of oil, a non-ionic surfactant and water which optionally contains salts dissolved in any desired concentrations, into an inje... | 12/18/1984 |
| 4486574 | Polymers of methyl ethenyl benzene Polymers of methyl styrene produced from an isomer mixture having a high content of the para-isomer are halogenated, sulfonated or subjected to other substitution reactions.... | 12/04/1984 |
| 4485217 | Method for reducing shrinkage of injection molded linear low density polyethylene Shrinkage following injection molding of linear low density polyethylene, e.g. copolymers of ethylene and butene, is reduced by intimately blending high pressure low density polyethylene in minor amounts, e.g. 3 to 50 weight percent of the polymers.... | 11/27/1984 |
| 4480073 | Thermoplastic composition containing a poly(methyl ethenyl benzene) resin and a poly(phenylene oxide) resin Thermoplastic blends having superior capability and homogeneity comprising a poly(phenylene oxide) resin and a resin of poly(methyl ethenyl benzene) isomers in which the predominant isomer is 1-methyl-4-ethenyl benzene, are disclosed. The poly(phenylene o... | 10/30/1984 |
