NOVA CHEMICALS INC. Patent applications |
Patent application number | Title | Published |
20140072674 | LEAK-PROOF CONTAINERS, MADE FROM EXPANDABLE THERMOPLASTIC RESIN BEADS - This invention discloses a leak proof disposable container, comprising of a bottom portion composed of expandable thermoplastic resin beads and a lidding film, for containing non-carbonated drinks or food products that do not require heating prior to consumption. The inventive container eliminates the use of polypropylene and polystyrene snap-on lids currently used for cups and containers. The snap-on lid is replaced with a thermoplastic lidding film, a leak proof seal is formed between the lidding film and upper flange of the bottom portion. Replacement of the snap-on lid with lidding film, reduces the weight of the disposable lidding material by 74 percent. Through the appropriate selection of materials, one can produce a leak proof container that is 100 percent recyclable under the #6 PS (polystyrene) symbol. | 03-13-2014 |
20130149922 | SPORTSBOARD STRUCTURES - A sports board that includes an elongate, water impervious, thermoplastic foam core having an upper surface and an under surface; an upper layer covering at least a portion of the upper surface; and an under layer covering at least a portion of the under surface. The foam core is made of a foamed material having a water absorption (measured according to ASTM C-272) of less than 2 volume percent. | 06-13-2013 |
20120309859 | INTERPOLYMER RESIN PARTICLES - Interpolymer resin particles that include from about 20% to about 60% by weight based on the weight of the particles of uncross-linked polyolefin resin particles having a VICAT softening temperature greater than 85° C. and from about 40% to about 80% by weight based on the weight of the interpolymer particles of polymerized vinyl aromatic monomer composition particles that have been polymerized in the uncross-linked polyolefin resin particles to form an interpenetrating network of polyolefin resin particles and polystyrene particles. The interpolymer resin particles have a gel content ranging from about 0 to about 1.5% by weight based on the weight of the interpolymer resin particles, a VICAT softening temperature ranging from about 90° C. to about 115° C., and a melt index value ranging from about 0.2 to about 35.0 g/10 minutes (Condition G). | 12-06-2012 |
20120219814 | Methods of Improving Polyethylene Stretch Films - Methods of improving polyethylene stretch film that include providing interpolymer resin particles, forming a polyethylene blend composition by blending from about 0.1 to about 10 percent by weight based on the weight of the blend composition of interpolymer resin particles into one or more polyethylene resins; and forming a film from the polyethylene blend composition. The interpolymer resin particles contain a styrenic polymer intercalated within a first polyolefin, where the first polyolefin is present at from about 20% to about 80% by weight based on the weight of the particles, and the styrenic polymer is present at from about 20% to about 80% by weight based on the weight of the particles. | 08-30-2012 |
20120219813 | Films Containing Blends of Polyolefins and Polyolefin/Polystyrene Interpolymer Particles - A film containing a polymer composition that includes from 0.1 to 60% by weight of interpolymer resin particles containing a styrenic polymer intercalated within a first polyolefin and from 40 to 99.9% by weight of at least one second polyolefin. The first polyolefin is present at from 20% to 80% by weight based on the weight of the particles, has a VICAT softening temperature greater than 60° C. and a melt index of from 0.3 to 15 g/10 minutes (Condition I, 190° C., 2.16 kg). The styrenic polymer is present at from 20% to 80% by weight based on the weight of the particles. The interpolymer resin particles have a gel content ranging from 0 to 5% by weight based on the weight of said interpolymer resin particles, a VICAT softening temperature ranging from 85° C. to 115° C., and a melt index value ranging from 0.1 to 6.0 (Condition I). | 08-30-2012 |
20120219776 | Multilayer Films Containing Polyolefin-Interpolymer Resin Particle Blends - A multilayer film that includes at least three layers and is made up of a first layer, a second layer and a third layer, where the first layer is in between the second and third layers. The first layer contains a blend of a second polyolefin and interpolymer resin particles that include a styrenic polymer intercalated within a first polyolefin. The second layer directly contacts a surface of the first layer and includes a first thermoplastic resin. The third layer directly contacts a second surface of the first layer and includes a second thermoplastic resin. The first thermoplastic resin and second thermoplastic resin can be the same or different. | 08-30-2012 |
20120217682 | Methods of Improving the Physical Properties of Polyolefin Films - Methods of improving the physical properties of a polyolefin film that include providing interpolymer resin particles, forming a blend composition by blending from about 0.1 to about 25% by weight based on the weight of the blend composition of interpolymer resin particles into a second polyolefin; and forming a film from the blend composition. The interpolymer resin particles are made up a styrenic polymer intercalated within a first polyolefin. The first polyolefin is present at from about 20% to about 80% by weight based on the weight of the particles and the styrenic polymer is present at from about 20% to about 80% by weight based on the weight of the particles. | 08-30-2012 |
20120035313 | METHOD OF IMPROVING THE BUBBLE STABILITY OF A BLOWN FILM OF A THERMOPLASTIC RESIN - A method of modifying the rheology of a thermoplastic resin that includes the steps of providing a thermoplastic resin and blending interpolymer resin particles with the thermoplastic resin. The interpolymer resin contains a styrenic polymer intercalated within a polyolefin, such that the thermoplastic resin is present as a continuous phase and the interpolymer resin is present as a dispersed phase. The method provides a rheology modified thermoplastic resin with improved physical characteristics. | 02-09-2012 |
20120021238 | INTERPOLYMER RESIN PARTICLES - A polymer composition that includes from 0.1 to 60 percent by weight of interpolymer resin particles containing a styrenic polymer intercalated within a polyolefin and from 40 to 99.9 percent by weight of at least one second polymer. The polyolefin is present at from 20% to 80% by weight based on the weight of the particles, has a VICAT softening temperature greater than 60° C. and a melt index of from 0.3 to 15 g/10 minutes (190° C./2.16 kg). The styrenic polymer is present at from 20% to 80% by weight based on the weight of the particles. The interpolymer resin particles have a gel content ranging from 0 to 5% by weight based on the weight of said interpolymer resin particles, a VICAT softening temperature ranging from 85° C. to 115° C., and a melt index value ranging from 0.1 to 6.0 (230° C./5.0 kg). | 01-26-2012 |
20110214391 | LIGHTWEIGHT COMPOSITIONS AND ARTICLES CONTAINING SUCH - A lightweight cementitious composition containing from 22 to 90 volume percent of a cement composition and from 10 to 78 volume percent of particles having an average particle diameter of from 0.2 mm to 8 mm, a bulk density of from 0.03 g/cc to 0.64 g/cc, an aspect ratio of from 1 to 3, where after the lightweight cementitious composition is set it has a compressive strength of at least 1700 psi as tested according to ASTM C39. The cementitious composition can be used to make concrete masonry units, construction panels, road beds and other articles and can be included as a layer on wall panels and floor panels and can be used in insulated concrete forms. Aspects of the lightweight cementitious composition can be used to make lightweight structural units. | 09-08-2011 |
20110144220 | INTERPOLYMER RESIN PARTICLES - Interpolymer resin particles comprised of 20% to 60% by weight of uncross-linked polyolefin e.g. polyethylene, polypropylene, and from 40% to 80% by weight based on the weight of the particles of a vinyl aromatic monomer, e.g. styrene, that is polymerized in a suspension process to form an interpenetrating network of polyolefin with polymerized vinyl aromatic monomer particles and having a gel content of 0 to 1.5% by weight based on the weight of the particles for improved processability in end-use applications and improved ESCR properties. The interpolymer resin particles have a VICAT softening temperature from about 90° C. to about 115° C., and a melt index from 0.2 to 35.0 g/10 minutes (Condition G). The particles can be mixed with a blowing agent to form extruded foam articles, such as foam board, and can be used in extrusion, injection molding, rotomolding, and thermoforming processes to form a layer, e.g. sheet, film, and as a tie layer in multi-layer structures to bind adjacent layers consisting of incompatible polymers, i.e. polystyrene and polyethylene for improved rigidity in multi-layer structures. | 06-16-2011 |
20110138725 | COMPOSITE PRE-FORMED CONSTRUCTION ARTICLES - A composite building panel that includes a central body, substantially parallelepipedic in shape, containing an expanded polymer matrix, having opposite faces, a top surface, and a bottom surface; at least one embedded framing stud longitudinally extending across the central body between the opposite faces, having a first end embedded in the expanded polymer matrix, a second end extending away from the bottom surface of the central body, and one or more expansion holes in the embedded studs between the first end of the embedded stud and bottom surface through which the polymer matrix expands. A concrete layer can optionally cover a portion of the top surface and/or bottom surface. The building panel can be positioned perpendicular to a structural wall and/or foundation to provide a floor panel. The second end of the framing studs can be embedded in a second central body to provide an insulated concrete form. | 06-16-2011 |
20110109004 | COATING COMPOSITION FOR THERMOPLASTIC RESIN PARTICLES FOR FORMING FOAM CONTAINERS - Expandable or pre-expanded thermoplastic particles, e.g. polystyrene particles, used to form foam containers e.g. cups, bowls, are coated with a coating composition comprising a liquid part consisting of a) liquid polyethylene glycol with an average molecular weight of 200 to 800; and a solid part comprising components selected from the group consisting of b) polyolefin wax, e.g. polyethylene wax, c) a metal salt of higher fatty acids, e.g. zinc stearate or calcium stearate; d) polyethylene glycol with an average molecular weight of 900 to 10,000; and e) a fatty bisamide or fatty amide, e.g. ethylene bis-stearamide; and combinations of b) through e). The coating composition prevents or resists leakage of liquids and foods with oil and/or fatty components and improves the rim strength and ATF properties of foam containers. | 05-12-2011 |
20110003904 | Lightweight Concrete Compositions - A lightweight ready-mix concrete composition that contains 8-20 volume percent cement, 11-50 volume percent sand, 10-31 volume percent prepuff particles, 9-40 volume percent coarse aggregate, and 10-22 volume percent water, where the sum of components used does not exceed 100 volume percent;. The prepuff particles have an average particle diameter of from 0.2 mm to 8 mm, a bulk density of from 0.02 g/cc to 0.64 g/cc, an aspect ratio of from 1 to 3. The slump value of the composition measured according to ASTM C 143 is from 2 to 8 inches. After the lightweight ready-mix concrete composition is set for 28 days, it has a compressive strength of at least 1400 psi as tested according to ASTM C39. | 01-06-2011 |
20100331474 | METHOD OF MODIFYING THE RHEOLOGY OF A THERMOPLASTIC RESIN - A method of modifying the rheology of a thermoplastic resin that includes the steps of providing a thermoplastic resin and blending interpolymer resin particles with the thermoplastic resin. The interpolymer resin contains a styrenic polymer intercalated within a polyolefin, such that the thermoplastic resin is present as a continuous phase and the interpolymer resin is present as a dispersed phase. The method provides a rheology modified thermoplastic resin with improved physical characteristics. | 12-30-2010 |
20100308486 | COATING COMPOSITION FOR THERMOPLASTIC RESIN PARTICLES FOR FORMING FOAM CONTAINERS - Expandable or pre-expanded thermoplastic particles, e.g. polystyrene particles, used to form foam containers e.g. cups, bowls, are coated with a coating composition comprising a liquid part consisting of a) liquid polyethylene glycol with an average molecular weight of 200 to 800; and a solid part comprising components selected from the group consisting of b) polyolefin wax, e.g. polyethylene wax, c) a metal salt of higher fatty acids, e.g. zinc stearate or calcium stearate; d) polyethylene glycol with an average molecular weight of 900 to 10,000; and e) a fatty bisamide or fatty amide, e.g. ethylene bis-stearamide; and combinations of b) through e). The coating composition prevents or resists leakage of liquids and foods with oil and/or fatty components and improves the rim strength and ATF properties of foam containers. | 12-09-2010 |
20100304075 | ENHANCED EXPANDED POLYSTYRENE FOAM INSULATION - Partially expanded closed-cell unmatured polystyrene bead with a partial vacuum within the cells inside the bead, which may be coated with an air impervious coating to retain a partial vacuum inside cells for a prolonged period of time. The resulting bead has improved thermal insulating properties and may be used for insulation. | 12-02-2010 |
20100273902 | DURABLE CONCRETE COMPOSITIONS - Methods of controlling the durability of and/or the amount of air in concrete formulations that include combining cement, water, and optionally aggregates, admixtures and/or additives to form a cement mixture; and adding prepuff particles to the cement mixture to form a concrete formulation. The prepuff particles have an average particle diameter of from 0.2 mm to 3 mm, a bulk density of from 0.015 g/cc to 0.35 g/cc, an aspect ratio of from 1 to 3, and a smooth continuous outer surface. The cured and hardened concrete formulation typically has a relative dynamic modulus of at least 70% determined according to Procedure A of ASTM C666 (2003). The amount of air in the concrete typically increases over the amount of air in similar formulations not containing prepuff particles, as determined according to ASTM C231, based on the volume percent of prepuff. The concrete formulations can be used to make articles. | 10-28-2010 |
20100213631 | COATING COMPOSITION FOR THERMOPLASTIC RESIN PARTICLES FOR FORMING FOAM CONTAINERS - Expandable or pre-expanded thermoplastic particles, e.g. polystyrene particles, used to form foam containers e.g. cups, bowls, are coated with a coating composition comprising a liquid part consisting of a) liquid polyethylene glycol with an average molecular weight of 200 to 800; and a solid part comprising components selected from the group consisting of b) polyolefin wax, e.g. polyethylene wax, c) a metal salt of higher fatty acids, e.g. zinc stearate or calcium stearate; d) polyethylene glycol with an average molecular weight of 900 to 10,000; and e) a fatty bisamide or fatty amide, e.g. ethylene bis-stearamide; and combinations of b) through e). The coating composition prevents or resists leakage of liquids and foods with oil and/or fatty components and improves the rim strength and ATF properties of foam containers. | 08-26-2010 |
20100197818 | METHOD OF MAKING CONCRETE - A method of preparing a light weight concrete composition using expanded polymer particles that includes a) replacing from about 10 to about 50 volume percent of the coarse aggregate in the concrete composition with prepuff particles; and b) preparing the concrete composition by combining ingredients comprising 3-40 volume percent cement, 1-50 volume percent fine aggregate, 0-40 volume percent coarse aggregate, 10-22 volume percent water, and 5-40 volume percent of prepuff particles. The prepuff particles have an average particle diameter of from 0.2 mm to 5 mm, a bulk density of from 0.02 g/cc to 0.56 g/cc, an aspect ratio of from 1 to 3. The concrete composition has a density of from about 90 to about 135 lb./ft | 08-05-2010 |
20100098524 | LIGHTWEIGHT CONCRETE COMPOSITIONS - A lightweight ready-mix concrete composition that contains 8-20 volume percent cement, 11-50 volume percent sand, 10-31 volume percent prepuff particles, 9-40 volume percent coarse aggregate, and 10-22 volume percent water, where the sum of components used does not exceed 100 volume percent;. The prepuff particles have an average particle diameter of from 0.2 mm to 8 mm, a bulk density of from 0.02 g/cc to 0.64 g/cc, an aspect ratio of from 1 to 3. The slump value of the composition measured according to ASTM C 143 is from 2 to 8 inches. After the lightweight ready-mix concrete composition is set for 28 days, it has a compressive strength of at least 1400 psi as tested according to ASTM C39. | 04-22-2010 |
20100088984 | LIGHTWEIGHT COMPOSITIONS AND ARTICLES CONTAINING SUCH - A lightweight cementitious composition containing from 22 to 90 volume percent of a cement composition and from 10 to 78 volume percent of particles having an average particle diameter of from 0.2 mm to 8 mm, a bulk density of from 0.03 g/cc to 0.64 g/cc, an aspect ratio of from 1 to 3, where after the lightweight cementitious composition is set it has a compressive strength of at least 1700 psi as tested according to ASTM C39. The cementitious composition can be used to make concrete masonry units, construction panels, road beds and other articles and can be included as a layer on wall panels and floor panels and can be used in insulated concrete forms. Aspects of the lightweight cementitious composition can be used to make lightweight structural units. | 04-15-2010 |
20100064943 | LIGHTWEIGHT CONCRETE COMPOSITIONS - A lightweight concrete composition containing from 10 to 90 volume percent of a cement composition, from 10 to 90 volume percent of particles having an average particle diameter of from 0.2 mm to 8 mm, a bulk density of from 0.03 g/cc to 0.64 g/cc, an aspect ratio of from 1 to 3, and from 0 to 50 volume percent of aggregate; where the sum of components used does not exceed 100 volume percent, and where after the lightweight concrete composition is set it has a compressive strength of at least 1700 psi as tested according to ASTM C39 after seven days. The concrete composition can be used to make concrete masonry units, construction panels, road beds and other articles. | 03-18-2010 |
20100056653 | EXPANDABLE RESINS - Resin beads having an average particle size of from 0.001 mm to 10 mm and containing a continuous phase and a particulate dispersed phase are described. The continuous phase includes elastomeric polymers; the dispersed phase includes homopolymers and/or copolymers containing repeat units resulting from the polymerization of one or more aryl polymerizable monomers. The unexpanded polymer resin beads can be prepared by dispersing an organic phase containing elastomeric polymers and one or more monomers, into droplets and polymerizing the monomers in the organic droplets in a low shear flow pattern. The beads can be impregnated with blowing agents, expanded and can be used to make molded articles. Resin beads having a continuous phase comprising a nitrile rubber, and a dispersed phase comprising one or more homopolymers and/or copolymers containing repeat units resulting form the polymerization of one or more aryl polymerizable show prolonged retention of blowing agents in unexpanded form. | 03-04-2010 |
20100048752 | CROSSLINKED POLYMER COMPOSITION - A polymer composition that includes a first polyolefin polymer and an interpenetrating network polymer. The interpenetrating network polymer includes a second polyolefin polymer present in an amount of from 10 percent by weight to 80 percent by weight, based on total weight of the interpenetrating network polymer, and a vinyl aromatic polymer present in an amount of from 20 percent by weight to 90 percent by weight, based on total weight of the interpenetrating network polymer. As initially provided in the polymer composition, the interpenetrating network polymer is substantially free of crosslinking. The polymer composition itself is at least partially crosslinked. An expandable polymer composition is provided that includes the polymer composition and an expansion agent, which can be expanded to form an expanded polymer composition that can have a density of from 16 to 400 Kg/m | 02-25-2010 |
20100047496 | LABELED CONTAINERS, METHODS AND DEVICES FOR MAKING SAME - A device and method for producing labeled expanded resin containers; the method including applying a label sheet, formed from a label material capable of maintaining an electrostatic charge, to an inner wall of female portions of two-part molds, positioning one or more male portions of the two-part molds in contact with the corresponding female portions to form one or more mold cavities; adding expandable resin beads or pre-expanded resin beads to the mold cavities; applying a sufficient amount of heat for a sufficient length of time to the mold cavities to effect expansion of the expandable resin beads or pre-expanded resin beads to form labeled containers; cooling the labeled containers; and removing the labeled containers from the mold cavities. The labels on the external wall of the labeled containers present a smooth circumferential surface. | 02-25-2010 |
20090313914 | FOOTER CLEAT FOR INSULATING CONCRETE FORM - Methods of constructing concrete walls that include placing a plurality of cleats along a wall perimeter, securing the cleats to a surface under the wall perimeter, placing a plurality of insulating concrete forms along the perimeter, and placing concrete into the insulating concrete forms to form the insulating concrete wall. The cleats include a base plate, a first vertical flange extending approximately perpendicular from the base plate, and a second vertical flange extending approximately parallel to the first vertical flange. The space defined by the first vertical flange, second vertical flange and the base plate, is adapted to receive a bottom portion of a form component or a bottom portion of a form. The insulating concrete forms are placed along the perimeter such that a bottom portion of the form components or a bottom portion of the form are press fit into the defined space. | 12-24-2009 |
20090203808 | EXPANDABLE PARTICULATE POLYMER COMPOSITION - An expandable particulate interpenetrating network polymer composition that includes as an expansion agent pentafluorobutane and optionally a minor amount of heptafluoropropane is described. The expandable particulate interpenetrating network polymer, more particularly, includes a particulate interpenetrating network polymer that includes: (i) a polyolefin polymer present in an amount of from 10 percent by weight to 80 percent by weight; and (ii) a vinyl aromatic polymer present in an amount of from 20 percent by weight to 90 percent by weight, in each case based on total weight of the particulate interpenetrating network polymer. The expansion agent resides (or is impregnated) within the particulate interpenetrating network polymer. The pentafluorobutane may be 1,1,1,3,3-pentafluorobutane, and the heptafluoropropane may be 1,1,1,2,3,3,3-heptafluoropropane. In an embodiment, the expansion agent consists of 1,1,1,3,3-pentafluorobutane, and is substantially free of any other expansion agents. The expandable particulate interpenetrating network polymer compositions of the present invention have improved expansion agent retention values, relative to comparative expandable particulate interpenetrating network polymer compositions (e.g., containing isopentane as an expansion agent). | 08-13-2009 |
20090202307 | METHOD OF CONSTRUCTING AN INSULATED SHALLOW PIER FOUNDATION BUILDING - A method of constructing a shallow pier foundation building that includes a) placing a plurality of insulating pier forms along a perimeter of the building; b) placing a plurality of insulating concrete forms between the insulating piers to form a continuous insulating surface to the surrounding soil and a continuous forming surface to provide a slab form; c) placing a concrete composition in the insulating piers and insulating concrete forms and allowing the concrete composition to cure and harden; and d) placing a concrete slab composition in the slab form and allowing the concrete composition to cure and harden. | 08-13-2009 |
20090162588 | LABELED CONTAINERS MADE FROM EXPANDABLE THERMOPLASTIC MATERIALS HAVING IMPROVED PHYSICAL PROPERTIES - Labeled thin-wall containers molded from pre-expanded expandable thermoplastic particles having a label disposed over at least a portion of the outer surface of the container. The particles are coated with a composition that includes at least 2,500 ppm of a salt of a C | 06-25-2009 |
20090139911 | METHOD OF DETECTING DEFECTIVE CONTAINERS - Methods for identifying defective containers that include a) providing a container having an open rim end, a closed base end, an exterior surface and an interior surface; b) directing one or more sources of electromagnetic radiation toward the exterior surface or interior surface of the container; c) positioning one or more sensors for the electromagnetic radiation opposite the exterior or interior surface not directed to in b); d) accepting the container if the amount of electromagnetic radiation detected by the one or more sensors is within a predetermined range; and e) rejecting the container if the amount of electro-magnetic radiation is not within the predetermined range. The methods can be used in devices that contain a) conveying means for moving containers; b) means for directing sources of electromagnetic radiation; c) means for detecting electromagnetic radiation; and d) means for separating containers. | 06-04-2009 |
20090093558 | MOBILE EXPANDED POLYMER PROCESSING SYSTEMS AND METHODS - A mobile polymer system. The system includes a mobile platform and a heat generating device mounted to the mobile platform. The system also includes a polymer expansion unit mounted to the mobile platform, wherein the polymer expansion unit is adapted to expand a polymer, using heat generated by the heat generating device, at a location of the mobile polymer expansion system to create an expanded polymer that can be used to create an expanded polymeric product that is comprised of the expanded polymer. | 04-09-2009 |
20090081446 | METHOD OF PLACING CONCRETE - A method of placing a concrete compositions including a) combining 3-40 volume percent cement, 5-50 volume percent fine aggregate, 5-50 volume percent coarse aggregate, and 10-22 volume percent water; b) adding 1.5-40 volume percent of prepuff particles to form a concrete composition; and c) pumping the concrete composition to a point higher in elevation than the delivery point of the concrete to place the concrete. The concrete composition contains less than 30 volume percent of other light weighting aggregates and the prepuff particles have an average particle diameter of from 0.2 mm to 8 mm, a bulk density of from 0.02 g/cc to 0.64 g/cc, an aspect ratio of from 1 to 3. The slump value of the placed concrete measured according to ASTM C 143 is greater than 1 inch and the concrete has a density of from about 40 to about 135 lb./ft | 03-26-2009 |
20090078161 | METHODS OF MINIMIZING CONCRETE CRACKING AND SHRINKAGE - A method of reducing plastic shrinkage cracking in concrete compositions that includes a) combining 3-40 volume percent cement, 5-50 volume percent fine aggregate, 5-50 volume percent coarse aggregate, and 10-22 volume percent water to form a concrete mixture; b) during or after (a), adding 1.5-40 volume percent of prepuff particles to the concrete mixture to form a concrete composition; c) placing the concrete composition in a form; and d) allowing the concrete to set and harden to form a hardened concrete article substantially free of plastic shrinkage cracking. The prepuff particles have an average particle diameter of from 0.2 mm to 8 mm, a bulk density of from 0.02 g/cc to 0.64 g/cc, an aspect ratio of from 1 to 3. The concrete composition has a density of from about 40 to about 135 lb./ft | 03-26-2009 |
20090011667 | SPORTSBOARD STRUCTURES - A sports board that includes an elongate, water impervious, thermoplastic foam core having an upper surface and an under surface; an upper layer covering at least a portion of the upper surface; and an under layer covering at least a portion of the under surface. The foam core is made of a foamed material having a water absorption (measured according to ASTM C-272) of less than 2 volume percent. | 01-08-2009 |
20080314295 | LIGHTWEIGHT CONCRETE COMPOSITIONS - A lightweight concrete composition containing from 10 to 90 volume percent of a cement composition, from 10 to 90 volume percent of particles having an average particle diameter of from 0.2 mm to 8 mm, a bulk density of from 0.03 g/cc to 0.64 g/cc, an aspect ratio of from 1 to 3, and from 0 to 50 volume percent of aggregate; where the sum of components used does not exceed 100 volume percent, and where after the lightweight concrete composition is set it has a compressive strength of at least 1700 psi as tested according to ASTM C39 after seven days. The concrete composition can be used to make concrete masonry units, construction panels, road beds and other articles. | 12-25-2008 |
20080286551 | PLASTIC-CELLULOSIC COMPOSITE ARTICLES - Articles containing a cellulosic fiber filled thermoplastic that includes about 10% to about 99.9% by weight of a copolymer; optionally 0.1% to 30% by weight of one or more elastomeric polymers; and 0.1% to 70% by weight of one or more cellulosic fibers. The copolymer contains residues formed by polymerizing a mixture that contains i) 51% to 99.9% by weight of one or more primary monomers, ii) 0.1% to 49% by weight of one or more maleate-type monomers, and iii) optionally 1% to 25% by weight of one or more other polymerizable monomers. The article has a thickness of from 0.1 cm to 12 cm. The tensile modulus, determined according to ISO 527-2, of the cellulosic fiber filled thermoplastic is at least 2,000 MPa and the DTUL at 1.82 MPa determined according to ISO-75-2, of the cellulosic fiber filled thermoplastic can be at least 85° C. | 11-20-2008 |
20080275149 | DURABLE CONCRETE COMPOSITIONS - Methods of controlling the durability of and/or the amount of air in concrete formulations that include combining cement, water, and optionally aggregates, admixtures and/or additives to form a cement mixture; and adding prepuff particles to the cement mixture to form a concrete formulation. The prepuff particles have an average particle diameter of from 0.2 mm to 3 mm, a bulk density of from 0.015 g/cc to 0.35 g/cc, an aspect ratio of from 1 to 3, and a smooth continuous outer surface. The cured and hardened concrete formulation typically has a relative dynamic modulus of at least 70% determined according to Procedure A of ASTM C666 (2003). The amount of air in the concrete typically increases over the amount of air in similar formulations not containing prepuff particles, as determined according to ASTM C231, based on the volume percent of prepuff. The concrete formulations can be used to make articles. | 11-06-2008 |
20080269363 | Interpolymer Resin Particles - Interpolymer resin particles comprised of 20% to 60% by weight of uncross-linked polyolefin e.g. polyethylene, polypropylene, and from 40% to 80% by weight based on the weight of the particles of a vinyl aromatic monomer, e.g. styrene, that is polymerized in a suspension process to form an interpenetrating network of polyolefin with polymerized vinyl aromatic monomer particles and having a gel content of 0 to 1.5% by weight based on the weight of the particles for improved processability in end-use applications and improved ESCR properties. The interpolymer resin particles have a VICAT softening temperature from about 90° C. to about 115° C., and a melt index from 0.2 to 35.0 g/10 minutes (Condition G). The particles can be mixed with a blowing agent to form extruded foam articles, such as foam board, and can be used in extrusion, injection molding, rotomolding, and thermoforming processes to form a layer, e.g. sheet, film, and as a tie layer in multi-layer structures to bind adjacent layers consisting of incompatible polymers, i.e. polystyrene and polyethylene for improved rigidity in multi-layer structures. | 10-30-2008 |
20080250739 | FOAMED PLASTIC STRUCTURES - Foamed plastic structures that include one or more foamed plastic bodies containing a polymer matrix that includes one or more polymers formed by polymerizing a monomer mixture formed by polymerizing a monomer mixture containing vinyl aromatic monomers using a polymerization initiator having a structure corresponding to: | 10-16-2008 |
20080227891 | METHODS FOR MAKING CONCRETE COMPOSITIONS - A method of making a cementitious composition that includes combining cement, water and optionally aggregates and optionally additives to form an aqueous cement slurry; adding expanded polymer particles to the aqueous cement slurry; and forming a dispersion of expanded polymer particles in the aqueous cement slurry. The expanded polymer particles have an average particle diameter of from 200 μm to 5,000 μm, a bulk density of from 0.02 g/cc to 0.64 g/cc, and an aspect ratio of from 1 to 3. | 09-18-2008 |