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7625953 |
Method and plant for the manufacture of polymer particles
The method for the manufacture of foamed or foamable polymer particles employs a mixture of a polymer melt and a recycled polymer melt produced from recycled, propellant-containing polymer...
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7612119 |
Expandable vinylaromatic polymers and process for their preparation
Expandable vinylaromatic polymers which comprise: a) a matrix obtained by polymerizing 50-100% by weight of one or more vinylaromatic monomers and 0-50% by weight of a copolymerizable monomer; b)...
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7606671 |
Method of quantifying paint and bodywork on automobiles and other painted objects using coating thickness gauges
A method is disclosed for a test and data retrieval method that not only provides an illustration of an object paint condition but also provides a linear numerical data point, that gives the user a...
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7579384 |
Expanded molded article having voids
An expanded molded article having a void percentage of 5 to 50%, the molded article comprising 50 to 800 parts by weight of styrene-based resin relative to 100 parts by weight of non-crosslinked...
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7579072 |
Substrate accommodating tray
A substrate, for example, a display glass substrate, can be transported and stored with high efficiency, without breaking and adhering dust. A substrate accommodating tray includes a frame member ...
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7566498 |
Thermo-expansive microcapsule, production process of expanded product and expanded product thereof
Thermo-expansive microcapsule comprising: a polymeric shell produced by polymerizing 15 to 75 weight % of a nitrile monomer, 10 to 65 weight % of a monomer having a carboxyl group, 0.1 to 20 weight...
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7550521 |
Toughening of thermosets
A method of manufacturing thermosets such as epoxy resins includes adding expandable hollow microspheres, which expand with temperature as shown in the accompanying graph, to the base thermoset...
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7531116 |
Process of producing foamed molding from expanded polypropylene resin beads
A process of producing a foamed molding, wherein expanded, substantially non-crosslinked polypropylene-based resin beads are heated in a mold to fuse-bond the beads together into a unitary body....
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7494544 |
Polymer shell encapsulated gas as a cement expansion additive
Cement compositions containing an expandable material are disclosed. The compositions are suitable for use in oil and gas wells. An example of such an expandable material is a polymer encapsulated...
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7456227 |
Polymer particles and related articles
Process for preparing polymer, e.g. polystyrene, particles that may not or may contain a water-retaining agent and that require only a one-step process for incorporating the water-retaining agent....
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7378453 |
Surface crosslinking treatment method of water-absorbing resin powder
A surface crosslinking treatment method of a water-absorbing resin powder is disclosed that can overcome various problems in production encountered in the production of surface crosslinked...
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7358280 |
Process for processing expandable polymer particles and foam article thereof
Process for processing expandable polymer particles e.g. polystyrene (EPS) that eliminates the maturing step between the pre-expander and molding steps. The expandable particles are first over...
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7351752 |
Thermo-expansive microspheres, their production process and their application
The present invention provides thermo-expansive microspheres comprising thermoplastic resinous shell and a blowing agent being encapsulated in the shell, the blowing agent which is a...
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7323540 |
Process for preparing microrods using liquid-liquid dispersion
The invention provides a method for forming polymer microrods, the method including the steps of providing a polymer solution comprising a polymer dissolved in a first solvent; providing a...
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7300960 |
Expandable polypropylene resin particle and molded object obtained therefrom by in-mold molding
A specific relationship must be met in case of:
(a) a structural unit derived from propylene is present in 100 to 85 mole %, and a structural unit derived from ethylene and/or alpha-olefin...
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7294655 |
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...
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7279504 |
Expandable vinylaromatic polymers and process for their preparation
Expandable vinylaromatic polymers which comprise: a) a matrix obtained by polymerizing 50-100% by weight of one or more vinylaromatic monomers and 0.50% by weight of a copolymerizable monomer; b)...
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7271202 |
Reactive hot melt adhesive
The invention is a reactive hot melt composition which has excellent adhesion and curing properties, and can be formulated into free-flowing pellets or beads, by using an ethylene-acrylic acid...
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7259189 |
Expanded polypropylene resin beads and process for the production thereof
A process for the production of expanded beads, including kneading a base resin containing a polypropylene resin and having a tensile modulus of at least 1,200 MPa together with a mixture of a...
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7252882 |
Thermally foamable microsphere and production process thereof
The invention provides a thermally foamable microsphere whose shell is formed of a polymer that is obtained by the polymerization of a polymerizable monomer and a crosslinkable monomer at a...
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7241816 |
Expandable styrene resin particles, expandable beads, and foamed article
A process of producing expandable styrene resin particles, wherein in suspension polymerization of styrene monomers, the concentration of oxygen in a reaction vessel is kept low at least in a late...
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7202284 |
Foamed thermoplastic polyurethanes
Process for the preparation of foamed thermoplastic polyurethanes characterized in that the foaming of the thermoplastic polyurethane is carried out in the presence of thermally expandable...
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7198844 |
Microporous polymeric resin containing stabilizers and method for making thereof
Microporous particles for stabilizing thermoplastic compositions comprising comprising a stabilizer are provided. Each of the porous microparticles has a plurality of preformed pores into which the...
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7153890 |
Porous resin bead production method
The present invention provides, as a resin bead which can be developed for use completely different from the use of conventional polystyrene resin beads, a porous resin bead made from a...
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7132485 |
Dosing of peroxide to a suspension process wherein styrene is polymerized
The invention relates to a suspension polymerization process for the preparation of styrene-containing (co)polymers, wherein the process comprises the steps of continuously or semi-continuously...
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7091253 |
Water-absorbent resin, hydropolymer, process for producing them, and uses of them
The present invention provides a production process by which a water-absorbent resin of excellent quality can be obtained at a low cost by reasonable steps in aqueous solution polymerization. The...
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7067030 |
Heat-peelable adhesive sheet
A heat-peelable adhesive sheet which comprises a substrate and, formed on at least one side thereof, a heat-expandable layer containing heat-expandable microspheres and an adhesive layer comprising...
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7022745 |
Process for forming solid pressure sensitive adhesive polymer microspheres
In forming pressure sensitive adhesive microspheres by copolymerizing a non-ionic monomer of an alkyl acrylate or alkyl methacrylate ester of a non-tertiary alcohol and an acid monomer...
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6984347 |
Thermo-expansive microcapsules and their application
Thermo-expansive microcapsules comprising a shell of a polymer produced by polymerizing a mixture of monomers, which comprises (I) a nitrile monomer, (II) a monomer having an unsaturated double...
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6956067 |
Expanded polypropylene resin bead and process of producing same
Expanded, substantially non-crosslinked polypropylene resin beads capable of producing a high rigidity foamed molding at a relatively low temperature. The beads are produced by a process including...
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6943223 |
Controlled shear and turbulence flow pattern within a liquid in a vessel
The present invention provides a process to create without mechanical agitation a zone of low shear, low turbulence flow pattern within a continuous liquid phase contained in a vessel and...
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6903143 |
Process for producing thermo-expansive microcapsules
A process for producing thermo-expansive microcapsules wherein a polymerizing mixture containing ethylenic unsaturated monomer and a blowing agent is suspend-polymerized to microencapsulate the...
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6841106 |
Foamed polyester resin molding and process for producing the same
The invention provides a method for producing a foamed article comprising the steps of: heating a mixture comprising (a) 100 parts by weight of linear saturated polyester, (b) 0.1 to 10 parts by...
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6838488 |
Production method of foamed polypropylene resin beads
A method for producing expanded polypropylene resin particles wherein polypropylene resin particles impregnated with a physical blowing agent are heated along with an aqueous medium and a...
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6803495 |
Polyurethane foam composition and method of manufacture thereof
An open-celled polyurethane foam formed from a composition comprising an active hydrogen-containing component, an organic polyisocyanate component having an average isocyanate functionality of 2.00...
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6800669 |
Propylene copolymer foams
A foam comprising a propylene copolymer material comprising at least 50 weight percent of units derived from propylene, based on the total propylene copolymer material, and units derived from...
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6797734 |
Polypropylene resin pre-expanded particle and in-mold expanded article thereof
The present invention provides polypropylene resin pre-expanded particles having small fluctuation in cell diameter and expansion ratio compared to in the past. The pre-expanded particles are...
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6784215 |
Production process of non-flying plastic mircoballoons
Non-flying plastic microballoons are produced by bringing unexpanded, expandable plastic microballoons, which have been heated to a temperature lower than an expansion starting temperature thereof,...
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6783710 |
Method for the production of expandable plastics granulate
Apparatus and method for the production of expandable plastics granulate (C). A plastics melt (A′) is impregnated by a fluid blowing agent (B), which is, at an elevated pressure within a...
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6770681 |
Foamable copolymer resin and a method for preparing the same
The application relates to a foamable copolymer resin and a process for preparing the same, which comprises firstly adding an organic peroxide initiator, a modifying aid and a foaming agent to a...
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6743846 |
Preparation of flame retardant expandable poly(arylene ether)/polystyrene compositions
A non-halogenated, fire retardant, expandable poly (arylene ether)/polystyrene blends is produced by the method comprising, in a first step, forming a fire retardant mixture comprising a...
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6716894 |
Water-absorbent resin powder and its production process and uses
The present invention provides: a water-absorbent resin powder, which includes no fine metallic foreign substance, and in which the deterioration is suppressed; its production process; and uses....
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6710130 |
Propylene polymer composition and its foam moldings
A propylene polymer composition of high melt tension, which is especially favorable for foam moldings of uniform thickness, and foam moldings thereof having a uniform thickness, are obtained by...
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6710094 |
Processes for preparing patterns for use in metal castings
The present invention is directed to processes for forming styrenic polymers, and their related end uses. In particular, the present invention is directed to processes for preparing patterns for...
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6689465 |
Porous beads and process for producing the same
Disclosed is substantially spherical porous beads of an aromatic polyether ketone resin, which have an average particle diameter of 50 to 5,000 μm and a porosity of 40 to 99%. Also disclosed is a...
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6686400 |
Foamed and expanded beads of polyester-based resin and foam molding obtained therefrom
Foamed and expanded beads including a polyester-based resin containing at least 35 mole % of an aliphatic ester component. The foamed beads have a gel fraction of at least 5 % by weight and...
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6677040 |
Expanded polypropylene particles
The invention relates to expanded polypropylene beads having a density of from 5 to 200 g/l and a bead diameter of from 1 to 10 mm which comprise from 0.002 to 20% by weight of graphite particles.
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6673847 |
Water immiscible porogen removal process
The present invention relates to a method of removing water immiscible porogens from macroreticular copolymers comprising distilling said porogen in water soluble organic solvent.
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6673451 |
Process for forming an aqueous polymeric dispersion
A process for forming certain aqueous polymeric dispersions including a first emulsion polymer having an average particle diameter of 150 to 3000 nanometers and a second emulsion polymer having an...
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6638984 |
Microcellular foams, their method of production, and uses and products thereof
The present invention is directed to thermo-expandable microspheres and to the expanded microballoons, microcellular foam or foamed composite material that results upon heating the microspheres....
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