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| Number | Title | Issue Date |
| 8088835 | Method for producing expansion-molded polypropylene-based resin article It is an object of the present invention to provide a method for easily and economically producing an expansion-molded polypropylene-based resin article stably with a high porosity, that has continuous voids and that can be used as materials such as a sound absorbin... | 01/03/2012 |
| 8008363 | Shoe sole component There is provided a shoe sole component that has properties such as strength and cushioning property that are suppressed from being changed even under a wide temperature range from severe cold at −10° C. or lower to high temperature conditions exceeding 30° C. A... | 08/30/2011 |
| 7981942 | Polyethylene molding powder and porous articles made therefrom The present invention relates to a new molding powder comprising polyethylene polymer particles. The molecular weight of the polyethylene polymer is within the range of from about 600,000 g/mol to about 2,700,000 g/mol as determined by ASTM 4020. The average particl... | 07/19/2011 |
| 7799841 | Polypropylene foam The present technology relates to a foam comprising a polypropylene material. The polypropylene material is produced in the presence of a metallocene catalyst, and the foam and/or the polypropylene has a branching index g′ of less than 1.00 and a strain hardening ... | 09/21/2010 |
| 7795321 | Rheology modification of interpolymers of ethylene/α-olefins and articles made therefrom Rheology modification of an ethylene/α-olefin interpolymer is achieved by blending the interpolymer with at least one branched polyolefin. The polyolefins can be homopolymers or interpolymers and have a branching index of less than 1. The ethylene/α-olefin interpo... | 09/14/2010 |
| 7601763 | Diaphragm for speaker and manufacturing method thereof A diaphragm for a speaker is made by forming acrylic foam. As the material of the acrylic foam, using maleic anhydride and methacrylic amide are contained. Thereby, the coefficient of saturated water absorption can be reduced. When the diaphragm thus manufactured is... | 10/13/2009 |
| 7435761 | Microporous polyethylene film and method of producing the same Disclosed is a microporous polyethylene film for a battery separator and a method of producing the same. The microporous polyethylene film comprises a resin mixture, which includes 100 parts by weight of composition containing 20-50 wt % polyethylene with a weight a... | 10/14/2008 |
| 7425583 | Ion exchanger A porous ion exchanger includes an open cell structure including interconnected macropores and mesopores whose average diameter is in a range of 1 to 1000 μm existing on walls of the macropores. Moreover, a total pore volume is in a range of 1 to 50 ml/g, ion excha... | 09/16/2008 |
| 7423071 | Polypropylene based resin composition, expanded moldings comprising the same and method for production thereof A polypropylene-based resin composition for injection foam molding, containing (A) 50 to 95 parts by weight of a linear polypropylene-based resin having a melt flow rate of from 10 g/10 min. to 100 g/10 min. and a melt tension of 2 cN or less and (B) 5 to 50 parts b... | 09/09/2008 |
| 7390844 | Polymer particle stabilized by dispersant and method of preparation The present invention discloses a water dispersible polymer particle stabilized by a hydrophobically capped oligomeric acrylamide dispersant. The present invention also discloses a heterogeneous method for forming polymer particles comprising providing a water immis... | 06/24/2008 |
| 7364788 | Fiber-filled molded articles Polymer molding processes, such as injection-molding processes, include use of a viscosity-reducing supercritical fluid additive resulting in less breakage of reinforcing fibers upon introduction into the mold. ... | 04/29/2008 |
| 7361693 | Low density polymer beads Low density polymeric beads made by polymerizing monomeric building blocks into large crosslinked polymer molecules in porous, spherical bead form by droplet or suspension polymerization in the presence of a porogen. ... | 04/22/2008 |
| 7361694 | Durable foam of olefin polymers, methods of making foam and articles prepared from same Olefin polymer-based, durable, open-cell foam compositions, structures and articles derived from same; methods for preparation of such foams; and use of the dry durable foams in various applications are disclosed. Further described is use of the foams and structures... | 04/22/2008 |
| 7358281 | Hollow polymer particles, aqueous dispersion thereof and production process thereof Disclosed are hollow polymer particles composed of a crosslinked polymer having a comparatively small particle diameter and a narrow particle diameter distribution, an aqueous dispersion of the particles, and an ink having good flying property. The hollow pol... | 04/15/2008 |
| 7351645 | Pressure sensitive adhesive sheet for use in semiconductor working and method for producing semiconductor chip A pressure sensitive adhesive sheet to be used in producing an extremely thin semiconductor chip which is free of breakage and discoloration by a predicing process and a method of use thereof are provided. The pressure sensitive adhesive sheet is used in a method fo... | 04/01/2008 |
| 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 fluorine-containing C2-10 compound having ether linkage, being free of c... | 04/01/2008 |
| 7332531 | Microporous high density polyethylene film Disclosed is a microporous high density polyethylene film for a battery separator and a method of producing the same. The microporous high density polyethylene film includes high density polyethylene with a weight average molecular weight of 2×105-5×10 | 02/19/2008 |
| 7323527 | Process for macroporous acrylic resins A method for producing a macroporous acrylic resin in an aqueous suspension from a C1-C4 alkyl acrylate, an organic solvent and a crosslinker. ... | 01/29/2008 |
| 7312253 | Insulating thermoplastic foams made with methyl formate-based blowing agents A blowing agent blend for making thermoplastic polymer foams comprises methyl formate. The blowing agent blend can further comprise at least one co-blowing agent. The co-blowing agent is either a physical co-blowing agent (e.g. an inorganic agent, a hydrocarbon, a h... | 12/25/2007 |
| 7307105 | Thermoplastic foams made with methyl formate-based blowing agents A blowing agent blend for making thermoplastic polymer foams comprises methyl formate. The blowing agent blend can further comprise at least one co-blowing agent. The co-blowing agent is either a physical co-blowing agent (e.g. an inorganic agent, a hydrocarbon, a h... | 12/11/2007 |
| 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 with 4 to 20 carbons is present in 0 to 15... | 11/27/2007 |
| 7291382 | Low density flexible resilient absorbent open-cell thermoplastic foam A low density, flexible, resilient, absorbent open-cell thermoplastic foam includes a combination of thermoplastic elastomer, ethylene ionomer, stiff polymer, and surfactant selected to provide various advantageous properties. The foam is useful in personal care abs... | 11/06/2007 |
| 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) 1-10% by weight, calculated with respect to the polymer (a), of an exp... | 10/09/2007 |
| 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 copolymer, and athylene-methacrylic acid copolymer, and/or an ethylene-ac... | 09/18/2007 |
| 7262226 | CTFE-based thermoprocessable compositions A thermoprocessable polymeric composition formed by ethylene/chlorotrifluoroethylene copolymers containing from 0.5 to 20% by moles of ethylene, optionally in combination with the chlorotrifluoroethylene homopolymer, wherein the composition contains in total from 90... | 08/28/2007 |
| 7238765 | High density polyethylene and insulation compositions for wire and cable High density polyethylene having reduced melt elasticity and a reduced level of highly short-chain branched polymer molecules and wire and cable insulation compositions based thereon having improved strippability and oxidative stability are provided. ... | 07/03/2007 |
| 7226955 | Macrocellular acoustic foam containing particulate additive A cellular thermoplastic polyolefin foam comprising at least one particulate additive in admixture with a polymer matrix is disclosed, along with a process and foamable gel for manufacturing the same, wherein the polyolefin matrix comprises at least one polymer resi... | 06/05/2007 |
| 7214724 | Method for cross-linking a foamable plastic A plastic is converted from an initial condition with a higher density into a foamed condition with a lower density using a blowing agent, wherein the plastic is cross-linked prior to foaming by means of a first cross-linking agent and during the foaming by means of... | 05/08/2007 |
| 7199165 | Expandable material An expandable material and articles incorporating the same are disclosed. The material includes a polymeric admixture; a blowing agent; a curing agent; a tackifier; and optionally, a filler or fiber. ... | 04/03/2007 |
| 7189763 | Crosslinked olefin elastomer foam A crosslinked olefin elastomer foam has a specific gravity of 0.05 to 0.2, an expansion ratio of 8 to 15, a compression set of 30 to 60% and a tear strength of 1.5 to 2.5 kg/cm. The crosslinked foam is obtained by heating an elastomer composition comprising a specif... | 03/13/2007 |
| 7189764 | Elastomer composition for cross-linked olefin elastomer foam A crosslinked olefin elastomer foam has a specific gravity of 0.05 to 0.2, an expansion ratio of 8 to 15, a compression set of 30 to 60% and a tear strength of 1.5 to 2.5 kg/cm. The crosslinked foam is obtained by heating an elastomer composition comprising a specif... | 03/13/2007 |
| 7183332 | Process for the preparation of porous polymers and polymers obtainable thereof A process for preparing porous olefin polymers comprising bringing into contact in a polymerization reactor, at a temperature T1, one or more olefins of the formula (I) CH2═CHR1, R1 being hydrogen, a C1–C | 02/27/2007 |
| 7176247 | Interpenetrating polymer network A water insoluble interpenetrating polymer network is obtained by independently cross-linking a first polymer derived from a sulfonic acid or phosphonic acid group containing alkenyl monomer and a second polymer polymerized independently of the first polymer and int... | 02/13/2007 |
| 7173066 | Ion exchanger A porous ion exchanger includes an open cell structure including interconnected macropores and mesopores whose average diameter is in a range of 1 to 1000 μm existing on walls of the macropores. Moreover, a total pore volume is in a range of 1 to 50 ml/g, ion excha... | 02/06/2007 |
| 7172645 | Gas filtration and storage using activated carbon/graphite foam monoliths An apparatus for separating a first gas from a mixture of the first gas and at least one second gas comprises a housing having an inlet port and an outlet port and an adsorbent which is positioned in the housing. The adsorbent comprising a carbon based foam monolith... | 02/06/2007 |
| 7166683 | Process for polymerizing 1-butene and 1-butene polymers A process for polymerizing 1-butene, optionally with up to 30% by mol of ethylene, propylene or an alpha olefin of formula CH2═CHT wherein T is a C3–C10 alkyl group, in the presence of a catalyst system obtainable by contacting a... | 01/23/2007 |
| 7163966 | Superabsorbent polymer having increased rate of water absorption The invention relates to a superabsorbent polymer wherein an increased rate of water absorption is obtained by the addition of an encapsulated blowing agent. The invention relates to a superabsorbent polymer including an encapsulating blowing agent and having a vort... | 01/16/2007 |
| 7160939 | Active masterbatch for production of CO2 generating masterbatch A compound permitting the economic production of packaging containers, which when activated produces concentrated amounts of CO2 gas for extended periods for preservation of perishable products therein, comprises a mixture including a CO2 generating portion incorpor... | 01/09/2007 |
| 7148264 | Method of producing macroporous cross-linked polymer particles The present invention relates to a method of producing one or more macroporous cross-linked polymer particles, which comprises polymerization and cross-linking of divinyl ether monomers in an inert solvent, in which method the polymerization is free radical initiate... | 12/12/2006 |
| 7138436 | Uncrosslinked foams made from emulsions The invention discloses methods for making uncrosslinked foams by polymerizing emulsions comprising a reactive phase and a phase immiscible with the reactive phase components. Foams made from water-in-oil emulsions, including high internal phase emulsion are disclos... | 11/21/2006 |
