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5889064 |
Process and apparatus for producing a foamed polymer
In the process and an extrusion device for producing a foamed polymer, a polymer is melted and a foaming agent is added to the polymer melt. After the polymer melt and the foaming agent have been...
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5886061 |
Polymers capable of reversibly complexing acid gases and foamed polymers produced therefrom
Polymers capable of reversibly complexing carbon dioxide and other acid gases and a method of producing such polymers are disclosed. In a preferred embodiment, the present polymers incorporate...
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5869544 |
Extruded, open-cell microcellular alkenyl aromatic polymer forms, process for making, and articles made therefrom
Disclosed is an extruded, open-cell microcellular alkenyl aromatic polymer foam useful in insulating applications. The foam has an open cell content of about 70 percent or more. The foam has an...
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5863958 |
Absorbent article containing a foam comprising crosslinked polymers made from 1,3,7-octatriene and like conjugated polyenes
Polymers are made from 1,3,7-octatriene or like conjugated polyenes and a crosslinking agent having at least 2 activated double bonds such as ethylene glycol dimethacrylate. These polymers can be...
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5863957 |
Polymeric microbeads
The present invention relates to porous crosslinked polymeric microbeads having cavities joined by interconnecting pores wherein at least some of the cavities at the interior of each microbead...
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5858501 |
Evacuated insulation panel having non-wrinkled surfaces
There is an evacuated insulation panel comprising a corestock of an open-cell alkenyl aromatic polymer foam and a deformable receptacle. The foam has an open cell content of about 70 percent or...
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5854297 |
Foam materials based on copolymers of styrene and 1,1-diphenylethene
Foam materials based on copolymers of styrene with from 2 to 50 mol % of 1,1-diphenylethene have a high heat distortion resistance.
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5854295 |
Microcellular foams containing an infrared attenuating agent and a method of using
Disclosed is an evacuated and unevacuated microcellular foam containing an infrared attenuating agent (IAA). The evacuated foam has an average cell size of about 70 micrometers or less. The...
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5847016 |
Polymer and wood flour composite extrusion
An extrusion profile is formed of foamed plastic, which includes a filler of wood flour or wood fiber. The foamed plastic may include polyvinyl chloride, chlorinated polyvinyl chloride or...
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5830924 |
Non-linear styrenic polymer-based foams
Disclosed is a process for preparing a low density closed-cell polymer foam comprising a plurality of closed-cells having an average cell size of at least about 0.08 millimeter characterized in...
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5830925 |
Bitumen compositions and a process for their preparation
The invention provides a process for preparing a bitumen composition comprising blowing a mixture with an oxygen-containing gas which mixture comprises a bitumen having a penetration of less than...
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5824710 |
Extruded, open-cell foam and process for making
Disclosed is an extruded, open-cell alkenyl aromatic polymer foam useful in insulating applications. The foam has an open cell content of 30 percent or more. The foam further has in minor dimension...
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5811470 |
Flame retardant styrenic polymers
Compositions and methods are described wherein a styrenic polymer is rendered flame retardant by incorporation therein before, during or after its formation, a combination of (a) at least one...
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5798009 |
Foamed rubber compositions for tires and pneumatic tire using the same
A foamed rubber composition for tire comprises a particular amount of particles having specified hardness and average particle size and containing aluminum-bonded hydroxy group and/or...
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5795921 |
Foams made for high internal phase emulsions useful as absorbent members for catamenial pads
Foams capable of absorbing blood and blood-based fluids, especially menses. These absorbent foams have high capillary absorption pressures required of absorbents used in catamenial products, yet...
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5786406 |
Polyolefin based crosslinked foam
A polyolefin based crosslinked foam excellent in impact absorbability, vibration absorbability and heat insulation, which can be used for various kinds of industrial applications such as materials...
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5786395 |
Absorbent foams made from high internal phase emulsions useful for acquiring and distributing aqueous fluids
Absorbent foams materials that are capable of acquiring and distributing aqueous fluids, especially discharged body fluids such as urine. These absorbent foams combine relatively high capillary...
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5770634 |
Foam materials for insulation, derived from high internal phase emulsions
The present invention relates to compressable polymeric foam materials useful as insulation. These polymeric foams are prepared by polymerization of certain water-in-oil emulsions having a...
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5763499 |
Process for making absorbent foams from high internal phase emulsions useful for acquiring aqueous fluids
Absorbent foam materials that are capable of acquiring and distributing aqueous fluids, especially discharged body fluids such as urine. These absorbent foams combine relatively high capillary...
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5760097 |
Methods of preparing polymeric microbeds
The present invention relates to porous crosslinked polymeric microbeads having cavities joined by interconnecting pores wherein at least some of the cavities at the interior of each microbead...
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5744505 |
Prefoamed polyolefin beads produced by extrusion
Prefoamed polyolefin beads, produced by extrusion followed by granulation, have a crystal structure with a double peak.
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5741581 |
Absorbent foam materials for aqueous fluids made from high internal phase emulsions having very high water-to-oil ratios
Low density collapsed absorbent foams materials that, upon contact with aqueous fluids, in particular urine, can expand and absorb these fluids. These low density foams typically have an expanded...
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5741824 |
Acoustically active plastisols
The invention relates to acoustically active sprayable plastisol compositions based on styrene copolymers and/or alkyl methacrylate homopolymers and/or copolymers of methyl methacrylate which, in...
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5739221 |
Suspension-polymerization process for producing expandable styrene resin beads
Expandable styrene resin beads are described, which, when expanded to a bulk density of 20 g/l, give pre-expanded beads in which the number of cells present along those surface parts of radii which...
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5731359 |
Vibration-absorbing elements
A vibration-absorbing element comprised of a foamed thermoplastic polymer selected from the group consisting of polyamide elastomers, EPDM polymers and SEBS polymers containing conventional...
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5726215 |
Styrene resin composition and shaped article thereof
A styrene resin composition is disclosed which constitutes 45 to 92% by weight of a styrene resin (A), 5 to 45% by weight of an olefin resin other than an ethylene-unsaturated carboxylic acid ester...
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5718968 |
Memory molded, high strength polystyrene
An expanded, memory molded, increased density, highly impact-resistant polystyrene construct, and method of making the construct. The construct is formed by molding pre-expanded non-equilibrated...
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5717000 |
Despersions of delaminated particles in polymer foams
This invention relates to a polymer foam prepared by dispersing an organophilic multi-layered material into a melt comprising an olefinic or styrenic polymer having polar functionality so that at...
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5717001 |
Heat stabilized, flame retardant styrenic polymer foam compositions
Low density, heat stabilized, flame retardant styrenic polymer foam compositions, include a halogen-based flame retardant such as hexabromocyclododecane and zeolite A heat stabilizer.
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5717008 |
Composition for use in sculpturing, a sculpturing piece comprising the composition and method for obtaining the piece
A composition for use in sculpturing, a sculpturing piece comprising the composition and a method for obtaining the piece, wherein the composition comprises 90 to 99% of a particulate material...
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5712319 |
Resin composition for low expansion moldings
A resin composition for low expansion moldings which comprises (A) 20 to 80 parts by weight of a vinyl chloride resin having an average degree of polymerization of from 500 to 1700 and (B)...
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5710186 |
Foams containing treated titanium dioxide and processes for making
Disclosed is a closed-cell polymer foam comprising a quantity of titanium dioxidce particulates sufficient to reduce the thermal conductivity of the foam to less than that of a corresponding foam...
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5710187 |
Highly cross-linked nanoporous polymers
Condensation polymerization followed by a supercritical extraction step can be used to obtain highly cross-linked nanoporous polymers with high surface area, controlled pore sizes and rigid...
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5708040 |
Method for preparing porous membranes utilizing water or organic vapor adsorption
The present invention describes a method for preparing an asymmetric porous membrane by a dry-wet phase inversion method, which comprises contacting a cast or spun polymer solution with water or...
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5698603 |
Expandable styrene polymers containing recycled material
The present invention relates to expandable styrene polymers containing recycled polystyrene, having a recycled material content of from 10 to 50% by weight, based on the total weight of the...
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5693687 |
Extruded open-cell alkenyl aromatic polymer foam and process for making
Disclosed is an extruded, open-cell alkenyl aromatic polymer foam useful in insulating applications. The foam has an open cell content of about 30 to about 80 percent. The foam further has in minor...
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5692939 |
Absorbent foams made from high internal phase emulsions useful for acquiring aqueous fluids
Absorbent foam materials that are capable of acquiring and distributing aqueous fluids, especially discharged body fluids such as urine. These absorbent foams combine relatively high capillary...
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5693685 |
Thermal insulator and method for producing the same
A thermal insulator of the present invention includes a foam containing solidified CO 2 gas. A method for producing the thermal insulator includes the steps of: mixing a metal compound selected...
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5688832 |
Low molecular weight alkenyl aromatic polymer foam
Disclosed is a foam structure of desirable mechanical strength made with a low molecular weight alkenyl aromatic polymer material and an inorganic blowing agent. The polymer material has an alkenyl...
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5686497 |
Expandable beads based on a polymer of a vinylaromatic compound containing blowing agent and plasticizer
The present invention relates to expandable beads based on a polymer of a vinylaromatic compound containing a blowing agent and, in an amount of 0.1 up to 2% wt, preferably 0.3 up to 1.5% wt...
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5683800 |
Surface-modified post-crosslinked adsorbents and a process for making the surface modified post-crosslinked adsorbents
Disclosed is a surface-modified polymeric adsorbent material comprising a porous post-crosslinked polymer as a substrate and at least one surface-modifying polymer. The porous post-crosslinked...
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5684055 |
Semi-continuous production of solid state polymeric foams
The present invention provides a method for the semi-continuous production of microcellular foam articles. In a preferred embodiment, a roll of polymer sheet is provided with a gas channelling...
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5684087 |
Process for producing thermoplastic granulated polymer material from polymer solutions
This invention relates to a process for producing granulated polymer materials from polymer solutions, in which organic solvent of the polymer solution is evaporated in a heat exchanger, optionally...
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5674916 |
Extruded, open-cell microcellular alkenylaromatic polymer foams and process for making
Disclosed is an extruded, open-cell microcellular alkenyl aromatic polymer foam useful in insulating applications. The foam has an open cell content of about 70 percent or more. The foam has an...
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5670552 |
Foam and process for producing foam using a carbon dioxide blowing agent
The present invention provides a process for producing thermoplastic foam, including: (a) melting a thermoplastic polymer to produce a polymer melt; (b) introducing a carbon dioxide blowing...
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5665785 |
Process for forming microcellular structures having an integral skin and products thereof
Shaped microcellular structures having substantially non-cellular skins are produced from reactive liquid polymer systems incorporating thermoplastic microspheres containing volatile materials such...
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5650106 |
Extruded foams having a monovinyl aromatic polymer with a broad molecular weight distribution
Disclosed is an extruded, linear, bimodal monovinyl aromatic polymer foam having a weight average molecular weight of from about 100,000 to about 200,000, greater than 5 percent by weight of its...
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5635543 |
Expanded foamed bead of a rubber-modified styrene polymer
Disclosed is an expanded foamed bead of a rubber-modified styrene polymer, comprising a plurality of closed cells defined by cell walls which constitute a matrix for the bead, wherein each of the...
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5629352 |
Solvent for polystyrene, method for reducing volume of polystyrene foam and method for recycling polystyrene foam
A solvent for polystyrene, having an excellent dissolving ability and chemical stability with no influence on the operating environment, is disclosed. A relatively simple recycling or reutilizing...
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5627219 |
Formed plastic and method of manufacturing the same
A foamed plastic manufactured by foaming a mixture of a resin and a volatile polymerizable foaming agent, wherein the pressure in the foams of the foamed plastic is less than atmospheric pressure,...
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