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Class 521/62 - Mixture of solid polymers present during cell formation


Subclass of Class 521 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Subject matter wherein two or more polymers are present
No. of patents: 206
Last issue date: 08/25/2009


1            
NumberTitleIssue Date
7579385Dried porous crumbs of hydrogenated block copolymer
Disclosed are dried porous crumbs of a hydrogenated block copolymer which is obtained by hydrogenating a block copolymer comprising (a) at least one polymer block composed mainly of aromatic vinyl monomer units and (b) at least one polymer block composed mainly of c...
08/25/2009
7435761Microporous 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
7432311Process for creating high internal phase polymeric emulsions
A “high internal phase polymeric emulsion” (“HIPPE”) composition is described which comprises an emulsion of a discrete phase (component A) and a continuous phase (component B), wherein the volume fraction of the discrete phase is the majority fraction (on a...
10/07/2008
7368526Functionalized porous poly(aryl ether ketone) materials and their use
Functionalized porous poly(aryl ether ketone) articles are prepared by reacting ketone groups in the backbone of poly(aryl ether ketone) polymer with a primary amine reagent. Preferred functional primary amines are primary aliphatic amines or substituted hydrazines ...
05/06/2008
7328733Inner tube compositions having improved heat resistance characteristics
Halogenated isobutylene-co-alkylstyrene polymer, preferably halogenated isobutylene-co-methylstyrene polymer, even more preferably brominated isobutylene-co-paramethylstyrene polymer (BIMS), blends thereof, and blends with a second rubber, show improved heat resista...
02/12/2008
7322694Hybrid contact lens system and method
A hybrid contact lens comprises a central zone comprising a substantially rigid, gas permeable material having a DK of at least 30, a relatively soft peripheral zone and an intermediate zone comprising a film or coating that is created around the central zone, and t...
01/29/2008
7316919Composite materials comprising supported porous gels
This invention relates to a composite material that comprises a support member that has a plurality of pores extending through the support member and, located in the pores of the support member, and filling the pores of the support member, a macroporous cross-linked...
01/08/2008
7300022Modified membranes
A porous polymeric membrane formed from a blend of a polymeric membrane forming material, such as polyvinylidene fluoride or polysulfone and a polymeric reactivity modifying agent adapted to modify the surface active properties of the porous polymeric membrane. The ...
11/27/2007
7268169Silicone elastomer porous body
A substantially closed-cell silicone elastomer porous body includes cells with diameters of 50 μm or less, which occupy 50% or more of all the cells, and has a closed cell rate of 60% or more. ...
09/11/2007
7238744Ultrahigh molecular weight polyethylene articles and method of manufacture
An article of manufacture comprises an ultrahigh molecular weight polyethylene (UHMWPE) mixed with a processing oil and a lubricant selected from the group consisting of fatty acid esters, ethoxylated fatty acid esters, glycol esters, PEG esters, glycerol esters, et...
07/03/2007
7211322Lead acid battery separator with improved electrical and mechanical properties
An oxidation resistant, microporous polyolefin web exhibiting high-strength mechanical and low electrical resistance properties is a solid matrix that includes an ultrahigh molecular weight polyolefin component and a friable precipitated silica component. The ultrah...
05/01/2007
7208216Disposable cutting sheet
A disposable cutting sheet for cutting and preparation of food items thereon includes a first cut resistant layer having an absorbent ply and a thermoplastic ply, wherein the thermoplastic ply includes a plurality of apertures therethrough. The sheet further include...
04/24/2007
7176273Functionalized porous poly(aryl ether ketone) materials and their use
Functionalized porous poly(aryl ether ketone) articles are prepared by reacting ketone groups in the backbone of poly(aryl ether ketone) polymer with a primary amine reagent. Preferred functional primary amines are primary aliphatic amines or substituted hydrazines ...
02/13/2007
7169451Gas-permeable membrane
Novel gas-permeable membranes which are particularly useful in the packaging of fresh cut fruit and vegetables, and other respiring biological materials. The membranes have an O2 permeability of at least 775,000 ml/m2.atm.24 hrs, a P10
01/30/2007
7166644Porous polymeric membrane comprising vinylidene fluoride
A process for producing a porous polymeric structure which process comprises preparing a solution comprising a polymer which comprises vinylidene fluoride in a solvent/non-solvent mixture; holding the solution at an elevated temperature until the polymer is complete...
01/23/2007
7144930Functionalized, structurally modified silicas
Functionalized, structurally modified silicas with 3-methacryloxypropylsilyl and/or glycidyloxypropylsilyl groups on the surface are prepared by mixing the silicas with the silane and heat-treating, destructuring and grinding the mixture. The silicas are employed in...
12/05/2006
7144980Manufacture of web superabsorbent polymer and fiber
A web of superabsorbent polymer and fiber made by an in situ neutralization, wet-laid process, wherein the degree of neutralization of the superabsorbent polymer is partial, preferably less than about 80 mol %. The web exhibits an excellent centrifuge retention capa...
12/05/2006
7132024Artificial leather composite reinforced with ultramicrofiber nonwoven fabric
A method for manufacturing an artificial leather comprises the following steps. First, ultramicrofiber-forming fibers having an islands-in-sea type cross-sectional configuration are formed by blend spinning or conjugate spinning. Secondly, a porous reinforcement she...
11/07/2006
7128861Method for producing hollow yarn film
In a method for producing hollow fiber membranes which comprises melt kneading a mixture comprising polyvinylidene fluoride and an organic liquid or a mixture comprising polyvinylidene fluoride, an organic liquid and an inorganic fine powder, extruding the kneaded m...
10/31/2006
7118207Ink-jet color recording ink, color ink feeding device using the ink, and ink-jet color recroding apparatus and method using the ink
Ink for use in an ink-jet color recording apparatus and a plurality of kinds of small microcapsules dispersed in the solvent, each small microcapsule having an outer shell destroyable with ultrasonic waves of a predetermined resonant frequency, each small microcapsu...
10/10/2006
7115673Photosensitive resin composition, porous resin, circuit board, and wireless suspension board
The present photosensitive resin composition 2 comprises a polyamic acid resin 4, a photosensitive agent, a dispersible compound 3 dispersible in the polyamic acid resin 4, and a solvent. The porous resin is obtained by removing the solve...
10/03/2006
7104648Hybrid contact lens system and method
A method of manufacturing a hybrid contact lens having a substantially rigid center portion and a substantially flexible outer portion, comprising forming the substantially rigid center portion, treating the substantially rigid center portion to form a coating on th...
09/12/2006
7097301Hybrid contact lens system and method
A hybrid hard-soft contact lens is provided. Several embodiments of the invention include methods of coupling the hard and soft sections of the contact lens. Other embodiments of the invention include contact lens materials and coatings that increase oxygen transmis...
08/29/2006
7078088Disposable cutting sheet
A disposable cutting sheet for Processing food items thereon includes a cut-resistant layer including a thermoplastic material ply and an absorbent ply, wherein the first layer has a surface area and wherein the thermoplastic material of the first layer includes a p...
07/18/2006
7063879Disposable cutting sheet
A disposable cutting sheet for processing food items thereon includes a first cut-resistant layer having a first surface area and including a first absorbent ply and a thermoplastic material ply. The cutting sheet further includes a second layer having a second surf...
06/20/2006
7063880Sheet material and manufacturing method and apparatus therefor
A method of manufacturing a single use processing substrate includes the step of extruding a first layer having ridges and troughs between the ridges. The method further includes the steps of placing a second layer into the troughs while the first layer is pliant an...
06/20/2006
7056455Process for the preparation of nanostructured materials
The present invention comprises a novel process for the preparation of carbon based structured materials with controlled topology, morphology and functionality. The nanostructured materials are prepared by controlled carbonization, or pyrolysis, of precursors compri...
06/06/2006
7056569Disposable cutting sheet
A cutting sheet for cutting and preparation of food items thereon comprises a first cut-resistant layer having a width and including a first absorbent ply and a first thermoplastic material ply. The thermoplastic material ply of the first layer includes a plurality ...
06/06/2006
7048987Disposable cutting sheet
A disposable cutting sheet for cutting and preparation of food items thereon includes a first cut-resistant layer having a first surface area and including an absorbent ply and a thermoplastic material ply, wherein the thermoplastic material ply includes a plurality...
05/23/2006
7044988Partially dehydrated reaction product, process for making same, and emulsion containing same
The disclosed invention relates to a composition comprising a partially dehydrated product made by: (I) reacting (A) a hydrocarbyl substituted succinic acid or anhydride with (B) a polyol, a polyamine, a hydroxyamine, or a mixture ...
05/16/2006
7026034Processing substrate and method of manufacturing same
A disposable cutting sheet for cutting and preparation of food items thereon includes a first section having a plurality of apertures therethrough and a cut resistant surface, a second liquid impermeable section disposed adjacent the first section, and a fold line d...
04/11/2006
7022395Disposable cutting sheet
A disposable cutting sheet for cutting and preparation of food items thereon includes a first cut-resistant layer having a first surface area and an absorbent ply and a thermoplastic material ply, wherein the first layer includes a plurality of non-circular aperture...
04/04/2006
7018039Contact lens
A contact lens is provided. One embodiment of the present invention provides a method for fitting and prescribing a contact lens. Another embodiment of the present invention comprises a contact lens construction that provides a stable prescription platform. Yet anot...
03/28/2006
6994789Pre-metered, unsupported multilayer microporous membrane
An at least two layer, unsupported, continuous microporous membrane is disclosed. The at least two layer, unsupported, continuous microporous membrane may include at least two different membrane pore size layers or the pore sizes may have about the same pore size. A...
02/07/2006
6979480Porous inkjet receptor media
Improved macroporous ink receptor media are disclosed. An inkjet receptive media in accordance with one embodiment of the present invention comprises a web comprising a plurality of fibers and a coating overlaying at least a portion of a plurality of the fibers. In ...
12/27/2005
6979485Processing substrate and/or support surface
A disposable cutting sheet for cutting and preparation of food items thereon includes a first cut-resistant layer having a first surface area and including an absorbent ply and a thermoplastic material ply, wherein the thermoplastic ply includes a plurality of apert...
12/27/2005
6966436Absorbent mats for food packaging
An absorbent mat includes top and bottom layers of thermoplastic material with absorbent media disposed therebetween. The top and bottom layers are bonded directly together, or to the absorbent media disposed therebetween, in spaced-apart bond sites. One or more per...
11/22/2005
6953510Method of making microporous breathable film
A polyolefin microporous breathable film having improved tear and impact strength as well as a soft feel is provided by a film including a polypropylene precursor film and a filler. Other embodiments include a second polymer component. ...
10/11/2005
6905742Polypropylene card construction
An image retaining card is disclosed. An image retaining card in accordance with the present invention may be utilized as an identification card, a driver's license, a passport, and the like. An image retaining card in accordance with the present invention comprises...
06/14/2005
6897247High internal phase polymeric emulsion composition
A high internal phase emulsion composition comprising: a) at least three components; b) component A is a polymer, monomer or mixture thereof; c) component B is a polymer; d) component C is a compatiblizer; e) substantially no voids; and wherein the volume fraction o...
05/24/2005
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