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...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!

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Class 525/332.2 - Divinyl benzene


Subclass of Class 525 - Synthetic resins or natural rubbers -- part of the class 520 series
Definition: Product wherein the nonconjugated ethylene monomer is divinyl
No. of patents: 174
Last issue date: 06/30/2009


1          
NumberTitleIssue Date
7553911Coated polydivinylbenzene beads
The present invention provides novel, polymeric supports, methods of making, and methods of using the supports, that have a fluorinated, amidated surface. The supports include polymeric microbeads, thin layers or membranes, plates, monoliths and the like. The suppor...
06/30/2009
7396883Coated polydivinylbenzene beads
The present invention provides novel, polymeric supports, methods of making, and methods of using the supports, that have a fluorinated, amidated surface. The supports include polymeric microbeads, thin layers or membranes, plates, monoliths and the like. The suppor...
07/08/2008
7332002Low sulfur coal additive for improved furnace operation
The present invention is directed to additives for coal-fired furnaces, particularly furnaces using a layer of slag to capture coal particles for combustion. The additive(s) include iron, mineralizer(s), handling aid(s), flow aid(s), and/or abrasive material(s). The...
02/19/2008
7326346High capacity regenerable sorbent for removal of arsenic and other toxic ions from drinking water
The present invention is directed to a sorbent comprising a disordered polyvalent metal oxide on the surface of an inert substrate. The substrate can be a layered silicate, such as vermiculite, an aluminosilicate such as montmorillonite, or a nonlayered silicate suc...
02/05/2008
7294654Method of making thermally regenerable salt sorbent resins
A heterogenous hybrid thermally regenerable salt sorbent resin is formed from a hybrid precursor resin. The hybrid precursor resin is formed by intimately mixing a dry, solid crosslinked macroporous copolymer with a solution containing a polyunsaturated monomer, a m...
11/13/2007
7282237Method for surface modification, a novel support matrix and the use of the matrix
A method for hydrophilization and/or surface area enlargement of a porous base matrix comprising on its inner and/or outer surfaces a polymer (P′) carrying nucleophilic groups X′. The method is characterized in (a) ethoxylating...
10/16/2007
7238751Multi-layer nano-particle preparation and applications
A multi-layer nano-particle composition including a polymer core and at least two additional layers is provided. The nano-particles have a mean average diameter less than about 100 nm. The nano-particles can be modified via, for example, hydrogenation or functionali...
07/03/2007
7235297Amphiphile solid support for peptide synthesis, bioorganic and organic chemistry
The present invention fulfils desired specifications generally rarely encountered with existing solid supports such as highly amphiphile behaviour. The solid support described herein is a poly(ethylene or propylene)glycol based polymer that can be useful in solid an...
06/26/2007
7201962Hemocompatible coated polymer and related one-step methods
A polymer with a hemocompatible film or coating is manufactured by a one-step method comprising polymerizing monomer droplets comprising at least one crosslinking agent to form a polymer and simultaneously coating the resulting polymer using at least one dispersing ...
04/10/2007
7198893DNA diagnostics based on mass spectrometry
Fast and highly accurate mass spectrometry-based processes for detecting a particular nucleic acid sequence in a biological sample are provided. Depending on the sequence to be detected, the processes can be used, for example, to diagnose a genetic disease or chromo...
04/03/2007
7183235High capacity regenerable sorbent for removing arsenic and other toxic ions from drinking water
The present invention is directed to a sorbent comprising a disordered polyvalent metal oxide on the surface of an inert substrate. The substrate can be a layered silicate, such as vermiculite, an aluminosilicate such as montmorillonite, or a nonlayered silicate suc...
02/27/2007
7179864Polymer nano-strings
A polymer nano-string composition is provided. The polymer nano-strings can include a poly(alkenylbenzene) core, and a surface layer comprising poly(conjugated diene). The nano-strings have a mean average diameter of less than about 100 nm and a length of greater th...
02/20/2007
7176175Cleansing processing agent, cleansing method employing the agent and a molded structural member
A cleansing processing agent that is able to remove harmful substances contained in a variety of waste materials and a cleansing method are disclosed. Specifically, there is disclosed a cleansing processing agent containing a polymer having at least one of styrene o...
02/13/2007
7125934Functionalization of living rubbery polymers with nitrones
This invention discloses a low cost process that can be used to functionalize living rubbery polymers with terminal nitroxide end-groups to promote interaction between the polymer end-groups and surface functionalities commonly found on carbon black and silica fille...
10/24/2006
7119145Surface graft modified resins and formation thereof
Pre-formed polymer particles are chemically modified by free radical-initiated surface graft modification. The resulting resin is specifically adapted to provide enhanced chromatographic performance throughout chromatographic separations. ...
10/10/2006
7087223Preventives and/or remedies for hyperphosphatemia
Provided in a phosphate ion adsorbent containing a weakly basic anion exchange resin as an active ingredient which aims at providing preventives and/or remedies for hyperphosphatemia having a high selectivity for the adsorption of phosphate ion and showing an effect...
08/08/2006
7060752Synthesis and use of nitrophenol resins
Nitrophenol resins based upon various support materials. The nitrophenol resins are prepared by amide bond formation between a hydroxyl nitro benzoic acid and an aminoalkyl polymer support. ...
06/13/2006
7048781Chemically-impregnated silicate agents for mercury control
The present invention is directed to a contaminant removal agent comprising a polyvalent metal sulfide on the surface of an inert substrate. The substrate can be a layered silicate, such as vermiculite, an aluminosilicate such as montmorillonite, or a nonlayered sil...
05/23/2006
7037642Removing compounds from blood products with porous particles immobilized in a matrix
Methods and devices are provided for reducing the concentration of low molecular weight compounds in a biological composition containing cells while substantially maintaining a desired biological activity of the biological composition. The device comprises highly po...
05/02/2006
6974851Halogen- and sulfur-free shaped articles containing peroxide curable compounds of butyl rubber
The present invention relates to a shaped article for high purity applications containing at least one peroxide curable compound containing a substantially gel-free butyl polymer. In another of its aspects, the present invention relates to a sealing material and a m...
12/13/2005
6956084Nano-particle preparation and applications
A nano-particle composition including a poly (alkenylbenzene) core and a poly (conjugated diene) or a poly(alkylene) surface layer is provided. The nano-particles have a mean average diameter less than about 100 nm. The nano-particles can be modified via, for exampl...
10/18/2005
6951713Absorbing pathogen-inactivating compounds with porous particles immobilized in a matrix
Methods and devices are provided for reducing the concentration of low molecular weight compounds in a biological composition, while substantially maintaining a desired biological activity of the biological composition. The device comprises highly porous adsorbent p...
10/04/2005
6942840Method for removal and stabilization of mercury in mercury-containing gas streams
The present invention is directed to a process and apparatus for removing and stabilizing mercury from mercury-containing gas streams. A gas stream containing vapor phase elemental and/or speciated mercury is contacted with reagent, such as an oxygen-containing oxid...
09/13/2005
6919382Preparation and uses of conjugated solid supports for boronic acids
The invention provides novel solid supports comprising dihydroxyalkyl aminoalkyl and dihydroxyalkylaminobenzyl groups, and methods for making and using them. The supports are particularly useful for immobilizing and derivatizing functionalized boronic acids for use ...
07/19/2005
6911570Method for fixating sludges and soils contaminated with mercury and other heavy metals
The invention relates to a method, composition and apparatus for stabilizing mercury and other heavy metals present in a particulate material such that the metals will not leach from the particulate material. The method generally involves the application of a metal ...
06/28/2005
6878779Cross-copolymerized olefin/aromatic vinyl compound/diene copolymer and process for its production
A highly uniform vinyl compound polymer-cross-copolymerized olefin/styrene/diene copolymer excellent in processability, mechanical properties, high temperature properties, compatibility and transparency, and its composition and a process for its production, are prov...
04/12/2005
6875818Polymer nano-strings
A polymer nano-string composition is provided. The polymer nano-strings can include a poly(alkenylbenzene) core, and a surface layer comprising poly(conjugated diene). The nano-strings have a mean average diameter of less than about 100 nm and a length of greater th...
04/05/2005
6872785Multi-layer nano-particle preparation and applications
A multi-layer nano-particle composition including a polymer core and at least two additional layers is provided. The nano-particles have a mean average diameter less than about 100 nm. The nano-particles can be modified via, for example, hydrogenation or functionali...
03/29/2005
6858299High solids process for preparing polymeric nanoparticles
The present invention relates to an emulsion free high solids process for preparing crosslinked polymeric nanoparticles of 1-200 nm in diameter. ...
02/22/2005
6841642Processability butyl rubber and process for production thereof
A butyl polymer having improved processability is described, together with a process for production thereof. The butyl polymer derived from a reaction mixture which contains: (i) a monomer mixture comprising a C4 to C7 monoolefin monomer (preferably isobutylene) and...
01/11/2005
6831134Method for preparing transparent block copolymer resin, copolymer prepared thereby, and usage thereof
The present invention relates to a method for preparing a copolymer containing a combined linear and nonlinear block, that is, mikto block, a copolymer prepared from the method, and usages of the copolymer. More particularly, the present invention provides a novel m...
12/14/2004
6809146Rubber mixtures containing silica, carbon black and rubber gel
The present invention relates to rubber mixtures based on silica and carbon black-filled solution styrene/butadiene rubbers in which the silica has been partially replaced by rubber gels. The vulcanizates produced from the rubber mixtures of the present invention ar...
10/26/2004
6777500Core-shell polymer particles
A core-shell particle for use as filler in rubber compositions. In one embodiment, the particle comprises a crosslinked core having repeat aromatic vinyl units. During an emulsion polymerization, a crosslinked shell comprising of conjugated diene units is grafted on...
08/17/2004
6740712Polymers based on N-carbamyl-N'-dimethylsilyl methyl-piperazine traceless linkers for the solid phase synthesis of phenyl based libraries
The present invention relates to polymers characterized by novel silicon linkers based on the carbamyl piperazine moiety, methods of preparing these polymers and their use in the solid phase synthesis of compounds or libraries of compounds embracing a phenyl ring in...
05/25/2004
6723798Resins having vinyl ether linker for the solid phase organic synthesis
The present invention relates to a resin having a vinyl ether linker and more particularly, to a resin having a vinyl ether linker expressed by formula (I), useful for the synthesis of compounds having hetero atoms such as alcohol, thiol, imidazole, triazole and tet...
04/20/2004
6689469Crystalline polymer nano-particles
A polymer nano-particle composition is provided. The composition includes polymer nano-particles having a poly(alkenylbenzene) core and a surface layer comprising a crystalline polyolefin. The nano-particles preferably have a mean average diameter of less...
02/10/2004
6639023Fluorophenyl resin compounds
This invention is directed to a fluorophenyl resin compound, to methods of its preparation; and to its use in the solid phase synthesis of amides, peptides, hydroxamic acids, amines, urethanes, carbonates carbamates, sulfonamides and ଱-substituted c...
10/28/2003
6620882Solid support template for preparation of highly functionalized heterocycle compounds
The present invention relates to a novel solid support template of Formula (I) and methods for producing novel highly functionalized imidazoles, pyrazinones and benzodiazepinones through a plurality of chemical reactions utilizing the solid support templa...
09/16/2003
6579940Thermoplastic elastomeric material as a replacement for natural rubber latex
The present invention provides functionally modified thermoplastic elastomeric compounds composed of at least one polystyrene hard domain, at least one polyolefin rubber domain and at least one cross-linkable compound interspersed within one or more of th...
06/17/2003
6573336Wastewater treating agent, method for wastewater treatment, sludge dehydrant and method for sludge treatment
Sulfonated styrene polymer and/or its salt, a waste water treatment material and sludge dehydrating agent each containing the sulfonated styrene polymer and/or its salt as an effective component thereof are disclosed. The waste water treatment material is...
06/03/2003
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