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Topic: Polyethylene oxide

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Ethylene oxide

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	Ethylene Oxide Derivatives — Ethoxylate, Polyethylene Glycols, Demulsifier, Emulsifier, Esterification
		Ethylene oxide is a reactive chemical, and other derivatives it forms include ethanolamies on reaction with ammonia, which are used in gas processing, detergents and soaps and cement grinding.
		Polyethylene Glycols: Polyethylene glycols are stable, hydrophilic substances that are essentially nonirritant to the skin.
		Choice of polyethylene glycol and fatty acid depends on the desired properties of the surfactant.
	www.emulsifiers.in (734 words)

	Mag Oxide and Magnesia Oxide : Specialty Chemicals For Rubber and Polymers.
		Westco 150 is a high purity technical grade of magnesium oxide processed from magnesium rich brine.
		Westco 200-AD is a high purity, highly reactive grade of magnesium oxide made from magnesium chloride brine.
		Westco HSA-10 is used as a scorch retarder in a variety of elastomers and adhesives, as a thickening agent in sheet and bulk molding compounds, and an acid acceptor in halogenated polymers.
	www.wrchem.com /Magnesia_Oxide.htm (262 words)

	Spread-coating compositions for paper comprising an aqueous dispersion of styrene/butadiene polymer and polyethylene ...
		These objects are attained by using in spread-coating compositions based on a styrene/butadiene-latex as a synthetic binder, from about 2% to about 30% by weight of polyethylene oxides having a molecular weight of from about 6,000 to about 50,000, based on the sum of the solids content of the binder plus polyethylene oxide.
		In a preferred embodiment, the polyethylene oxides are utilized in amount of from about 5% to about 20% by weight of the polymeric solids total content of the synthetic binder and polyethylene oxide.
		Although polyethylene oxides are hydrophilic, a surprising aspect of the synthetic binder-polyethylene oxides combination of this invention is the fact that papers coated therewith have substantially unimpaired water resistance, even when up to 20% of the binder is replaced by polyethylene oxides.
	www.freepatentsonline.com /4102845.html (0 words)

	Polyethylene glycol - WOI Encyclopedia Italia
		Polyethylene glycol (PEG) and polyethylene oxide (PEO) are polymers having an identical structure except for chain length and end groups, and are the most commercially important polyethers.
		Poly(ethylene glycol) refers to an oligomer or polymer of ethylene oxide with low molecular weight while polyethylene oxide is used for higher molecular weights.
		Polyethylene glycol is also commonly used as a polar stationary phase for gas chromatography, as well as a heat transfer fluid in electronic testers.
	www.wheelsofitaly.com /wiki/index.php?title=Polyethylene_glycol&redirect=no (614 words)

	Polyethylene glycol
		Polyethylene glycol and polyethylene oxide are polymers of ethylene oxide.
		Polyethylene glycol refers to the polymer with molecular weight less than 50,000, while polyethylene oxide is used for higher molecular weights.
		Polyethylene glycol is also used in liquid body armor [1] and tattoos to monitor diabetes.
	www.xasa.com /wiki/en/wikipedia/p/po/polyethylene_glycol.html (225 words)

	Polyethylene glycol - Wikipedia, the free encyclopedia
		Polyethylene glycol (PEG) and polyethylene oxide (PEO) are polymers having an identical structure, and are the most commercially important polyethers.
		Poly(ethylene glycol) or poly(ethylene oxide) refers to an oligomer or polymer of ethylene oxide.
		Poly(ethylene glycol) is also commonly used as a polar stationary phase for gas chromatography, as well as a heat transfer fluid in electronic testers.
	en.wikipedia.org /wiki/Polyethylene_glycol (804 words)

	Patent 7,153,524
		On the other hand, the ethylene oxide derivatives that are used as a base for formulation, such as polyethylene glycol, polyethylene oxide, and polyoxyethylene polypropylene copolymer, are employed as solubilizing agents, plasticizers, dispersants, and stabilizers.
		Polyethylene glycol is used, for instance, as a stabilizer of polypeptides, a plasticizer of sucralfate-containing compositions, and a base for retention [of a drug] in the blood.
		As cited in the present invention, "ethylene oxide derivatives" are substances containing ethylene oxide chains in the molecules thereof, and examples are polyethylene glycol, polyethylene oxides, and polyoxyethylene polypropylene copolymer.
	www.pharmcast.com /Patents100/Yr2006/Dec2006/122606/7153524_Absorption122606.htm (2050 words)

	U.S. Patent: 5096716 - Dosage form for administering calcium antagonist nicardipine - March 17, 1992
		The operating efficiency occurs by the simultaneous hydration and swelling of the polyethylene oxide coupled with the osmotic imbibition of exterior fluid through the semipermeable wall by the osmagent at a rate dependent on the concentration gradient across the wall.
		The polyethylene oxides used for manufacturing dosage form 10 are commercially available from the Union Carbide Corporation, South Charleston, W.V. The expression, "exit means 13," as used herein, comprises means and methods suitable for the metered release of the beneficial drug nicardipine and/or its salts from dosage form 10.
		In a separate operation, 16.125 kg of polyethylene oxide comprising a 5,000,000 molecular weight was mixed with 7.250 kg of sodium chloride, 1.25 kg of hydroxypropylmethylcellulose comprising a 11,200 molecular weight and optional 0.25 kg of red iron oxide added for color.
	www.everypatent.com /comp/pat5096716.html (4680 words)

	News \| Gainesville.com \| The Gainesville Sun \| Gainesville, Fla. (Site not responding. Last check: 2007-10-31)
		Polyethylene glycol (PEG) and polyethylene oxide (PEO) are polymers composed of repeating subunits of identical structure, called monomers, and are the most commercially important polyethers.
		Poly (ethylene glycol) or poly (ethylene oxide) refers to an oligomer or polymer of ethylene oxide.
		Whole bowel irrigation (polyethylene glycol with added electrolytes) is used for bowel preparation before surgery or colonoscopy and drug overdoses.
	www.gainesville.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=polyethylene_oxide (1008 words)

	Wikinfo \| Ethylene oxide
		Ethylene oxide gas kills bacteria, mold, and fungi, and can therefore be used to sterilize substances that would be damaged by sterilizing techniques such as pasteurization that rely on heat.
		Ethylene oxide sterilization for the preservation of spices was patented in 1938 by the American chemist Lloyd Hall, and it is still used in that role.
		Ethylene oxide itself can be polymerized to form polyethylene glycol or polyethylene oxide, which are useful as non-toxic, water-soluble polymers.
	www.wikinfo.org /wiki.php?title=Ethylene_oxide (670 words)

	Method for preparing water-soluble lacquer (Site not responding. Last check: 2007-10-31)
		3 kg of polyethylene oxide ("Polyox WSR 301" manufactured by Union Carbide Co.) having an average molecular weight of 3,500,000 was dissolved in 100 liters of water heated at 95.degree.
		Polyethylene oxide having an average molecular weight of less than 2,500,000 is not preferable since the viscosity of the lacquer having the same concentration becomes lower.
		In the above Examples, polyethylene oxide was dissolved in previously heated water, but polyethylene oxide may be dissolved in water at room temperature and the solution may be heated to the heat treatment temperature.
	www.sacnewsmonthly.com /invent/valve_filter/preparing_water-soluble_lacquer.html (1178 words)

	INEOS Oxide - Products - Technical Data Sheets
		Ethylene oxide is a colourless gas at ambient temperature which condenses when cooled to a colourless, mobile liquid boiling at 10.4°C. It is miscible in all proportions with water, alcohol, ether and many organic solvents.
		Synonyms for ethylene oxide are epoxyethane, dimethylene oxide, ethene oxide and oxirane.
		Polyethylene glycols are polymers of ethylene oxide with the generalised formula HO-(CH2-CH2-O)n-H, with Œn¹ indicating the average number of oxyethylene groups.
	www.ineosoxide.com /technicaldata.htm (1819 words)

	Ethylene oxide Summary
		Ethylene oxide is a disinfectant, fumigant, and sterilizer, and its derivatives have a wide range of industrial and commercial uses.
		Ethylene oxide gas kills bacteria, mold, and fungi, and can therefore be used to sterilize substances that would be damaged by sterilizing techniques such as pasteurization that rely on heat.
		Ethylene oxide sterilization for the preservation of spices was patented in 1938 by the American chemist Lloyd Hall, and it is still used in that role.
	www.bookrags.com /Ethylene_oxide (1173 words)

	Polyethylene Glycol for Pharmaceutical Formulations
		Polyethylene glycols are widely used in a variety of pharmaceutical formulations including parenteral, topical, ophthalmic, oral and rectal preparations.
		Mixtures of polyethylene glycols can be made higher to withstand exposure to warmer climates; release of the drug is not dependent upon melting point; physical stability on storage is better; suppositories are readily miscible with rectal fluids.
		Polyethylene glycols are chemically stable in air and in solution although grades with a molecular weight less than 2000 are hygroscopic.
	www.gujchem.com /polyethylene-gycol.html (1000 words)

	PROCESS FOR GRANULATING POLYETHYLENE OXIDE
		Polyethylene oxides are known to form a dissolution rate-controlling matrix for therapeutically active dosage forms.
		Polyethylene oxide can be granulated alone or in combination with one or more other components.
		Preferably, polyethylene oxide forms the matrix of a solid composition to be granulated.
	www.priorartdatabase.com /IPCOM/000018940 (382 words)

	Ethylene oxide - Wikipedia, the free encyclopedia
		The chemical compound ethylene oxide is an important industrial chemical used as an intermediate in the production of ethylene glycol and other chemicals, and as a sterilant for foodstuffs and medical supplies.
		Ethylene oxide gas kills bacteria (and their endospores), mold, and fungi, and can therefore be used to sterilize substances that would be damaged by sterilizing techniques such as pasteurization that rely on heat.
		Ethylene oxide is also important in the manufacture of surfactants and other detergents, in a process called ethoxylation.
	en.wikipedia.org /wiki/Ethylene_oxide (719 words)

	Ruth Aydt (Site not responding. Last check: 2007-10-31)
		The polyethylene oxide can be made to siphon "uphill" out of the beaker and against gravity.
		Polyethylene oxide is a water soluble, non ionic, high molecular weight polymer.
		Polyethylene oxide is used to both thicken and a soft silky feel to many shampoos, hair conditioners, cold creams, lotions, latex paint, and detergents.
	www.elmhurst.edu /~chm/demos/siphonpolymer.html (437 words)

	DUPOlY polyethylene encapculatin process
		As polyethylene encapsulated DU will attenuate neutron as well as gamma radiation, there is currently significant interest for its use in spent fuel storage and transport casks and low level waste storage, transport and disposal packages.
		Polyethylene encapsulated DU 2x4 samples were compression tested in accordance with ASTM D-695, "Standard Method of Test for Compressive Properties of Rigid Plastics".[11] Testing was done using a Soiltest hydraulic compression tester at an unloaded crosshead deflection rate of 1.3 ± 0.3 mm (0.05 ± 0.01 in.)/min.
		Polyethylene encapsulated DU forms containing 50, 70 and 90 wt% batch process UO were leach tested in accordance with ASTM C1308.[12] This Accelerated Leach Test (ALT), developed at BNL, was devised to enable prediction of a sample leach rate providing data fits a diffusion-controlled model.
	www.bnl.gov /des/ertd/TechDevelApp/dup_paper.asp (3246 words)

	Polyethylene Terephthalate (PETP)
		Polyethylene terephthalate in the form of waste fibres and disposable soft drink bottles was subjected to depolymerisation through aminolysis using excess of ethanolamine in the presence of different simple chemicals, namely glacial acetic acid, sodium acetate and potassium sulphate, as catalysts.
		The isothermal crystallisation kinetics and morphology of ethylene terephthalate-ethylene oxide copolymers and PETP and polyethylene oxide homopolymers were studied by DSC and TEM.
		The adhesion between poly(ethylene terephthalate) cord, treated with hydrated silica-resorcinol-hexamethoxymethylmelamine or resorcinol-formaldehyde-latex, and nitrile-butadiene rubber was studied by T-test and H-test strength, FTIR and SEM.
	www.polymerlibrary.com /polyethyleneterephthalate.html (2892 words)

	2000 Fire Publications - Flame Retardant Mechanism of Silica Gel/Silica. (Site not responding. Last check: 2007-10-31)
		Various types of silica, silica gel, fumed silicas and fused silica were added to polypropylene and polyethylene oxide to determine their flame retardant effectiveness and mechanisms.
		Polypropylene was chosen as a non-char-forming thermoplastic and polyethylene oxide was chosen as a polar char-forming (slight) thermoplastic.
		Polyethylene oxide samples with fumed silicas and silica gel formed physically strong char/silica surface layers.
	www.fire.nist.gov /bfrlpubs/fire00/art174.html (356 words)

	2000 Fire Publications - Flame Retardant Mechanism of Silica Gel/Silica. (Site not responding. Last check: 2007-10-31)
		Various types of silica, silica gel, fumed silicas and fused silica were added to polypropylene and polyethylene oxide to determine their flame retardant effectiveness and mechanisms.
		Polypropylene was chosen as a non-char-forming thermoplastic and polyethylene oxide was chosen as a polar char-forming (slight) thermoplastic.
		Polyethylene oxide samples with fumed silicas and silica gel formed physically strong char/silica surface layers.
	fire.nist.gov /bfrlpubs/fire00/art174.html (356 words)

	'polyethylene oxide' related products for sale (Site not responding. Last check: 2007-10-31)
		The purpose of this study was to assess the potential use of poly(ethylene oxide) (PEO) as matrix-forming material for tablets and extrudates.
		Polyethylene glycol (PEG) and polyethylene oxide (PEO) are polymers composed of repeating subunits of identical structure, called monomers, and are the most
		Polyethylene glycol (PEG) and polyethylene oxide (PEO) are polymers composed of Poly (ethylene glycol) or poly (ethylene oxide) refers to an oligomer or
	www.infobooker.com /p/polyethylene-oxide.html (121 words)

	Ethylene Oxide Derivatives, Ethylene Oxide Condensate India
		Ethylene oxide is a very important industrial chemical used as an intermediates for the production of other chemicals and sterilant for the manufacturing of rubber, paint, leather processing, Industrial Surfactants, Paper, Textile, Metal processing, Latex and Waxes, Household surfactants, Detergents, Pharmaceuticals Raw materials, Dyeing and finishing, Agrochemicals, Cosmetics raw material are applications.
		Shree Vallabh chemicals is one of the leaders in manufacturing of Ethylene oxide derivatives.
		We are one of the dominating player in the production of ethylene glycol, glycol ethers, polyethylene glycol, polyether polyols and other...
	www.shreechem.in (116 words)

	UWEB :: Research : Biomaterials Tutorial
		Polyethylene glycol (PEG), or polyethylene oxide (PEO), is a liquid or a wax-like solid at lower molecular weight and is crystalline at higher molecular weight.
		It is a soluble polymer synthesized from ethylene oxide.
		PEG is used in many applications in various industries, such as biomedicine, pharmaceuticals, cosmetics, and agriculture due to its broad chemical compatibility, water solubility, non-toxicity, biocompatibility, and multiple physical states.
	www.uweb.engr.washington.edu /research/tutorials/pegpeo.html (248 words)

	Polyethylene Oxide (PEO)
		Function: Potent retention aid for high-yield pulps and for furnish to which a phenolic cofactor has been added; in theory it can be used as a formation aid for specialty applications where there is an insignificant amount of lignin or cofactor and where the drainage rate is not a concern.
		Strategies for Use: Polyethylene oxide has been used as a retention aid since the 1970's in various Canadian newsprint mills and other applications with high-yield pulps.
		In most of these cases the retention efficiency is maximized by first adding various proprietary phenolic compounds that appear to interact with the PEO and allow it to bridge between the adjacent solid materials in the furnish.
	www4.ncsu.edu /~hubbe/PEO.htm (524 words)

	Molecules form nano containers TRN 110304
		Depending on the length of the polyethylene oxide molecule, the resulting structures are either individual nested compartments or long and worm-like with segmented cores.
		The hydrocarbon and fluorocarbon components form the core of the structure so that they are protected from water by the polyethylene oxide.
		Units of the fluorocarbon are surrounded by the hydrocarbon, and stacks of these encapsulated units are encased in the polyethylene oxide.
	www.trnmag.com /Stories/2004/110304/Molecules_form_nano_containers_Brief_110304.html (248 words)

	Polyethylene Encapsulation of Depleted Uranium
		] polyethylene encapsulated DU, because of its workability and high DU loading capability, could readily be fabricated as counterweights/ballast (for use in airplanes, helicopters, ships and missiles), flywheels, armor, and projectiles.
		Also, polyethylene encapsulated DU is an effective shielding material for both gamma and neutron radiation, with potential application for shielding high activity waste (e.g., ion exchange resins, glass gems), spent fuel dry storage casks, and high energy experimental facilities (e.g., accelerator targets) to reduce radiation exposures to workers and the public.
		Treatment of DU materials by polyethylene encapsulation is a desirable option because of the immediate availability of the technology and proven record to effectively and efficiently process similar powder and granular materials.
	www.bnl.gov /des/ertd/TechDevelApp/dup_ss.asp (630 words)

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