ETERES Y EPOXIDOS PDF

Scribd is the world’s largest social reading and publishing site. Dr. Orlando Muñoz GUIA DE EJERCICIOS 1. Alcoholes – Fenoles – Esteres – Epóxidos – Tiocompuestos Señale la estructura de los siguientes compuestos. View eteres y epoxidos en la industria 2do from QUìMICA 11 at Universidad Central de Venezuela. TERES Definicin: Son.

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Se identifico mas tarde positivamente en diversas otras especies de salvia, tales como por ejemplo Salvia canariensis [Savona y Bruno, J.

AMINAS, ÉTERES Y EPÓXIDOS by Erika Dávalos on Prezi

En el ejemplo particular del trifluoroyodometano, uno de los productos de descomposicion potenciales importantes en ciertas condiciones severas es trifluorometano, que se forma por la sustitucion del yodo por hidrogeno en la molecula CF3I. Teniendo presente la descripcion de esta memoria, los expertos en la tecnica seran facilmente capaces de preparar composiciones semejantes a azeotropos segun la presente invencion sin una experimentacion excesiva.

Examples of certain preferred aromatic epoxides include butylphenyl more glycidyl ether. In eterds preferred embodiments, the step of replacing is a direct replacement, in the sense that no substantial redesign of any system and no important piece of equipment needs to be replaced to accommodate the refrigerant of the present invention is required.

Five 50 fifty 55 55 60 60 semejantes a azeotropos, de la presente invencion exhiben propiedades que hacen ventajosas las mismas para uso como, o en, numerosas aplicaciones, que incluyen composiciones de transmision de calor con inclusion de refrigerantes de acondicionamiento de aire para automoviles y sistemas de bomba de calor, y sistemas estacionarios de acondicionamiento de aire, bomba de calor y refrigeracionagentes de soplado, propelentes y agentes de esterilizacion.

Any suitable relative amount of at least one diene-based compound or more compounds optional supplemental stabilizers can be used and one.

In the case of diene-based compounds epoxidps are formed by a combination of C3-C5 dienes, the molecules which are combined can be the same or different.

Tales sistemas de refrigeracion incluyen, por ejemplo, acondicionadores de aire, refrigeradores electricos, congeladores con inclusion de congeladores que utilizan compresores centnfugossistemas de refrigeracion de transporte, y sistemas de refrigeracion comerciales.

A refrigerant comprising the composition of heat transmission of claim Examples of suitable lubricants, which are generally those commonly used in refrigeration machinery using or is designed to use refrigerants hydrofluorocarbon HFC refrigerants chlorofluorocarbon coolants and hydrochlorofluorocarbons, include mineral oil, silicone oil, polyalkyl benzenes a referred to sometimes as BAPs is madepolyol esters referred to sometimes as SOPs donepolyalkylene glycols referred to sometimes as PAGs donepolyalkylene glycol esters a referred to sometimes as PAG-esters madepolyvinyl ethers referred to sometimes as PVEs becomespoly alpha-olefins what is sometimes referred to as PAOs is madeand oils halocarbons, particularly poly chlorotrifluoroethylene.

In Rosmarinus officinalis [J. As used herein, the term “isoprene moiety” refers to any portion of a molecule comprising a radical which can be formed by substituted or unsubstituted isoprene. A method of replacing an existing refrigerant contained in a refrigerant system comprising removing at least a portion of said existing refrigerant from said system and replacing at least a portion of said existing refrigerant by introducing into said system a refrigerant composition comprising the azeotrope-like composition any of claims 1 to 6.

Los terpenos segun la presente invencion que tienen la formula C10H16 con inclusion de formas sustituidas se designan a veces en esta memoria como monoterpenos, mientras que los terpenos que tienen la formula C15H24 con inclusion de formas sustituidas se designan a veces en esta memoria como sesquiterpenos.

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Los solicitantes han encontrado que en los sistemas de la presente invencion muchos de los parametros importantes de eficiencia del sistema de refrigeracion estan relativamente proximos a los parametros para RA. In certain embodiments, the thermoplastic composition capable of foaming is an extrudable composition.

HFCa in an approximate ratio HFO compounds are known materials and are included in the database Chemical Abstracts. The azeotrope of either anterior claims, consisting essentially of an amount ranging from greater than 0 to 85 weight percent transHFOze and from 15 to less than percent by weight of CF3I composition.

Preferred compositions cooling of the present invention may be used in refrigeration systems containing a lubricant used conventionally with CFC-refrigerants, such as mineral oils, polyalkyl, and polyalkylene glycols, or can be used with other lubricants traditionally used with HFC refrigerants.

Las composiciones semejantes a azeotropos de la invencion pueden incluir componentes adicionales que no forman nuevos sistemas semejantes a azeotropos, o componentes adicionales que no se encuentran en el primer corte de destilacion. Five 50 fifty 55 55 basado en el peso total de la composicion refrigerante que esta constituida por el yodocarbono.

While it is contemplated that all such terpenes the are adaptable for use according to the invention is generally preferred to use monoterpenes. Un refrigerante que comprende la composicion de transmision de calor de la reivindicacion In certain preferred embodiments, the methods for cooling, including cooling of other direct or indirect fluid or a body directly or indirectly, comprise condensing a refrigerant composition comprising such a composition azeotropes of the present invention and evaporating thereafter said refrigerant composition in the vicinity of the fluid or body to be cooled.

In the particular example of trifluoroiodomethane, one of the major potential decomposition products under certain severe conditions is trifluoromethane, which is formed by replacing the iodine by hydrogen in CF3I molecule. Alternativamente, esta disponible en el comercio una extensa gama de instrumentos de carga, conocidos por los expertos en la tecnica.

DECORACIONES EN LA ALHAMBRA by Bea García P on Prezi

A cooling system of claim 20 selected from the group consisting of air conditioning systems for automobiles, conditioning systems residential air conditioning systems commercial air cooling residential systems, residential freezer systems, commercial frigonficoscommercial freezers systems, chiller air eterss systems, chiller refrigeration systems, heat pump systems, and combinations of two or more thereof. An azeotropic mixture is a system of two or more components in which the composition of the liquid and vapor composition are equal at the stated pressure and temperature.

Ar is a phenylene or naphthylene unsubstituted or substituted moiety.

En ciertas realizaciones preferidas, las ratios en peso de compuesto s fenolico s a epoxido s aromatico s o alquil- o alquenil-epoxido salquil-epoxido s multisustituido s o alquil-epoxido s fluorado s es desde aproximadamente 30 a aproximadamente 1, de modo mas preferible desde aproximadamente 7 a aproximadamente 1, de modo mas preferible desde aproximadamente 2 a aproximadamente 1, y de modo aun mas preferible aproximadamente 1: Ejemplos de otros epoxidos aromaticos adecuados incluyen bisoxiranos, tales como 2,2′-[[[5- heptadecafluorooctil]1,3fenileno]bis[[2,2,2trifluorometil]etilideno]oximetileno]-bisoxirano.

En ciertas otras realizaciones preferidas, los compuestos basados en dieno comprenden en proporcion muy importante, y de modo aun mas preferible estan constituidos esencialmente por, terpenos, derivados terpenicos o combinaciones de estos.

Accordingly, in further embodiments, the present invention provides compositions epoxidso methods associated with these and other uses. The present compositions have utility in a wide range of applications. La composicion epoxidoss transmision de calor de la reivindicacion eterees en donde dicho lubricante se selecciona del grupo constituido por aceite mineral, aceite de silicona, polialquilbencenos PABspoliol-esteres POEseoxidos PAGspolialquilenglicol-esteres PAG-esterespolivinil-esteres PVEspoli alfaolefinas PAOsy combinaciones de estos.

Examples epoxiros terpene derivatives of the present invention include oxygenated derivatives of terpenes such as alcohols, ketones or aldetudos containing hydroxyl groups or carbonyl groups, asf as hydrogenated derivatives.

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As the term is used herein, “diene-based compound” refers to C3-C5 dienes and compounds formed by reaction of two or more C3-C5 dienes.

Guia Eteres Fenoles Alcoholes Epoxidos Tiocompuestos

The terpenes according to the present invention having C10H16 formula including substituted forms are sometimes referred to herein as monoterpenes, while terpenes having the C15H24 formula including substituted forms are sometimes referred to herein as sesquiterpenos.

HFCa in a ratio La cantidad relativa de cualquiera de los componentes arriba indicados, asf como cualesquiera componentes adicionales que pueden incluirse en las presentes composiciones, pueden incorporarse en la presente composicion en cantidades que dependen de la aplicacion particular para la composicion, y se considera que la totalidad de dichas cantidades relativas estan dentro del alcance de esta invencion. A mineral oil comprising oil or naphthenic oil parafrnico, is commercially available.

Un sistema de refrigeracion de la reivindicacion 20 seleccionado del grupo constituido por sistemas de acondicionamiento de aire para automoviles, sistemas de acondicionamiento de aire residenciales, sistemas de acondicionamiento de aire comerciales, sistemas de refrigeracion residenciales, sistemas congeladores residenciales, sistemas de frigonficos comerciales, sistemas congeladores comerciales, sistemas enfriadores de acondicionamiento de aire, sistemas enfriadores de refrigeracion, sistemas de bomba de calor, y combinaciones de dos o mas de estos.

Some representative materials are sold under the DC, B and L which are names, generally, polysiloxane polyoxyalkylene copolymers of blocks such as disclosed in US Pat. Preferred compositions of the present invention tend to exhibit many of the desirable caractensticas refrigerant HFCa and other HFC refrigerants, including a GWP that is as low as, or lower than that of conventional HFC systems, and a capability that it is substantially similar to or substantially matches, and preferably is as high or higher than such refrigerants.

The azeotrope-like compositions of the present invention may additionally include any of a variety of optional additives including lubricants, stabilizers, metal passivators, corrosion inhibitors and flammability suppressants.

Por ejemplo, un metodo comprende unir un recipiente del refrigerante al lado de baja presion de un sistema de refrigeracion y poner en marcha el compresor del sistema de refrigeracion para introducir el refrigerante en el sistema. HFC in approximate Certain preferred formula II epoxides include alkyl compounds epoxide wherein RALK is an alkyl group having from about 1 to about 10 carbon atoms, more preferably from about 1 to about 6 carbon atoms, and wherein alkyl may be unsubstituted or further substituted with one or more substituents including alkyls, alkenyls, alkynyls, aryls, alkylaryls, halogens, halogenated alkyls, halogenated alkenyls, halogenated alkynyls, halogenated aryls, halogenated arylalkyls, hydroxyls, heteroatom moieties and.

Terpenes containing 30 or more carbons by two terpene precursors fusion are usually formed in a regular pattern. Other uses of the present azeotrope-like compositions include use as solvents and cleaning agents.

Otros esteres utiles incluyen esteres fosfato, esteres de acidos dibasicos y fluoroesteres. HFCa in a mass ratio 738: Analogamente, el yodo puede sustituirse por hidrogeno en otros yodocarbonos, formando con ello compuestos que pueden tener valores GWP mayores que In other embodiments, the invention provides compositions transformable foam.

En muchas realizaciones preferidas, el compuesto terpenico de la presente invencion comprende al menos un producto de epoxido cabeza-a-cola de moleculas de isopreno modificadas o no modificadas.

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