ETERES Y EPOXIDOS PDF

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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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A blowing agent comprising an azeotrope-like composition of any of claims 1 to 6. Como se utiliza en esta memoria, el termino “resto isopreno” se refiere a cualquier porcion de una molecula que incluye un radical, que puede estar formado por isopreno sustituido o insustituido. Asf, sometimes referred to herein will be made to the components other than transHFOze and CF3I having suppressive flammability functionality in the composition as a supplemental flammability suppressant.

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.

A further embodiment of the present invention relates to a blowing agent comprising one or more azeotropic compositions of the invention. Esters commercially available include neopentyl glycol dipelargonate which is available as Emery registered trademark and Hatcol registered trademark. HFCa en una ratio 73,8: Una forma de determinar si la adicion de un componente forma un nuevo sistema semejante a azeotropo para que quede fuera de esta invencion consiste en destilar una muestra de la composicion con el componente en condiciones que podna esperarse separaran una mixtura no azeotropica en sus componentes separados.

Guia Eteres Fenoles Alcoholes Epoxidos Tiocompuestos

Pueden utilizarse cualquiera de una diversidad de compuestos adecuados para estabilizacion de una composicion semejante a azeotropo de la presente invencion.

Se cree que las presentes composiciones son adecuadas tambien como reemplazamientos para las composiciones arriba indicadas en otras aplicaciones, tales como aerosoles, y agentes de soplado. La composicion de transmision de calor de la reivindicacion 15 en donde dichos uno o mas supresores de la llama juntos estan presentes en una cantidad que va desde 0,5 por ciento a 30 por ciento en peso de la composicion de transmision de calor.

En tales realizaciones, el recipiente del In such embodiments, the container 5 5 10 10 15 fifteen 20 twenty 25 25 30 30 35 35 40 40 45 Four. PAG esters are available commercially available from Chrysler.

Acta 47, ] y por Wenkert et al. Las composiciones semejantes a azeotropos de la presente invencion pueden incluir adicionalmente cualquiera de una diversidad de aditivos opcionales que incluyen lubricantes, estabilizadores, pasivadores de metales, inhibidores de corrosion y supresores de inflamabilidad.

Alquenil-epoxidos mas preferidos incluyen alil-glicidil-eter. HFO compounds are known t and are included in the database Chemical Abstracts. Los epxidos segun la presente invencion que tienen la formula C20H32 con inclusion de formas sustituidas se designan a veces en esta memoria como diterpenos, mientras que los terpenos que tienen la formula C30H48 con inclusion de formas sustituidas se designan a veces como triterpenos, y asf sucesivamente.

Por ejemplo, ciertos aspectos de la presente eterez implican la aplicacion de la presente composicion a tejido humano para uno o mas propositos terapeuticos, tales como una tecnica de analgesia, como un anestesico preparatorio, o como parte de una terapia que implica reduccion de la temperatura del cuerpo a tratar. Un agente de soplado segun la reivindicacion 22, en donde este agente de soplado comprende al menos 5 por ciento en peso de la composicion semejante a azeotropo de cualquiera de las reivindicaciones 1 a 6.

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En realizaciones mas preferidas, la ratio en peso de compuesto s basado s en dieno a los estabilizadores opcionales es de aproximadamente The composition of Claim 7 wherein the adjuvant is a stabilizer, wherein the stabilizer is present in an amount effective as stabilizer, and wherein the stabilizer is selected from the eposidos consisting of compounds based on dienes, phosphates, phenolic compounds and epoxides, and combinations of two or more thereof.

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. Even without the consideration of GWP values, breakdown of a component of a refrigerant composition is undesirable.

En ciertas realizaciones preferidas, el o los compuestos terpenicos de las presentes composiciones comprende npreferiblemente en mayor proporcion, y etwres modo aun mas preferible estan constituidos esencialmente por, uno o mas compuestos terpenicos adclicos. Additionally, applicants have surprisingly recognized that can be formed and transHFOze compositions CF3I azeotrope.

AMINAS, ÉTERES Y EPÓXIDOS by Erika Dávalos on Prezi

Algunos materiales representativos son vendidos bajo los nombres DC, B y L que son, por fpoxidos general, copolfmeros de bloques polisiloxano-polioxialquileno eterss como los descritos en las Patentes US Nums. Ejemplos de tales alquil-epoxidos preferidos de formula II incluyen n-butil-glicidil-eter, isobutil- glicidil-eter y hexanodiol-diglicidil-eter, asf como alquil-epoxidos fluorados y perfluorados.

For example, certain aspects of the present invention involve the application of the present composition to human tissue for one or more purposes therapeutic, such as a technique of analgesia, as a preparatory anesthetic, or as part of a therapy involving reducing the temperature the body being treated. 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.

En ciertas realizaciones, la composicion termoplastica susceptible de transformacion en espuma es una composicion extrudible. It should be understood that all such compositions are etere by the “azeotrope-like” and “constant boiling” terms.

Certain other preferred embodiments of formula II epoxies comprise compounds alkenyl epoxide wherein RALK is an alkenyl group having from about 1 to about 10 carbon atoms, more preferably from about 1 to about 6 epozidos atoms, and wherein alkenyl 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.

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Eterss curable composition foaming of claim 24 wherein said one or more components capable of forming foam comprise one or more components capable of forming foam selected from the group consisting of thermoplastic foams, polystyrene foams, polyethylene foams, eterrs of low density polyethylene, extruded thermoplastic foams, polyurethane eetres, polyisocyanurate foams.

Alternatively, commercially available a wide range of loading instruments, known to those skilled in ereres art. Preferred terpenes of the present invention are hydrocarbons having molecular formula CsH8 n in a dclica or adclica structure, saturated or unsaturated, substituted or unsubstituted, n being preferably from 2 to about 6, and even more preferably 2 to 4.

Segun ello, en otras realizaciones, la presente invencion proporciona metodos de produccion de composiciones y preferiblemente composiciones semejantes a azeotropos, que comprenden una combinacion de transHFOze y CF3I, preferiblemente en cantidades epoxiros para producir una composicion semejante a azeotropo.

Guia Eteres Fenoles Alcoholes Epoxidos Tiocompuestos

Preferred compositions cooling of the present invention may be used in refrigeration systems containing a lubricant used conventionally with CFC-refrigerants, such as u oils, polyalkyl, and polyalkylene glycols, or can be used with other lubricants traditionally used with HFC refrigerants. The azeotrope of any of the preceding claims, consisting essentially of 1 to 40 weight percent transHFOze and from 60 to 99 percent by weight of CF3I composition.

Active materials suitable for pulverization include, without limitation, cosmetic materials such as deodorants, perfumes, hair sprays, cleaning solvents, and lubricants, polishing agents and asf as medicinal materials such as antiasthma and drugs. Ciertos epoxidos preferidos de formula II comprenden compuestos de alquil-epoxido en donde Ralk es un grupo alquilo que tiene desde aproximadamente 1 a aproximadamente 10 atomos de carbono, de modo mas preferible desde aproximadamente 1 a aproximadamente 6 atomos de carbono, y en donde el alquilo puede estar insustituido o sustituido ulteriormente con uno o mas sustituyentes que incluyen alquilos, alquenilos, alquinilos, arilos, alquilarilos, halogenos, spoxidos halogenados, alquenilos halogenados, alquinilos halogenados, arilos halogenados, arilalquilos halogenados, hidroxilos, y restos heteroatomicos.

Applicants have found that in systems of the present invention many of the important parameters of efficiency of the cooling system are relatively we next to the parameters for RA.

As used herein, it is understood that each of the compounds identified in the immediately preceding list includes forms both substituted and unsubstituted compounds identified. Examples of thermosetting compositions include polyurethane and polyisocyanurate foam, phenolic compositions asf as foams.

If t mixture is azeotrope-like, some finite amount of a first distillation cut containing all the components of the mixture that is constant boiling or behaves as a single substance. Los presentes metodos, sistemas y composiciones son adaptables por tanto para uso en conexion con sistemas y dispositivos de acondicionamiento del aire de automoviles, sistemas y dispositivos de refrigeracion comerciales, frigonficos con inclusion de sistemas que utilizan compresores centnfugosrefrigeradores y congeladores residenciales, sistemas generales de acondicionamiento de aire, y bombas de calor.