Alkyd molding compound

Aromatic polyester Unsaturated polyester Alkyd molding compounds ... 

One case is that of the TS polyester materials such as the alkyd molding compounds. 

Alkyd molding compounds, when molded into finished parts, may have excellent arc resistance (180 sec. minimum) and excellent arc track resistance. Other good electricals such as dielectric strength and insulation resistance can be obtained. The filler combinations may also result in excellent dimensional stability and outstanding retention of electrical and physical properties after exposure to elevated temperatures (450°F.) for long periods of time. Water absorption values are extremely low, which helps to maintain electrical values. 

Alkyd molding compounds produce parts which are quite light stable and may be formulated in a wide range of color. Black, red, and natural are the most popular colors. 

The alkyd molding compounds, depending on the form of the material, may be molded on a wide range of conventional molding equipment. Because of the short time required to cure the compounds, extremely fast molding cycles are possible. 

Alkyd molding compound n. A compound based on an alkyd resin containing fillers, pigments, lubricants, and other additives. Alkyd molding compounds are chemically similar to polyesters, but the term alkyd is usually applied to those polyester formulations that use lesser quantities of monomers of the high-viscosity or dry types, resulting... 

Alkyd resin n. A polyester resin resulting from the condensation of a polyfunctional alcohol and acid, typically glycerine and phthalic anhydride. Today the term is mostly used for (1) resins modified with drying oils and used as vehicles for varnishes and paints and (2) for cross-linking resins in alkyd molding compounds. The word alkyd is an acronym, from al- for alcohol, and -cid (changed to kyd) for acid. G Alkydharz n, F resine alkyde, resine f, S resina alquidica, resina f, I resina alchidica, resina f. ... 

Polyester pa-le- es-t9r [ISV] (1929) (alkyd) n. A general term encompassing all polymers in which the main polymer backbones are formed by the esterification condensation of polyfimctional alcohols and acids. The coined term alkyd (see alkyd resin) is synonymous, chemically, with polyester. However, as more commonly used in the plastics industry, alkyd refers to polyesters modified with oils or fatty acids that are cross-hnkable (see alkyd molding compound). The term polyester is explained further under polyester, saturated and polyester, unsaturated. 

AMC alkyd molding compound AMW average molecular weight AN acrylonitrile... 

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