Abstract: A thermoplastic copolyester is formed of at least one aromatic dicarboxylic acid member, at least one aliphatic dicarboxylic acid member (an alkyl- or alkenyl-substituted succinic acid or anhydride thereof), and at least one C.sub.2 -C.sub.10 glycol. Particularly preferred copolyesters are those wherein at least one non-polymeric polyfunctional member is added to the base copolyester composition to function as a chain-extender therefor. The resultant copolyester is useful as an adhesive both by itself and as an ingredient of hot melt or solution adhesive formulations.

Abstract: A copolyester is formed of at least one aromatic dicarboxylic acid member, at least one aliphatic dicarboxylic acid member (an alkyl- or alkenyl-substituted succinic acid or anhydride thereof), at least one C.sub.2 -C.sub.10 glycol, at least one polymeric polyol member, and an optional polymeric polycarboxylic acid member. The polymeric polyol member is either a polymeric polyol having a molecular weight of 300-3,000, or a mixture of polymeric diol having a molecular weight of 300-3,000 and a non-polymeric polyol. The polymeric polyol may be a polyester such as polycaprolactone or a polyether such as a trimethylolpropane/propylene oxide adduct. The preferred resultant thermoplastic copolyester has a glass transition temperature of less than 0.degree. C. and a high polymer melting temperature. It is useful as an adhesive both by itself and as an ingredient of hot melt or solution adhesive formulations.

Abstract: Saturated polyester compositions stabilized against thermal degradation by the addition of small amounts of a synergistic stabilizing combination of a 5 or 6 membered, cyclic organic carbonate and an antioxidant selected from the group consisting of certain alkylated phenols, polyphenols, alkylphosphites, arylphosphites, aromatic amines and aromatic polyamines.

Abstract: Saturated polyester compositions stabilized against thermal degradation by the addition of small amount of a synergistic stabilizing combination of a 5 or 6 membered, cyclic organic carbonate and an antioxidant selected from the group consisting of certain alkylated phenols, polyphenols, alkylphosphites, arylphosphites, aromatic amines and aromatic diamines.

Abstract: A copolyester is formed of at least one symmetrical aromatic dicarboxylic acid member, at least one dimer acid, and at least one C.sub.2 --C.sub.10 glycol, and at least one polyester polyol member. The polyester polyol member is either a polycaprolactone polyol having a molecular weight of 500-5,000, or a mixture of a polycaprolactone diol having a molecular weight of 300-5,000 and a nonpolymeric polyol. The resultant thermoplastic copolyester has a glass transition temperature of less than 25.degree.C and a polymer melting temperature greater than 70.degree.C, and is useful both as a hot melt adhesive by itself and as an ingredient of both pressure sensitive and non-pressure sensitive hot melt adhesive formulations. In producing the copolyester, an intermediate copolyester of the symmetrical aromatic dicarboxylic acid member, the dimer acid, and the glycol is chain extended by reaction with the polyester polyol member in a 2-6 hour reaction at about 225.degree.-270.degree.C under a vacuum of about 1-30 mm.

Abstract: Photoconductive coating compositions for application to solid substrates which are to be utilized in electrophotographic operations are described; the resultant photoconductive coatings comprise a layer of photoconductive pigment particles bonded to themselves and to the solid substrate with a binder comprising a novel interpolymer, at least one of whose constituent monomers contains bromine. Novel bromine-containing monomers are also disclosed.