Abstract: The invention relates to wire enamels based on polyester, polyesterimide, polyesteramidoimide and/or polyurethane resins, which contain one or more of said resins as binders, and organic solvents and optionally diluents. At least 50% by weight of the solvent or of the solvent/diluent mixture consists of a monocyclic aromatic alkyl-carboxylic acid ester or isophorone or of a mixture of methyl benzoate and isophorone.

Abstract: The invention relates to wire enamels based on polyester, polyesterimide, polyesteramidoimide and/or polyurethane resins, which contain one or more of said resins as binders, and organic solvents and optionally diluents. At least 50% by weight of the solvent or of the solvent/diluent mixture consists of a monocyclic aromatic alkyl-carboxylic acid ester or isophorone or of a mixture of methyl benzoate and isophorone.

Abstract: A method for making polyesterimide varnishes by polycondensing and imidat a mixture of trimellitic anhydride, 4,4'-diamino-diphenyl methane, glycol, dimethyl terephthalate and glycerol or tris(hydroxyethyl) isocyanurate or optionally p,p'-dihydroxy-diphenyl-dimethyl methane, with a transesterification catalyst added, and subsequently dissolving the resulting polyesterimide resin in an organic solvent with a crosslinking catalyst added, characterized by the feature that 2-methyl-1,3-propanediol and/or 2-butyl-2-ethyl-1,3-propanediol is used as the glycol or as one of the glycols.

Abstract: There is disclosed thermoplastic polymeric compositions of polycarbonates, polyamides, polyacetals, and poly(2,6-dimethyl-1,4-phenylene oxides) and which contain in a minor amount sufficient to make the thermoplastic polymeric material easily releasable from a processing mold of fatty acid ester.

Abstract: The invention relates to a process for manufacturing unsaturated polyester resins with suppressed volatilization of monomer, useful in the manufacture of laminates, moulding compounds, varnish coatings and castings. It is known a process for manufacturing unsaturated polyester resins by dissolving unsaturated polyesters in monomers with the addition of paraffin, waxes, ceresin wax, emulsifiers forming emulsions of the "water-in-oil" or "oil-in-water" type. These additives suppress the volatilization of monomers, but they exhibit a limited solubility in the resin and a majority of them separate on the surface during curing of the polyester resin and, thus, reduce the adhesion capacity of the subsequent layers of resin or laminates to the previously cured substrate.It has been found that unsaturated polyester resins with suppressed volatilization of monomer can be prepared by dissolving the unsaturated polyester in the monomer and by introducing 0.005-5.