Abstract: This invention is directed to a composition comprising a complex reaction product of an oil soluble cobalt soap and an oil soluble overbased calcium soap which serves as a "loss of dry" inhibitor, particularly in an oil-based paint, and as an accelerator with gel-time stabilizer and color development inhibitor characteristics in polyester polymerization.

Abstract: An unsaturated polyester resin and low profile additive containing diketo groups.

Abstract: Highly branched, functionalized, wholly aromatic poly(arylenes) are prepared by the polymerization of AB.sub.n -type aromatic monomers.

Abstract: The present invention relates to the discovery and development of a novel class of phase stabilization additives for thermoset polyester resins. The use of these materials imparts improved glass read out and superior homogeneity when compared to art-disclosed systems thus producing an overall improved Class A quality thermoset polyester resin surface finish for a variety of products.The phase-stabilizing agents or additives of the present invention comprise a select group of compounds from three classes: fatty acids, dimer acids, and polyester polyols. More specifically, the phase-stabilizing agents of the present invention comprises a compound selected from the group consisting of:(i) a saturated or unsaturated C.sub.5 to C.sub.28 fatty acid;(ii) a C.sub.20 to C.sub.54 dimer acid or trimer acid; or(iii) a polyester polyol having an average molecular weight of about 200 to about 6,500.

Abstract: A method of preparing curable solid polyester resin pellets and powders comprising(a) preparing a liquid mixture consisting essentially of an unsaturated polyester resin, at least one monomeric unsaturated polymerizable material containing a terminal ethylene group, and an alkaline earth metal oxide or hydroxide in an amount effective to provide a desired increase in viscosity,(b) allowing the liquid mixture to stand until the alkaline earth metal oxide or hydroxide and the polyester co-react, and a desired increase in viscosity has been attained,(c) dispersing in the mixture obtained in (b), a polymerization initiator and a filler, fibrous reinforcing material, pigment or mold release agent, or mixtures thereof,(d) extruding the mixture obtained in (c) to form dry, free-flowing pellets or powdersis described. The pellets and powders prepared in this manner are specifically suitable for molding techniques such as injection, compression or transfer molding operations.

Abstract: Unsaturated polyester resins containing--as additive--polyesterurethanes having free carboxyl groups and/or terminal radically polymerizable double bonds are good starting materials for manufacturing moulded articles with outstanding properties, particularly with an excellent impact strength.

Abstract: This invention relates to a process of preparing aqueous slurries of vesiculated granules of crosslinked polyester resin wherein the granules have a maximum shrinkage on drying of 5% of the granule diameter. Previously-known processes for the preparation of granules of this type have utilized polyamines; this has led to odor and color problems. These problems may be eliminated or substantially reduced by the use of bases which are metal oxides, hydroxides or salts wherein the metal cation is selected from Ca, Mg, Ba, Ti, Zn, Pb, Sr and Co and, when a metal salt is used, the pKa value of the conjugate acid of the anion is greater than 2. The resulting granules are useful at matting and opacifying agents in, for example, paint compositions.

Abstract: An unsaturated polyester resin composition comprises an unsaturated polyester resin, an unsaturated monomer capable of reacting with the unsaturated polyester to form cross-linkages, and a colorant-thickener dispersion that comprises (a) 20% to 50% by weight of a thickener comprising a Group II-A metal oxide or hydroxide, 5% to 20% by weight of a pigment component, and 30% to 75% by weight of an unsaturated polyester vehicle that comprises 80% to 98% by weight of at least one unsaturated polyester that is the product of the reaction of a dicarboxylic acid component containing 80 to 90 mole % of at least one unsaturated aliphatic dicarboxylic acid having 4 to 8 carbon atoms and 10 to 20 mole % of at least one saturated aromatic dicarboxylic acid with an alcohol component containing 40 to 60 mole % of at least one glycol having 2 to 6 carbon atoms and 40 to 60 mole % of at least one monohydric alcohol having 6 to 12 carbon atoms, in the amount of 0.4 mole to 0.

Abstract: A polyester resin composition comprises(a) an unsaturated polyester resin,(b) an unsaturated monomer capable of reacting with the unsaturated polyester resin to form cross-linkages, and(c) a thickening agent that comprises(1) 25% to 70% by weight of a Group II-A metal oside or hydroxide and(2) 30% to 75% by weight of an unsaturated polyester vehicle comprising an unsaturated polyester that is the product of the reaction of a dicarboxylic acid component that contains at least one unsaturated aliphatic dicarboxylic acid and at least one saturated aromatic dicarboxylic acid with an alcohol component that contains at least one glycol and at least one monohydric alcohol.

Abstract: A colorant-thickener dispersion for unsaturated polyester resin compositions comprises(a) 20% to 50% by weight of a thickener comprising a Group II-A metal oxide or hydroxide,(b) 5% to 20% by weight of a pigment component, and(c) 30% to 75% by weight of an unsaturated polyester vehicle that comprises(1) 50% to 100% by weight of at least one unsaturated polyester that is the product of the reaction of a dicarboxylic acid component containing 80 to 90 mole % of at least one unsaturated aliphatic dicarboxylic acid having 4 to 8 carbon atoms and 10 to 20 mole % of at least one saturated aromatic dicarboxylic acid with an alcohol component containing 40 to 60 mole % of at least one glycol having 2 to 6 carbon atoms and 40 to 60 mole % of at least one monohydric alcohol having 6 to 12 carbon atoms, in the amount of 0.4 mole to 0.

Abstract: A thickening agent for unsaturated polyester resin compositions comprises(a) 25% to 70% by weight of a Group II-A metal oxide or hydroxide and(b) 30% to 75% by weight of an unsaturated polyester vehicle comprising(1) 50% to 100% by weight of an unsaturated polyester that is the product of the reaction of a dicarboxylic acid component that contains at least one unsaturated aliphatic dicarboxylic acid and at least one saturated aromatic dicarboxylic acid with an alcohol component that contains at least one glycol and at least one monohydric alcohol and(2) 0-50% by weight of an unsaturated monomer capable of reacting with the unsaturated polymer to form cross-linkages.

Abstract: Glass-reinforced polyester molding compositions when mixed with lactone polymers and vinyl chloride polymers as additives afford molding compounds with greater shrinkage control and molded parts with smoother surfaces.

Abstract: This invention relates to an improved, matured, moldabe, thermosetting polyester resin system which includes at least two different polyester resins, one of which is faster reactive and containing a minor amount of isophthalic acid and the other of which is slower reactive and devoid of such acid, such system also including suitabe reinforcing fibers and inert filler along with an organic polyisocyanate, a metallic oxide or hydroxide, an aliphatically-unsaturated monomer, a free radical polymerization catalyst, and an internal mold release agent, the resin system being especially useful for pressure molding of precisely-formed articles having greatly improved impact resistance and flexibility.

Abstract: A thickening agent for unsaturated polyester resin compositions comprises(a) 25% to 70% by weight of a Group II-A metal oxide or hydroxide and(b) 30% to 75% by weight of an unsaturated polyester vehicle comprising(1) 50% to 100% by weight of an unsaturated polyester that is the product of the reaction of a dicarboxylic acid component that contains at least one unsaturated aliphatic dicarboxylic acid and at least one saturated aromatic dicarboxlyic acid with an alcohol component that contains at least one glycol and at least one monohydric alcohol and(2) 0-50% by weight of an unsaturated monomer capable of reacting with the unsaturated polyer to form cross-linkages.