Abstract: Unsaturated polyester or polyesteramide compositions containing an unsaturated polyester/polyesteramide or mixture thereof, an ethylenically unsaturated monomer, and a dicyclopentadiene ester of an unsaturated polycarboxylic acid are prepared and used to cure resin compositions. The resin compositions have improved resistance to heat aging, reduced shrinkage upon curing, and improved corrosion resistance with excellent mechanical properties.

Abstract: This invention discloses a creep resistant thermoset molding composition which is of particular value as a material from which wheels can be made. The creep resistant molding composition of this invention is comprised of a mixture of a vinyl ester resin and a dicyclopentadiene polyester resin.

Abstract: Amino substituted acrylamide monomer is utilized as a coupling agent for reinforcing fibers and polyester base resin matrix in the production of thermosetting resin systems to enhance the bonding characteristics of the resin with the fiber while improving the flexural strength of the final composite structure.

Abstract: Thermoplastic compositions comprising, in intimate admixture, polyethylene terephthalate, a rubber-free copolymer of or a rubber-modified graft copolymer of a vinyl aromatic compound and an .alpha.,.beta.-unsaturated cyclic anhydride, a fibrous modifier, and a nucleating agent are disclosed. These compositions display desirable properties, particularly elevated heat deflection temperatures and good surface appearance.Also disclosed is a process for producing articles by injection molding the compositions at a hold pressure of about 5,000 to about 10,000 psi.

Abstract: Storage stable, polyester based compositions well adapted for hardening into molded shaped articles exhibiting virtually no shrinkage, are comprised of (i) an unsaturated polyester, (ii) a polymerizable, ethylenically unsaturated monomer copolymerizable therewith, (iii) an oligoester of the formula: ##STR1## and (iv) a condensate of such oligoester (I) with an unsaturated polyester.

Abstract: High molecular weight thermoplastic polyesters and polyester blends having unexpected improved impact strength by incorporating therein linear low density polyethylene and glass fibers.

Abstract: A thermosetting molding composition containing unsaturated polyester and carboxy-containing rubber exhibit improved surface gloss of molded articles when the composition further contains an unsaturated ester/potassium salt of phosphoric acid, such as potassium oleyl phosphate.

Abstract: The corrosion resistance of dicyclopentadiene (DCPD) modified unsaturated polyester or DCPD modified unsaturated polyesteramide resins can be improved by replacing a part of the styrene used as a reactant diluent in the resin with materials, such as divinylbenzene.

Abstract: Heat resistant resin compositions are prepared containing unsaturated polyester resins or polyesteramide resins terminated with a norbornene type group, an ethylenically unsaturated group, and a dicyclopentadiene ester of an unsaturated polycarboxylic acid.

Abstract: A resin composition for bonding of foundry sand, said composition comprising as a resin component a crystalline unsaturated polyester being solid and substantially tack-free at room temperature and having an acid value of 15 to 100, said unsaturated polyester being prepared by polymerizing (A) a dicarboxylic acid component containing 10 to 50 mole % of terephthalic acid, an alkyl terephthalate, isophthalic acid or an alkyl isophthalate and 50 to 90 mole % of fumaric acid and (B) a glycol component containing at least 90 mole % of ethylene glycol, trimethylene glycol, neopentyl glycol, hydrogenated bisphenol A or 2,2-d-(4-hydroxypropoxyphenyl)propane.

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: A low shrink unsaturated polyester based upon propylene glycol terephthalate reacted with a dibasic acid or anhydrides thereof and glycols and mixing the polyester with a filler, fibrous reinforcing agent and catalyst.

Abstract: Cocoa amine acetate and a polyamide condensate, in combination as a lubricant in a glass size, result in glass strands exhibiting less fuzz than does glass sized with a size containing either of the two components, individually.

Abstract: Curable polymeric products are the reaction product of a polymer containing secondary hydroxyl groups and an aliphatic unsaturated isocyanate.

Abstract: A composition for producing surface layers on wood or other substrates is formed from diatomite, expanded perlite, chopped glass fibers and a thermosettable resin mixed in specified amounts to provide a flowable mixture. When applied to the substrate as a layer about 1 to 2 cms. thick and the resin component has cured, a tough, impact-resistant, watertight surface is created on the substrate. The new compositions and surfacing methods are particuarly useful for refinishing the hulls of wooden boats.

Abstract: The addition of a select group of crosslinkable vinyl monomers to low shrinking polyester molding compositions containing unsaturated polyesters results in moldings with improved surface characteristics.

Abstract: Polyester and hardener compositions have incorporated therein pigments of Toluidine Red Y and Parachlor R to enable the user to determine when mixing is uniform and when the cure has been completed.

Abstract: An improved fire retardant polyester polymer system and composition comprising an interpolymer of a reaction product of hexachlorocyclopentadiene, a polyhydric alcohol, a carboxylic acid containing aliphatic carbon-to-carbon unsaturation, a styrene-type monomer, maleic acid or anhydride and a copolymerizable brominated neopentylacrylate comonomer.

Abstract: Disclosed is an anti-corrosive coating composition comprising (a) 100 parts by weight of an unsaturated polyester resin, (b) 10 to 100 parts by weight of a glass flake having an average thickness of 0.5 to 5 microns and an average particle size of 100 to 400 microns, or 10 to 70 parts by weight of said glass flake and 10 to 150 parts of scaly metal pigment, (c) 0.1 to 1.0 part by weight of a ketone peroxide and (d) 0.5 to 2.0 parts by weight of a hydroperoxide and/or a peroxy ester. Also disclosed is a process for forming anti-corrosive coatings, which comprises spray-coating the above anti-corrosive coating composition to a thickness of 300 to 1500 microns by using a spray gun having a spray tip diameter of 0.5 to 3 mm.

Abstract: A resin molded stator comprising a stator core and coils as major constituents at least parts of which are molded into one piece by a molding material, said molding material comprising (a) a low-shrink unsaturated polyester resin, (b) a filler having a particle size of 44 .mu. or less, and (c) a fibrous material having a length of 3 mm or less, in proportions of 15 to 40% by weight of the component (a) and 60 to 85% by weight of a total of the components (b) and (c), and a weight ratio of the component (b) to the component (c) being 3/1 to 30/1, is excellent in crack resistance, moisture resistance and insulating properties.

Abstract: Curable polymeric products are the reaction product of a polymer containing secondary hydroxyl groups and an aliphatic unsaturated isocyanate.

Abstract: An asphalt-modified polyester composition comprising an asphalt which has first been reacted with a polycarboxylic acid or anhydride and a polyalcohol; the modified asphalt is then reacted with a polyester and a vinyl aromatic monomer to produce a molding composition which is ideally suited for combination with a glass fiber reinforcement in the molding of rigid bodies reinforced with, for example, glass fibers.

Abstract: A process for producing an easily handleable sheet molding compound which comprises impregnating glass fibers with a resin composition comprising (A) an unsaturated polyester having a hydroxyl value of 20 to 55 and an acid value of 5 to 20 with a hydroxyl value/acid value ratio of from 1.7 to 10, (B) a polymerizable monomer and (C) a polyisocyanate compound having not more than 20 carbon atoms excepting the carbon atoms of the isocyanate groups and selected from the group consisting of diisocyanates and polymethylenepolyphenyl isocyanates, the proportions of the unsaturated polyester (A) and the polyisocyanate compound (C) being such that the mole ratio of the hydroxyl groups of the unsaturated polyester (A) to the isocyanate groups of the polyisocyanate compound (C) is from 0.7 to 1.

Abstract: A thermoplastic molding composition having improved impact strength is provided, the composition comprising a thermoplastic resin selected from (i)a poly(1,4-butylene terephthalate)in combination with a poly(ethylene terephthalate)resin, mineral-filled, or (ii) a poly(1,4-butylene terephthalate) co-aromatic/aliphatic polyester, reinforced and/or mineral-filled, and a minor, effective amount of a copolymer of ethylene and vinyl acetate or a terpolymer of ethylene, vinyl acetate and methacrylic and/or acrylic acid.