Abstract: The present invention provides a method of reinforcing thin rigid plates. The method comprises applying, preferably by spray application, a curable composition onto one side of the rigid plate followed by curing the composition while only in contact with the rigid plate. The curable composition comprises: (i) a thermosetting resinous composition and (ii) expandable microspheres. The composition may optionally contain a particulate reinforcing material selected from the group consisting of milled glass fibers, milled carbon fibers, and mixtures thereof.

Abstract: A composition which is the reaction product of (i) a material having the structure ##STR1## where R.sub.1 is an organic radical having 6 to 25 carbon atoms; R.sub.2 is alkylene having 1 to 4 carbon atoms; R.sub.3 and R.sub.4 are independently alkyl having 1 to 4 carbon atoms and n is 2-4 and (ii) an acidic hydrogen-containing compound. The compositions are useful as catalyst in induction curable adhesive compositions.

Abstract: A curable, sprayable composition suitable for reinforcing thin rigid plates or sheets such as are used in the assembly of automobiles is provided. The composition comprises a thermosetting resin, expandable microspheres and a particulate reinforcing material selected from the group consisting of milled glass fibers, milled carbon fibers and mixtures thereof.

Abstract: A one package, stable curable composition contains:(a) a nonfunctional polydiene;(b) a polyepoxide;(c) a sulfur and zinc containing vulcanization system adapted to cure the polydiene and the polyepoxide; and(d) an anhydride containing material effective to promote adhesion of the curable composition to metal, wherein the anhydride containing material remains essentially unreacted with the epoxide and is combined in a manner to obtain dissolution of the anhydride containing material in the epoxide.The aforesaid curable composition is suitable for use as an adhesive or sealant.

Abstract: This invention discloses a modified rosin soap which is an ammonia-neutralized esterification product of a Diels-Alder adduct of a monomeric rosin and an alpha, beta-unsaturated carboxylic compound. The use of the modified rosin as an emulsifier and/or a stabilizer in the preparation of an acrylic latex and the use of the acrylic latex in ink formulations are also disclosed.

Abstract: A polymerizable ethylenically unsaturated urea urethane polymer dispersed in a polymerizable ethylenically unsaturated compound is prepared by a process which comprises reacting a polyisocyanate, at least a portion of which is a diisocyanate, with a polyfunctional amine containing primary and/or secondary amino groups in the presence of:(a) a polyol, at least a portion of which is a polymeric polyol containing ethylenic unsaturation and having a carbon to oxygen ratio of at least 4/1;(b) a diluent which is an ethylenically unsaturated compound free of active hydrogens; and(c) an active hydrogen containing polymerizable ethylenically unsaturated compound; under conditions sufficient to form a polymerizable ethylenically unsaturated urea urethane polymer dispersed in a polymerizable ethylenically unsaturated compound.The aforedescribed urea urethane polymer dispersions are particularly useful in formulating curable compositions suitable for use as adhesives and sealants.

Abstract: The present invention encompasses a urethane-modified rosin ester which is derived from an isocyanate and a hydroxyl-functional rosin esterification product of a dimerized rosin. The urethane-modified rosin esters, having a high softening point and good compatibility with hydrocarbon solvents, good gelability and good squalene resistance, are particularly suitable as binders for inks such as fast conversion lithographic inks.

Abstract: The present invention encompasses a phenolic-modified rosin ester which is derived from a rosin esterification product of a dimerized rosin and a phenolic resin. The phenolic-modified rosin esters, having a high softening point and good compatibility with hydrocarbon solvents and good gelability, are particularly suitable as binders for inks such as lithographic inks.

Abstract: A method of molding involves the formulation of molding compositions with polymerizable ethylenically unsaturated urea-urethane polymer dispersions.

Abstract: A coated article has a coating which is an at least partially cured coating composition prepared from a polyurea-polyurethane acrylate dispersion.

Abstract: A method of in-mold coating a molded article involve the formulation of in-mold coating compositions and molding compositions with polymerizable ethylenically unsaturated urea-urethane polymer dispersions.

Abstract: Polymerizable ethylenically unsaturated urea-urethane polymer dispersions are prepared. In preparing the dispersions a polyisocyanate, at least a portion of which is diisocyanate, is contacted with a polyfunctional amine containing primary and/or secondary amino groups in the presence of:(a) a polyol, at least a portion of which is a polymeric polyol, free of ethylenic unsaturation,(b) a diluent which is an ethylenically unsaturated compound free of active hydrogens, and(c) an active hydrogen-containing polymerizable ethylenically unsaturated compound, the equivalent ratio of isocyanate to active hydrogen in said polyol and said polyfunctional amine being within the range of 1.1 to 2.0/1 and the equivalent ratio of polyol to polyfunctional amine being within the range of 0.75 to 20/1,under conditions sufficient to form a polymerizable ethylenically unsaturated urea-urethane compound dispersed in the polymerizable ethylenically unsaturated compound.

Abstract: Curable aliphatic polyester resin compositions formed from aliphatic unsaturated polycarboxylic acids and polyols and a crosslinking aliphatic vinyl monomer are disclosed. The degree of unsaturation in the polyesters is carefully controlled so that the resin can be cured to produce strong thermoset products. Resins of this nature can be filled with high levels of aluminum hydrate to give compositions that have high oxygen indices and very low smoke densities as measured by the National Bureau of Standards Smoke Chamber. Also, the resins are capable of room temperature curing.

Abstract: Crosslinked acrylic polymer microparticles having a particle size of from 0.1 to 10 microns are produced in relatively high concentrations by a method comprising the free radical addition copolymerization of at least one monoethylenically unsaturated monomer with alpha, beta-ethylenically unsaturated monocarboxylic acid and crosslinking monomer selected from the group consisting of (1) epoxy group-containing compound and (2) a mixture of alkylenimine and organoalkoxysilane in the presence of a dispersion stabilizer and an aliphatic hydrocarbon dispersing liquid in which the crosslinked polymer particles are insoluble.The crosslinked acrylic polymer microparticles are useful as additives to protective and decorative coatings.

Abstract: Dispersions containing crosslinked acrylic polymer microparticles having a particle size of from 0.1 to 10 microns are produced in relatively high concentrations by a method comprising the free radical addition copolymerization of at least one monoethylenically unsaturated monomer with alpha, beta-ethylenically unsaturated monocarboxylic acid and crosslinking monomer selected from the group consisting of (1) epoxy group-containing compound and (2) a mixture of alkylenimine and organoalkoxysilane in the presence of a dispersion stabilizer and an aliphatic hydrocarbon dispersing liquid in which the crosslinked polymer particles are insoluble.The crosslinked acrylic polymer microparticles are useful as additives to protective and decorative coatings.

Abstract: A novel method of preparing polymer based powder coating compositions involves as a first step the preparation of a mixture containing one or more ethylenically unsaturated monomers which are polymerizable by ionizing radiation, and optionally other coating composition additives. Optional additives which may be incorporated in the mixture include pigments, internal or external crosslinkers, chain transfer agents, flow promoters, plasticizers, viscosity control agents, minor proportions of resins, and the like. Pigments are especially desirable additives. The next step in the process is to apply a coating of the mixture to a substrate. Then, the coated substrate is subjected to ionizing radiation to polymerize the ethylenically unsaturated monomers and thereby form a solid film. Finally, the film is broken into particles by any of several mechanical means to form a polymer based powder coating composition which when applied to a substrate and baked, fuses to produce a film.

Abstract: Curable aliphatic polyester resin compositions formed from aliphatic unsaturated polycarboxylic acids and polyols and a crosslinking aliphatic vinyl monomer are disclosed. The degree of unsaturation in the polyesters is carefully controlled so that the resin can be cured to produce strong thermoset products. Resins of this nature can be filled with high levels of aluminum hydrate to give compositions that have high oxygen indices and very low smoke densities as measured by the National Bureau of Standards Smoke Chamber. Also, the resins are capable of room temperature curing.