Abstract: The invention pertains to aqueous dispersed, crosslinked microgel polymers useful as a polymeric binder in protective coatings. The microgel polymeric binder comprises epoxy-acrylic graft copolymer dispersed into water, emulsion copolymerized monoethylenically unsaturated monomer, and emulsion copolymerized divinyl benzene adapted to crosslink in the emulsion copolymerization step with the monoethylenic monomers to produce the crosslinked microgel polymer particles. The microgel polymer is particularly useful as binder for can coatings adapted to be heat cured to form a protective film.

Abstract: A protective paint coating containing a polymeric binder having both hydrophobic and hydrophilic moieties in the polymeric structure comprises an acrylic-graft terpolymer. The terpolymer comprises aliphatic-modified glycidyl acrylate and epoxy resin coreacted with diphenol to form the terpolymer. Ethylenically unsaturated monomers, including carboxyl monomers, are in-situ copolymerized in the presence of the terpolymer to produce the acrylic-graft terpolymer. The aliphatic-modified glycidyl acrylate component of the terpolymer comprise the reaction product of a glycidyl acrylate and an aliphatic ethylenic monomer having a chain of 2 to 20 carbon atoms. The aliphatic chain and the carboxyl functionality provide the self-contained wetting agent properties to the polymeric binder structure.

Abstract: A protective paint coating containing a polymeric binder having both hydrophobic and hydrophilic moieties in the polymeric structure comprises an acrylic-graft terpolymer. The terpolymer comprises aliphatic-modified glycidyl acrylate and epoxy resin coreacted with diphenol to form the terpolymer. Ethylenically unsaturated monomers, including carboxyl monomers, are in-situ copolymerized in the presence of the terpolymer to produce the acrylic-graft terpolymer. The aliphatic-modified glycidyl acrylate component of the terpolymer comprise the reaction product of a glycidyl acrylate and a branched aliphatic ethylenic monomer having a branched chain of 2 to 20 carbon atoms. The branched aliphatic chain and the carboxyl functionality provide the self-contained wetting agent properties to the polymeric binder structure.

Abstract: A process for non-aqueous copolymerization of ethylenically unsaturated monomers including carboxyl functional monomers in the presence of epoxy resin by in-situ copolymerization is improved by utilizing a catalyst (initiator) combination of less than 2% peroxide and between 0.05% and 0.1% phosphonium catalyst. The carboxyl functional polymer can be aminated and dispersed into water to produce a protective coating composition useful for interior surfaces of beer and beverage cans.

Abstract: An epoxy-acrylic graft copolymer useful as a paint film is prepared by the in-situ copolymerization of ethylenically unsaturated monomers including between 1% and 25% by weight of alkylated alkylol acrylamide monomer in the presence of at least 3% by weight of peroxide initiator in the absence of water. The unsaturated monomer chains are grafted by carbon-to-carbon grafts to the epoxy resin backbone. The resulting epoxy-acrylic graft copolymer is dispersed into water by adding amine, and is blended with from 1 to 40 parts by weight of aminoplast per 100 parts by weight of copolymer.

Abstract: A polymeric mixture comprising a graft copolymer of silicone resin is useful as a polymeric binder in paint coatings and particularly powder coatings. The polymeric mixtures are produced by copolymerizing ethylenically unsaturated monomers including glycidyl monomers in the presence of silicone resin to produce the graft silicone resins.

Abstract: Phenoxy terminated epoxy resins are grafted by carbon-carbon graft with ethylenic monomers, including alkylol acrylamide monomer, by in-situ polymerization to produce grafted epoxy-acrylic copolymers useful as binders in protective coatings. The cured paint films exhibit superior resistance to pine oil and limonene derivatives.

Abstract: A water-dispersed paint coating composition particularly useful for plastic substrates such as polystyrene foam comprises a polymeric binder of a functional acrylic copolymer and epoxy resin. Preferably, the epoxy resin is a coreaction product containing sorbitol. The polymers are water-dispersed and are adapted to cure and crosslink at ambient temperatures.

Abstract: A water-dispersed paint coating composition particularly useful for plastic substrates such as polystyrene foam comprises a polymeric binder of a functional acrylic copolymer and epoxy resin. Preferably, the epoxy resin is a coreaction product containing sorbitol. The polymers are water-dispersed and are adapted to cure and crosslink at ambient temperatures.

Abstract: A powder paint coating is based upon a thermosetting polymeric binder comprising a hydroxyl functional arcylic copolymer adapted to coreact upon heating with solid cyclic silicone resin.

Abstract: A fluorinated-silicone-acrylic terpolymer useful as a binder in powder coatings is prepared by step-wise synthesis. The process comprises reacting silicone resin with a fluorinated component to produce a fluorinated silicone resin followed by further reaction with hydroxylated acrylic prepolymer to form the flourinated-silicone-acrylic terpolymer.

Abstract: Provides new and improved water-reducible coating compositions and methods of making them. Three preferred processes are disclosed. These differ in the manner of incorporating and chemical nature of an extender polymer.Broadly, the process of the invention is one for forming an aqueous dispersion of a fluent resinous composition ofa. a mixture in an organic solvent of(i) an ionizable graft polymer of an epoxy resin and an addition polymerized resin, the addition polymerized resin being bonded to aliphatic backbone carbon atoms of the epoxy resin by carbon-to-carbon bonds, and(ii) an extender resin;b. an aqueous vehicle, andc. an ionizing agent;the ionization present from said combined components being sufficient to establish the components as a dispersion in the aqueous vehicle, and then addition polymerizing a quantity of addition polymerizable monomer, under addition polymerizing conditions, in said aqueous dispersion, the aqueous dispersion serving as a vehicle therefor.

Abstract: The composition comprises an aqueous polyelectrolyte polymer intermixed with a phosphated polymer and a self-curing water dispersed polymer containing copolymerized functional monomer and alkylol acrylamide monomer. The polyelectrolyte polymer is produced by copolymerizing ethylenically unsaturated monomers, including hydroxyl or carboxyl monomers in the presence of an ionizing agent.

Abstract: Provides new and improved water-reducible coating compositions and methods of making them. Three preferred processes are disclosed. These differ in the manner of incorporating and chemical nature of an extender polymer.Broadly, the process of the invention is one for forming an aqueous dispersion of a fluent resinous composition ofa. a mixture in an organic solvent of(i) an ionizable graft polymer of an epoxy resin and an addition polymerized resin, the addition polymerized resin being bonded to aliphatic backbone carbon atoms of the epoxy resin by carbon-to-carbon bonds, and(ii) an extender resin;b. an aqueous vehicle, andc. an ionizing agent;the ionization present from said combined components being sufficient to establish the components as a dispersion in the aqueous vehicle, and then addition polymerizing a quantity of addition polymerizable monomer, under addition polymerizing conditions, in said aqueous dispersion, the aqueous dispersion serving as a vehicle therefor.

Abstract: The product and process is directed to polymerizing second stage ethylenically unsaturated monomers within an aqueous dispersion of a preformed epoxy based resinous material comprising a mixture of graft epoxy polymer containing grafted addition polymer grafted to the epoxy backbone, ungrafted epoxy polymer, and ungrafted addition polymer uniformly dispersed in water wherein the second stage monomers are polymerized in the presence of at least 0.1% of benzoin derivative reducing agent based on monomer weight in combination with a peroxide polymerization initiator.

Abstract: Provides new and improved water-reducible coating compositions and methods of making them. Three preferred processes are disclosed. These differ in the manner of incorporating and chemical nature of an extender polymer.Broadly, the process of the invention is one for forming an aqueous dispersion of a fluent resinous composition ofa. a mixture in an organic solvent of(i) an ionizable graft polymer of an epoxy resin and an addition polymerized resin, the addition polymerized resin being bonded to aliphatic backbone carbon atoms of the epoxy resin by carbon-to-carbon bonds, and(ii) an extender resin;b. an aqueous vehicle, andc. an ionizing agent;the ionization present from said combined components being sufficient to establish the components as a dispersion in the aqueous vehicle, and then addition polymerizing a quantity of addition polymerizable monomer, under addition polymerizing conditions, in said aqueous dispersion, the aqueous dispersion serving as a vehicle therefor.

Abstract: Resinous coating compositions can be expediently heat cured by phenol compounds containing at least two methylene amine groups which are conjugated with the aromatic alcohol group or phenol group. The hydroxyl group substantially increase the reactivity of the aminomethyl functionality whereby active hydrogen containing resins can be effectively cross-linked.

Abstract: A base-functional graft polymer-containing resinous reaction product is made by incorporating an amine in a graft polymer molecule. An epoxy resin is reacted with ethylenically unsaturated monomer in the presence of a free radical initiator having hydrogen abstraction capability, to form a graft polymer resinous reaction product. The monomer may comprise a copolymerizable unsaturated amine or an unsaturated epoxide that, after the addition polymerization - grafting reaction, is reacted with a primary or secondary amine. Upon the addition of an ionizing agent and water, an aqueous dispersion or solution can be established.The resinous reaction products are useful in the formulation of coating compositions, and particularly, coating compositions useful for cathodic electrocoating.

Abstract: Room temperature curable latices can be produced by copolymerizing ketimine derivative ethylenically unsaturated monomers with conventional ethylenically unsaturated monomers in an emulsion process at a controlled pH greater than about 7.2 to produce a coagulum-free latex containing blocked amine (--NH.sub.2) groups. In use, the pH of the latex can be adjusted to acidic below 7 to generate unblocked reactive amino groups which can be cured or cross-linked at about room temperature with water-dispersed polymers such as epoxy, double bond or isothiocyanate containing polymers.

Abstract: An improved electrocoating composition can be produced by first reacting an isocyanate terminated prepolymer with a minor amount of peroxide to provide a polyurethane polymer blocked with pendant peroxide groups, and then coreacting acrylic monomers with minor amounts of other ethylenically unsaturated monomers in the presence of the preformed polyurethane-peroxide polymer to provide polyurethane copolymer with said monomers. The resulting polyurethane acrylic block copolymer can contain carboxyl or amine groups for dispersing into a dilute aqueous solution and provide an anodic or cathodic electrocoating composition.