Ppg Industries, Inc.

Rudolf Maska

Ellor James Van Buskirk

Rostyslaw Dowbenko

Roger M Christenson

Terence J Hart

Marvin T Tetenbaum

James R Bodwell

Jerome A Seiner

Suryya K Das

Thomas R Hockswender

Padmanabhan Sundararaman

David C Kapp

William A Essary

John A Baker

Cynthia L Verardi

Ralph C Gray

David T McKeough

William J Birkmeyer

Ellor J VanBuskirk

Donald P Hart

Rostyslawa Dowbenko

David L Holzinger

Susan D Klejsmit

A formable, weldable, temporary, protective coating for use on metals is provided comprising a neutralized acid- or base-functional polymer, lubricant, and solvent including water and an alcohol having no more than four carbon atoms per molecule, whereby the coating is capable of rapid drying at relatively low temperatures while exhibiting a flash point above 100.degree. F.

Temporary protective coating compositions capable of low temperature

A water reducible resin for use in a coating composition is produced by grafting in organic solvent a thermoplastic polymer onto a thermosetting polymer that has been copolymerized with acid group-containing monomers to render the resultant polymer water soluble. Thermoplastic polymer is also grafted onto a phosphatized polyepoxide for the sake of adhesion of a coating to a substrate. A film formed from a waterborne coating composition containing the grafted polymers as a binder has both the toughness properties characteristic of a thermoplastic and the flexibility properties of a thermosetting resin.

Grafted, thermoplastic, waterborne polymer and coating composition

A formable, weldable, temporary protective coating for use on metals, said coating comprising a base-neutralized acid or base-functional copolymer.

Temporary protective coating compositions

An oligomer of the structure: ##STR1## wherein R.sub.1 is hydrogen, lower alkyl having 1 to 5 carbon atoms or hydroxyalkyl having 1 to 5 carbon atoms; R.sub.2 and R.sub.3 are the same or different radicals selected from hydrogen, alkyl having 1 to 5 carbon atoms or one of R.sub.2 and one of R.sub.3 radicals joined together with the carbon atom to which they are attached to form cycloalkyl; R.sub.5 is hydrogen or methyl; R.sub.6 is alkyl having 1 to 6 carbon atoms, cycloalkyl of 5 to 6 carbon atoms and hydroxyalkyl of 2 to 6 carbon atoms. The oligomers can be used as reactive components with other materials containing co-reactive functional groups selected from hydroxyl, carboxylic acid, carboxylic acid anhydride and isocyanate. Reactive compositions can be formed which are useful as resinous film formers in coating applications which can be cured without the generation of formaldehyde.

Oligomers formed from reaction of acrylamidoglycolate alkyl ethers with

Polymers containing one or more groups of the formula: ##STR1## where R.sub.4 is alkyl having 1 to 6 carbon atoms, cycloalkyl of 5 to 6 carbon atoms and hydroxyalkyl of 2 to 6 carbon atoms; R.sub.1 is hydrogen, alkyl having 1 to 5 carbon atoms or hydroxyalkyl having 1 to 5 carbon atoms; R.sub.2 and R.sub.3 are the same or different radicals selected from hydrogen, alkyl having 1 to 5 carbon atoms or one of the R.sub.2 and one of the R.sub.3 radicals joined together with the carbon atom to which they are attached to form cycloalkyl. The polymers can be made self-curing or can be combined with a co-reactable second material containing functional groups selected from hydroxyl, carboxylic acid, carboxylic acid anhydride and isocyanate to form curable compositions. The self-curable polymers and the curable polymer compositions are useful as resinous film formers in coating compositions which can be cured without the generation of formaldehyde.

Polymers containing beta-hydroxyalkylamide groups

Disclosed herein are crosslinkable water-dispersible acrylic copolymers which are prepared by free-radical initiated polymerization of ethylenically unsaturated monomers containing independently an active hydrogen group, a carboxyl group and a sulfonic group, wherein the polymerization is conducted in the presence of a wax. In combination with curing agents, the crosslinkable compositions are particularly useful in imparting markedly improved flow to dip coatings.

Water reducible acrylic with superior dip and flow characteristics/low

Disclosed herein is an improved vinyl chloride latex copolymer composition having good color stability, characterized in that it contains a small but effective amount of an alpha-olefin to provide color stability of films of the composition.

Vinyl chloride-olefin copolymers having good color stability and

A formable, weldable, temporary protective coating for use on metals, said coating comprising a base-neutralized acid or base-functional copolymer which contains wax.

Disclosed is a method for preparing an aqueous composition of low viscosity and low volatile organic solvent content which comprises: (A) addition polymerizing in solution a first monomer composition containing from 1 percent to 15 percent by weight of an epoxy-functional vinyl monomer and from 99 percent to 85 percent by weight of at least one other copolymerizable vinyl monomer in the presence of a polyester polymer having an acid value on solids of from 10 to 85 and a weight average molecular weight of from 500 to 2,000 until the epoxy functionally of the epoxy-functional vinyl monomer has been essentially completely reacted, to form a first product (1), and thereafter, (B) addition polymerizing in the aforesaid first product (1), a second monomer composition containing from 3 to 50 percent by weight, based on the total weight of vinyl monomers from parts (A) and (B), of an ethylenically unsaturated carboxylic acid and at least one other copolymerizable vinyl monomer different from the epoxy-functional vinyl monomer, to form a second product (2), and thereafter, (C) dispersing the aforesaid product (2) in water utilizing a base.

Method for preparing acrylic/polyester resin

Disclosed is an aqueous composition of low viscosity and low volatile organic solvent content of a water-borne resin. The water-borne resin comprises: (I) from 10 to 50 percent by weight of a polyester polymer, and (II) from 90 to 50 percent by weight of a solution polymerized acrylic copolymer. The solution polymerized acrylic copolymer is derived from a mixture of monomers comprising an ethylenically unsaturated carboxylic acid monomer. The water-borne resin is at least partially neutralized by a base and, prior to neutralization, has an acid value based on resin solids of from 10 to 200. Also disclosed is a method for preparing the aqueous composition which comprises: (A) addition polymerizing in solution a first monomer composition containing from 1 percent to 15 percent by weight of an epoxy-functional vinyl monomer and from 99 percent to 85 percent by weight of at least one other copolymerizable vinyl monomer in the presence of a polyester polymer having an acid value on solids of from 10 to 85 and a weight average molecular weight of from 500 to 2,000 until the epoxy functionality of the epoxy-functional vinyl monomer has been essentially completely reacted, to form a first product (1), and thereafter, (B) addition polymerizing in the aforesaid first product (1), a second monomer composition containing from 3 to 50 percent by weight, based on the total weight of vinyl monomers from parts (A) and (B), of an ethylenically unsaturated carboxylic acid and at least one other copolymerizable vinyl monomer different from the epoxy-functional vinyl monomer, to form a second product (2), and thereafter, (C) dispersing the aforesaid product (2) in water utilizing a base.

Water-borne acrylic/polyester resin

Disclosed is a water-solubilized resin prepared by combining a solubilizing agent and water with a composition comprising: (I) a saturated polyester polymer having an acid value on solids of from 0 to 30 when the weight average molecular weight of the polyester polymer ranges from 500 to 5,000, and (II) a vinyl polymer derived from a vinyl monomer composition comprising 3 to 50 percent by weight of an ethylenically unsaturated carboxylic acid provided that the vinyl monomer composition has been addition polymerized in the presence of from 1.0 to 50 percent by weight of a hydrocarbon wax based on the total weight of the vinyl monomer composition.

Stable water-solubilized polyester/acrylic resins made utilizing

Disclosed herein are water-based coatings comprising as an essential film-former resinous blends of acid group-containing resins and modified epoxy resins which have been found to be particularly useful as electrodepositable compositions for can coatings.

Resinous blends of epoxy and acrylic resins and the use thereof in

Non-gelled resins formed by reacting an ethylenically unsaturated polyester with ethylenically unsaturated monomers which include an ethylenically unsaturated acid are provided which are useful in coatings having better stability.

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Pittsburgh, PA, United States of America

Rudolf Maska