Ppg Industries Ohio, Inc.

Tsukasa Mizuhara

Hongying Zhou

Dennis A Simpson

Se Ryeon Lee

Shanti Swarup

Venkatachalam Eswarakrishnan

Christopher Paul Kurtz

Chad A Landis

Christophe René Gaston Grenier

Qi Zheng

Abdulrahman Dawoud Ibrahim

Melissa Joan MacDonald

Anthony Michael Chasser

Debra L Singer

Richard J Sadvary

Caroline S Harris

William H Retsch, Jr

Paul H Lamers

Xiangling Xu

Brian Edward Woodworth

Jonathan P Breon

Scott W Sisco

Gobinda Saha

Michael G Olah

Troy James Larimer

Gereme Thomas Hensel

Maria Wang

Jonathan G Weis

Wolfgang Klaeger

Beate Seiler

Kathryn A Shaffer

Christophe R G Grenier

Pedro Velez-Herrera

Jose Antonio Camerano

Hiu Yan Cheng

Dennis Allan Simpson

Melissa Joan Macdonald

Christophe Rene Grenier

Christophe RG Grenier

A coating composition includes: an aqueous medium; a first polymer comprising first core-shell particles dispersed in the aqueous medium, where the first core-shell particles include (i) keto and/or aldo functional groups, (ii) a polymeric shell including carboxylic acid functional groups and urethane and/or urea linkages, and (iii) a polymeric core at least partially encapsulated by the polymeric shell, where the polymeric shell and/or the polymeric core include the keto and/or aldo functional groups; a second polymer dispersed in the aqueous medium, the second polymer including carboxylic acid functional groups and hydroxyl functional groups; a first crosslinker including a polyhydrazide reactive with the first core-shell particles; and a second crosslinker reactive with the first core-shell particles and/or the second polymer, where the polymeric core of the first core-shell particles are covalently bonded to at least a portion of the corresponding polymeric shell.

Low temperature cure coating composition

A crosslinker composition is prepared from a reaction mixture including: (a) a prepolymer including a reaction product of a prepolymer mixture including: (i) a polyfunctional isocyanate; and (ii) a first compound comprising two or more active hydrogen groups, where the polyfunctional isocyanate and/or the first compound comprising two or more active hydrogen groups includes a greater than two functional isocyanate and/or active hydrogen groups, respectively; and (b) a polyfunctional hydrazide. The crosslinker composition is not self-crosslinkable. The crosslinker composition has an acid value of at least 15 based on total resin solids of the crosslinker composition.

Polyfunctional hydrazide crosslinker

A polyhydroxyalkylamide material having the formula (I), wherein Z represents a polymer or an alkylene, alkenylene, alkynylene or arylene group; Z' represents a bivalent organic linking group; m is 0 or 1; X represents a bivalent organic bridging group; R represents a hydroxyalkylamide group; and n is at least 2. The present invention extends to coatings compositions containing the polyhydroxyalkylamide material and articles coated with coatings derived from said coated compositions.

Polyhydroxyalkylamide materials for use as crosslinkers

A crosslinking composition includes a compound having at least two functional groups that are each independently represented by Chemical Structure (I): X is an oxygen, sulfur, or nitrogen; Ris an alkyl group, an aryl group, or an alkylaryl group; R, R, and Rare each independently an alkyl group, an aryl group, an alkylaryl group, or a hydrogen; Ris an alkyl group, an aryl group, an alkylaryl group, or a hydrogen; z is 0 when X is oxygen or sulfur and z is 1 when X is nitrogen; and when a double bond is formed between a carbon atom bonded to Rand an adjacent nitrogen, m is 0, and when a single bond is formed between the carbon atom bonded to Rand the adjacent nitrogen, m is 1.

Crosslinking compositions and coatings formed therefrom

Polymeric polyoxazolines of the following structure are disclosed: where X is the residue of a polymeric polyol after reaction with a dicarboxylic acid/anhydride; where Ris an organic moiety; where Y is an organic moiety containing one or more oxazoline groups; and wherein each Ris independently hydrogen or an organic moiety. Methods of making such polyoxazolines and using them in a coating, and packages coated therewith, are also within the scope of the present invention.

Polymeric polyoxazolines

A polyol polymer is obtained from reactants including: a) a non-aromatic epoxy functional compound that includes at least 30 weight % of the total solids weight of the reactants; and b) an aromatic mono-carboxylic acid functional compound, or anhydride thereof, that is substantially free of non-aromatic ethylenic unsaturation. The polyol polymer has ester linkages and hydroxyl functional groups. Further, if the reactants further include an aromatic polycarboxylic acid, the aromatic polycarboxylic acid makes up less than 15 weight % of the total solids weight of the reactants. A coating composition is also prepared with the polyol polymer.

Polyol polymers, methods of preparing such polymers, and coating compositions containing the same

A crosslinking material, the crosslinking material comprising the reaction product of a reaction mixture comprising:

Crosslinking material and uses thereof

Polyoxazoline-containing compositions cured in the presence of an onium salt catalyst are disclosed.

Polyoxazoline-containing compositions catalyzed with onium salt

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Allison Park, PA, United States of America

Tsukasa Mizuhara