Abstract: Amine dispersants are disclosed. Also disclosed are organic dispersions that comprise ultrafine particles and an amine dispersant. The amine dispersant is the Michael addition product of reactants that include (a) a polyether (meth)acrylate and (b) a polyamine. Also disclosed are coating compositions that comprise such dispersions and substrates at least partially coated with such coating compositions.

Abstract: Disclosed are Pickering emulsions, related aqueous dispersions, and methods for their preparation, both of which include the use of a water insoluble promoter. Also disclosed are coatings and particle networks formed therefrom.

Abstract: Amine dispersants are disclosed. Also disclosed are organic dispersions that comprise ultrafine particles and an amine dispersant. The amine dispersant is the Michael addition product of reactants that include (a) a polyether (meth)acrylate and (b) a polyamine. Also disclosed are coating compositions that comprise such dispersions and substrates at least partially coated with such coating compositions.

Abstract: Gas barrier coating compositions are provided which include a polyamine component, a polyepoxide component and a hydroxy-substituted aromatic compound that is present in an amount sufficient to provide a gas barrier coating having an oxygen permeability less than or equal to 75 percent of the oxygen permeability of the same composition without a hydroxy-substituted aromatic compound. Also provided is a multi-layer packaging material having at least one gas permeable packaging material layer and at least one gas barrier material layer formed from the gas barrier coating composition. Sealable containers are also provided.

Abstract: Disclosed is a multilayer packaging material which is suitable for use as a container for malt beverages and which is tinted so as to block at least 90% of light with wavelengths of electromagnetic radiation ranging from 300 nm to 500 nm. The tinted multilayer packaging materials of the present invention includes: (a) at least one layer of a carbon dioxide (CO.sub.2)-permeable polymeric packaging material, and (b) at least one layer of a CO.sub.2 -treated gas barrier coating, which has an oxygen permeability constant not more than 0.05 cubic centimeter-mil/100 square inches/atmosphere/day. The CO.sub.2 -permeable packaging material can be any polymeric material through which CO.sub.2 can pass and which can be used as a packaging material for food or beverages. The gas barrier coating has an oxygen permeability constant, before CO.sub.2 treatment, of less than 0.3. This gas barrier coating includes the reaction product of a polyamine (A) and a polyepoxide (B).

Abstract: Disclosed is a gas barrier coating and multilayer packaging materials made therefrom. The gas barrier coating includes a polyamine (A), a polyepoxide (B), and a filler (C). Polyamine (A) includes at least one of the following: (a) an initial polyamine, and (b) an ungelled polyamine adduct which is the reaction product of the initial polyamine and epichlorohydrin and/or a polyepoxide having a plurality of glycidyl groups linked to an aromatic member. Polyepoxide (B) includes a polyepoxide having a plurality of glycidyl groups linked to an aromatic member. Filler (C) includes a platelet-type filler with the following particle size distribution: (a) a number mean particle diameter in the range from about 5.5 to about 15 microns, and (b) a volume mean particle diameter in the range from about 8 to about 25 microns. In addition, the present invention provides glossy, multilayer packaging materials containing an oxygen barrier material layer having an oxygen permeability constant not more than 0.

Abstract: The present invention provides an apparatus for controlling the spray of positively-charged coating particles towards a grounded or negatively-charged dielectric material having a dielectric constant less than 4.0 and in the form of a hollow container.

Abstract: Disclosed is a multilayer packaging material which is suitable for use as a container for malt beverages and which is tinted so as to block at least 90% of light with wavelengths of electromagnetic radiation ranging from 300 nm to 500 nm. The tinted multilayer packaging materials of the present invention includes: (a) at least one layer of a carbon dioxide (CO.sub.2)-permeable polymeric packaging material, and (b) at least one layer of a CO.sub.2 -treated gas barrier coating, which has an oxygen permeability constant not more than 0.05 cubic centimeter-mil/100 square inches/atmosphere/day. The CO.sub.2 -permeable packaging material can be any polymeric material through which CO.sub.2 can pass and which can be used as a packaging material for food or beverages. The gas barrier coating has an oxygen permeability constant, before CO.sub.2 treatment, of less than 0.3. This gas barrier coating includes the reaction product of a polyamine (A) and a polyepoxide (B).

Abstract: This invention provides a process for electrostatically applying a coating composition onto dielectric materials which have a dielectric constant less than 4.0. In this process, a positive charge is induced onto a coating composition. The dielectric material is electrically isolated, negatively charge, or both. The positively-charged coating composition is sprayed onto the dielectric material. If the dielectric material is charged negatively, the process of the present invention further includes the step of maintaining at least a portion of the negative charge on the dielectric material while positively-charged coating particles are being sprayed thereon.

Abstract: Polyepoxide-polyamine gas barrier coatings for use on packaging materials such as polymeric containers are provided with low permeability at relatively low amine to epoxy cure ratios by including substantial aryloxy or aryloate group content. The aryloxy or aryloate content may be provided, for example, by polyglycidyl ether of resorcinol or polyglycidyl ester of phthalic acid.

Abstract: Disclosed herein is a coating composition for coloring transparent containers such as glass bottles, the composition comprising a combination of a film-former such as an acrylic resin, a metal-free polymeric dye reactive with the resin, an adhesion promoter (and optionally an ultraviolet light absorber). Also disclosed are a method of coating containers with such a composition and the resulting product.

Abstract: Disclosed herein is a combination of a film-former, a metal-free, reactive colorant, ultraviolet light absorber and an adhesion promoter in an effective combination to substantially block transmission of light through a container in order to reduce lightstruck phenomenon.

Abstract: Films of low gloss may be obtained by exposing to ultraviolet light coatings of a composition comprising photoinitiator, photosensitizer, quencher and compound having a plurality of acrylyloxy groups.