摘要:
A protective coating composition for coating interior surfaces of beer, beverage, and food containers, as well as interior and exterior surfaces of can ends, comprises a polymeric binder of emulsion copolymerized ethylenic monomers in the presence of an unsaturated polyester dispersed into water with an aqueous dispersed epoxy-acrylic graft copolymer dispersant. The preferred polymeric binder comprises by weight between 0.1% and 40% unsaturated polyester, between 20% and 80% emulsion copolymerized ethylenic unsaturated monomers, and at least 20% dispersant, where the emulsion copolymerized monomers crosslink with the water dispersed unsaturated polyester.
摘要:
Coating compositions containing aqueous dispersion of higher molecular weight epoxy resin are produced by advancing the molecular weight of an aqueous dispersion of a low molecular weight epoxy resin having a number average molecular weight between about 360 and 2,000. The water dispersed low molecular weight epoxy resins are advanced in molecular weight by coreaction with diphenol at temperatures above about 105.degree. C. and at pressures above about 5 psig to produce the aqueous dispersed high molecular weight epoxy resin. The aqueous dispersed high molecular weight epoxy resin can be further copolymerized with ethylenic monomers, if desired, to produce an acrylic epoxy emulsion binder useful protective coatings.
摘要:
Coating compositions containing aqueous dispersions of higher molecular weight epoxy resin are produced by advancing the molecular weight of an aqueous dispersion of a low molecular weight epoxy resin having a number average molecular weight between about 360 and 2,000. The water dispersed low molecular weight epoxy resins are advanced in molecular weight by coreaction with diphenol at temperatures above about 105.degree. C. and at pressures above about 5 psig to produce the aqueous dispersed high molecular weight epoxy resin. The aqueous dispersed high molecular weight epoxy resin can be further copolymerized with ethylenic monomers, if desired, to produce an acrylic epoxy emulsion binder useful in protective coatings.
摘要:
A solid electrolyte oxygen sensor has a protective coating to protect a catalyst or conductive film thereon, which coating is formed as an inorganic reaction product of an oxide material and an inorganic acid which forms a matrix to bond the oxide material as an adherent coating over the film.
摘要:
A low-cost precise-metering uniform-fuel-breakup fuel injection valve comprises narrow arcuate slots etched through a thin spray disc located downstream of a metering orifice and comprises a plurality of narrow slots of length and width sufficient to break up the fuel first into thin sheets and then into small droplets of uniform diameter.
摘要:
A coating composition is provided for use in laminate substrates useful in packaging of liquids and solids where the coating provides and increased resistance to the permeability of gases such as oxygen and carbon dioxide. In one embodiment the coating composition is a dispersion or a solution that comprises at least one hydroxyl functional polyetheramine, phosphoric acid and a defoamer. The backbone of the polyetheramine has diglycidyl ether linkages that comprise about 5 to about 70 mole percent resorcinol diglycidyl ether. The coating composition can be applied to substrates by coating applications such as spraying, rolling reverse and direct, rolling direct and reverse gravure, kiss coat, flow coating, brushing, dipping and curtain-wall coating, for example.
摘要:
A protective coating composition and a method for coating a metal substrate are provided. The composition and method are particularly suitable for coating can ends. The coating composition includes a film-forming polymer that includes an epoxy-based resin, a lubricant system, and a solvent or water component or mixture of solvent and water. The lubricant system includes a first surface modifier that reduces the coefficient of friction and a second surface modifier that reduces the abrasion of the cured coating.
摘要:
A coating composition is provided for use in laminate substrates useful in packaging of liquids and solids where the coating provides and increased resistance to the permeability of gases such as oxygen and carbon dioxide. In one embodiment the coating composition is a dispersion or a solution that comprises at least one hydroxyl functional polyetheramine, phosphoric acid and a defoamer. The backbone of the polyetheramine has diglycidyl ether linkages that comprise about 5 to about 70 mole percent resorcinol diglycidyl ether. The coating composition can be applied to substrates by coating applications such as spraying, rolling reverse and direct, rolling direct and reverse gravure, kiss coat, flow coating, brushing, dipping and curtain-wall coating, for example.
摘要:
A protective coating composition and a method for coating a metal substrate are provided. The composition and method are particularly suitable for coating can ends. The coating composition includes a film-forming polymer that includes an epoxy-based resin, a lubricant system, and a solvent or water component or mixture of solvent and water. The lubricant system includes a first surface modifier that reduces the coefficient of friction and a second surface modifier that reduces the abrasion of the cured coating.
摘要:
Clear and pigmented powder paint coatings are based on a thermosetting polymeric binder comprising low molecular weight, carboxylic acid functional, crystalline polyester and a coreactive glycidyl functional addition copolymer, preferably and glycidyl functional acrylic copolymer.