Patents

Elastomeric Paint with Protective Coating on Styrenic Block Copolymer

March 25, 2014

U.S. 8,557,349 B2
Apex Materials Corporation has obtained a patent for a process for forming an elastomeric paint and/or elastomeric protective coating upon a thermoplastic elastomeric substrate forming an article and having a surface structure receptive to receiving at least one selective elastomeric paint coating. The process includes the thermoplastic elastic substrate substantially comprised of a styrenic block copolymer; permanently applying a paint coating composition to the surface structure of a thermoplastic elastomeric substrate article, the elastomeric paint coating composition comprised of one or more copolymer resins selected from the group consisting of a tailback, radical block and multiblock copolymer, and optionally a diblock copolymer; mineral oil; solvents; colorants and, additives; wherein each of the copolymers contains at least two thermodynamically incompatible segments, selected from the group consisting of styrene-butadiene-styrene polymers; styrene-isoprene-styrene polymers; styrene-ethylene-butadiene-styrene polymers; styrene-ethylene-propylene-styrene polymers; styrene-ethylene-butylene-styrene polymers; styrene-butadiene polymers; and tyrene-isoprene polymers; wherein the copolymers comprise between five-10 percent by weight of the elastomeric paint coating composition; wherein the mineral oil is comprised of between five-15 percent by weight of the elastomeric paint coating composition; wherein the solvents comprise aromatic and aliphatic solvents, thearomatic solvents including toluene, xylene, aromatic 150 and aromatic 100, and the aliphatic solvents including heptane, cyclohexane, mineral spirits and VM and  P, the solvents comprise between 80-90 percent by weight of the elastomeric paint coating composition; wherein the elastomeric paint coating composition includes pigments comprised of at least one of luminescent pigment, fluorescent pigment, and thermochromic pigment, and  comprised between three-eight percent by weight of the elastomeric paint coating composition; wherein at least one additive selected from the group consisting of adhesion modifier, matting powder, antistatic agent, defomer, wetting agent, antioxidant, anti-ultraviolet agent, and a fragrance, and the additives being added to adjust the coating composition for flow, viscosity, and surface characteristics; and applying the elastomeric protective coating onto the top coat treatment of the thermoplastic elastomeric article, wherein the elastomeric protective coating is comprised of one or more copolymer resins selected from the group consisting of a tailback, radical block and multiblock copolymer, and optionally diblock copolymer; an alpha cyanoacrylate; mineral oil; solvents; and additives; and wherein the elastomeric paint and elastomeric protective coating furnishing protection to the imprinted article to provide scratch resistance and allow stretching of the article during its usage.

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