Method and composition for bonding styrenic surfaces
AssigneeFMC Corporation
InventorDouglas G. Placek
Life of this patent
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Abstract
A method is provided for forming a tacky surface area on a styrenic resin, such as a polystyrene label. A thin film is applied of an alkyl, aryl or alkaryl ester of a phosphorus oxyacid providing a tacky area suitable for bonding to another surface. A composition particularly useful for bonding polystyrene labels to bottles is a solid alkyl, aryl or alkaryl ester of a phosphorus oxyacid and a cosolvent selected from terpenoids and aromatic compounds having a flash point of at least 35.degree. C. and a boiling point between 100.degree. C. and 260.degree. C.
Claims6
A composition for forming a tacky surface area on a styrenic resin, the composition comprising a first solvent a solid alkyl, aryl or alkaryl ester of a phosphorus oxyacid, and a sufficient amount of a cosolvent for the styrenic resin to maintain the composition as a liquid at the temperature of application to the surface of a styrenic resin, thereby providing a tacky area on the surface suitable for bonding the tacky area to another surface, wherein the cosolvent has a flash point of at least 35.degree. C., and a boiling point between about 100.degree. C. and about 260.degree. C. and is a terpenoid compound or an oxidized derivative thereof, the terpenoid compound consisting of two or three isoprene structural units ((C.sub.5 H.sub.10).sub.n where n=2 or 3), and wherein the ester of the phosphorus oxyacid is selected from the group consisting of phosphates, phosphites and phosphonates.
Dependencies are inferred from the claim text.