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AssigneeAir Products Polymers, L.P.
InventorsJoel Erwin Goldstein, Ronald Joseph Pangrazi
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This invention is directed to APE-free polymer binders formed by emulsion polymerization and having specific peel and cure properties. The APE-free polymeric binders have a peel value, when adhered to a heated metal surface, of 35% to 200% of the peel value shown by a standard APE-based polymer binder control (i.e., AIRFLEX® 105 vinyl acetate-ethylene polymer emulsion) and exhibit a cure profile such that at least 55% cure is achieved within 30 seconds at a temperature required for cure. Wet tensile strength is used as a measure of cure. The peel value is determined by a modified release and adhesion test. Binders having the peel and cure properties described herein can be considered for use in crepe processes, especially DRC processes.
An alkylphenol ethoxylate-free polymer binder, said polymer binder formed by emulsion polymerization and having a peel value of 35% to 200% of a standard alkylphenol ethoxylate-based polymer binder control and a cure profile in which 55% cure is achieved within 30 seconds of being exposed to a temperature required for cure, said polymer binder having properties that render it effective as a binder in a crepe process.
An alkylphenol ethoxylate-free polymer binder, said polymer binder formed by emulsion polymerization and having a peel value of 35% to 200% of a standard alkylphenol ethoxylate-based polymer binder control and a cure profile in which 55% cure is achieved within 30 seconds of being exposed to a temperature required for cure, said polymer binder having properties that render it effective as a binder in a double recrepe process.
Dependencies are inferred from the claim text.