Heat resistant adhesives for adhering mailer windows
AssigneeThe Standard Register Company
InventorsRajendra Mehta, Walt Akridge
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Abstract
A window-containing mailer is provided which is suitable for use in nonimpact printers using heated fuser rolls. A heat and moisture resistant adhesive which resists picking at temperatures encountered in the fusing rolls secures a transparent polymeric film or glassine patch to the mailer substrate. The adhesive may be either a crosslinkable aqueous-based latex or emulsion or a radiation curable composition.
Claims3
A mailer or envelope for use in a nonimpact printer having heated fuser rolls, said mailer or envelope containing a window of a transparent polymeric film or glassine which is bonded to said mailer or envelope by a heat and moisture resistant adhesive composition comprising an aqueous-based latex or emulsion of a carboxylated copolymer of ethylene and vinyl acetate, which has been crosslinked by a crosslinking agent selected from the group consisting of phenol formaldehyde adducts, phenol melamine formaldehydes, and water soluble zirconium salts, said adhesive composition providing a bond sufficient to prevent dislodging of said window from said mailer or envelope at temperatures from ambient to about 450.degree. F.
Dependencies are inferred from the claim text.