Patent ID: 6730311
Filing Date: 2004-05-04
Classification: A01N,A61L

Abstract:
A picture frame assembly comprising:(a) a frame panel comprising, or coated with, a sustained release fragrance material, wherein the sustained release fragrance material is a polyurethane/urea matrix, prepared by a process of reacting a urethane prepolymer with an aromatic diamine chain extender in the presence of a fragrance agent, wherein the aromatic diamine chain extender is selected from the group consisting of 4,4â€²-methylene-bis(2-chloroaniline), 4,4â€²-methylene-bis(3-chloro-2,6-diethylaniline), 4,4â€²-methylene-bis-aniline, diethyltoluenediamine, 5-tert-butyl-2,4-toluenediamine, 3-tert-butyl-2,6-toluenediamine, 5-tert-amyl-2,4-toluenediamine, 3-tert-amyl-2,6-toluenediamine, chlorotoluenediamine, and mixtures thereof; (b) a picture panel comprising an adsorbent panel coated with a fragranced polymeric emulsion, wherein the fragranced polymeric emulsion is an aqueous acrylic-urethane hybrid polymer in a dried emulsion dispersion form containing an organoleptically effective amount of a fragrance agent; (c) a support panel comprising a fiber board coated with a fragrance oil; and (d) an impervious backing panel; wherein the picture panel is juxtaposed behind the frame panel, the support panel is juxtaposed behind the picture panel, and the backing panel is juxtaposed behind the support panel.