초록 ▼

A perfume patch comprising a fragrance-emitting member having a fragrance dispersed within an ultra-thin polyurethane membrane. A layer of pressure sensitive adhesive is applied to adhere the member to a surface. The polyurethane is formed from a diisocyanate, a macroglycol, and an acrylyl chain ter

A perfume patch comprising a fragrance-emitting member having a fragrance dispersed within an ultra-thin polyurethane membrane. A layer of pressure sensitive adhesive is applied to adhere the member to a surface. The polyurethane is formed from a diisocyanate, a macroglycol, and an acrylyl chain terminator to which a photoinitiator and a fragrance oil are added prior to curing. A barrier layer may be applied by an adhesive or other suitable means to prevent migration of the fragrance oil to the adhesive so that no residue of adhesive remains on the surface. The perfume patch preferably includes a support for the fragrance-emitting member for ease in application and handling.

대표청구항 ▼

A perfume patch comprising a fragrance-emitting member comprising a polyurethane consisting essentially of (1) a diisocyanate; (2) a glycol having a molecular weight between the range of 500-5000 molecular weight units; (3) an acrylyl chain terminator having a molecular weight between the range of 4

A perfume patch comprising a fragrance-emitting member comprising a polyurethane consisting essentially of (1) a diisocyanate; (2) a glycol having a molecular weight between the range of 500-5000 molecular weight units; (3) an acrylyl chain terminator having a molecular weight between the range of 40 and 200 molecular weight units; and (4) a photoinitiator into which a perfume is dispersed; and (5) a barrier layer adhered to the fragrance-emitting member.