Perfume patch
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United States of America Patent
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-
Nov 14, 1989
Issued Date -
N/A
app pub date -
Sep 9, 1988
filing date -
Nov 13, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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.
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