Robert A Cassidy

US Patent:

7651763, Jan 26, 2010

Filed:

Oct 18, 2004

Appl. No.:

10/967448

Inventors:

David Allen Hutchings - Dublin OH, US
Robert Bernard Fechter - Worthington OH, US
Edward Gerard Toplikar - Hilliard OH, US
Raymond Scott Harvey - Worthington OH, US
Robert Andrew Cassidy - Columbus OH, US
Frances Ellen Lockwood - Georgetown KY, US
Wen-Chen Su - Lexington KY, US

Assignee:

Ashland Licensing and Intellectual Property, LLC - Dublin OH

International Classification:

B23B 5/14
C07F 9/02
C07C 381/00
B41J 2/01
A61L 9/04
C08G 18/67

US Classification:

4283084, 428 415, 508325, 522174, 523102, 347 1

Abstract:

This invention relates to a device that provides controlled release of a fragrant or deodorizing substance: the fragrant or deodorizing substance being solubilized with an appropriate carrier solvent within a polymeric matrix. The layers function as protective barriers, semi-permeable membranes, fragrance reservoirs, and adhesives. The device is capable of delivering a fragrance at a controlled rate for a prolonged period of time through the gradual diffusion and release of fragrant material carried by a solvent from a reservoir system to the semi-permeable UV curable, oligomer composition acting a fragrance release regulator. Additionally, the UV curable, oligomeric composition that forms the reservoir and regulating layer can be engineered to be adhesive through cure inhibition. The method of cure inhibition can also be utilized to create internal areas of high and low cross link density to further control the release rate of a fragrance.

US Patent:

20080292578, Nov 27, 2008

Filed:

Oct 31, 2007

Appl. No.:

11/980972

Inventors:

David Allen Hutchings - Dublin OH, US
Robert Bernard Fechter - Worthington OH, US
Edward Gerard Toplikar - Hilliard OH, US
Raymond Scott Harvey - Worthington OH, US
Robert Andrew Cassidy - Columbus OH, US
Frances Ellen Lockwood - Georgetown KY, US
Wen-Chen Su - Lexington KY, US

International Classification:

A61L 9/01

US Classification:

424 762

Abstract:

This invention relates to a device that provides controlled release of a fragrant or deodorizing substance: the fragrant or deodorizing substance being solublized with an appropriate carrier solvent within a polymeric matrix. The layers function as protective barriers, semi-permeable membranes, fragrance reservoirs, and adhesives. The device is capable of delivering a fragrance at a controlled rate for a prolonged period of time through the gradual diffusion and release of fragrant material carried by a solvent from a reservoir system to the semi-permeable UV curable, oligomer composition acting a fragrance release regulator. Additionally, the UV curable, oligomeric composition that forms the reservoir and regulating layer can be engineered to be adhesive through cure inhibition. The method of cure inhibition can also be utilized to create internal areas of high and low cross link density to further control the release rate of a fragrance.