Air scenting compositions and processes for use thereof in air scenting devices
First Claim
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1. An air freshening composition comprising a thermoplastic, semi-permeable polymeric gel having a fragrance material incorporated therein, the composition being formulated for application to a filter in an HVAC system to provide an air freshening scent to air passing through the filter by dispersing scented, volatile components into the air over a predetermined period of time.
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Abstract
Disclosed are compositions, processes and devices for use in HVAC systems to provide air freshening scent to air circulating in the system.
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Citations
33 Claims
- 1. An air freshening composition comprising a thermoplastic, semi-permeable polymeric gel having a fragrance material incorporated therein, the composition being formulated for application to a filter in an HVAC system to provide an air freshening scent to air passing through the filter by dispersing scented, volatile components into the air over a predetermined period of time.
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12. A process for scenting air in a forced air HVAC system including a mechanical source for circulating ambient air comprising:
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a) providing a filter member including an air permeable filter medium;
b) applying a scented thermoplastic, semi-permeable polymeric gel composition directly onto a face of the permeable filter medium; and
c) positioning the filter member having the gel composition applied on the face of the filter medium on in an HVAC system so that the ambient air circulated by the mechanical source contacts the gel composition on the permeable filter medium and disperses scented, volatile components from the gel composition into the circulating ambient air. - View Dependent Claims (14, 17, 18, 19, 20, 21, 22, 24, 25, 28, 29, 30, 31, 32, 33)
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23. A device for scenting air in a forced air HVAC system including a mechanical source of air flow for circulating ambient air through the system comprising:
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a filter supported in a frame within the HVAC system including an air permeable filter medium having an upstream facing surface and a downstream facing surface with the ambient air circulating in the system passing through the filter medium in a direction from the upstream facing surface of the filter medium to the downstream facing surface; and
a scented gel composition applied on the downstream facing surface of the filter medium whereby the circulating air initially contacts the scented gel composition after the circulating air has passed through the filter medium and the air passes through the gel composition to scent the air circulating in the system downstream of the filter. - View Dependent Claims (26, 27)
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Specification