US 5,150,722 AGranted

Multi-layer scent emitting article and device adapted to employ same

AssigneeInternational Flavors & Fragrances Inc.

InventorHoward J. Rutherford

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Abstract

Described are methods for effecting the controlled release of fragrance materials over a relatively long period of time for the purpose of air treatment and scenting. Optionally in the same time frame the methods can effect an initial "Burst" of the same or different organoleptic functional materials over a relatively short period of time. The air treatment agents can include but are not limited to insect repellents, air fresheners, odorants and deodorants. Also described are articles capable of being mass produced which are useful in effecting the controlled release of fragrances, insect repellents, air fresheners, odorants and deodorants over a relatively long period of time and, optionally, in the same time frame, effecting an initial "Burst" of the same or different organoleptic functional materials over a relatively short period of time. Also described is apparatus specifically designed to utilize such articles.

Claims9

Dependent claims

A multi-layer controlled release functional organoleptic material-emitting lamina article comprising:

(a) a controlled release functional organoleptic material-emitting substantially planar core lamina consisting of a microporous or macroporous polymer having included in the pores thereof a functional organoleptic material composition, said core lamina having a first upper planar surface S.sub.1 of surface area A.sub.1, a second lower planar surface, S.sub.1 ', of surface area A.sub.1 ', a substantially uniform finite cross section thickness d.sub.1 and a lateral continuous or discretely interrupted surface area S.sub.e having an area A.sub.e which surface area A.sub.e is exposed to the environment surrounding the article, being substantially in linear lateral core planes, immediately adjacent or conterminous to and juxtaposed to one another or in a curvilinear lateral core plane or in curvilinear lateral core planes immediately adjacent or conterminous to and juxtaposd to one another, said lateral core plane or core planes being substantially perpendicular to said first upper planar surface and said second lower planar surface of said core lamina wherein:
A.sub.1 =A.sub.1 '>>>A.sub.e
and;
S.sub.e .perp. (S.sub.1 .LAMBDA.S.sub.1 ')
(b) fixedly adhered to said first upper planar surface of said core lamina and contiguous or coplanar therewith at least one planar impermeable polymeric first barrier lamina or series of monoplanar spaced parallel first barrier laminae which has a first upper surface S.sub.2 of surface area A.sub.2 and a second lower surface S.sub.3 of surface area A.sub.3, said second lower surface being fixedly contiguous or coplanar with said first upper planar surface of said core lamina with the provisos that:
A.sub.1 =A.sub.1 '.gtoreq.A.sub.3 .gtoreq.A.sub.2
and;
S.sub.1 .parallel.S.sub.1 '.parallel.S.sub.3 .parallel.S.sub.2
(c) fixedly adhered to said lower planar surface S.sub.1 ' of said core lamina and contiguous or coplanar therewith at least one planar impermeable polymeric second barrier lamina or a series of spaced parallel second barrier laminae which has a first upper surface S.sub.4 or surface area A.sub.4 and a second lower surface S.sub.5 of surface area A.sub.5, said first upper surface S.sub.4 being fixedly contiguous or coplanar with said second lower planar surface S.sub.1 of the core lamina with the provisos that:
A.sub.1 '.gtoreq.A.sub.4 .gtoreq.A.sub.5
and;
S.sub.1 '.parallel.S.sub.4 .parallel.S.sub.5.

9 more elements

A multi-layer controlled release functional organoleptic material-emitting article consisting of:

(a) a controlled release functional organoleptic material-emitting substantially planar core lamina consisting of a microporous or a macroporous polymer having included in the pores thereof a functional organoleptic material composition, said core lamina having a first upper planar surface S.sub.1 of surface area A.sub.1, having an adhesive layer coated thereon, a second lower planar surface, S.sub.1 ' of surface area A.sub.1 ' having an adhesive layer coated thereon, a finite cross section thickness d.sub.1 and a lateral exposed continuous or discretely interrupted surface area S.sub.e having an area A.sub.e being substantially in linear lateral core planes immediately adjacent or conterminous to and juxtaposed to one another or in a curvilinear lateral core plane or in curvilinear lateral core planes immediately adjacent or conterminous to and juxtaposed to one another, said lateral core plane or core planes being substantially perpendicular to said first upper planar surface and said second lower planar surface of said core lamina;
wherein:
A.sub.1 =A.sub.1 '>>>A.sub.e ;
(b) fixedly adhered via the adhesive layer, to said first upper planar surface of said core lamina a planar impermeable polymeric first barrier lamina or series of monoplanar spaced parallel first barrier laminae which has a first upper surface S.sub.2 of surface area A.sub.2 and a second lower surface S.sub.3 of surface area A.sub.3, said second lower surface being fixedly contiguous or coplanar with the adhesive layer covering said first upper planar surface of said core lamina with the provisos that:
A.sub.1 =A.sub.1 '.gtoreq.A.sub.3 .gtoreq.A.sub.2
and;
S.sub.1 .parallel.S.sub.1 '.parallel.S.sub.3 .parallel.S.sub.2
(c) fixedly adhered via an adhesive layer to said second lower planar surface S.sub.1 ' of said core lamina a planar impermeable polymeric first barrier lamina or series of monoplanar spaced parallel first barrier laminae which has a first upper surface S.sub.2 of surface area A.sub.2 and a second lower surface S.sub.3 of surface area A.sub.3, said second lower surface being fixedly contiguous or coplanar with the adhesive layer covering said first upper planar surface of said core lamina with the proviso that:
A.sub.1 =A.sub.1 '>>>A.sub.e
and;
S.sub.1 '.parallel.S.sub.4 .parallel.S.sub.5.

8 more elements

A multi-layer controlled release functional organoleptic material-emitting lamina article comprising:

(a) a functional organoleptic material-emitting substantially planar core lamina consisting of a microporous or a macroporous polymer having included in the pores thereof a functional organoleptic material composition, said core lamina having a first upper planar surface S.sub.1 of surface area A.sub.1, a second lower planar surface, S.sub.1 ' of surface area A.sub.1 ', a substantially uniform finite cross section thickness d.sub.1 and a lateral continuous or discretely interrupted surface area S.sub.e having an area A.sub.e which surface area A.sub.e is exposed to the environment surrounding the article, being substantially in linear lateral core planes immediately adjacent or conterminous to and juxtaposed to one another or in a curvilinear lateral core plane or in curvilinear lateral core planes immediately adjacent or conterminous to and juxtaposed to one another, said lateral core plane or core planes being substantially perpendicular to said first upper planar surface and said second lower planar surface of said core lamina wherein:
A.sub.1 =A.sub.1 '>>>A.sub.e
and;
S.sub.e .perp.(S.sub.1 .LAMBDA.S.sub.1 ')
(b) fixedly adhered to said first upper planar surface of said core lamina and contiguous or coplanar therewith at least one planar impermeable polymeric first barrier lamina or series of monoplanar spaced parallel first barrier laminae which has a first upper surface S.sub.2 of surface area A.sub.2 and a second lower surface S.sub.3 of surface area A.sub.3, said second lower surface being fixedly contiguous or coplanar with said first upper planar surface of said core lamina with the provisos that:
A.sub.1 =A.sub.1 '.gtoreq.A.sub.3 .gtoreq.A.sub.2
and;
S.sub.1 .parallel.S.sub.1 '.parallel.S.sub.3 .parallel.S.sub.2
(c) fixedly adhered to said lower planar surface S.sub.1 ' of said core lamina and contiguous or coplanar therewith at least one planar impermeable polymeric second barrier lamina or a series of spaced parallel second barrier laminae which has a first upper surface S.sub.4 of surface area A.sub.4 and a second lower surface S.sub.5 of surface area A.sub.5, said first upper surface S.sub.4 being fixedly contiguous or coplanar with said second lower planar surface S.sub.1 of the core lamina with the provisos that:
A.sub.1 '.gtoreq.A.sub.4 .gtoreq.A.sub.5
and;
S.sub.1 '.parallel.S.sub.4 .parallel.S.sub.5
(d) fixedly adhered to said first upper surface S.sub.2 of said first barrier lamina and contiguous or coplanar therewith a porous or microporous "Burst" immediate release functional organoleptic material-emitting substantially planar first "Burst" lamina or series of monoplanar spaced parallel first "Burst" laminae consisting of a microporous or a macroporous polymer having included in the porous thereof a functional organoleptic material composition, said first "Burst" lamina having a first upper outer exposed surface, exposed to the environment surrounding the article, S.sub.6 of surface area A.sub.6 and a second lower inner surface S.sub.7 of surface area A.sub.7, said surface S.sub.7 being fixedly contiguous or coplanar with said first upper surface S.sub.2 of said first barrier lamina with the provisos that:
A.sub.2 .gtoreq.A.sub.7
and
S.sub.2 .parallel.S.sub.7 ;
(e) fixedly adhered to said second lower surface S.sub.5 of said second barrier lamina and contiguous or coplanar therewith a porous or microporous functional organoleptic material-emitting substantially planar second "Burst" lamina or series of monoplanar spaced parallel second "Burst" laminae consisting of a microporous or a macroporous polymer having included in the pores thereof a functional organoleptic material composition, said second "Burst" lamina having a first lower outer exposed surface, exposed to the environment surrounding the article, S.sub.8 of surface area A.sub.8 and a second upper inner surface S.sub.9 of surface area A.sub.9, said surface S.sub.9 being fixedly contiguous or coplanar with said surface S.sub.5 with the provisos that:
A.sub.5 .gtoreq.A.sub.9
and
S.sub.5 .parallel.S.sub.9.

17 more elements

A multi-layer controlled release functional organoleptic material-emitting rectangular shaped article consisting of:

(a) a controlled release functional organoleptic material-emitting substantially planar core lamina having a finite cross section thickness d.sub.1 consisting of a microporous or a macroporous polymer having included in the pores thereof a functional organoleptic material composition, said core lamina having a first upper planar surface S.sub.1 of surface area A.sub.1, having n separately spaced parallel exposed rectangular surfaces S.sub.e " having a surface area A.sub.e " thereon which are a first set of lateral core planes parallel and adjacent to one another, a second lower planar surface S.sub.1 ' having surface area A.sub.1 ' having m separately spaced parallel exposed rectangular surfaces S.sub.e ' having surface area A.sub.e ' thereon which are a second set of lateral core planes parallel and adjacent to one another, said lateral core planes being substantially parallel to said first upper planar surface and said second lower planar surface of said core lamina, with the total exposed core lamina surface S.sub.e having area A.sub.e wherein:
A.sub.1 =A.sub.1 '>>>A.sub.e
and
S.sub.e .parallel.(S.sub.1 .LAMBDA.S.sub.1 ')
(b) fixedly adhered to said first upper planar surface of said core lamina a series of n spaced parallel-disposed monoplanar first barrier laminae which have first upper surfaces of surface area A.sub.2 and second lower surfaces of surface area A.sub.3, said second lower surfaces each being fixedly contiguous with said first upper planar surface of said core lamina with the provisos that:
A.sub.e =A.sub.e '+A.sub.e ";
A.sub.1 =A.sub.1 '.gtoreq.A.sub.3 .gtoreq.A.sub.2
and
S.sub.1 .parallel.S.sub.1 '.parallel.S.sub.3 .parallel.S.sub.2,
(c) fixedly adhered to said second lower planar surface S.sub.1 ' of said core lamina a parallel-disposed series of m spaced around barrier lamina which have third upper surfaces S.sub.4 of surface area A.sub.4 in fourth lower surfaces S.sub.5 of surface area A.sub.5, said third upper surfaces S.sub.4 being fixedly contiguous with said second lower planar surface S.sub.1 ' with the provisos that:
A.sub.1 '.gtoreq.A.sub.4 .gtoreq.A.sub.5
and
S.sub.1 '.parallel.S.sub.4 .parallel.S.sub.5.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 07/611,913Filed 9 Nov 1990 · continuation in part
Priority: 12 Jul 1989
Granted: 29 Sep 1992
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

A01M 1/2055
Without heating: holders or dispensers for solid, gelified or impregnated insecticide, e.g. volatile blocks or impregnated pads
A01K 55/00
Bee-smokers
A01M 1/02
Stationary means for catching or killing insects: with devices or substances, e.g. food, pheronones attracting the insects
A01M 1/2044
Without heating: holders or dispensers for liquid insecticide, e.g. using wicks