Patent EP0304952A2 successfully refreshed from Google Patents.
EP0304952A2
Expired / Lapsed
EP
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Hydrophilic polymers for incorporating deodorants into absorbent structures
Assignee: Kenvue Brands LLC
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Filing: 1988-08-26
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Granted: —
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Expires: 2008-08-26
Abstract
Abstract There is disclosed the process of incorporating a deodorant powder (of various mechanisms of action) into a hydrophilic, swellable, water-insoluble asbsorbent crosslinked polymer, which swellable polymer is coated on a thin, flexible, substrate e.g. a non-woven web, a paper tissue, or a water-insensitive film, and the resultant flexible structures which contain the deodorant powders, held in a dust-free stable manner, and their use as one or more components of body fluid absorbent structures such as sanitary napkins.
Inventors
- 👤 Shmuel Dabi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 08:35
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/84; A61F13/8405; A61F13/15577; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/46; A61F13/51; A61F2013/5109; A61F13/514; A61F13/51401; A61F2013/51409; A61F13/53; A61F2013/530481; A61F2013/53051; A61F2013/530518; A61F2013/530583; A61F2013/530635; A61F2013/530642; A61F2013/8408; A61F2013/8447; A61F2013/845; A61L2300/00; Y; Y10; Y10S; Y10S428/00; Y10S428/905; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
106 words
A method of making a flexible structure suitable for use as a component of a body fluid absorbent structure, comprising: a thin, flexible substrate in the form of a non-woven web, or a paper tissue or a water-insensitive film, which substrate is coated with a hydrophilic, water insoluble, water swellable polymeric film containing a powdered deodorant immobilized in a dust-free manner in said polymeric film, by the steps comprising: applying a dispersion of the powdered deodorant in an aqueous solution of a water-soluble film forming polymer onto the substrate and then cross-linking the polymer in situ to form the water swellable polymeric film on said substrate.
Claim 2
Independent Claim
106 words
A method of making a flexible structure suitable for use as a component of a body fluid absorbent structure, comprising: a thin, flexible substrate in the form of a non-woven web, or a paper tissue or a water-insensitive film, which substrate is coated with a hydrophilic, water insoluble, water swellable polymeric film containing a powdered deodorant immobilized in a dust-free manner in said polymeric film, by the steps comprising: applying a dispersion of the powdered deodorant in an aqueous solution of a water-soluble film forming polymer onto the substrate and then cross-linking the polymer in situ to form the water swellable polymeric film on said substrate.
Claim 3
Dependent Claim
22 words
A powdered deodorant immobilized in a dust-free manner by being completely or partially encapsulated in a hydrophilic, water-insoluble, water-swellable crosslinked polymeric film.
Claim 4
Dependent Claim
22 words
A powdered deodorant immobilized in a dust-free manner by being completely or partially encapsulated in a hydrophilic, water-insoluble, water-swellable crosslinked polymeric film.
Claim 5
Dependent Claim
47 words
A thin, flexible substrate in the form of a non-woven web, a paper tissue or a water insensitive film, coated with a hydrophilic, water-insoluble, water-swellable cross-linked polymeric film containing a powdered deodorant immobilized in a dust-free manner by being completely or partially encapsulated in said polymeric film.
Claim 6
Dependent Claim
47 words
A thin, flexible substrate in the form of a non-woven web, a paper tissue or a water insensitive film, coated with a hydrophilic, water-insoluble, water-swellable cross-linked polymeric film containing a powdered deodorant immobilized in a dust-free manner by being completely or partially encapsulated in said polymeric film.
Claim 7
Dependent Claim
15 words
A sanitary napkin containing, as part of its construction, the substrate according to Claim 3.
Claim 8
Dependent Claim
23 words
A sanitary napkin according to Claim 4, wherein the deodorant-containing substrate is placed directly under the body facing material layer of the napkin.
Claim 9
Dependent Claim
22 words
A sanitary napkin according to Claim 4, wherein the body facing material layer of the napkin has been treated with polyvinyl alcohol-bicarbonate-borax.
Claim 10
Dependent Claim
22 words
The sanitary napkin of Claim 6 where only the inner surface of the body facing layer has been treated with polyvinyl alcohol-bicarbonate-borax.
Claim 11
Dependent Claim
29 words
A sanitary napkin containing as part of its construction, at least two different substrates according to Claim 3, each of said substrates having a different powdered deodorant coated thereon.
Claim 12
Dependent Claim
31 words
A sanitary napkin according to Claim 8 wherein said different powdered deodorants used, are of the types which would be incompatible if used together as part of the same substrate coating.
References Cited (Backward Citations)
No citation records indexed.
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