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US4583980A
Expired / Lapsed
US
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Sanitary hygiene products having odor-preventing properties
Assignee: VP Schickedanz AG
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Filing: 1985-01-14
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Granted: 1986-04-22
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Expires: 2005-01-14
Abstract
Abstract This invention is directed to sanitary hygiene products. More particularly, this invention is directed to sanitary hygiene products for the absorption of secretions containing urine and/or blood which contains in an absorption layer an odor-preventing amount of one or more esters of citric acid and/or acetylcitric acid with aliphatic alcohols with from 1 to 6 carbon atoms or alicyclic alcohols with from 4 to 6 carbon atoms, as an odor-preventing substance.
Inventors
- 👤 Werner Schneider
- 👤 Scarlet Sustmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:27
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/20; A61L15/42; A61L15/46; A61L9/00; A61L9/01
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
82 words
A sanitary hygiene product for the absorption of secretions containing urine and/or blood which contains in an absorption layer an odor-preventing amount of one or more esters of citric acid and/or acetylcitric acid with aliphatic alcohols with from 1 to 6 carbon atoms or alicyclic alcohols of from 4 to 6 carbon atoms, as an odor-preventing substance, the absorption layer being arranged in the center of the product and being surrounded by a layer of cotton wadding or milled staple rayon fluff.
Claim 2
Dependent Claim
82 words
A sanitary hygiene product for the absorption of secretions containing urine and/or blood which contains in an absorption layer an odor-preventing amount of one or more esters of citric acid and/or acetylcitric acid with aliphatic alcohols with from 1 to 6 carbon atoms or alicyclic alcohols of from 4 to 6 carbon atoms, as an odor-preventing substance, the absorption layer being arranged in the center of the product and being surrounded by a layer of cotton wadding or milled staple rayon fluff.
Claim 3
Dependent Claim
14 words
The sanitary hygiene product of claim 1, wherein the absorption layer contains triethyl citrate.
Claim 4
Dependent Claim
15 words
The sanitary hygiene product of claim 1, wherein the absorption layer also contains perfume oil.
Claim 5
Dependent Claim
35 words
The sanitary hygiene product of claim 1, wherein the absorption layer comprises a highly absorbent polymer with strong absorptive capacity and said absorption layer is impregnated with an ester of citric acid and/or acetylcitric acid.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-21 | 1989-10-21 | 1990-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-21 | 1993-10-21 | 1994-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-21 | 1997-10-21 | 1998-04-22 | $7700.00 | Window Closed / Lapsed |