US5407442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon-containing odor controlling compositions
Assignee: Individual
•
Filing: 1993-11-23
•
Granted: 1995-04-18
•
Expires: 2013-11-23
Abstract
Abstract Compositions comprise carbon particles combined with white odor-controlling agents by means of binders. The preferred particle form of the compositions is substantially lighter in color than the original carbon, and the resulting particles are preferred for use in the manufacture of catamenials, diapers, bandages, and the like. Particles comprising carbon coated with zeolites are not only desirably lighter in color, but also control a broad spectrum of malodors associated with body fluids.
Inventors
- 👤 Nancy Karapasha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:41
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/18; A61L9/00; A61L9/01
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
100 words
A sanitary napkin or pantiliner containing at least about 0.1 grams of odor-controlling bonded particles comprising cohesive mixture of: (a) carbon particles having a black original color, said carbon particles being substantially coated with: (1) white particles selected from the group consisting of white odor-controlling agents and white color masking material; and (2) a water-soluble or water-dispersible binder material; (b) said bonded particles being lighter in color compared with said original color of said carbon particles; and (c) wherein said carbon particles have a weight ratio to said white particles in the range of from about 20:1 to about 1:5.
Claim 2
Dependent Claim
100 words
A sanitary napkin or pantiliner containing at least about 0.1 grams of odor-controlling bonded particles comprising cohesive mixture of: (a) carbon particles having a black original color, said carbon particles being substantially coated with: (1) white particles selected from the group consisting of white odor-controlling agents and white color masking material; and (2) a water-soluble or water-dispersible binder material; (b) said bonded particles being lighter in color compared with said original color of said carbon particles; and (c) wherein said carbon particles have a weight ratio to said white particles in the range of from about 20:1 to about 1:5.
Claim 3
Dependent Claim
30 words
A sanitary napkin or pantiliner according to claim 1 wherein said substantially white particles are hydrophobic silica, and wherein said napkin or pantiliner further comprises particles of absorbent gelling material.
Claim 4
Dependent Claim
39 words
A sanitary napkin or pantiliner according to claim 1 wherein said white masking material is selected from the group consisting of titanium oxide, zirconium oxide, magnesium oxide, non-odor controlling zeolites, silica, germanium oxide, tin oxide, chalk, and mixtures thereof.
Claim 5
Dependent Claim
30 words
A sanitary napkin or pantiliner according to claim 1 wherein said substantially white particles are odor-controlling zeolites, and wherein said napkin or pantiliner further comprises particles of absorbent gelling material.
Claim 6
Dependent Claim
30 words
A sanitary napkin or pantiliner according to claim 4 which has a weight ratio of said bonded particles to said absorbent gelling material of from about 1:10 to about 10:1.
Claim 7
Dependent Claim
39 words
A sanitary napkin or pantiliner according to claim 5 comprising from about 0.1 grams to about 1.5 grams of said bonded particles and from about 0.1 grams to about 1.0 grams of an acrylate or starch-acrylate absorbent gelling material.
Claim 8
Dependent Claim
32 words
A sanitary napkin or pantiliner according to claim 1 wherein said said white particles are selected from the group consisting of odor-controlling zeolites, hydrophobic silicas, odor-controlling clays, activated alumina, and mixtures thereof.
Claim 9
Dependent Claim
12 words
A composition according to claim 7 wherein said white particles are zeolites.
Claim 10
Dependent Claim
44 words
A sanitary napkin or pantiliner according to claim 8 wherein said bonded particles are zeolite particle-coated carbon particles comprising: (a) from about 20% to about 50% by weight of carbon particles; and (b) from about 20% to about 45% by weight of zeolite particles.
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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) | 1998-04-17 | 1998-10-17 | 1999-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-04-17 | 2002-10-17 | 2003-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-04-17 | 2006-10-17 | 2007-04-18 | $7700.00 | Window Closed / Lapsed |