US4381784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanitary appliance containing blood gelling agent
Assignee: Kimberly Clark Worldwide Inc
•
Filing: 1981-02-17
•
Granted: 1983-05-03
•
Expires: 2001-02-17
Abstract
Abstract An absorbent article for absorbing blood having a conventional absorbent includes a blood gelling agent to thicken and bind menstrual fluid within the absorbent.
Inventors
- 👤 Gerard M. Aberson
- 👤 Robin Powell-Toothman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:11
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/53; A61F13/534; A61L; A61L15/00; A61L15/16; A61L15/22; A61L15/42; A61L15/60; A61F13/539; A61F13/51; A61F13/514; A61F13/51401; A61F2013/51409; A61F2013/530481; A61F2013/53445; A61F2013/53908; A61F13/84; A61F2013/8488
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
43 words
An absorbent article used for absorbing body fluids containing blood including a fluid impervious baffle, an absorbent component and a blood gelling agent which is essentially non-cross-linked and water soluble and which forms particulate disordered structures with blood protein but not with water.
Claim 2
Dependent Claim
43 words
An absorbent article used for absorbing body fluids containing blood including a fluid impervious baffle, an absorbent component and a blood gelling agent which is essentially non-cross-linked and water soluble and which forms particulate disordered structures with blood protein but not with water.
Claim 3
Dependent Claim
36 words
A sanitary napkin including a fluid impervious baffle, an absorbent component and a blood gelling agent which is essentially non-cross-linked and water soluble and which forms particulate disordered structures with blood protein but not with water.
Claim 4
Dependent Claim
36 words
A sanitary napkin including a fluid impervious baffle, an absorbent component and a blood gelling agent which is essentially non-cross-linked and water soluble and which forms particulate disordered structures with blood protein but not with water.
Claim 5
Dependent Claim
26 words
The napkin according to claim 1 or 2 wherein the blood gelling agent is present at levels sufficient to at least partially immobilize the menstrual fluid.
Claim 6
Dependent Claim
29 words
The napkin according to claim 1 or 2 wherein the blood gelling agent is selected from a class consisting of medically safe partially hydrated di-carboxylic anhydride copolymer and polycations.
Claim 7
Dependent Claim
24 words
The napkin according to claim 1 or 2 wherein the blood gelling agent is present at a level of from 0.2 to 1.5 gm.
Claim 8
Dependent Claim
20 words
The napkin according to claim 2 wherein the blood gelling agent is present at a homogeneous blend with the absorbent.
Claim 9
Dependent Claim
18 words
The napkin according to claims 1 or 5 wherein the blood gelling agent is positioned near the baffle.
Claim 10
Dependent Claim
19 words
The napkin according to claims 1 or 2 wherein the blood gelling agent is present in a thin layer.
Claim 11
Dependent Claim
21 words
The napkin according to claim 1 or 2 wherein the blood gelling agent is used in combination with flow directing means.
References Cited (Backward Citations)
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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) | 1986-05-02 | 1986-11-01 | 1987-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-02 | 1990-11-01 | 1991-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-02 | 1994-11-01 | 1995-05-03 | $7700.00 | Window Closed / Lapsed |