US4992326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrophilic polymers for incorporating deodorants in absorbent structures
Assignee: Personal Products Co
•
Filing: 1987-08-28
•
Granted: 1991-02-12
•
Expires: 2007-08-28
Abstract
Abstract There is disclosed the process of incorporating a deodorant powder (of various mechanisms of action) into a hydrophilic, swellable, water-insoluble absorbent 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 structure 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
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:26
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: 2
Claim 1
Independent Claim
46 words
A thin, flexible substrate in the form of a paper tissue or a water insensitive film, coated with a hydrophilic, water-insoluble, water-swellable cross-linked film forming polymeric material containing a powdered deodorant immobilized in a dust-free manner by being completely or partially encapsulated in said polymeric material.
Claim 2
Dependent Claim
46 words
A thin, flexible substrate in the form of a paper tissue or a water insensitive film, coated with a hydrophilic, water-insoluble, water-swellable cross-linked film forming polymeric material containing a powdered deodorant immobilized in a dust-free manner by being completely or partially encapsulated in said polymeric material.
References Cited (Backward Citations)
US4454191A
Cited
US4455187A
Cited
US4746567A
Cited
JPS62227932A
Cited
US4808466A
Cited
US4817860A
Cited
US4925517A
Cited
US4889755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-11 | 1994-08-13 | 1995-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-11 | 1998-08-13 | 1999-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-11 | 2002-08-13 | 2003-02-12 | $7700.00 | Window Closed / Lapsed |