US4600404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat sealable water dispersible adhesive
Assignee: Kimberly Clark Worldwide Inc
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Filing: 1984-11-16
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Granted: 1986-07-15
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Expires: 2004-11-16
Abstract
Abstract A water dispersible heat activatable adhesive includes a polyethyloxazoline, a compatible water dispersible adhesive and an anti-blocking agent to prevent premature adhesion. This adhesive is particularly beneficial as a coating for flushable tampon tubes.
Inventors
- 👤 Donald A. Sheldon
- 👤 Bruce G. Stokes
- 👤 Robert E. Weber
- 👤 Edwin G. Greenman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:55
CPC Classifications
C; C09; C09J; C09J179/00; C09J179/04; A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/58; C09J123/00; C09J123/02; C09J123/04; C09J123/08; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
69 words
A flushable cellulosic convolutely wound tampon tube having a water-dispersible heat-activatable adhesive comprising: 25-87.5 parts by weight polyethyloxazoline 75-12.5 parts by weight polyethyloxazoline compatible water-dispersible plasticizer with a Tg below about 10° C. and an antiblocking agent at a level of 5 to 35 parts per 100 parts of polyethyloxazoline plasticizer mixture, said antiblocking agent selected from the class consisting of moderate molecular weight polyethylene glycol and polypropylene glycol.
Claim 2
Dependent Claim
69 words
A flushable cellulosic convolutely wound tampon tube having a water-dispersible heat-activatable adhesive comprising: 25-87.5 parts by weight polyethyloxazoline 75-12.5 parts by weight polyethyloxazoline compatible water-dispersible plasticizer with a Tg below about 10° C. and an antiblocking agent at a level of 5 to 35 parts per 100 parts of polyethyloxazoline plasticizer mixture, said antiblocking agent selected from the class consisting of moderate molecular weight polyethylene glycol and polypropylene glycol.
Claim 3
Dependent Claim
19 words
The tube according to claim 1 wherein the plasticizer is an ethylene-vinylacetate copolymer with 10-30% by weight of ethylene.
Claim 4
Dependent Claim
36 words
The tube according to claim 1 wherein the plasticizer is present at a level of 25-75 parts by weight and selected from the group consisting of water dispersible acrylic polymers and water dispersible vinylacetate acrylic copolymers.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-14 | 1990-01-13 | 1990-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-14 | 1994-01-13 | 1994-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-14 | 1998-01-13 | 1998-07-15 | $7700.00 | Window Closed / Lapsed |