Patent US1976219A successfully refreshed from Google Patents.
US4522967A
Expired / Lapsed
US
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Heat sealable water dispersible adhesive
Assignee: Kimberly Clark Worldwide Inc
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Filing: 1984-06-08
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Granted: 1985-06-11
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Expires: 2004-06-08
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
2026-10-23 18:51
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
68 words
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 anti-blocking agent at a level of 5 to 35 parts per 100 parts of the polyethyloxazoline plasticizer mixture said anti-blocking agent selected from the class consisting of moderate molecular weight polyethylene glycol and moderate molecular weight polypropylene glycol.
Claim 2
Dependent Claim
68 words
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 anti-blocking agent at a level of 5 to 35 parts per 100 parts of the polyethyloxazoline plasticizer mixture said anti-blocking agent selected from the class consisting of moderate molecular weight polyethylene glycol and moderate molecular weight polypropylene glycol.
Claim 3
Dependent Claim
19 words
The adhesive 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 adhesive according to claims 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) | 1988-06-10 | 1988-12-10 | 1989-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-10 | 1992-12-10 | 1993-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-10 | 1996-12-10 | 1997-06-11 | $7700.00 | Window Closed / Lapsed |