US3684749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive composition for gummed tape
Assignee: Kao Corp
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Filing: 1969-10-27
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Granted: 1972-08-15
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Expires: 1989-10-27
Abstract
Abstract AN ADHESIVE COMPOSITION COMPOSED OF (A) 10-90 PARTS BY WEIGHT OF A WATER-INSOLUBLE COPOLYMER OF VINYL ACETATE AND LOWER ALKYL (C1 TO C4) ACRYLATE COPOLYMERIZED AT A MOL RATIO IN THE RANGE OF 90:10 TO 10:90 AND HAVING A DEGREE OF POLYMERIZATION OF BETWEEN 100 AND 3,000, (B) 90-10 PARTS BY WEIGHT OF A RESINATE-TYPE SURFACE ACTIVE AGENT, AND (C) DEXTRIN, GELATINE OR GLUE. THE COMPONENT (C) IS MIXED WITH COMPONENTS (A) AND (B) SUCH THAT THE WEIGHT RATIO OF COMPONENT (C) TO THE SUM OF COMPONENTS (A) PLUS (B) IS BETWEEN 1:99 AND 80:20. THE ADHESIVE COMPOSITION IS PREFERABLY APPLIED IN THE FORM OF AN AQUEOUS SOLUTION HAVING A SOLIDS CONTENT OF FROM 3 TO 30% BY WEIGHT.
Inventors
- 👤 Haruhiko Arai
- 👤 Shoji Horin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:30
CPC Classifications
C; C09; C09J; C09J131/00; C09J131/02; C09J131/04; C09J133/00; C09J133/04; C09J133/06; C09J133/08; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |