Patent US3740366A successfully refreshed from Google Patents.
US3740366A
Expired / Lapsed
US
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Pressure sensitive adhesive containing carboxylic acid groups and polyvalent metal
Assignee: Rohm and Haas Co
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Filing: 1971-01-22
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Granted: 1973-06-19
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Expires: 1991-01-22
Abstract
Abstract THE PRESSURE SENSITIVE ADHESIVE OF THE INVENTION HAS IMPROVED SHEAR RESISTANCE WHILE STILL HAVING GOOD TACKINESS, IT IS PREPARED BY EMULSION OR SOLUTION POLYMERIZATION, OR BY OTHER METHODS, AND HAS CARBOXYLIC ACID GROUPS THEREIN, AT LEAST SOME OF WHICH ARE BOUND OR CROSSLINKED BY A POLYVALEANT METAL, BY IONIC, POLAR, AND/OR COORDINATION BONDS. THERE ARE VARIOUS POSSIBLE THEORIES OR HYPOTHESES AS TO WHAT IS INVOLVED IN "CROSSLINKING," THE INVENTION TION NOT BEING LIMITED THERETO. THE INVENTION INCLUDES ADHESIVE TAPES AND OTHER ARTICLES AND THEIR MANUFACTURE, IN ADDITION TO THE ADHESIVE COMPOSITIONS.
Inventors
- 👤 F Sanderson
- 👤 R Zdanowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:15
CPC Classifications
C; C09; C09J; C09J133/00; C09J133/04; C09J133/06; C09J133/062; C09J133/064; C08; C08F; C08F8/00; C08F8/44; C09J7/00; C09J7/20; C09J7/21; C09J7/22; C09J7/30; C09J7/38; C08L; C08L2666/00; C08L2666/28; C09J2301/00; C09J2301/30; C09J2301/302; Y; Y10; Y10S; Y10S526/00; Y10S526/931; Y10T; Y10T156/00; Y10T156/10; Y10T428/00; Y10T428/28; Y10T428/2839; Y10T428/2852; Y10T428/2857
Claims Analysis
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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) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |