US3351480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Starch-remoistening adhesive composition
Assignee: Unilever Bestfoods North America
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Filing: 1965-04-02
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Granted: 1967-11-07
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Expires: 1985-04-02
Abstract
No abstract record available.
Inventors
- 👤 Merle J Mentzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:05
CPC Classifications
C; C09; C09J; C09J103/00; C09J103/04; C09J103/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A PROCESS FOR THE PREPARATION OF AN ADHESIVE COMPOSITION WHICH COMPRISES ADMIXING UNGELATINIZED STARCH CHEMICALLY MODIFIED TO SUCH AN EXTENT THAT THE STARCH IS SUBSTANTIALLY FREE OF SET BACK AFTER GELATINIZATION IN WATER, A PLASTICIZER, AND WATER IN PROPORTIONS SUCH THAT THE RATIO OF STARCH TO PLASTICIZER EXCEEDS ABOUT 2:1, AND THE RESULTING MIXTURE CONTAINS BETWEEN ABOUT 30% AND ABOUT 70% SOLIDS BY WEIGHT, ADJUSTING THE PH OF THE RESULTING MIXTURE TO BETWEEN ABOUT 8 AND ABOUT 12, AND HEATING THE MIXTURE TO A TEMPERATURE SUFFICIENT TO SUBSTANTIALLY GELATINIZE THE STARCH.
Claim 2
Dependent Claim
91 words
A PROCESS FOR THE PREPARATION OF AN ADHESIVE COMPOSITION WHICH COMPRISES ADMIXING UNGELATINIZED STARCH CHEMICALLY MODIFIED TO SUCH AN EXTENT THAT THE STARCH IS SUBSTANTIALLY FREE OF SET BACK AFTER GELATINIZATION IN WATER, A PLASTICIZER, AND WATER IN PROPORTIONS SUCH THAT THE RATIO OF STARCH TO PLASTICIZER EXCEEDS ABOUT 2:1, AND THE RESULTING MIXTURE CONTAINS BETWEEN ABOUT 30% AND ABOUT 70% SOLIDS BY WEIGHT, ADJUSTING THE PH OF THE RESULTING MIXTURE TO BETWEEN ABOUT 8 AND ABOUT 12, AND HEATING THE MIXTURE TO A TEMPERATURE SUFFICIENT TO SUBSTANTIALLY GELATINIZE THE STARCH.
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) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |