US3355307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single mix starch adhesive
Assignee: Unilever Bestfoods North America
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Filing: 1964-09-21
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Granted: 1967-11-28
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Expires: 1984-09-21
Abstract
No abstract record available.
Inventors
- 👤 John J Schoenberger
- 👤 Raymond P Citko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:31
CPC Classifications
C; C09; C09J; C09J103/00; C09J103/02; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A PROCESS FOR PREPARING A CORRUGATING ADHESIVE WHICH COMPRISES: (1) PREPARING A HEATED REACTION MIXTURE OF UNGELATINIZED STARCH SELECTED FROM THE GROUP CONSISTING OF UNMODIFIED STARCH AND CHEMICALLY MODIFIED STARCH, WATER, AND ALKALI IN PROPORTIONS SUCH THAT THE MIXTURE CONTAINS BETWEEN ABOUT 10% AND ABOUT 40% STARCH SOLIDS BY WEIGHT AND THE PH IS BETWEEN ABOUT 8 AND ABOUT 13, WITH THE TEMPERATURE OF SAID MIXTURE RANGING FROM ABOUT 165*F. TO ABOUT 70*F.; (2) ALLOWING THE REACTION TO PROCEED UNTIL A STEIN HALL VISCOSITY OF ABOUT 20 TO ABOUT 90 SECONDS IS REACHED, AND (3) STOPPING THE REACTION BY ADDITION OF A REACTION STOPPER WHEREBY THE GEL JPOINT OF THE REACTION MIXTURE AFTER SAID SERIES OF STEPS IS THUS ADJUSTED TO BETWEEN ABOUT 135*F. AND ABOUT 160*F.
Claim 2
Dependent Claim
127 words
A PROCESS FOR PREPARING A CORRUGATING ADHESIVE WHICH COMPRISES: (1) PREPARING A HEATED REACTION MIXTURE OF UNGELATINIZED STARCH SELECTED FROM THE GROUP CONSISTING OF UNMODIFIED STARCH AND CHEMICALLY MODIFIED STARCH, WATER, AND ALKALI IN PROPORTIONS SUCH THAT THE MIXTURE CONTAINS BETWEEN ABOUT 10% AND ABOUT 40% STARCH SOLIDS BY WEIGHT AND THE PH IS BETWEEN ABOUT 8 AND ABOUT 13, WITH THE TEMPERATURE OF SAID MIXTURE RANGING FROM ABOUT 165*F. TO ABOUT 70*F.; (2) ALLOWING THE REACTION TO PROCEED UNTIL A STEIN HALL VISCOSITY OF ABOUT 20 TO ABOUT 90 SECONDS IS REACHED, AND (3) STOPPING THE REACTION BY ADDITION OF A REACTION STOPPER WHEREBY THE GEL JPOINT OF THE REACTION MIXTURE AFTER SAID SERIES OF STEPS IS THUS ADJUSTED TO BETWEEN ABOUT 135*F. AND ABOUT 160*F.
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) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |