US3294716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moisture resistant starch base corrugating adhesive
Assignee: Primary Products Ingredients Americas LLC
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Filing: 1963-03-18
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Granted: 1966-12-27
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Expires: 1983-03-18
Abstract
No abstract record available.
Inventors
- 👤 George C Pinney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:48
CPC Classifications
C; C09; C09J; C09J103/00; C09J103/02; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/54; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31942; Y10T428/31949; Y10T428/31964; Y10T428/31967
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
197 words
IN THE METHOD OF PREPARING ALKALINE STARCH BASE ADHESIVE WHEREIN AN AQUEOUS ALKALINE SLURRY CONTAINING A MINOR PORTION OF THE TOTAL STARCH SOLIDS IN PASTED AT A TEMPERATURE OF AT LEAST ABOUT 145*F. TO FORM THE CARRIER AND AN AQUEOUS SLURRY CONTAINING THE REMAINING PORTION OF THE TOTAL STARCH SOLIDS IS MIXED THEREWITH, SAID AQUEOUS ALKALINE SLURRY OF PASTED CARRIED STARCH CONTAINING A SMALL PERCENT BASED ON THE TOTAL WEIGHT OF THE STRACH SOLIDS OF AT LEAST ONE PHENOLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF RESORCINOL, HYDROQUINONE, PHENOL, PYROCATECHOL, PYROGALLOL AND BISPHENOL, AND THE RESULTANT MIXTURE CONTAINING AT LEAST ONE ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF GLYOXAL, FURFURAL, ACETALDEHYDE, PROPINOALDEHYDE AND FORMALDEHYDE, SAID ALDEHYDE BEING PRESENT IN A MOL RATIO OF ALDEHYDE TO PHENOLIC COMPOUND IN THE RANGE OF FROM ABOUT 1.3:1 TO ABOUT 2:1, THE IMPROVEMENT WHICH COMPRISES MAINTAINING THE CONCENTRATION OF ADDED PHENOLIC COMPOUND BETWEEN AT LEAST ABOUT 1% BY WEIGHT BUT LESS THAN 2% BY WEIGHT OF THE TOTAL STARCH SOLIDS, AND INCORPORATING IN THE ADHESIVE APPROXIMATELY 1.2 TO 3.1% BY WEIGHT OF BORAX BASED ON THE TOTAL STARCH SOLIDS TO PERMIT SAID ADHESIVE TO BE APPLIED AT NORMAL CORRUGATING MACHINE SPEEDS.
Claim 2
Dependent Claim
197 words
IN THE METHOD OF PREPARING ALKALINE STARCH BASE ADHESIVE WHEREIN AN AQUEOUS ALKALINE SLURRY CONTAINING A MINOR PORTION OF THE TOTAL STARCH SOLIDS IN PASTED AT A TEMPERATURE OF AT LEAST ABOUT 145*F. TO FORM THE CARRIER AND AN AQUEOUS SLURRY CONTAINING THE REMAINING PORTION OF THE TOTAL STARCH SOLIDS IS MIXED THEREWITH, SAID AQUEOUS ALKALINE SLURRY OF PASTED CARRIED STARCH CONTAINING A SMALL PERCENT BASED ON THE TOTAL WEIGHT OF THE STRACH SOLIDS OF AT LEAST ONE PHENOLIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF RESORCINOL, HYDROQUINONE, PHENOL, PYROCATECHOL, PYROGALLOL AND BISPHENOL, AND THE RESULTANT MIXTURE CONTAINING AT LEAST ONE ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF GLYOXAL, FURFURAL, ACETALDEHYDE, PROPINOALDEHYDE AND FORMALDEHYDE, SAID ALDEHYDE BEING PRESENT IN A MOL RATIO OF ALDEHYDE TO PHENOLIC COMPOUND IN THE RANGE OF FROM ABOUT 1.3:1 TO ABOUT 2:1, THE IMPROVEMENT WHICH COMPRISES MAINTAINING THE CONCENTRATION OF ADDED PHENOLIC COMPOUND BETWEEN AT LEAST ABOUT 1% BY WEIGHT BUT LESS THAN 2% BY WEIGHT OF THE TOTAL STARCH SOLIDS, AND INCORPORATING IN THE ADHESIVE APPROXIMATELY 1.2 TO 3.1% BY WEIGHT OF BORAX BASED ON THE TOTAL STARCH SOLIDS TO PERMIT SAID ADHESIVE TO BE APPLIED AT NORMAL CORRUGATING MACHINE SPEEDS.
References Cited (Backward Citations)
US2650205A
Cited
US2886541A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |