Patent US4003744A successfully refreshed from Google Patents.
Patent US3015572A successfully refreshed from Google Patents.
US3015572A
Expired / Lapsed
US
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Dry potential adhesive compositions
Assignee: Primary Products Ingredients Americas LLC
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Filing: 1958-04-02
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Granted: 1962-01-02
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Expires: 1978-04-02
Abstract
No abstract record available.
Inventors
- 👤 James P Casey
- 👤 Ellis R Lehman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:17
CPC Classifications
C; C09; C09J; C09J103/00; C09J103/02; C08; C08L; C08L2666/00; C08L2666/02; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1025
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
127 words
IN THE NANUFACTURE OF CORRUGATED PAPERBOARD WHEREIN AN AMYLACOUS ADHESIVE IS PREPARED BY MIXING AN AQUEOUS SUSPENSION OF UNGELATINIZED STARCH WITH A SEPARATIVELY PREPARED AQUEOUS CARRIER THEREOR AND AN ADHESIVE BOND IS DEVELOPED BY GELATINIZING THE UNGELATINIZED STARCH BETWEEN THE PLIES OF SAID BOARD, THE IMPROVEMENT COMPRISING THE STEPS OF DISPERSING IN WATER A DRY COMPOSITION THAT CONSISTS ESENTIALLY OF UNGELATINIZED STARCH, A GRANULAR FORM OF BORAX AND A GRANULAR FORM OF SODIUM CARBOXYMETHYLCELLULOSE TO FORM SAID ADHESIVE AND APPLYING SAID ADHESIVE TO AT LEAST ONE OF THE PILES OF SAID PAPERBOARD BEFORE GALATINIZING THE STARCH, THE RATIO OF SAID SODIUM CARBOXYMETHYLCELLULOSE TO STARCH LYING WITHIN THE RANGE OF 0.005 TO 0.10, THE PERCENTAGE OF BORAX BASED ON STARCH LYING WITHIN THE RANGE OF 0.5 TO 8.
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) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |