Patent US3320118A successfully refreshed from Google Patents.
US3320118A
Expired / Lapsed
US
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Cationic starch complex
Assignee: Penick & Ford Ltd
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Filing: 1960-11-21
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Granted: 1967-05-16
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Expires: 1980-11-21
Abstract
No abstract record available.
Inventors
- 👤 William C Black
- 👤 Vernon L Winfrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:47
CPC Classifications
C; C08; C08B; C08B31/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
85 words
A STARCH COMPOSITION CONSISTING ESSENTIALLY OF THE COMPLEX OF GELATINIZED UNMODIFIED STARCH AND A QUATERNARY AMMONIUM COMPOUND WHICH CONTAINS AT LEAST ONE FATTY ALIPHATIC GROUP HAVING FROM 12 TO 22 CARBON ATOMS, SAID GELATINIZED STARCH AND SAID QUATERNARY AMMONIUM COMPOUND BEING UNITED BY A COMPLEX-TYPE LINKAGE AND SAID COMPOSITION BEING SUBSTANTIALLY FREE OF ETHER LINKAGES BETWEEN SAID GELATINIZED STARCH AND SAID QUATERNARY AMMONIUM COMPOUND, SAID COMPOSITION CONTAINING FROM .1 TO 10 PARTS BY WEIGHT OF SAID QUATERNARY AMMONIUM COMPOUND PRE 100 PARTS OF SAID STARCH.
Claim 2
Dependent Claim
85 words
A STARCH COMPOSITION CONSISTING ESSENTIALLY OF THE COMPLEX OF GELATINIZED UNMODIFIED STARCH AND A QUATERNARY AMMONIUM COMPOUND WHICH CONTAINS AT LEAST ONE FATTY ALIPHATIC GROUP HAVING FROM 12 TO 22 CARBON ATOMS, SAID GELATINIZED STARCH AND SAID QUATERNARY AMMONIUM COMPOUND BEING UNITED BY A COMPLEX-TYPE LINKAGE AND SAID COMPOSITION BEING SUBSTANTIALLY FREE OF ETHER LINKAGES BETWEEN SAID GELATINIZED STARCH AND SAID QUATERNARY AMMONIUM COMPOUND, SAID COMPOSITION CONTAINING FROM .1 TO 10 PARTS BY WEIGHT OF SAID QUATERNARY AMMONIUM COMPOUND PRE 100 PARTS OF SAID STARCH.
Claim 3
Independent Claim
92 words
THE METHOD OF MODIFYING STARCH TO PROVIDE CATIONIC PROPERTIES, COMPRISING CONTACTING AND MIXGIN GELATINIZED STARCH UNMODIFIED IN AN AQUEOUS SUSPENSION WITH A QUATERNARY AMMONIUM COMPOUND TO FORM A COMPLEX OF SAID GELATINIZED STARCH AND SAID COMPOUND, SAID COMPOUND BEING AN ALIPHATIC FATTY QUATERNARY AMMONIUM COMPOUND WHICH CONTAINS AT LEAST ONE FARRY ALIPHATIC GROUP HAVING FROM 12 TO 22 CARBON ATOMS, SAID CONTACTING AND MIXING BEING CARRIED OUT UNDER NON-ETHERIFYING CONDITIONS, AND SAID QUATERNARY COMPOUND BEING EMPLOYED IN THE PROPORTION OF .1 TO 10 PARTS BY WEIGHT PER 100 PARTS OF SAID STARCH.
Claim 4
Independent Claim
92 words
THE METHOD OF MODIFYING STARCH TO PROVIDE CATIONIC PROPERTIES, COMPRISING CONTACTING AND MIXGIN GELATINIZED STARCH UNMODIFIED IN AN AQUEOUS SUSPENSION WITH A QUATERNARY AMMONIUM COMPOUND TO FORM A COMPLEX OF SAID GELATINIZED STARCH AND SAID COMPOUND, SAID COMPOUND BEING AN ALIPHATIC FATTY QUATERNARY AMMONIUM COMPOUND WHICH CONTAINS AT LEAST ONE FARRY ALIPHATIC GROUP HAVING FROM 12 TO 22 CARBON ATOMS, SAID CONTACTING AND MIXING BEING CARRIED OUT UNDER NON-ETHERIFYING CONDITIONS, AND SAID QUATERNARY COMPOUND BEING EMPLOYED IN THE PROPORTION OF .1 TO 10 PARTS BY WEIGHT PER 100 PARTS OF SAID STARCH.
Claim 5
Dependent Claim
79 words
A PAPER CHARACTERIZED BY CONTAINING FROM .1 TO 3% BY WEIGHT OF STARCH COMPLEX DISTRIBUTED THERETHROUGH AND IN INTIMATE ASSOCIATION WITH THE CELLULOSIC FIBERS THEREOF, SAID COMPLEX COMPRISING GELATINIZED UNMODIFIED STARCH ASSOCIATION WITH FROM .5 TO 5 PARTS BY WEIGHT OF A QUATERNARY AMMONIUM COMPOUND PER 100 PARTS OF SAID STARCH, SAID QUATERNARY AMMONIUM COMPOUND CONTAINING A SINGLE ALIPHATIC GROUP HAVING FROM 12 TO 22 CARBON ATOMS, SAID QUATERNARY AMMONIUM COMPOUND CONSISTING OF CARBON, HYDROGEN, NITROGEN AND ONE ANION.
Claim 6
Dependent Claim
79 words
A PAPER CHARACTERIZED BY CONTAINING FROM .1 TO 3% BY WEIGHT OF STARCH COMPLEX DISTRIBUTED THERETHROUGH AND IN INTIMATE ASSOCIATION WITH THE CELLULOSIC FIBERS THEREOF, SAID COMPLEX COMPRISING GELATINIZED UNMODIFIED STARCH ASSOCIATION WITH FROM .5 TO 5 PARTS BY WEIGHT OF A QUATERNARY AMMONIUM COMPOUND PER 100 PARTS OF SAID STARCH, SAID QUATERNARY AMMONIUM COMPOUND CONTAINING A SINGLE ALIPHATIC GROUP HAVING FROM 12 TO 22 CARBON ATOMS, SAID QUATERNARY AMMONIUM COMPOUND CONSISTING OF CARBON, HYDROGEN, NITROGEN AND ONE ANION.
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) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |