Patent US3056713A successfully refreshed from Google Patents.
US3056713A
Expired / Lapsed
US
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Process for the regeneration of waste paper
Assignee: FMC Corp
•
Filing: 1960-10-07
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Granted: 1962-10-02
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Expires: 1980-10-07
Abstract
No abstract record available.
Inventors
- 👤 Gartner Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:20
CPC Classifications
D; D21; D21C; D21C5/00; D21C5/02; D21C5/025; D21C5/027; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A PROCESS FOR THE REGENERATION OF WASTE PAPER COMPRISING TREATING SAID PAPER IN UNPULPED FORM WITH AN AQUEOUS ALKALINE BATH ESSENTIALLY CONSISTING OF AN AQUEOUS SOLUTION CONTAING ABOUT 0.2 TO 1.5% BY WEIGHT OF WATER GLASS, ABOUT 0.05 TO 1.25% BY WEIGHT OF AT LEAST ONE PEROXYGEN ACTIVE OXYGEN YEILDING COMPOUND AND AT LEAST ONE NITROGEN FREE ORGANIC COMPOUND FROM THE GROUP CONSISTING OF THE ALKYL BENZENE SULFONIC ACID SALTS WHOSE ALKYL GROUPS CONTAIN 10 TO 18 CARBON ATOMS, THE ETHOXYLATED FATTY ALCOHOLS, THE ETHOXYLATED ALKYL PHENOLS AND THE ETHOXYLATED CONDENSATION PRODUCTS OF FATTY ACID HAVING WETTING AND WASHING PROPERTIES AND SEPARATING THE TREATED PAPER FROM THE BATH.
Claim 2
Dependent Claim
108 words
A PROCESS FOR THE REGENERATION OF WASTE PAPER COMPRISING TREATING SAID PAPER IN UNPULPED FORM WITH AN AQUEOUS ALKALINE BATH ESSENTIALLY CONSISTING OF AN AQUEOUS SOLUTION CONTAING ABOUT 0.2 TO 1.5% BY WEIGHT OF WATER GLASS, ABOUT 0.05 TO 1.25% BY WEIGHT OF AT LEAST ONE PEROXYGEN ACTIVE OXYGEN YEILDING COMPOUND AND AT LEAST ONE NITROGEN FREE ORGANIC COMPOUND FROM THE GROUP CONSISTING OF THE ALKYL BENZENE SULFONIC ACID SALTS WHOSE ALKYL GROUPS CONTAIN 10 TO 18 CARBON ATOMS, THE ETHOXYLATED FATTY ALCOHOLS, THE ETHOXYLATED ALKYL PHENOLS AND THE ETHOXYLATED CONDENSATION PRODUCTS OF FATTY ACID HAVING WETTING AND WASHING PROPERTIES AND SEPARATING THE TREATED PAPER FROM THE BATH.
References Cited (Backward Citations)
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US1988363A
Cited
US2525594A
Cited
US2582496A
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Cited
US2975139A
Cited
US3003910A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |