US3215635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Defoaming compositions
Assignee: Nopco Chemical Co
•
Filing: 1962-08-02
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Granted: 1965-11-02
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Expires: 1982-08-02
Abstract
No abstract record available.
Inventors
- 👤 Liebling Raymond
- 👤 Jr Thomas F Groll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:56
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
102 words
A DEFOAMING COMPOSITION CONSISTING ESSENTIALLY OF: (A) FROM ABOUT 50% TO ABOUT 89% BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC HYDROCARBONS, ALICYCLIC HYDROCARBONS, AROMATIC HYDROCARBONS AND MIXTURES THEREOF, SAID COMPOUND HAVING A BOILING POINT OF AT LEAST 150*F., (B) FROM ABOUT 5% TO ABOUT 25% BY WEIGHT OF AT LEAST ONE FATTY ACID HAVING FROM ABOUT 6 TO 24 CARBON ATOMS, (C) FROM ABOUT 5% TO ABOUT 24% BY WEIGHT OF AT LEAST ONE FATTY ALCOHOL HAVING FROM 6 TO 22 CARBON ATOMS, (D) ABOUT 1% TO 20% OF A COMPOUND SELEACTED FROM THE CLASS CONSISTING OF
Claim 2
Dependent Claim
102 words
A DEFOAMING COMPOSITION CONSISTING ESSENTIALLY OF: (A) FROM ABOUT 50% TO ABOUT 89% BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC HYDROCARBONS, ALICYCLIC HYDROCARBONS, AROMATIC HYDROCARBONS AND MIXTURES THEREOF, SAID COMPOUND HAVING A BOILING POINT OF AT LEAST 150*F., (B) FROM ABOUT 5% TO ABOUT 25% BY WEIGHT OF AT LEAST ONE FATTY ACID HAVING FROM ABOUT 6 TO 24 CARBON ATOMS, (C) FROM ABOUT 5% TO ABOUT 24% BY WEIGHT OF AT LEAST ONE FATTY ALCOHOL HAVING FROM 6 TO 22 CARBON ATOMS, (D) ABOUT 1% TO 20% OF A COMPOUND SELEACTED FROM THE CLASS CONSISTING OF
Claim 3
Dependent Claim
133 words
IN A PAPERMAKING PROCESS, A METHOD OF DEFOAMING THE PULP AND LIQUOR SLURRY IN THE SCREENING AND WASHING OPERATIONS COMPRISING ADDING TO THE PULP ABOUT 0.01 TO ABOUT 0.5% BY WEIGHT OF A DEFOAMING COMPOSITION CONSISTING ESSENTIALLY OF: (A) FROM ABOUT 50% TO ABOUT 89% BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC HYDROCARBONS, ALICYCLIC HYDROCARBONS, AROMATIC HYDROCARBONS AND MIXTURES THEREOF, SAID COMPOUND HAVING A BOILING POINT OF AT LEAST 150*F., (B) FROM ABOUT 5% TO ABOUT 25% BY WEITGHT OF AT LEAST ONE FATTY ALCOHOL HAVING FROM 6 TO 22 CARBON ATOMS, (C) FROM ABOUT 5% TO ABOUT 24% BY WEIGHT OF AT LEAST ONE FATTY ALCOHOL HAVING FROM 6 TO 22 CARBON ATOMS, (D) ABOUT 1% TO 20% OF A COMPOUND SELECTED FROM THE CLASS CONSISTING OF
Claim 4
Dependent Claim
133 words
IN A PAPERMAKING PROCESS, A METHOD OF DEFOAMING THE PULP AND LIQUOR SLURRY IN THE SCREENING AND WASHING OPERATIONS COMPRISING ADDING TO THE PULP ABOUT 0.01 TO ABOUT 0.5% BY WEIGHT OF A DEFOAMING COMPOSITION CONSISTING ESSENTIALLY OF: (A) FROM ABOUT 50% TO ABOUT 89% BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC HYDROCARBONS, ALICYCLIC HYDROCARBONS, AROMATIC HYDROCARBONS AND MIXTURES THEREOF, SAID COMPOUND HAVING A BOILING POINT OF AT LEAST 150*F., (B) FROM ABOUT 5% TO ABOUT 25% BY WEITGHT OF AT LEAST ONE FATTY ALCOHOL HAVING FROM 6 TO 22 CARBON ATOMS, (C) FROM ABOUT 5% TO ABOUT 24% BY WEIGHT OF AT LEAST ONE FATTY ALCOHOL HAVING FROM 6 TO 22 CARBON ATOMS, (D) ABOUT 1% TO 20% OF A COMPOUND SELECTED FROM THE CLASS CONSISTING OF
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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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |