US2874132A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anion-exchange resins for sugar decolorization and their preparation
Assignee: Rohm and Haas Co
•
Filing: 1956-11-02
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Granted: 1959-02-17
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Expires: 1976-11-02
Abstract
No abstract record available.
Inventors
- 👤 Edward F Riener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:47
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/44; C13; C13B; C13B20/00; C13B20/14; C13B20/146; C08F212/00; C08F212/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
AN INSOLUBLE RESINOUS QUATERNARY AMMONIUM COMPOSITION SUITABLE FOR THE REMOVAL OF ATOMS FROM FLUIDS, AND PARTICULARLY COLOR BODIES FROM SUGAR SOLUTIONS, WHICH COMPRISES THE PRODUCT OF THE REACTION OF: (1) A TERTIARY AMINE AND (2) A CONDENSATION PRODUCT OF (A) A COPOLYMER OF A MIXTURE OF AN AROMATIC MONOVINYL HYDROCARBON AND AN AROMATIC DIVINYLHYDROCARBON OF WHICH MIXTURE THE MONOVINYL HYDROCARBON CONSTITUTES THE PREDOMINANT PROPORTION, AND (B) A HALOALKYLATING AGENT WHICH PROVIDES HALOALKYL GROUPS HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
77 words
AN INSOLUBLE RESINOUS QUATERNARY AMMONIUM COMPOSITION SUITABLE FOR THE REMOVAL OF ATOMS FROM FLUIDS, AND PARTICULARLY COLOR BODIES FROM SUGAR SOLUTIONS, WHICH COMPRISES THE PRODUCT OF THE REACTION OF: (1) A TERTIARY AMINE AND (2) A CONDENSATION PRODUCT OF (A) A COPOLYMER OF A MIXTURE OF AN AROMATIC MONOVINYL HYDROCARBON AND AN AROMATIC DIVINYLHYDROCARBON OF WHICH MIXTURE THE MONOVINYL HYDROCARBON CONSTITUTES THE PREDOMINANT PROPORTION, AND (B) A HALOALKYLATING AGENT WHICH PROVIDES HALOALKYL GROUPS HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
US2578938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |