US2597171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorine containing condensation products of phenols and sulfonated acetaldehydes
Assignee: Honeywell International Inc
•
Filing: 1949-06-08
•
Granted: 1952-05-20
•
Expires: 1969-06-08
Abstract
No abstract record available.
Inventors
- 👤 Julian A Otto
- 👤 Everett E Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:56
CPC Classifications
D; D21; D21C; D21C9/00; D21C9/008; C; C07; C07G; C07G99/00; C07G99/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
THE METHOD OF PREPARING A CHLORINE CONTAINING PRODUCT WHICH COMPRISES CONDENSING AT 25-135* C. ACETALDEHYDE DISULFONIC ACID WITH A MONOHYDROXY PHENOL OF THE BENZENE SERIES HAVING ONE HYDROGEN ATOM IN AT LEAST ONE OF THE POSITIONS ORTHO AND PARA TO THE HYDROXYL GROUP AND CONTAINING FROM 0 TO 3 NUCLEAR CHLORINE ATOMS AND NOT MORE THAN ONE ALKYL GROUP, SAID ALKYL GROUP HAVING NOT MORE THAN 8 CARBON ATOMS, FROM 1 TO 2 MOLS OF PHENOL COMPOUND BEING REACTED PER MOL OF SAID DISULFONIC ACID, THE CONDENSATION REACTION TAKING PLACE IN THE PRESENCE OF AN ACID CONDENSING AGENT, AND CHLORINATING THE RESULTING REACTION MIXTURE.
Claim 2
Independent Claim
104 words
THE METHOD OF PREPARING A CHLORINE CONTAINING PRODUCT WHICH COMPRISES CONDENSING AT 25-135* C. ACETALDEHYDE DISULFONIC ACID WITH A MONOHYDROXY PHENOL OF THE BENZENE SERIES HAVING ONE HYDROGEN ATOM IN AT LEAST ONE OF THE POSITIONS ORTHO AND PARA TO THE HYDROXYL GROUP AND CONTAINING FROM 0 TO 3 NUCLEAR CHLORINE ATOMS AND NOT MORE THAN ONE ALKYL GROUP, SAID ALKYL GROUP HAVING NOT MORE THAN 8 CARBON ATOMS, FROM 1 TO 2 MOLS OF PHENOL COMPOUND BEING REACTED PER MOL OF SAID DISULFONIC ACID, THE CONDENSATION REACTION TAKING PLACE IN THE PRESENCE OF AN ACID CONDENSING AGENT, AND CHLORINATING THE RESULTING REACTION MIXTURE.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |