US2670336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyhydric alcohol compositions containing an alkali salt of a sulfonated alkenyl aromatic resin
Assignee: Dow Chemical Co
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Filing: 1951-06-08
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Granted: 1954-02-23
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Expires: 1971-06-08
Abstract
No abstract record available.
Inventors
- 👤 Harold H Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:43
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2221/00; C10M2221/04; C10M2221/041; C10N; C10N2040/00; C10N2040/08; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A SUBSTANTIALLY HOMOGENOUS LIQUID COMPOSITION CONSISTING OF A DISPERSION OF AT LEAST ONE ALKALI SALT OF A SULPHONATED ALKENYL AROMATIC RESIN, CONTAINING AN AVERAGE OF FROM 0.55 TO 0.95 SULPHONATE RADICAL PER AROMATIC NUCLEUS, IN A LIQUID MEDIUM OF THE GROUP CONSISTING OF AT LEAST ONE SATURATED ALIPHATIC POLYHYDRIC ALCOHOL CONTAINING FROM 2 TO 6 CARBON ATOMS, AND HAVING A RATIO OF FROM 1 TO 15 CARBON ATOMS PER ATOM OF OXYGEN, IN THE MOLECULE, AND AQUEOUS SOLUTIONS OF SUCH SATURATED ALIPHATIC POLYHYDRIC ALCOHOLS IN A CONCENTRATION OF AT LEAST 30 PER CENT BY WEIGHT, SAID SALT OF THE SULPHONATED ALKENYL AROMATIC RESIN BEING PRESENT IN AN APPRECIABLE PROPORTION NOT GREATER THAN 10 PER CENT OF THE COMBINED WEIGHT OF THE SAME AND THE LIQUID MEDIUM.
Claim 2
Dependent Claim
126 words
A SUBSTANTIALLY HOMOGENOUS LIQUID COMPOSITION CONSISTING OF A DISPERSION OF AT LEAST ONE ALKALI SALT OF A SULPHONATED ALKENYL AROMATIC RESIN, CONTAINING AN AVERAGE OF FROM 0.55 TO 0.95 SULPHONATE RADICAL PER AROMATIC NUCLEUS, IN A LIQUID MEDIUM OF THE GROUP CONSISTING OF AT LEAST ONE SATURATED ALIPHATIC POLYHYDRIC ALCOHOL CONTAINING FROM 2 TO 6 CARBON ATOMS, AND HAVING A RATIO OF FROM 1 TO 15 CARBON ATOMS PER ATOM OF OXYGEN, IN THE MOLECULE, AND AQUEOUS SOLUTIONS OF SUCH SATURATED ALIPHATIC POLYHYDRIC ALCOHOLS IN A CONCENTRATION OF AT LEAST 30 PER CENT BY WEIGHT, SAID SALT OF THE SULPHONATED ALKENYL AROMATIC RESIN BEING PRESENT IN AN APPRECIABLE PROPORTION NOT GREATER THAN 10 PER CENT OF THE COMBINED WEIGHT OF THE SAME AND THE LIQUID MEDIUM.
References Cited (Backward Citations)
US2533210A
Cited
US2455961A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-22 | 1957-08-24 | 1958-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-22 | 1961-08-24 | 1962-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-22 | 1965-08-24 | 1966-02-23 | $7700.00 | Window Closed / Lapsed |