US4366326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxyalkylated fatty alcohols having end groups blocked by reaction with propylene
Assignee: BASF SE
•
Filing: 1981-03-06
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Granted: 1982-12-28
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Expires: 2001-03-06
Abstract
Abstract Compounds of the formula I ##STR1## where R is C 8 -C 20 -alkyl and A is a polyalkylene oxide radical composed of from 4 to 30 alkylene oxide units, of which from 100 to 60 mole % are ethylene oxide units and from 0 to 40 mole % are 1,2-propylene oxide units or 1,2-butylene oxide units or a mixture of these.
Inventors
- 👤 Wolfgang Vodrazka
- 👤 Erhard Klahr
- 👤 Knut Oppenlaender
- 👤 Wolfgang Trieselt
- 👤 Dieter Stoeckigt
- 👤 Werner Neumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:10
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/10; C07C43/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A compound of the formula I ##STR3## where R is C 8 -C 20 -alkyl and A is a polyethylene oxide radical composed of from 5 to 15 ethylene oxide units.
Claim 2
Dependent Claim
31 words
A compound of the formula I ##STR3## where R is C 8 -C 20 -alkyl and A is a polyethylene oxide radical composed of from 5 to 15 ethylene oxide units.
References Cited (Backward Citations)
US3281475A
Cited
US4187384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-12-27 | 1986-06-28 | 1986-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-27 | 1990-06-28 | 1990-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-27 | 1994-06-28 | 1994-12-28 | $7700.00 | Window Closed / Lapsed |