US3862243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixed oxyalkylates employed as antifoamers
Assignee: International Flavors and Fragrances Inc
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Filing: 1972-02-17
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Granted: 1975-01-21
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Expires: 1992-02-17
Abstract
Abstract Oxyethylated then oxybutylated alcohols of the general formula R(OEt)n(OBu)mOH where R is a hydrocarbon group, and most preferably a linear alkyl or alkenyl group, and n is a number from about 3 to 30, and m is from about 2 to 20. These oxyalkylated alcohols are employed as antifoamers.
Inventors
- 👤 Thomas J Bellos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:18
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/722; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/10; C07C43/11; C11D3/00; C11D3/0005; C11D3/0026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
The composition of claim 1 where alkyl or alkenyl has about 8 to 16 carbon atoms, n is about 4 to 12 and m is 3 to 10.
Claim 2
Dependent Claim
12 words
The composition of claim 2 where R is a linear alkyl group.
References Cited (Backward Citations)
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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) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |