Patent US3054764A successfully refreshed from Google Patents.
US3054764A
Expired / Lapsed
US
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Applicating solutions of poly-n-vinyl-5-methyl-2-oxazolidinone in aqueous glycol ether solvents
Assignee: Dow Chemical Co
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Filing: 1958-03-10
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Granted: 1962-09-18
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Expires: 1978-03-10
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm E Walles
- 👤 William F Tousignant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:48
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C08J3/095; C08J2339/00; C08J2339/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
AN AQUEOUS SOLUTION OF POLY-N-VINYL-5-METHYL-2 OXAZOLIDINONE WHICH CONSISTS ESSENTIALLY OF SAID POLYMER DISSOLVED IN A SOLVENT VEHICLE CONSISTING ESSENTIALLY OF WATER MIXED WITH A GLYCOL ETHER THAT IS SOLUBLE IN WATER AND BOILS ABOVE ABOUT 100* C., SAID GLYCOL ETHER BEING PRESENT IN SAID AQUEOUS SOLVENT VEHICLE IN AN AMOUNT SUCH THAT THE CLOUD POINT OF THE POLYMER IN THE RESULTING SOLUTION IS INCREASED IN COMPARISON WITH THE CLOUD POINT OF THE SAME POLYMER AT THE SAME CONCENTRATION IN WATER.
Claim 2
Dependent Claim
80 words
AN AQUEOUS SOLUTION OF POLY-N-VINYL-5-METHYL-2 OXAZOLIDINONE WHICH CONSISTS ESSENTIALLY OF SAID POLYMER DISSOLVED IN A SOLVENT VEHICLE CONSISTING ESSENTIALLY OF WATER MIXED WITH A GLYCOL ETHER THAT IS SOLUBLE IN WATER AND BOILS ABOVE ABOUT 100* C., SAID GLYCOL ETHER BEING PRESENT IN SAID AQUEOUS SOLVENT VEHICLE IN AN AMOUNT SUCH THAT THE CLOUD POINT OF THE POLYMER IN THE RESULTING SOLUTION IS INCREASED IN COMPARISON WITH THE CLOUD POINT OF THE SAME POLYMER AT THE SAME CONCENTRATION IN WATER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |