US3388082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel hydroxypropyl methyl cellulose ethers, a process for preparing the same, and compositions utilizing such ethers
Assignee: Dow Chemical Co
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Filing: 1965-11-01
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Granted: 1968-06-11
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Expires: 1985-11-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Samuel M Rodgers
- 👤 Burton F Wakeman
- 👤 Albert B Savage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:53
CPC Classifications
C; C08; C08B; C08B11/00; C08B11/193; C08B11/02; C08B11/04; C08B11/08; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C08L; C08L1/00; C08L1/08; C08L1/26; C08L1/28; C08L1/284
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
AN AQUEOUS COATING COMPOSITION COMPRISING THE EMULSION POLYMERIZATE OF AN ETHYLENICALLY UNSATURATED MONOMER, A PIGMENT AND FROM 0.1 TO 5.0 PERCENT OF WATERSOLUBLE HYDROXYPROPYL METHYL CELLULOSE ETHER CHARACTERIZED IN HAVING A METHOXYL DEGREE OF SUBSTITUTION OF FROM 0.4 TO 1.3 AND A HYDROXYPROPYL MOLAR SUBSTITUTION OF FROM 0.2 TO 1.4 AND A TOTAL SUBSTITUTION OF AT LEAST 1.0 COMBINED DEGREE OF METHOXYL SUBSTITUTION AND DEGREE OF HYDROXYPROPYL MOLAR SUBSTITUTION.
Claim 2
Dependent Claim
18 words
THE COMPOSITION OF CLAIM 5 WHEREIN SAID ETHYLENICALLY UNSATURATED MONOMR IS COMPOSED AT AT LEAST ONE ACRYLATE ESTER.
References Cited (Backward Citations)
US2985607A
Cited
US2965508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |