US3213047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating compositions comprising aldehyde modified amide interpolymer and hydrocarbon soluble cellulose ether
Assignee: PPG Industries Inc
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Filing: 1961-12-27
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Granted: 1965-10-19
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Expires: 1981-12-27
Abstract
No abstract record available.
Inventors
- 👤 Erwin J Kapalko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:44
CPC Classifications
C; C09; C09D; C09D101/00; C09D101/08; C09D101/26; C09D101/28; C08; C08F; C08F8/00; C08F8/28; C08F8/46; C09D101/282; C09D157/00; C09D157/06; C09D157/12; C08F2800/00; C08F2800/20; C08L; C08L1/00; C08L1/08; C08L1/26; C08L1/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A COATING COMPOSITION COMPRISING A COMPATIBLE MIXTURE OF FROM ABOUT 0.01 TO ABOUT 5 PERCENT BY WEIGHT OF A HYDROCARBON-SOLUBLE ALKYL CELLULOSE ETHER HAVING FROM 2 TO 8 CARBON ATOMS IN EACH ALKYL AND AN ALDEHYDE-MOD IFIED CARBOXYLIC ACID AMIDE INTERPOLYMER OF A POLYMERIZABLE UNSATURATED CARBOXYLIC ACID AMIDE AND AT LEAST ONE OTHER MONOMER CONTAINING A CH2=C< GROUP, SAID INTER POLYMER BEING CHARACTERIZED BY HAVING AMIDO HYDROGEN ATOMS REPLACED BY THE STRUCTURE -CH(-R)-O-R1 WHEREIN R IS A MEMBER OF THE CLASS CONSISTING OF HYDROGEN AND LOWER ALIPHATIC HYDROCARBON RADICALS AND R1 IS A MEMBER OF THE CLASS CONSISTING OF HYDROGEN AND A RADICAL DERIVED BY REMOVING THE HYDROXYL GROUP FROM A MONOHYDRIC ALCOHOL, AT LEAST SOME OF THE GROUPS REPRESENTED BY R1 BEING SAID RADICAL.
Claim 2
Dependent Claim
125 words
A COATING COMPOSITION COMPRISING A COMPATIBLE MIXTURE OF FROM ABOUT 0.01 TO ABOUT 5 PERCENT BY WEIGHT OF A HYDROCARBON-SOLUBLE ALKYL CELLULOSE ETHER HAVING FROM 2 TO 8 CARBON ATOMS IN EACH ALKYL AND AN ALDEHYDE-MOD IFIED CARBOXYLIC ACID AMIDE INTERPOLYMER OF A POLYMERIZABLE UNSATURATED CARBOXYLIC ACID AMIDE AND AT LEAST ONE OTHER MONOMER CONTAINING A CH2=C< GROUP, SAID INTER POLYMER BEING CHARACTERIZED BY HAVING AMIDO HYDROGEN ATOMS REPLACED BY THE STRUCTURE -CH(-R)-O-R1 WHEREIN R IS A MEMBER OF THE CLASS CONSISTING OF HYDROGEN AND LOWER ALIPHATIC HYDROCARBON RADICALS AND R1 IS A MEMBER OF THE CLASS CONSISTING OF HYDROGEN AND A RADICAL DERIVED BY REMOVING THE HYDROXYL GROUP FROM A MONOHYDRIC ALCOHOL, AT LEAST SOME OF THE GROUPS REPRESENTED BY R1 BEING SAID RADICAL.
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) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |