US3238170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous coating composition comprising a polyepoxide and an alkali soluble copolymer
Assignee: Primary Products Ingredients Americas LLC
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Filing: 1962-10-08
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Granted: 1966-03-01
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Expires: 1982-10-08
Abstract
No abstract record available.
Inventors
- 👤 Wolff Norwin
- 👤 Thomas B Pitrolffy-Szabo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:17
CPC Classifications
C; C09; C09D; C09D163/00; C09D133/00; C09D133/04; C09D133/06; C09D133/062; C09D133/064; C08; C08L; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A COMPOSITION OF MATTER CAPABLE OF PRODUCING GLOSSY, CONTINUOUS, ALKALI-RESISTANT COATINGS COMPRISING AN AQUEOUS, ALKALINE SOLUTION OF (1) 50% TO 0.1% BY WEIGHT OF A DISSOLVED POLYEPOXY COMPOUND AND (2) 50% TO 99.9% BY WEIGHT DISSOLVED EMULSION COPOLYMER COMPRISING AS ITS TWO ESSENTIAL MONOMERS FROM 95 TO 40 MOLE PERCENT OF AN ALKYL ESTER OF AN ALPHA, BETA-ETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACID AND FROM 5 TO 50 MOLE PERCENT OF AN ALKYL HALF-ESTER OF ITACONIC ACID WHEREIN SAID TWO ESSENTIAL MONOMERS COMPRISE AT LEAST 60 MOLE PERCENT OF SAID COPOLYMER.
Claim 2
Dependent Claim
89 words
A COMPOSITION OF MATTER CAPABLE OF PRODUCING GLOSSY, CONTINUOUS, ALKALI-RESISTANT COATINGS COMPRISING AN AQUEOUS, ALKALINE SOLUTION OF (1) 50% TO 0.1% BY WEIGHT OF A DISSOLVED POLYEPOXY COMPOUND AND (2) 50% TO 99.9% BY WEIGHT DISSOLVED EMULSION COPOLYMER COMPRISING AS ITS TWO ESSENTIAL MONOMERS FROM 95 TO 40 MOLE PERCENT OF AN ALKYL ESTER OF AN ALPHA, BETA-ETHYLENICALLY UNSATURATED MONOCARBOXYLIC ACID AND FROM 5 TO 50 MOLE PERCENT OF AN ALKYL HALF-ESTER OF ITACONIC ACID WHEREIN SAID TWO ESSENTIAL MONOMERS COMPRISE AT LEAST 60 MOLE PERCENT OF SAID COPOLYMER.
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |