US3238159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous dispersions of copolymers of alkyl half esters of itaconic acid with mineral pigments
Assignee: Primary Products Ingredients Americas LLC
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Filing: 1962-10-29
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Granted: 1966-03-01
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Expires: 1982-10-29
Abstract
No abstract record available.
Inventors
- 👤 Benedetti Paul E Di
- 👤 Norwin W Wolff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:03
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/01; C08K3/013; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31971; Y10T428/31975; Y10T428/31993
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
AN AQUEOUS PAPER COATING COLOR COMPRISING AS ITS PRINCIPAL DRY COMPONENTS A MAJOR PROPORTION OF A MINERAL PIGMENT AND A MINOR PROPORTION OF A DISPERSION OF A HIGH MOLECULAR WEIGHT EMULSION COPOLYMER, COMPRISING AS ITS TWO ESSENTIAL MONOMERS FROM 40 TO 95 MOLE LPERCENT 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 THE TOTAL MOLE PERCENT OF SAID ESSENTIAL MONOMERS IS FROM 60 TO 100 MOLE PERCENT OF SAID COPOLYMER.
Claim 2
Dependent Claim
88 words
AN AQUEOUS PAPER COATING COLOR COMPRISING AS ITS PRINCIPAL DRY COMPONENTS A MAJOR PROPORTION OF A MINERAL PIGMENT AND A MINOR PROPORTION OF A DISPERSION OF A HIGH MOLECULAR WEIGHT EMULSION COPOLYMER, COMPRISING AS ITS TWO ESSENTIAL MONOMERS FROM 40 TO 95 MOLE LPERCENT 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 THE TOTAL MOLE PERCENT OF SAID ESSENTIAL MONOMERS IS FROM 60 TO 100 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 |