US3557048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic dispersions of colored crosslinkable copolymers and their production
Assignee: BASF SE
•
Filing: 1967-11-20
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Granted: 1971-01-19
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Expires: 1987-11-20
Abstract
Abstract ORGANIC DISPERSION OF COLORED CROSSLINKABLE COPOLYMERS OBTAINED BY FREE-RADICAL COPOLYMERIZATION OF (A) A DYE WHICH CONTAINS A POLYMERIZABLE OLEFINICALLY UNSATURATED GROUP IN THE MOLECULE WITH (B) A COMONOMER CONTAINING IN THE MOLECULE AT LEAST ONE N-METHYLOL OR N-ALKOXYMETHYL GROUP AND (C) A PREPONDERANT AMOUNT OF A COLORLESS COMONOMER. WHICH DOES NOT CONTAIN ANY GROUPS CAPBLE OF UNDERGOING CONDENSATION, IN (D) AN ORGANIC LIQUID IN WHICH THE COPOLYMER FORMED IS NOT SOLUBLE, IN THE PRESENCE OF (E) A COPOLYMER WHICH IS SOLUBLE IN THE ORGANIC LIQUID (D) AND HAS BEEN PREPARED FROM COMONOMERS FROM GROUPS (B) AND (C).
Inventors
- 👤 Hans Wilhelm
- 👤 Klaus Gulbins
- 👤 Heinrich Hartmann
- 👤 Guenter Lange
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:33
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/0056; D06P1/006; C; C08; C08F; C08F2/00; C08F2/04; C08F2/06; C08F2/08; C08F291/00; C09; C09B; C09B69/00; C09B69/10; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/285; D06M15/29
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |