US2833783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of polychloro copper phthalocyanine
Assignee: EIDP Inc
•
Filing: 1954-04-12
•
Granted: 1958-05-06
•
Expires: 1974-04-12
Abstract
No abstract record available.
Inventors
- 👤 Ehrich Felix Frederick
- 👤 Gottlieb Hans Billroth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:30
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0032
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A PROCESS OF FORMING AN AQUEOUS PASTE OF A PIGMENTARY POLYCHLORO COPPER PHTHALOCYANINE FROM A DRY, CRUDE MASS OF SAID COLOR WHICH CONTAINS NO SUBSTANTIAL QUANTITIES OF ANY SALTS OF THE FORM MX3 AS DEFINED BELOW, WHICH COMPRISES CONTACTING SAID CRUDE WITH A METAL HALIDE OF THE FORMULA MX3, WHEREIN M IS A METAL OF THE GROUP CONSISTING OF ALUMINUM AND IRON WHILE X IS A HALOGEN OF THE GROUP CONSISTING OF CHLORINE AND BROMINE, THE QUANTITY OF SAID METAL HALIDE BEING NOT LESS THAN 2 MOLES OF MX3 PER MOLE OF PIGMENT, SAID CONTACTING BEING EFFECTED BY STIRRING SID CRUDE AND SAID METAL HALIDE TOGETHER, UNDER ANHYDROUS CONDITIONS, IN AN ORGANIC LIQUID WHICH IS WATER-IMMISIBLE AND WHICH IS CAPABLE OF DISPLACING WATER FROM THE SURFACE OF PHTHALOCYANINE PIGMENTS, WHEREBY TO EFFECT AN INTIMATE ASSOCIATION OF SAID CRUDE WITH SAID METAL HALIDE, AND THEN STIRRING THE SYSTEM THUS OBTAINED WITH WATER IN SUFFICIENT QUANTITY TO DISSOLVE OUT THE METAL HALIDE.
Claim 2
Dependent Claim
160 words
A PROCESS OF FORMING AN AQUEOUS PASTE OF A PIGMENTARY POLYCHLORO COPPER PHTHALOCYANINE FROM A DRY, CRUDE MASS OF SAID COLOR WHICH CONTAINS NO SUBSTANTIAL QUANTITIES OF ANY SALTS OF THE FORM MX3 AS DEFINED BELOW, WHICH COMPRISES CONTACTING SAID CRUDE WITH A METAL HALIDE OF THE FORMULA MX3, WHEREIN M IS A METAL OF THE GROUP CONSISTING OF ALUMINUM AND IRON WHILE X IS A HALOGEN OF THE GROUP CONSISTING OF CHLORINE AND BROMINE, THE QUANTITY OF SAID METAL HALIDE BEING NOT LESS THAN 2 MOLES OF MX3 PER MOLE OF PIGMENT, SAID CONTACTING BEING EFFECTED BY STIRRING SID CRUDE AND SAID METAL HALIDE TOGETHER, UNDER ANHYDROUS CONDITIONS, IN AN ORGANIC LIQUID WHICH IS WATER-IMMISIBLE AND WHICH IS CAPABLE OF DISPLACING WATER FROM THE SURFACE OF PHTHALOCYANINE PIGMENTS, WHEREBY TO EFFECT AN INTIMATE ASSOCIATION OF SAID CRUDE WITH SAID METAL HALIDE, AND THEN STIRRING THE SYSTEM THUS OBTAINED WITH WATER IN SUFFICIENT QUANTITY TO DISSOLVE OUT THE METAL HALIDE.
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) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |