US3150150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of delta copper phthalocyanine
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1961-02-10
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Granted: 1964-09-22
•
Expires: 1981-02-10
Abstract
No abstract record available.
Inventors
- 👤 Brand Boris Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:48
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0032; C09B67/0001; C09B67/0014; C09B67/0016; C09B67/0025; C09B67/0026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A PROCESS FOR THE MANUFACTURE OF COPPER PHTHALOCYANINE IN THE DELTA-CRYSTAL FROM HAVING AN X-RAY DIFFRACTION PATTERN EXHIBITING INTENSE LINES CORRESPONDING TO INTERPLANAR SPACINGS OF ABOUT 11.5, 8.75, 7.5, 5.0 TO 5.05, 3.78, AND 3.51 ANGSTROM UNITS AND A LINE OF MEDIUM STRENGTH CORRESPONDING TO AN INTERPLANAR SPACING OF 7.5 ANGSTROM UNITS, WHICH PROCESS COMPRISES TREATING FINELY DIVIDED COPPER PHTHALOCYANINE IN ALPHA-CRYSTAL FORM WITH WATER A SURFACE ACTIVE AGENT SELECTED FROM THE CLASS CONSISTING OF SULPHONATED METHYL OLEATE, SULPHATED CASTOR OIL, A POLYETHENOXY ALCOHOLATE, AND A POLYEHTENOXY PHENOLATE AND AN ORGANIC LIQUID SELECTED FROM THE CLASS CONSISTING OF BENZENE AND CYCLO-1:3-HEXADIENE AT A TEMPERATURE BELOW ABOUT 55*C.
Claim 2
Dependent Claim
107 words
A PROCESS FOR THE MANUFACTURE OF COPPER PHTHALOCYANINE IN THE DELTA-CRYSTAL FROM HAVING AN X-RAY DIFFRACTION PATTERN EXHIBITING INTENSE LINES CORRESPONDING TO INTERPLANAR SPACINGS OF ABOUT 11.5, 8.75, 7.5, 5.0 TO 5.05, 3.78, AND 3.51 ANGSTROM UNITS AND A LINE OF MEDIUM STRENGTH CORRESPONDING TO AN INTERPLANAR SPACING OF 7.5 ANGSTROM UNITS, WHICH PROCESS COMPRISES TREATING FINELY DIVIDED COPPER PHTHALOCYANINE IN ALPHA-CRYSTAL FORM WITH WATER A SURFACE ACTIVE AGENT SELECTED FROM THE CLASS CONSISTING OF SULPHONATED METHYL OLEATE, SULPHATED CASTOR OIL, A POLYETHENOXY ALCOHOLATE, AND A POLYEHTENOXY PHENOLATE AND AN ORGANIC LIQUID SELECTED FROM THE CLASS CONSISTING OF BENZENE AND CYCLO-1:3-HEXADIENE AT A TEMPERATURE BELOW ABOUT 55*C.
References Cited (Backward Citations)
US2699444A
Cited
US3051721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |