Patent US3699385A successfully refreshed from Google Patents.
Patent US3080375A successfully refreshed from Google Patents.
US3080375A
Expired / Lapsed
US
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Acid milling of phthalocyanine pigments
Assignee: GAF Chemicals Corp
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Filing: 1959-10-20
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Granted: 1963-03-05
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Expires: 1979-10-20
Abstract
No abstract record available.
Inventors
- 👤 Katz Leon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:16
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0001; C09B67/0017; C09B67/0019
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A PROCESS COMPRISING MILLING WITH FORCES PREDOMINANTLY SHEARING IN NATURE, A MIXTURE CONSISTING ESSENTIALLY OF (1) A PHTHALOCYANINE PIGMENT, (2) 0 TO 5 PARTS OF A WATER-SOLUBLE INORGANIC SALT SELECTED FROM THE GROUP CONSISTING OF THE SULFATES, PHOSPHATES, ACID SULFATES AND ACID PHOSPHATES OF SODIUM AND POTASSIUM, PER PART OF SAID PIGMENT, AND (3) AN AMOUNT OF AN ARYL CARBOCYCLIC SULFONIC ACID WITHIN THE RANGE OF ABOUT 0.5 TO 5 PARTS PER PART OF SAID PIGMENT AND SUFFICIENT TO YIELD A DOUGHY KNEADABLE MASS, AND THEN DILUTING THE MILLED MIXTURE WITH WATER.
Claim 2
Dependent Claim
92 words
A PROCESS COMPRISING MILLING WITH FORCES PREDOMINANTLY SHEARING IN NATURE, A MIXTURE CONSISTING ESSENTIALLY OF (1) A PHTHALOCYANINE PIGMENT, (2) 0 TO 5 PARTS OF A WATER-SOLUBLE INORGANIC SALT SELECTED FROM THE GROUP CONSISTING OF THE SULFATES, PHOSPHATES, ACID SULFATES AND ACID PHOSPHATES OF SODIUM AND POTASSIUM, PER PART OF SAID PIGMENT, AND (3) AN AMOUNT OF AN ARYL CARBOCYCLIC SULFONIC ACID WITHIN THE RANGE OF ABOUT 0.5 TO 5 PARTS PER PART OF SAID PIGMENT AND SUFFICIENT TO YIELD A DOUGHY KNEADABLE MASS, AND THEN DILUTING THE MILLED MIXTURE WITH WATER.
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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |