US3353974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pigmented masterbatch compositions and a method for preparing same
Assignee: Continental Carbon Co
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Filing: 1965-10-04
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Granted: 1967-11-21
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Expires: 1985-10-04
Abstract
No abstract record available.
Inventors
- 👤 Stanley C Trimble
- 👤 Kenneth D Hewitt
- 👤 Fred S Thornhill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:30
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071; C09B67/0092; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C01; C01P; C01P2004/00; C01P2004/60; C01P2004/62; C01P2006/00; C01P2006/19; C01P2006/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A PROCESS FOR DISPERSING A PIGMENT SELECTED FROM THE GROUP CONSISTING OF AN INORGANIC PIGMENT, AN ORGANIC PIGMENT AND MIXTURES THEREOF IN A NON-RESINOUS MATRIX SELECTED FROM THE GROUP CONSISTING OF A NONVOLATILE HYDROCARBON OIL, AN ORGANIC WAX AND MIXTURES THEREOF, SAID MATRIX BEING CAPABLE TOGETHER WITH THE PIGMENT OF PROVIDING A MIXTURE OF SUFFICIENT PLASTICITY TO DEVELOP A HIGH SHEAR IN AN EXTRUDER WHICH COMPRISES EXTRUDING A PLASTIC MIXTURE OF THE PIGMENT AND MATRIX TO THE EXTENT NECESSARY TO PRODUCE A HOMOGENEOUS DISPERSION OF THE PIGMENT THROUGHOUT THE MATRIX WITH CONCOMITANT REDUCTION OF THE AGGLOMERATES PRESENT TO A PARTICLE SIZE OF LESS THAN ONE MICRON.
Claim 2
Dependent Claim
106 words
A PROCESS FOR DISPERSING A PIGMENT SELECTED FROM THE GROUP CONSISTING OF AN INORGANIC PIGMENT, AN ORGANIC PIGMENT AND MIXTURES THEREOF IN A NON-RESINOUS MATRIX SELECTED FROM THE GROUP CONSISTING OF A NONVOLATILE HYDROCARBON OIL, AN ORGANIC WAX AND MIXTURES THEREOF, SAID MATRIX BEING CAPABLE TOGETHER WITH THE PIGMENT OF PROVIDING A MIXTURE OF SUFFICIENT PLASTICITY TO DEVELOP A HIGH SHEAR IN AN EXTRUDER WHICH COMPRISES EXTRUDING A PLASTIC MIXTURE OF THE PIGMENT AND MATRIX TO THE EXTENT NECESSARY TO PRODUCE A HOMOGENEOUS DISPERSION OF THE PIGMENT THROUGHOUT THE MATRIX WITH CONCOMITANT REDUCTION OF THE AGGLOMERATES PRESENT TO A PARTICLE SIZE OF LESS THAN ONE MICRON.
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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |