US3449284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Masterbatching elastomer solution polymers
Assignee: Phillips Petroleum Co
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Filing: 1963-05-20
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Granted: 1969-06-10
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Expires: 1983-05-20
Abstract
No abstract record available.
Inventors
- 👤 Lyle W Pollock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:43
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/205; C08J3/21; C08J3/215; C08L; C08L21/00; C08J2321/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
PROCESS FOR INCORPATING CARBON BLACK IN A RUBBER WHICH COMPRISES SIMPLE MIXING OF A LOW VISCOSITY SLURRY OF CARBON BLACK IN WATER WITH A SOLUTION OF THE RUBBER IN AN ORGANIC SOLVENT, MAINTAINING TWO SEPARATE LIQUID PHASES TO ENSURE THE SUBSTANTIALLY COMPLETE MIGRATION OF THE CARBON BLACK FROM THE AQUEOUS SLURRY TO THE SOLUTION OF RUBBER IN ORGANIC SOLVENT AND THEREAFTER REMOVING THE ORGANIC SOLVENT AND THE WATER FROM THE MIXTURE TO PRODUCE
Claim 2
Dependent Claim
73 words
PROCESS FOR INCORPATING CARBON BLACK IN A RUBBER WHICH COMPRISES SIMPLE MIXING OF A LOW VISCOSITY SLURRY OF CARBON BLACK IN WATER WITH A SOLUTION OF THE RUBBER IN AN ORGANIC SOLVENT, MAINTAINING TWO SEPARATE LIQUID PHASES TO ENSURE THE SUBSTANTIALLY COMPLETE MIGRATION OF THE CARBON BLACK FROM THE AQUEOUS SLURRY TO THE SOLUTION OF RUBBER IN ORGANIC SOLVENT AND THEREAFTER REMOVING THE ORGANIC SOLVENT AND THE WATER FROM THE MIXTURE TO PRODUCE
References Cited (Backward Citations)
US2986547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |