US3266924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing free-flowing additives mixture for polyethylene
Assignee: Millennium Petrochemicals Inc
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Filing: 1962-07-26
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Granted: 1966-08-16
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Expires: 1982-07-26
Abstract
No abstract record available.
Inventors
- 👤 Don C Haeske
- 👤 Floyd L Cassidy
- 👤 John L Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:30
CPC Classifications
C; C08; C08K; C08K9/00; C08K9/04; C08J; C08J3/00; C08J3/20; C08J3/22; C08K3/00; C08K3/34; C08K3/36; C08K5/00; C08K5/16; C08K5/20; C08J2323/00; C08J2323/02; C08J2323/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A METHOD FOR PRODUCING A HOMOGENEOUS MIXTURE OF ADDITIVES COMPRISING THE STEPS OF CHARGING TO A MIXING ZONE FROM ABOUT 40% TO 77% OF FINELY DIVIDED SILICEOUS MATERIAL, BASED ON THE WEIGHT OF THE ADDITIVES MIXTURE, SAID SILICEOUS MATERIAL HAVING AN AVERAGE PARTICLE SIZE OF FROM BETWEEN ABOUT 0.01 TO 10 MICRONS; HEATING THE SILICEOUS MATERIAL TO A TEMPERATURE OF FROM ABOUT 160* TO 240*F.; CHARGING TO SAID MIXING ZONE WITH AGITATION FROM ABOUT 23% TO 60%, BASED ON THE WEIGHT OF THE ADDITIVES MIXTURE, OF A FATTY ACID AMIDE SLIP AGENT; COOLING SAID MIXTURE TO A POINT BELOW THE SOIDIFICATION TEMPERATURE OF THE AMIDE WHILE CONTINUING AGITATION; AND RECOVERING THE RESULTING POWER-LIKE MIXTURE FROM SAID ZONE.
Claim 2
Independent Claim
117 words
A METHOD FOR PRODUCING A HOMOGENEOUS MIXTURE OF ADDITIVES COMPRISING THE STEPS OF CHARGING TO A MIXING ZONE FROM ABOUT 40% TO 77% OF FINELY DIVIDED SILICEOUS MATERIAL, BASED ON THE WEIGHT OF THE ADDITIVES MIXTURE, SAID SILICEOUS MATERIAL HAVING AN AVERAGE PARTICLE SIZE OF FROM BETWEEN ABOUT 0.01 TO 10 MICRONS; HEATING THE SILICEOUS MATERIAL TO A TEMPERATURE OF FROM ABOUT 160* TO 240*F.; CHARGING TO SAID MIXING ZONE WITH AGITATION FROM ABOUT 23% TO 60%, BASED ON THE WEIGHT OF THE ADDITIVES MIXTURE, OF A FATTY ACID AMIDE SLIP AGENT; COOLING SAID MIXTURE TO A POINT BELOW THE SOIDIFICATION TEMPERATURE OF THE AMIDE WHILE CONTINUING AGITATION; AND RECOVERING THE RESULTING POWER-LIKE MIXTURE FROM SAID ZONE.
References Cited (Backward Citations)
US2956035A
Cited
US2971922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |