Patent US3130139A successfully refreshed from Google Patents.
US3130139A
Expired / Lapsed
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Method of making uniform dispersions of carbon black in polyolefins
Assignee: Dow Chemical Co
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Filing: 1960-09-19
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Granted: 1964-04-21
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Expires: 1980-09-19
Abstract
No abstract record available.
Inventors
- 👤 Billy G Harper
- 👤 Jack R Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:49
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/22; C08J3/226; C08K; C08K3/00; C08K3/02; C08K3/04; C08J2323/00; C08J2323/02; C08J2359/00; C08J2359/02; C08J2423/00; Y; Y10; Y10S; Y10S522/00; Y10S522/911; Y10S522/912
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A PROCESS FOR THE PRODUCTION OF AN INTIMATE DISPERSION OF CARBO BLACK AND A SOLID POLYMER OF A LOWER NON-AROMATIC HYDROCARBON MONO-OLEFIN WHICH COMPRISES SUBJECTING THE POLYMER TO IONIZING RADIATION AND SUBSEQUENTLY ADMIXING CARBON BLACK THEREWITH.
Claim 2
Dependent Claim
36 words
A PROCESS FOR THE PRODUCTION OF AN INTIMATE DISPERSION OF CARBO BLACK AND A SOLID POLYMER OF A LOWER NON-AROMATIC HYDROCARBON MONO-OLEFIN WHICH COMPRISES SUBJECTING THE POLYMER TO IONIZING RADIATION AND SUBSEQUENTLY ADMIXING CARBON BLACK THEREWITH.
References Cited (Backward Citations)
GB820168A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |