US3554950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wax-polymer compositions
Assignee: Atlantic Richfield Co
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Filing: 1968-08-01
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Granted: 1971-01-12
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Expires: 1988-08-01
Abstract
Abstract THIS INVENTION RELATES TO WAX COMPOSITIONS AND TO A METHOD FOR PRODUCING A SUITABLE DISPERSION IN WAX OF INSOLUBLE POLYMER OF THE VINYL AND VINYLIDENE SERIES WHICH COMPRISES POLYMERIZING THE MONOMERS IN SITU IN MOLTEN WAX IN THE PRESENCE OF A WAX-SOLUBLE POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 8,000. PREFERABLY, THE WAXINSOLUBLE POLYMER IS A BUTADIENE-STYRENE COPOLYMER HAVING FROM 50-85 WEIGHT PERCENT BOUND STYRENE AND THE WAX-SOLUBLE POLYMER IS AN ETHYLENE/VINYLACETATE COPOLYMER HAVING FROM 5-50 WEIGHT PERCENT BOUND VINYL ACETATE. THE INSOLUBLE POLYMER MAY BE INCORPORATED INTO THE WAX IN AMOUNTS RANGING FROM 5-400 PARTS PER 100 PARTS OF WAX.
Inventors
- 👤 Richard W Sauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:30
CPC Classifications
C; C08; C08F; C08F289/00; C08L; C08L91/00; C08L91/06; C08L91/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |