Patent US3070588A successfully refreshed from Google Patents.
US3070588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating and drying polymeric substances
Assignee: Dow Chemical Co
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Filing: 1955-12-29
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Granted: 1962-12-25
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Expires: 1975-12-29
Abstract
No abstract record available.
Inventors
- 👤 John D Klink
- 👤 Frank H Justin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:34
CPC Classifications
C; C08; C08J; C08J3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
PROCESS FOR TREATING POLYMERIZED OLEFINIC MATERIAL PREPARED WITH A CATALYST FORMED BY ADMIXING A STRONG REDUCING AGENT WITH COMPOUNDS OF THE GROUP IV-B, V-B AND VI-B METALS OF THE MENDELEEFF PERIODIC SYSTEM AND CONTAINING CATALYST RESIDUES AFTER HAVING BEEN POLYMERIZED WHICH COMPRISES UNIFORMLY MIXING AND WETTING THE CATALYST RESIDUE-CONTAINING POLYMERIZED PRODUCT WITH WATER CONTAINING A DISSOLVED SYNTHETIC DETERGENT SURFAVTANT MATERIAL TO PRODUCE A HOMOGENEOUS, FREE-FLOWING MIXTURE THEN DIELECTRICALLY HEATING THE WET POLYMERIC PRODUCT TO DRYNESS.
Claim 2
Dependent Claim
75 words
PROCESS FOR TREATING POLYMERIZED OLEFINIC MATERIAL PREPARED WITH A CATALYST FORMED BY ADMIXING A STRONG REDUCING AGENT WITH COMPOUNDS OF THE GROUP IV-B, V-B AND VI-B METALS OF THE MENDELEEFF PERIODIC SYSTEM AND CONTAINING CATALYST RESIDUES AFTER HAVING BEEN POLYMERIZED WHICH COMPRISES UNIFORMLY MIXING AND WETTING THE CATALYST RESIDUE-CONTAINING POLYMERIZED PRODUCT WITH WATER CONTAINING A DISSOLVED SYNTHETIC DETERGENT SURFAVTANT MATERIAL TO PRODUCE A HOMOGENEOUS, FREE-FLOWING MIXTURE THEN DIELECTRICALLY HEATING THE WET POLYMERIC PRODUCT TO DRYNESS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |