Patent US5000339A successfully refreshed from Google Patents.
Patent US3043822A successfully refreshed from Google Patents.
US3043822A
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New polymerization process
Assignee: BASF Schweiz AG
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Filing: 1958-07-21
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Granted: 1962-07-10
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Expires: 1978-07-21
Abstract
No abstract record available.
Inventors
- 👤 Maeder Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:08
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/04; C08F2/06; C08F2/12; C08F2/16; C08F20/00; C08F20/02; C08F20/10; C08F20/34; C08F20/52; C08F20/54; C08F20/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A PROCESS FOR THE MANURACTURE OF POLYMERS BY POLYMERIZING IN A POLYMERIZATION MEDIUM AT LEAST ONE MONOMER WHICH CONTAINS ONE POLYMERIZABLE CARBON-TO-CARBON DOUBLE BOND AND ONE TO TWO BASIC TERTIARY AMINO GROUPS, WITH THE AID OF A FREE RADICAL-FORMING ADDITION POLYMERIZATION CATALYST, WHICH PROCESS COMPRISES SATURATING THE POLYMERIZATION MEDIUM UNDER ATMOSPHERIC PRESSURE WITH ACETYLENE AND APOLYMERIZING THE MONOMER IN FREE BASE STATE UNDER ATMOSPHERIC PRESSURE, A STREAM OF ACETYLENE BUBBLING THROUGH THE POLYMERIZATION MEDIUM THROUGHOUT THE POLYMERIZATION.
Claim 2
Dependent Claim
77 words
A PROCESS FOR THE MANURACTURE OF POLYMERS BY POLYMERIZING IN A POLYMERIZATION MEDIUM AT LEAST ONE MONOMER WHICH CONTAINS ONE POLYMERIZABLE CARBON-TO-CARBON DOUBLE BOND AND ONE TO TWO BASIC TERTIARY AMINO GROUPS, WITH THE AID OF A FREE RADICAL-FORMING ADDITION POLYMERIZATION CATALYST, WHICH PROCESS COMPRISES SATURATING THE POLYMERIZATION MEDIUM UNDER ATMOSPHERIC PRESSURE WITH ACETYLENE AND APOLYMERIZING THE MONOMER IN FREE BASE STATE UNDER ATMOSPHERIC PRESSURE, A STREAM OF ACETYLENE BUBBLING THROUGH THE POLYMERIZATION MEDIUM THROUGHOUT THE POLYMERIZATION.
References Cited (Backward Citations)
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Cited
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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) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |