US2830032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cross-linked copolymers of a polymerizable monomer with an unsaturated copolymer of a vinyl ether and vinyl allyl ether and process for making same
Assignee: BASF SE
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Filing: 1954-09-28
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Granted: 1958-04-08
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Expires: 1974-09-28
Abstract
No abstract record available.
Inventors
- 👤 Siebel Hans Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:37
CPC Classifications
C; C08; C08F; C08F261/00; C08F261/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A CROSS-LINKED COPOLYMER MADE BY FREE RADICAL POLYMERIZATION OF A MIXTURE OF FROM 10 TO 95 PARTS BY WEIGHT OF A LIQUID MONOOLEFINIC COMPOUND CONTAINING THE GROUP CH2=CR-, WHEREIN R IS A MEMBER OF THE GROUP CONSISTING OF HYDROGEN AND METHYL, AND FROM 90 TO 5 PARTS BY WEIGHT OF AN UNSATURATED COPOLYMER PREPARED BY POLYMERIZING A VINYL ETHER OF A SATURATED MONOHYDRIC ALCOHOL AND VINYL ALLYL ETHER IN THE PRESENCE OF A CATIONIC POLYMERIZATION CATALYST, SAID UNSATURATED COPOLYMER CONTAINING UNREACTED ALLYL GROUPS.
Claim 2
Dependent Claim
83 words
A CROSS-LINKED COPOLYMER MADE BY FREE RADICAL POLYMERIZATION OF A MIXTURE OF FROM 10 TO 95 PARTS BY WEIGHT OF A LIQUID MONOOLEFINIC COMPOUND CONTAINING THE GROUP CH2=CR-, WHEREIN R IS A MEMBER OF THE GROUP CONSISTING OF HYDROGEN AND METHYL, AND FROM 90 TO 5 PARTS BY WEIGHT OF AN UNSATURATED COPOLYMER PREPARED BY POLYMERIZING A VINYL ETHER OF A SATURATED MONOHYDRIC ALCOHOL AND VINYL ALLYL ETHER IN THE PRESENCE OF A CATIONIC POLYMERIZATION CATALYST, SAID UNSATURATED COPOLYMER CONTAINING UNREACTED ALLYL GROUPS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |