Patent US3222294A successfully refreshed from Google Patents.
US3222294A
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Catalyst for bulk and solution polymerization
Assignee: Elektrochemische Werke Muenchen AG
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Filing: 1962-12-21
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Granted: 1965-12-07
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Expires: 1982-12-21
Abstract
No abstract record available.
Inventors
- 👤 Heinz W Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:07
CPC Classifications
B; B21; B21D; B21D22/00; B21D22/14; B01; B01J; B01J31/00; B01J31/02; B01J31/0201; B01J31/0202; B01J31/0204; B01J31/0209; B01J31/0234; B01J31/0255; B01J31/0257; B01J31/0258; B21H; B21H1/00; B21H1/02; B21H1/04; C; C01; C01B; C01B15/00; C01B15/01; C01B15/022; C01B15/023; C01B15/037; C08; C08F; C08F283/00; C08F283/01; C08F4/00; C08F4/28; C08K; C08K5/00; C08K5/04; C08K5/10; C08L; C08L67/00; C08L67/06; Y; Y10; Y10S; Y10S260/00; Y10S260/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A CATALYST COMPOSITION SUITABLE FOR BLOCK AND SOLUTION POLYMERIZATION CONSISTING ESSENTIALLY OF A SOLUTION OF ABOUT 10 TO 25 PERCENT BY WEIGHT OF HYDROGEN PEROXIDE IN A SUBSTANTIALLY ANHYDROUS ESTER OF AN ACID SELECTED FROM THE GROUP CONSISTING OF PHOSPHORIC ACID, AND CARBONIC ACID, WITH A MEMBER OF THE GROUP CONSISTING OF SATURATED ALIPHATIC ALCOHOLS CONTAINING NOT MORE THAN 4 CARBON ATOMS AND ETHER ALCOHOLS OF THE FORMULA
Claim 2
Dependent Claim
39 words
A CATALYST COMPOSITION SUITABLE FOR BLOCK AND SOLUTION POLYMERIZATION CONSISTING ESSENTIALLY OF A SOLUTION OF ABOUT 10 TO 50 PERCENT BY WEIGHT OF HYDROGEN PEROXIDE IN A SUBSTANTIALLY ANHYDROUS PHTHALIC ACID ESTER OF AN ETHER ALCOHOL OF THE FORMULA
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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |