Patent US2535557A successfully refreshed from Google Patents.
US2535557A
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Emulsion polymerization of unsaturated organic compounds
Assignee: Hercules Powder Co
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Filing: 1948-01-27
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Granted: 1950-12-26
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Expires: 1968-01-27
Abstract
No abstract record available.
Inventors
- 👤 Warren L Walton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:32
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/28; C08F2/00; C08F2/38; C08F36/00; C08F36/02; C08F36/04; Y; Y10; Y10S; Y10S260/00; Y10S260/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
THE PROCESS WHICH COMPRISES POLYMERIZING AN ORGANIC COMPOUND CONTAINING THE CH2=C< GROUP AND WHICH IS CAPBALE TO BEING POLYMERIZED BY A PEROXIDE CATALYST, IN AQUEOUS EMULSION IN THE PRESENCE OF A TERTIARY MENTHANE THIOL IN AN AMOUNT OF ABOUT 0.05% TO ABOUT 1.0% BASED ON THE MONOMERIC MATERIAL.
Claim 2
Dependent Claim
48 words
THE PROCESS WHICH COMPRISES POLYMERIZING AN ORGANIC COMPOUND CONTAINING THE CH2=C< GROUP AND WHICH IS CAPBALE TO BEING POLYMERIZED BY A PEROXIDE CATALYST, IN AQUEOUS EMULSION IN THE PRESENCE OF A TERTIARY MENTHANE THIOL IN AN AMOUNT OF ABOUT 0.05% TO ABOUT 1.0% BASED ON THE MONOMERIC MATERIAL.
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) | 1953-12-25 | 1954-06-26 | 1954-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-25 | 1958-06-26 | 1958-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-25 | 1962-06-26 | 1962-12-26 | $7700.00 | Window Closed / Lapsed |