Patent US4455370A successfully refreshed from Google Patents.
Patent US2833741A successfully refreshed from Google Patents.
US2833741A
Expired / Lapsed
US
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Method of polymerizing acrylate esters in the presence of an organo-metallic inhibitor
Assignee: H D Justi & Son Inc
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Filing: 1956-03-29
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Granted: 1958-05-06
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Expires: 1976-03-29
Abstract
No abstract record available.
Inventors
- 👤 Lal Joginder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:51
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/38; C08F2/40; C08F20/00; C08F20/02; C08F20/10; C08F20/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A METHOD OF FORMING A POLYMER OF AN ESTER OF AN ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID OF AND METHACRYLIC ACID COMPRISING POLYMERIZING SAID ESTER IN THE PRESENCE OF AN ORGANIC PEROXIDE POLYMERIZATION CATALYST AND FROM ABOUT 0.0006 TO ABOUT 0.1% OF A METAL ORGANIC COMPOUND OF THE FORMULA R1R2R3ME WHEREIN R1 AND R2 ARE SELECTED FROM THE GROUP CONSISTING OF PHENYL, TOLYL AND ALKOXYPHENYL, R3 IS SELECTED FROM THE GROUP CONSISTING OF PHENYL, TOLYL ALKOXYPHENYL, LOWER ALKYL AND ALKYLOL AND ME IS A METAL SELECTED FROM THE GROUP CONSISTING OF ANTIMONY, PHOSPHOROUS, ARSENIC AND BISMUTH.
Claim 2
Independent Claim
99 words
A METHOD OF FORMING A POLYMER OF AN ESTER OF AN ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLIC ACID OF AND METHACRYLIC ACID COMPRISING POLYMERIZING SAID ESTER IN THE PRESENCE OF AN ORGANIC PEROXIDE POLYMERIZATION CATALYST AND FROM ABOUT 0.0006 TO ABOUT 0.1% OF A METAL ORGANIC COMPOUND OF THE FORMULA R1R2R3ME WHEREIN R1 AND R2 ARE SELECTED FROM THE GROUP CONSISTING OF PHENYL, TOLYL AND ALKOXYPHENYL, R3 IS SELECTED FROM THE GROUP CONSISTING OF PHENYL, TOLYL ALKOXYPHENYL, LOWER ALKYL AND ALKYLOL AND ME IS A METAL SELECTED FROM THE GROUP CONSISTING OF ANTIMONY, PHOSPHOROUS, ARSENIC AND BISMUTH.
References Cited (Backward Citations)
US2314466A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |