Patent US2501647A successfully refreshed from Google Patents.
US2501647A
Expired / Lapsed
US
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Method of forming resinous products derived from haloacrylic acid compounds
Assignee: GAF Chemicals Corp
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Filing: 1945-06-23
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Granted: 1950-03-21
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Expires: 1965-06-23
Abstract
No abstract record available.
Inventors
- 👤 Jr William O Ney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:25
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
THE PROCESS OF PRODUCING COLORLESS, COLORSTABLE TRANSPARENT POLYMERS, FORM-STABLE AT TEMPERATURES EXCEEDING 100*C., FROM MONOMERIC POLYMERIZABLE A-HALOGEN SUBSTITUTED ACRYLIC ACID COMPOUNDS, WHICH CONSISTS IN INCORPORATING IN THE MONOMER FROM 0.0025 TO 0.25% OF WATER, AND UP TO 5% OF A MONOHYDRIC ALCOHOL HAVING AT MOST 9 CARBON ATOMS AND IN WHICH THE HYDROXYL RADICAL IS ATTACHED TO A HYDROCARBON RADICAL, AND THEN MASS POLYMERIZING THE RESULTING MONOMER COMPOSITION, STABILIZED AGAINST COLOR, THUS OBTAINED.
Claim 2
Dependent Claim
73 words
THE PROCESS OF PRODUCING COLORLESS, COLORSTABLE TRANSPARENT POLYMERS, FORM-STABLE AT TEMPERATURES EXCEEDING 100*C., FROM MONOMERIC POLYMERIZABLE A-HALOGEN SUBSTITUTED ACRYLIC ACID COMPOUNDS, WHICH CONSISTS IN INCORPORATING IN THE MONOMER FROM 0.0025 TO 0.25% OF WATER, AND UP TO 5% OF A MONOHYDRIC ALCOHOL HAVING AT MOST 9 CARBON ATOMS AND IN WHICH THE HYDROXYL RADICAL IS ATTACHED TO A HYDROCARBON RADICAL, AND THEN MASS POLYMERIZING THE RESULTING MONOMER COMPOSITION, STABILIZED AGAINST COLOR, THUS OBTAINED.
References Cited (Backward Citations)
GB411860A
Cited
US2387571A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-20 | 1953-09-19 | 1954-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-20 | 1957-09-19 | 1958-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-20 | 1961-09-19 | 1962-03-21 | $7700.00 | Window Closed / Lapsed |