US2548091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alpha-halogen substituted acrylic compounds
Assignee: GAF Chemicals Corp
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Filing: 1945-06-23
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Granted: 1951-04-10
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Expires: 1965-06-23
Abstract
No abstract record available.
Inventors
- 👤 Carl E Barnes
- 👤 Jr William O Ney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:13
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
THE PROCESS OF PRODUCING COLORLESS, COLORSTABLE, TRANSPARENT MASS POLYMERS, FORM-STABLE AT A TEMPERATURE OF 100* C., FROM MONOMERIC POLYMERIZABLE A-HALOGEN SUBSTITUTED ACRYLIC ACID COMPOUNDS, WHICH CONSISTS IN DISSOLVING IN THE MONOMER FROM 0.1 TO 15% OF A MONOHYDRIC ALCOHOL HAVING AT MOST 9 CARBON ATOMS AND IN WHICH THE HYDROXYL RADICAL IS ATTACHED TO A HYDROCARBON RADICAL, THE AMOUNT OF SAID ALCOHOL BEING SUFFICIENT TO CONVERT ALL OF THE OXALYL HALIDE COMPOUNDS FORMED BY SPONTANEOUS OXIDATION OF THE MONOMER PRIOR TO AND DURING POLYMERIZATION THEREOF INTO COLORLESS, INERT ORGANIC REACTION PRODUCTS, WITHOUT EXCEEDING THE LIMIT OF SOLUBILITY OF ANY RESIDUAL UNREACTED PORTION OF SAID ALCOHOL AND ITS OXALYL HALIDE REACTION PRODUCTS IN THE RESULTING POLYMER; AND THEN MASS POLYSOFTENING OF SAID POLYMER; AND THEN MASS POLYMERIZING, BY SUBJECTING TO POLYMERIZING INFLUENCES, THE RESULTING MONOMER COMPOSITION, STABILIZED AGAINST DISCOLORATION, THUS OBTAINED.
Claim 2
Dependent Claim
140 words
THE PROCESS OF PRODUCING COLORLESS, COLORSTABLE, TRANSPARENT MASS POLYMERS, FORM-STABLE AT A TEMPERATURE OF 100* C., FROM MONOMERIC POLYMERIZABLE A-HALOGEN SUBSTITUTED ACRYLIC ACID COMPOUNDS, WHICH CONSISTS IN DISSOLVING IN THE MONOMER FROM 0.1 TO 15% OF A MONOHYDRIC ALCOHOL HAVING AT MOST 9 CARBON ATOMS AND IN WHICH THE HYDROXYL RADICAL IS ATTACHED TO A HYDROCARBON RADICAL, THE AMOUNT OF SAID ALCOHOL BEING SUFFICIENT TO CONVERT ALL OF THE OXALYL HALIDE COMPOUNDS FORMED BY SPONTANEOUS OXIDATION OF THE MONOMER PRIOR TO AND DURING POLYMERIZATION THEREOF INTO COLORLESS, INERT ORGANIC REACTION PRODUCTS, WITHOUT EXCEEDING THE LIMIT OF SOLUBILITY OF ANY RESIDUAL UNREACTED PORTION OF SAID ALCOHOL AND ITS OXALYL HALIDE REACTION PRODUCTS IN THE RESULTING POLYMER; AND THEN MASS POLYSOFTENING OF SAID POLYMER; AND THEN MASS POLYMERIZING, BY SUBJECTING TO POLYMERIZING INFLUENCES, THE RESULTING MONOMER COMPOSITION, STABILIZED AGAINST DISCOLORATION, THUS OBTAINED.
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) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |