US2898259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unsaturated polyester vinylmonomer, heterocyclic nitrogen monomer and method of preparing laminated article therefrom
Assignee: Phillips Petroleum Co
•
Filing: 1954-12-03
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Granted: 1959-08-04
•
Expires: 1974-12-03
Abstract
No abstract record available.
Inventors
- 👤 Charles E Wheelock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:55
CPC Classifications
C; C08; C08L; C08L67/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A METHOD OF PREPARING A THERMOSET LAMINATE OF HIGH FLEXURAL STRENGTH WHICH COMPRISES BLENDING 10 TO 90 WEIGHT PARTS PER 100 PARTS COREACTIVE MATERIALS OF A POLYESTER RESIN OF A POLYHYDRIC ALCOHOL AND AN ETHYLENIC UNSATURATED ALIPHATIC POLYCARBOXYLIC ACID, 2 TO 90 WEIGHT PERCENT OF THE REMAINING MATERIAL BEING A HETEROCYCLIC NITROGEN BASE MONOMER SELECTED FROM THE GROUP CONSISTING OF VINYL SUBSTITUTED PYRIDINES, ISOPRPENYL SUBSTITUTED PYRIDINES, VINYL SUBSTITUTED QUINOLINES AND ISOPROPENYL SUBSTITUTED QUINOLINES, AND A THIRD POLYMERIZABLE MATERIAL SELECTED FROM THE GROUP CONSISTING OF ETHYLENIC UNSATURATED AROMATIC AND NONCONJUGATED ALIPHATIC COPOLYMERIZABLE MONOMERS COATING A PLURALITY OF FABRIC SHEETS WITH THE BLEND CONTAINING THE COMPOUNDING INGREDIENTS; SUPERIMPOSING THE RESULTING COATED SHEETS ONE ON THE OTHER TO FORM A PLURALITY OF PLIES; AND SUBJECTING THE PLIES TO A TEMPERATURE IN THE RANGE OF 25 TO 200* C. FOR A TIME SUFFICIENT TO CAUSE THE SAID BLEND TO SET.
Claim 2
Independent Claim
146 words
A METHOD OF PREPARING A THERMOSET LAMINATE OF HIGH FLEXURAL STRENGTH WHICH COMPRISES BLENDING 10 TO 90 WEIGHT PARTS PER 100 PARTS COREACTIVE MATERIALS OF A POLYESTER RESIN OF A POLYHYDRIC ALCOHOL AND AN ETHYLENIC UNSATURATED ALIPHATIC POLYCARBOXYLIC ACID, 2 TO 90 WEIGHT PERCENT OF THE REMAINING MATERIAL BEING A HETEROCYCLIC NITROGEN BASE MONOMER SELECTED FROM THE GROUP CONSISTING OF VINYL SUBSTITUTED PYRIDINES, ISOPRPENYL SUBSTITUTED PYRIDINES, VINYL SUBSTITUTED QUINOLINES AND ISOPROPENYL SUBSTITUTED QUINOLINES, AND A THIRD POLYMERIZABLE MATERIAL SELECTED FROM THE GROUP CONSISTING OF ETHYLENIC UNSATURATED AROMATIC AND NONCONJUGATED ALIPHATIC COPOLYMERIZABLE MONOMERS COATING A PLURALITY OF FABRIC SHEETS WITH THE BLEND CONTAINING THE COMPOUNDING INGREDIENTS; SUPERIMPOSING THE RESULTING COATED SHEETS ONE ON THE OTHER TO FORM A PLURALITY OF PLIES; AND SUBJECTING THE PLIES TO A TEMPERATURE IN THE RANGE OF 25 TO 200* C. FOR A TIME SUFFICIENT TO CAUSE THE SAID BLEND TO SET.
References Cited (Backward Citations)
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US2510503A
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US2600457A
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US2813086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |