US2824085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame resistant polyester resins prepared from reaction of a poly (alkylene) maleate and a dialkyl hydrogen phosphite
Assignee: Uniroyal Inc
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Filing: 1954-05-18
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Granted: 1958-02-18
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Expires: 1974-05-18
Abstract
No abstract record available.
Inventors
- 👤 Cummings William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:30
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/692; C08G63/6924; C08G63/6928
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A METHOD OF MAKING A PHOSPHORUS-BOUND FUSIBLE ALKYD PRODUCT WHICH WHEN CROSS-LINKED WITH A COPOLYMERIZABLE ETHYLENIC COMPOUND CONTAINING THE CH2=C< GROUP PROVIDES A FLAME-RESISTANT INFUSIBLE COPOLYMER RESIN WHICH COMPRISES REACTING 1 MOLE PROPORTION OF AN UNSATURATED ALKYD SELECTED FROM THE CLASS CONSISTING OF GLYCOL POLYESTERS OF ALPHA-UNSATURATED DICARBOXYLIC ACIDS AND MIXTURES OF SUCH ACIDS WITH DICARBOXYLIC ACIDS FREE OF POLYMERIZABLE UNSATURATION, WITH FROM 0.2 TO 0.7 MOLE PROPORTION OF A PHOSPHITE OF THE GENERAL FORMULA
Claim 2
Independent Claim
75 words
A METHOD OF MAKING A PHOSPHORUS-BOUND FUSIBLE ALKYD PRODUCT WHICH WHEN CROSS-LINKED WITH A COPOLYMERIZABLE ETHYLENIC COMPOUND CONTAINING THE CH2=C< GROUP PROVIDES A FLAME-RESISTANT INFUSIBLE COPOLYMER RESIN WHICH COMPRISES REACTING 1 MOLE PROPORTION OF AN UNSATURATED ALKYD SELECTED FROM THE CLASS CONSISTING OF GLYCOL POLYESTERS OF ALPHA-UNSATURATED DICARBOXYLIC ACIDS AND MIXTURES OF SUCH ACIDS WITH DICARBOXYLIC ACIDS FREE OF POLYMERIZABLE UNSATURATION, WITH FROM 0.2 TO 0.7 MOLE PROPORTION OF A PHOSPHITE OF THE GENERAL FORMULA
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) | 1961-02-17 | 1961-08-19 | 1962-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-17 | 1965-08-19 | 1966-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-17 | 1969-08-19 | 1970-02-18 | $7700.00 | Window Closed / Lapsed |