US3370050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of interpolymers of hydroxyl-containing monomers in an organic solvent using hydrogen plroxide as catalyst
Assignee: PPG Industries Inc
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Filing: 1964-06-10
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Granted: 1968-02-20
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Expires: 1984-06-10
Abstract
No abstract record available.
Inventors
- 👤 Jerome A Seiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:48
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/26; C08F220/28; C08F220/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
IN THE INTERPOLYMERIZATION METHOD WHICH COMPRISES INTERPOLYMERIZAING AN ORGANIC SOLVENT SOLUTION OF A MIXTURE OF MONOMERS CONSISITNG ESSENTIALLY OF: (A) AT LEAST ABOUT TWO PERCENT BY WEIGHT OF A HYDROXYALKYL ESTER OF AN ETHYLENICALLY UNSATURATED CARBOXYLIC ACID, SAID ESTER CONTAINING UP TO ABOUT 12 CARBON ATOMS IN THE HYDROXYALKYL GROUP AND SAID ACID CONTAINING UP TO ABOUT 6 CARBON AOMS, AND (B) AT LEAST ONE OTHER ETHYLEICALLY UNSATURATED MONOMER, COPOLYMERIZABLE WITH SAID ESTER AND SELECTED FROM THE GROUP CONSISTING OF MONOOLEFINIC AND DIOLEFINIC HYDROCARBONS, HALOGENATED MONOOLEFINIC AND DIOLEFINIC HYDROCARBONS, UNSATURATED ACIDS, UNSATURATED NITRILES, AND UNSATURATED ACIDS, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT THE INTERPOLYMERIZATION REACTION AT A TEMPERATURE BETWEEN ABOUT 135*F. AND ABOUT 350*F. IN THE PRESENCE OF AQUEOUS HYDROGEN PEROXIDE CONTAINING AT LEST ABOUT 0.05 PERCENT BY WEIGHT, BASED UPON THE TOTAL MONOMERS, OF HYROGREN PEROXIDE.
Claim 2
Dependent Claim
137 words
IN THE INTERPOLYMERIZATION METHOD WHICH COMPRISES INTERPOLYMERIZAING AN ORGANIC SOLVENT SOLUTION OF A MIXTURE OF MONOMERS CONSISITNG ESSENTIALLY OF: (A) AT LEAST ABOUT TWO PERCENT BY WEIGHT OF A HYDROXYALKYL ESTER OF AN ETHYLENICALLY UNSATURATED CARBOXYLIC ACID, SAID ESTER CONTAINING UP TO ABOUT 12 CARBON ATOMS IN THE HYDROXYALKYL GROUP AND SAID ACID CONTAINING UP TO ABOUT 6 CARBON AOMS, AND (B) AT LEAST ONE OTHER ETHYLEICALLY UNSATURATED MONOMER, COPOLYMERIZABLE WITH SAID ESTER AND SELECTED FROM THE GROUP CONSISTING OF MONOOLEFINIC AND DIOLEFINIC HYDROCARBONS, HALOGENATED MONOOLEFINIC AND DIOLEFINIC HYDROCARBONS, UNSATURATED ACIDS, UNSATURATED NITRILES, AND UNSATURATED ACIDS, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT THE INTERPOLYMERIZATION REACTION AT A TEMPERATURE BETWEEN ABOUT 135*F. AND ABOUT 350*F. IN THE PRESENCE OF AQUEOUS HYDROGEN PEROXIDE CONTAINING AT LEST ABOUT 0.05 PERCENT BY WEIGHT, BASED UPON THE TOTAL MONOMERS, OF HYROGREN PEROXIDE.
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) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |