US2916464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of polyurethane foams using molybdenum compounds as catalysts
Assignee: Bayer Corp
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Filing: 1957-05-23
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Granted: 1959-12-08
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Expires: 1977-05-23
Abstract
No abstract record available.
Inventors
- 👤 Ebneth Harold
- 👤 Schultheis Heinz
- 👤 Nordt Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:26
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/16; C08G18/22; C08G18/222
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN THE PREPARATION OF A CELLULAR POLYURETHANE BY A PROCESS WHICH COMPRISES REACTING AN ORGANIC POLYISOCYANATE, WATER AND AN ORGANIC COMPOUND HAVING HYDROGEN ATOMS REACTIVE WITH AN -NCO GROUP SELECTED FROM THE GROUP CONSISTING OF A POLYESTER PREPARED BY ESTERIFICATION OF A POLYCARBOXYLIC ACID AND A POLYHYDRIC ALCOHOL, A POLYALKYLENE ETHER GLYCOL AND A POLYTHIOETHER GLYCOL, SAID GROUP MEMBERS HAVING A MOLECULAR WEIGHT OF ABOVE ABOUT 1,000, THE IMPROVEMEMT WHICH COMPRISES EFFEFTING THE SAID REACTION WHILE THE SAID REACTANTS ARE IN ADMIXTURE WITH A CATALYTIC AMOUNT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF AMMONIUM MOLYDDATE, AMMONIUM PARAMOLYBDATE, MOLYBDENUM BIS-ACETYL ACETONATE, A MOLYBDENUM GLYCOLATE, AND AN ALKALI METAL SALT OF MOLYBDIC ACID, AND A TERTIARY AMINE.
Claim 2
Dependent Claim
117 words
IN THE PREPARATION OF A CELLULAR POLYURETHANE BY A PROCESS WHICH COMPRISES REACTING AN ORGANIC POLYISOCYANATE, WATER AND AN ORGANIC COMPOUND HAVING HYDROGEN ATOMS REACTIVE WITH AN -NCO GROUP SELECTED FROM THE GROUP CONSISTING OF A POLYESTER PREPARED BY ESTERIFICATION OF A POLYCARBOXYLIC ACID AND A POLYHYDRIC ALCOHOL, A POLYALKYLENE ETHER GLYCOL AND A POLYTHIOETHER GLYCOL, SAID GROUP MEMBERS HAVING A MOLECULAR WEIGHT OF ABOVE ABOUT 1,000, THE IMPROVEMEMT WHICH COMPRISES EFFEFTING THE SAID REACTION WHILE THE SAID REACTANTS ARE IN ADMIXTURE WITH A CATALYTIC AMOUNT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF AMMONIUM MOLYDDATE, AMMONIUM PARAMOLYBDATE, MOLYBDENUM BIS-ACETYL ACETONATE, A MOLYBDENUM GLYCOLATE, AND AN ALKALI METAL SALT OF MOLYBDIC ACID, AND A TERTIARY AMINE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |