Patent US3067150A successfully refreshed from Google Patents.
US3067150A
Expired / Lapsed
US
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Stabilization of polyurethane resin foams
Assignee: Nopco Chemical Co
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Filing: 1960-05-04
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Granted: 1962-12-04
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Expires: 1980-05-04
Abstract
No abstract record available.
Inventors
- 👤 Bernard A Dombrow
- 👤 Lerner Alvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:05
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0014; C08K; C08K5/00; C08K5/0008; C08K5/005; C08J2375/00; C08J2375/04; C08J2375/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A FLEXIBLE POLYETHER BASED FOAMED POLYURETHANE RESIN STABILIZED AGAINST DETERIORATION WHICH IS THE REACTION PRODUCT OF A POLYALKYLENE POLYETHER HAVING A HYDROXYLIC FUNCTIONALITY OF AT LEAST 2, AN ORGANIC POLYISOCYANATE, WATER, A SURFACE ACTIVE AGENT AND CATALYST MIXTURE INCLUDING AMINE AND AN ORGANO METALLIC TIN CATALYST PRESENT IN CATALYTIC AMOUNTS WHICH TENDS TO PROMOTE DECOMPOSITION OF THE ETHER LINKAGE OF SAID FOAMED RESIN, AND AS A STABILIZER THEREFOR, WHICH IS PRESENT IN STABILIZING AMOUNTS, AT LEAST ONE HALOGEN-CONTAINING MATERIAL OF THE GROUP CONSISTING OF (A) COMPOUNDS CONTAINING HALOGEN SUBSTITUTED ON TO AN ALLYLIC MOIETY AND (B) BENZOID COMPOUNDS CONTAINING HALOGEN ACTIVATED BY ELECTROPHILIC SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF NITRO AND NITRILE SUBSTITUENTS ATTACHED TO THE AROMATIC RING, SAID HALOGEN CONTAINING MATERIAL BEING SOLUBLE IN AT LEAST ONE OF SAID POLYETHER, POLYISOCYANATE AND WATER AND COMPATIBLE IN THE SYSTEM RESULTING FROM THE ADMIXTURE OF SAID POLYETHER, ISOCYANATE AND WATER.
Claim 2
Dependent Claim
150 words
A FLEXIBLE POLYETHER BASED FOAMED POLYURETHANE RESIN STABILIZED AGAINST DETERIORATION WHICH IS THE REACTION PRODUCT OF A POLYALKYLENE POLYETHER HAVING A HYDROXYLIC FUNCTIONALITY OF AT LEAST 2, AN ORGANIC POLYISOCYANATE, WATER, A SURFACE ACTIVE AGENT AND CATALYST MIXTURE INCLUDING AMINE AND AN ORGANO METALLIC TIN CATALYST PRESENT IN CATALYTIC AMOUNTS WHICH TENDS TO PROMOTE DECOMPOSITION OF THE ETHER LINKAGE OF SAID FOAMED RESIN, AND AS A STABILIZER THEREFOR, WHICH IS PRESENT IN STABILIZING AMOUNTS, AT LEAST ONE HALOGEN-CONTAINING MATERIAL OF THE GROUP CONSISTING OF (A) COMPOUNDS CONTAINING HALOGEN SUBSTITUTED ON TO AN ALLYLIC MOIETY AND (B) BENZOID COMPOUNDS CONTAINING HALOGEN ACTIVATED BY ELECTROPHILIC SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF NITRO AND NITRILE SUBSTITUENTS ATTACHED TO THE AROMATIC RING, SAID HALOGEN CONTAINING MATERIAL BEING SOLUBLE IN AT LEAST ONE OF SAID POLYETHER, POLYISOCYANATE AND WATER AND COMPATIBLE IN THE SYSTEM RESULTING FROM THE ADMIXTURE OF SAID POLYETHER, ISOCYANATE AND WATER.
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) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |