US3284400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing improved oil-extended polyepoxide compositions and resulting products
Assignee: Shell USA Inc
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Filing: 1963-04-05
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Granted: 1966-11-08
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Expires: 1983-04-05
Abstract
No abstract record available.
Inventors
- 👤 Richard C Nelson
- 👤 Hans E Kubitschek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:24
CPC Classifications
C; C08; C08L; C08L63/00; C08K; C08K5/00; C08K5/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A PROCESS FOR PREPARING OIL-EXTENDED POLYEPOXIDE COMPOSITIONS HAVING IMPROVED STRENGHT ON CURE WHICH COMPRISES ADDING TO A MIXTURE OF A GLYCIDYL POLYETHER OF A POLYHYDRIC PHENOL AND A COMPATIBLE HIGHLY AROMATIC PETROLEUM OIL HAVING AN AROMATIC CONTENT OF AT LEAST 60%, ANOTHER OIL WHICH HAS AN AROMATIC CONTENT OF LESS THAN ABOUT 30%, AN AROMATIC CARBON ATOM ANALYSIS (CA) BETWEEN 1 AND 30, A NAPHTHENIC CARBON ATOM ANALYSIS (CN) BETWEEN 25 AND 50 AND PARAFFINIC CARBON ATOM ANALYSIS (CP) BETWEEN 30 AND 80 AND POOR SOLVENT POWER IN SUFFICIENT QUANTITY SO AS TO FORM A TWO-PHASE CURED SYSTEM, THE AMOUNT OF THE GLYCIDYL POLYETHER MAKING UP FROM 15% TO 85% BY WEIGHT OF THE COMBINED MIXTURE OF GLYCIDYL POLYETHER AND THE TWO OILS, AND THE OIL OF LOW AROMATIC CONTENT MAKING UP FROM 3% TO 40% BY WEIGHT OF THE COMBINED WEIGHT OF THE TWO OILS.
Claim 2
Dependent Claim
146 words
A PROCESS FOR PREPARING OIL-EXTENDED POLYEPOXIDE COMPOSITIONS HAVING IMPROVED STRENGHT ON CURE WHICH COMPRISES ADDING TO A MIXTURE OF A GLYCIDYL POLYETHER OF A POLYHYDRIC PHENOL AND A COMPATIBLE HIGHLY AROMATIC PETROLEUM OIL HAVING AN AROMATIC CONTENT OF AT LEAST 60%, ANOTHER OIL WHICH HAS AN AROMATIC CONTENT OF LESS THAN ABOUT 30%, AN AROMATIC CARBON ATOM ANALYSIS (CA) BETWEEN 1 AND 30, A NAPHTHENIC CARBON ATOM ANALYSIS (CN) BETWEEN 25 AND 50 AND PARAFFINIC CARBON ATOM ANALYSIS (CP) BETWEEN 30 AND 80 AND POOR SOLVENT POWER IN SUFFICIENT QUANTITY SO AS TO FORM A TWO-PHASE CURED SYSTEM, THE AMOUNT OF THE GLYCIDYL POLYETHER MAKING UP FROM 15% TO 85% BY WEIGHT OF THE COMBINED MIXTURE OF GLYCIDYL POLYETHER AND THE TWO OILS, AND THE OIL OF LOW AROMATIC CONTENT MAKING UP FROM 3% TO 40% BY WEIGHT OF THE COMBINED WEIGHT OF THE TWO OILS.
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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |