Patent US3332896A successfully refreshed from Google Patents.
US3332896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil-modified polyurethanes
Assignee: Zeneca Inc
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Filing: 1963-12-23
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Granted: 1967-07-25
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Expires: 1983-12-23
Abstract
No abstract record available.
Inventors
- 👤 Joseph P Burns
- 👤 Frank T Sanderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:27
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/4891
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A POLYURETHANE COATING COMPOSITION CONPRISING THE REACTION PRODUCT OF A DIISOCYANATE SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC AND AROMATIC DIISOCYANATES AND THE ALCOHOLYSIS PRODUCT OF A DRYING OIL SELECTED FROM THE GROUP CONSISTING OF LINSEED OIL, SOYBEAN OIL, SAFFLOWER OIL, SESAME OIL, POPPY SEED OIL, SUNFLOWER OIL, PERILLA OIL, CORN OIL AND DEHYDRATED CASTOR OIL AND A POLYOXYALKYLENE ETHER OF A POLYHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF THE POLYOXYPROPYLENE ETHER OF SORBITOL HAVING FROM 6 TO 20 MOLS OF PROPYLENE OXIDE PER MOL OF ETHER AND POLYOXYPROPYLENE ETHER OF METHYL GLUCOSIDE HAVING FROM 4 TO 10 MOLS OF PROPYLENE OXIDE PER MOL OF ETHER WHEREIN THE PROPORTION OF POLYOXYALKYLENE ETHER TO DRYING OIL USED IN PRODUCING SAID ALCOHOLYSIS PRODUCT IS ABOUT (N/2)-1, WHERE N IS THE NUMBER OF HYDROXYL GROUPS PER MOLECULE OF POLYOXYALKYLENE ETHER, AND WHEREIN THE NUMERICAL RATIO OF ISOCYANATE GROUPS TO HYDROXYL GROUPS IN SAID REACTION PRODUCT IS WITHIN THE RANGE OF ABOUT 0.9 TO 1.0.
Claim 2
Dependent Claim
162 words
A POLYURETHANE COATING COMPOSITION CONPRISING THE REACTION PRODUCT OF A DIISOCYANATE SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC AND AROMATIC DIISOCYANATES AND THE ALCOHOLYSIS PRODUCT OF A DRYING OIL SELECTED FROM THE GROUP CONSISTING OF LINSEED OIL, SOYBEAN OIL, SAFFLOWER OIL, SESAME OIL, POPPY SEED OIL, SUNFLOWER OIL, PERILLA OIL, CORN OIL AND DEHYDRATED CASTOR OIL AND A POLYOXYALKYLENE ETHER OF A POLYHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF THE POLYOXYPROPYLENE ETHER OF SORBITOL HAVING FROM 6 TO 20 MOLS OF PROPYLENE OXIDE PER MOL OF ETHER AND POLYOXYPROPYLENE ETHER OF METHYL GLUCOSIDE HAVING FROM 4 TO 10 MOLS OF PROPYLENE OXIDE PER MOL OF ETHER WHEREIN THE PROPORTION OF POLYOXYALKYLENE ETHER TO DRYING OIL USED IN PRODUCING SAID ALCOHOLYSIS PRODUCT IS ABOUT (N/2)-1, WHERE N IS THE NUMBER OF HYDROXYL GROUPS PER MOLECULE OF POLYOXYALKYLENE ETHER, AND WHEREIN THE NUMERICAL RATIO OF ISOCYANATE GROUPS TO HYDROXYL GROUPS IN SAID REACTION PRODUCT IS WITHIN THE RANGE OF ABOUT 0.9 TO 1.0.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |