US3341499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethanes cured with guanamines
Assignee: Olin Corp
•
Filing: 1963-10-11
•
Granted: 1967-09-12
•
Expires: 1983-10-11
Abstract
No abstract record available.
Inventors
- 👤 Donald W Kaiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:21
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/5046; C08G59/5053; C08G59/508; C08G59/5086; C08G18/00; C08G18/06; C08G18/08; C08G18/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A POLYURETHANE POLYMER PREPARED BY REACTING (1) AN ORGANIC POLYISOCYANATE, (2) A MATERIAL SELECTED FROM THE GROUP CONSISTING OF A POLYETHER POLYOL HAVING A NUMBER AVERAGE MOLECULAR WEIGHT BETWEEN ABOUT 400 AND 10,000 AND AS HYDROXYL-TERMINATED POLYESTER HAVING A MOLECULAR WEIGHT OF BETWEEN 500 AND 5000, AND (3) A GUANAMINE SELECTED FROM THE GROUP CONSISTING OF CAPROGUANAMINE, PELARGONOGUANAMINE, LAUROGUANAMINE, STEAROGUANAMINE, OLEOGUANAMINE AND 2 - ETHYLHEXANOQUANAMINE; THERE BEING ABOUT 0.75 TO 1.1 -NCO GROUPS FOR EACH -OH GROUP AND ABOUT 0.5 TO 1.1 -NCO GROUP FOR EACH -NH2 GROUP; WITH ABOUT 50 TO ABOUT 85 PERCENT BY WEIGHT OF THE SAID POLYURETHANE POLYMER BEING DERIVED FROM SAID MATERIAL (2) AND ABOUT 4 TO ABOUT 40 PERCENT BY WEIGHT OF SAID POLYURETHANE POLYMER BEING DERIVED FROM SAID GUANAMINE COMPOUND.
Claim 2
Dependent Claim
127 words
A POLYURETHANE POLYMER PREPARED BY REACTING (1) AN ORGANIC POLYISOCYANATE, (2) A MATERIAL SELECTED FROM THE GROUP CONSISTING OF A POLYETHER POLYOL HAVING A NUMBER AVERAGE MOLECULAR WEIGHT BETWEEN ABOUT 400 AND 10,000 AND AS HYDROXYL-TERMINATED POLYESTER HAVING A MOLECULAR WEIGHT OF BETWEEN 500 AND 5000, AND (3) A GUANAMINE SELECTED FROM THE GROUP CONSISTING OF CAPROGUANAMINE, PELARGONOGUANAMINE, LAUROGUANAMINE, STEAROGUANAMINE, OLEOGUANAMINE AND 2 - ETHYLHEXANOQUANAMINE; THERE BEING ABOUT 0.75 TO 1.1 -NCO GROUPS FOR EACH -OH GROUP AND ABOUT 0.5 TO 1.1 -NCO GROUP FOR EACH -NH2 GROUP; WITH ABOUT 50 TO ABOUT 85 PERCENT BY WEIGHT OF THE SAID POLYURETHANE POLYMER BEING DERIVED FROM SAID MATERIAL (2) AND ABOUT 4 TO ABOUT 40 PERCENT BY WEIGHT OF SAID POLYURETHANE POLYMER BEING DERIVED FROM SAID GUANAMINE COMPOUND.
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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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |