US3358052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethane composition containing 0.2 to 5% polyolefin or polystyrene
Assignee: Bayer Corp
•
Filing: 1964-05-04
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Granted: 1967-12-12
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Expires: 1984-05-04
Abstract
No abstract record available.
Inventors
- 👤 Jr William Archer
- 👤 Steingiser Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:19
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08L; C08L75/00; C08L75/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
AS A NEW COMPOSITION OF MATTER A POLYURETHANE POLYMER HAVING A SHORE HARDNESS OF BETWEEN ABOUT 75-A AND ABOUT 60-D IN WHICH IS SUBSTANTIALLY UNIFORMLY DISPERSED ABOUT 0.2% TO ABOUT 5% BY WEIGHT BASED ON THE TOTAL WEIGHT OF POLYURETHANE ELASTOMER OF A CHEMICALLY INERT LUBRICATING AGENT SELECTED FROM THE GROUP CONSISTING OF POLYOLEFINS DERIVED FROM OLEFINS HAVING 2 TO 4 CARBON ATOMS, POLYSTYRENE AND MIXTURE THEREOF, SAID LUBRICATING AGENT HAVING A MELT INDEX OF AT LEAST ABOUT 115.
Claim 2
Dependent Claim
79 words
AS A NEW COMPOSITION OF MATTER A POLYURETHANE POLYMER HAVING A SHORE HARDNESS OF BETWEEN ABOUT 75-A AND ABOUT 60-D IN WHICH IS SUBSTANTIALLY UNIFORMLY DISPERSED ABOUT 0.2% TO ABOUT 5% BY WEIGHT BASED ON THE TOTAL WEIGHT OF POLYURETHANE ELASTOMER OF A CHEMICALLY INERT LUBRICATING AGENT SELECTED FROM THE GROUP CONSISTING OF POLYOLEFINS DERIVED FROM OLEFINS HAVING 2 TO 4 CARBON ATOMS, POLYSTYRENE AND MIXTURE THEREOF, SAID LUBRICATING AGENT HAVING A MELT INDEX OF AT LEAST ABOUT 115.
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) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |