US3310604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethanes having dispersed therein high and low molecular weight polyolefins
Assignee: Bayer Corp
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Filing: 1964-05-04
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Granted: 1967-03-21
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Expires: 1984-05-04
Abstract
No abstract record available.
Inventors
- 👤 Steingiser Samuel
- 👤 Gert F Baumann
- 👤 Gable Clarence Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:39
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
105 words
AS A NEW COMPOSITION OF MATTER, A POLYURETHANE POLYMER HAVING DISPERSED SUBSTANTIALLY UNIFORMLY THEREIN, A HIGH MOLECULAR WEIGHT POLYOLEFIN AND A LOW MOLECULAR WEIGHT POLYOLEFIN SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE, POLYPROPYLENE AND MIXTURES THEREOF, SAID WEIGHT OF FROM ABOUT 100,000 TO 500,000 AND SAID LOW MOLECULAR WEIGHT POLYOLEFIN HAVING A MOLECULAR WEIGHT OF FROM ABOUT 1,000 TO 4,000 THE TOTAL QUANTITY OF SAID HIGH AND SAID LOW MOLECULAR WEIGHT POLYOLEFINS BEING FROM ABOUT 0.2 TO 5% OF THE POLYURETHANE, A MIXTURE OF SAID HIGH AND SAID LOW MOLECULAR WEIGHT POLYOLEFINS WITHIN THE SAID RATIO HAVING A MELT INDEX OF AT LEAST ABOUT 115.
Claim 2
Dependent Claim
105 words
AS A NEW COMPOSITION OF MATTER, A POLYURETHANE POLYMER HAVING DISPERSED SUBSTANTIALLY UNIFORMLY THEREIN, A HIGH MOLECULAR WEIGHT POLYOLEFIN AND A LOW MOLECULAR WEIGHT POLYOLEFIN SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE, POLYPROPYLENE AND MIXTURES THEREOF, SAID WEIGHT OF FROM ABOUT 100,000 TO 500,000 AND SAID LOW MOLECULAR WEIGHT POLYOLEFIN HAVING A MOLECULAR WEIGHT OF FROM ABOUT 1,000 TO 4,000 THE TOTAL QUANTITY OF SAID HIGH AND SAID LOW MOLECULAR WEIGHT POLYOLEFINS BEING FROM ABOUT 0.2 TO 5% OF THE POLYURETHANE, A MIXTURE OF SAID HIGH AND SAID LOW MOLECULAR WEIGHT POLYOLEFINS WITHIN THE SAID RATIO HAVING A MELT INDEX OF AT LEAST ABOUT 115.
References Cited (Backward Citations)
US3272890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |