Patent US3660531A successfully refreshed from Google Patents.
US3660531A
Expired / Lapsed
US
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Thermoplastic resin blend of polyphenylene oxide with butadiene-containing polymers
Assignee: Uniroyal Chemical Co Inc
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Filing: 1969-06-04
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Granted: 1972-05-02
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Expires: 1989-06-04
Abstract
Abstract BLENDS OF THERMOPLASTIC POLYPHENYLENE OXIDE RESIN (WHICH OPTIONALLY CONTAINS AN ALKENYL AROMATIC POLYMER SUCH AS A STYRENE POLYMER) WITH BUTADIENE HOMOPOLYMERS AND COPOLYMERS ARE CHARACTERIZED BY AN UNUSUALLY USEFUL COMBINATION OF PROPERTIES, PARTICULARLY LOW TEMPERATURE MELT PROCESSABILITY IN COMBINATION WITH HIGH IMPACT STRENGTH AND FLEXURAL STRENGTH.
Inventors
- 👤 Robert L Lauchlan
- 👤 Gray A Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:21
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |