US3592878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions comprising a high cis graft copolymer and a high trans graft copolymer
Assignee: Sterling Moulding Materials Ltd
•
Filing: 1967-06-23
•
Granted: 1971-07-13
•
Expires: 1987-06-23
Abstract
Abstract HOMOGENEOUS MIXTURES OF A HIGH CIS POLYBUTADIENE GRAFT POLYMER WITH A VINYL AROMATIC COMPOUND, A POLYMER OR COPOLYMER OF A VINYL AROMATIC COMPOUND, AND A HIGH TRANS DIENE HYDROCARBON GRAFT POLYMER WITH A VINYL AROMATIC COMPOUND ARE PROVIDED, WHICH PROVIDE AN UNEXPECTED COMBINATION OF HIGH IMPACT STRENGTH, HIGH TENSILE STRENGTH AND HIGH SOFTENING POINT TOGETHER WITH GOOD SURFACE GLOSS OF MOULDINGS; THE VINYL AROMATIC COMPOUND IS PREFERABLY STYRENE OR MIXTURES WITH A-METHYL STYRENE.
Inventors
- 👤 Zygmunt Kromolicki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:36
CPC Classifications
C; C08; C08F; C08F279/00; C08F279/02; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/06; C08L51/00; C08L51/04; C08L2205/00; C08L2205/02; Y; Y10; Y10S; Y10S525/00; Y10S525/914
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |