US2834749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High impact styrene polymer prepared from styrene monomer containing chlorosulfonated polyethylene and process of making same
Assignee: Monsanto Chemicals Ltd
•
Filing: 1952-12-26
•
Granted: 1958-05-13
•
Expires: 1972-12-26
Abstract
No abstract record available.
Inventors
- 👤 Ival O Salyer
- 👤 James A Herbig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:49
CPC Classifications
C; C08; C08F; C08F255/00; C08F255/02; C08F255/023
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
54 words
STYRENE POLYMER CONTAINING FROM 1 TO 30 WEIGHT PERCENT (BASED ON TOTAL PRODUCT) PREFORMED CHLOROSULFONATED ETHYLENE POLYMER WHICH WAS PRESENT IN THE MONOMERIC STYRENE FROM WHICH SAID STYRENE POLYMER WAS DERIVED BY POLYMERIZATION TO A HIGH MOLECULAR WEIGHT RESIN, SAID ETHYLENE POLYMER HAVING HAD A MOLECULAR WEIGHT OF AT LEAST 6,000 PRIOR TO CHLOROSOULFONATION.
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) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |