US3026288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graft copolymers comprised of mixtures of vinyl pyridine monomers and certain monomerc sulfonic acid compounds on certain nu-vinyl-2-oxazolidinone copolymer substrates, improved acrylonitrile polymer compositions obtainable therewith, and method of preparation
Assignee: Dow Chemical Co
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Filing: 1960-01-25
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Granted: 1962-03-20
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Expires: 1980-01-25
Abstract
No abstract record available.
Inventors
- 👤 Stanley A Murdock
- 👤 Teddy G Traylor
- 👤 Theodore B Lefferdink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:19
CPC Classifications
C; C08; C08F; C08F271/00; C08F271/02; C08L; C08L33/00; C08L33/18; C08L33/20; Y; Y10; Y10S; Y10S8/00; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
COMPOSITION COMPRISING BETWEEN ABOUT 80 AND ABOUT 99 PERCENT, BASED ON COMPOSITION WEIGHT, OF (A) A FIBER FORMING POLYMER OF AN ETHYLENICALLY UNSATURATED MONOMERIC MATERIAL CONTAINING AT LEAST ABOUT 80 WEIGHT PERCENT OF ACRYLONITRILE, AND (B) BETWEEN ABOUT 20 AND ABOUT 1 WEIGHT PERCENT, BASED ON COMPOSITION WEIGHT, OF A GRAFT COPOLYMER OF (A) FROM ABOUT 20 TO ABOUT 80 WEIGHT PERCENT, BASED ON GRAFT COPOLYMER WEIGHT, OF A MIXTURE OF MONOMERS CONSISTING OF (1) FROM ABOUT 10 TO ABOUT 90 MOLE PERCENT OF A VINYL PYRIDINE MONOMER OF THE FORMULA:
Claim 2
Dependent Claim
91 words
COMPOSITION COMPRISING BETWEEN ABOUT 80 AND ABOUT 99 PERCENT, BASED ON COMPOSITION WEIGHT, OF (A) A FIBER FORMING POLYMER OF AN ETHYLENICALLY UNSATURATED MONOMERIC MATERIAL CONTAINING AT LEAST ABOUT 80 WEIGHT PERCENT OF ACRYLONITRILE, AND (B) BETWEEN ABOUT 20 AND ABOUT 1 WEIGHT PERCENT, BASED ON COMPOSITION WEIGHT, OF A GRAFT COPOLYMER OF (A) FROM ABOUT 20 TO ABOUT 80 WEIGHT PERCENT, BASED ON GRAFT COPOLYMER WEIGHT, OF A MIXTURE OF MONOMERS CONSISTING OF (1) FROM ABOUT 10 TO ABOUT 90 MOLE PERCENT OF A VINYL PYRIDINE MONOMER OF THE FORMULA:
References Cited (Backward Citations)
US2614289A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-19 | 1965-09-18 | 1966-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-19 | 1969-09-18 | 1970-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-19 | 1973-09-18 | 1974-03-20 | $7700.00 | Window Closed / Lapsed |