US2996469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graft copolymer of vinyl chloride polymer composition, latex thereof, method of making, and article coated therewith
Assignee: Occidental Chemical Corp
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Filing: 1958-05-14
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Granted: 1961-08-15
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Expires: 1978-05-14
Abstract
No abstract record available.
Inventors
- 👤 Albert J Cole
- 👤 Floyd L Edris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:13
CPC Classifications
C; C08; C08F; C08F259/00; C08F259/02; C08F259/04; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A GRAFT COPOLYMER OF (I) A POLYMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF VINYL CHLORIDE AND COPOLYMERS THEREOF WITH UP TO 20% OF OTHER ETHYLENICALLY UNSATURATED COMPOUNDS COPOLYMERIZABLE THEREWITH, AND (II) A MIXTURE OF (A) A DIENE SELECTED FROM THE GROUP CONSISTING OF BUTADIENE, ISOPRENE, 2,3-DIMETHYL BUTADIENE AND PIPERYLENE, AND (B) A NITRILE SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE, METHACRYLONITRILE AND ALPHA-ETHYL ACRYLONITRILE, THE WEIGHT RATIO OF (I) THE POLYMERIC MATERIAL TO (II) THE MIXTURE BEING FROM 65/35 TO 80/20, AND THE WEIGHT RATIO OF THE DIENE TO THE NITRILE IN SAID MIXTURE (II) BEING FROM 65/35 TO 80/20.
Claim 2
Dependent Claim
103 words
A GRAFT COPOLYMER OF (I) A POLYMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF VINYL CHLORIDE AND COPOLYMERS THEREOF WITH UP TO 20% OF OTHER ETHYLENICALLY UNSATURATED COMPOUNDS COPOLYMERIZABLE THEREWITH, AND (II) A MIXTURE OF (A) A DIENE SELECTED FROM THE GROUP CONSISTING OF BUTADIENE, ISOPRENE, 2,3-DIMETHYL BUTADIENE AND PIPERYLENE, AND (B) A NITRILE SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE, METHACRYLONITRILE AND ALPHA-ETHYL ACRYLONITRILE, THE WEIGHT RATIO OF (I) THE POLYMERIC MATERIAL TO (II) THE MIXTURE BEING FROM 65/35 TO 80/20, AND THE WEIGHT RATIO OF THE DIENE TO THE NITRILE IN SAID MIXTURE (II) BEING FROM 65/35 TO 80/20.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |