Patent US3243407A successfully refreshed from Google Patents.
US3243407A
Expired / Lapsed
US
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Stabilized compositions
Assignee: Monsanto Co
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Filing: 1963-03-14
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Granted: 1966-03-29
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Expires: 1983-03-14
Abstract
No abstract record available.
Inventors
- 👤 Lee Yoon Chai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:01
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/42; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A COMPOSITION WHICH COMPRISES AN UNSATURATED NITRILE POLYMER SELECTED FROM THE GROUP CONSISTING OF (A) HOMOPOLYMERS AND INTERPOLYMERS OF COMBINED UNDATURATED NITRILES SELECTED FROM THNE GROUP CONSISTING OF ACRYLONITRILE, METHACRYLONITRILE, ETHACRYLONITRILE, PROPACRYLONITRILE BUTACRYLONITRILE AND (B) INTERPOLYMERS CONTAINING AT LEAST 10% BY WEIGHT OF A COMBINED UNSATURATED NITRILE OF THE GROUP CONSISTING OF ACRYLONITRILE, METHACRYLONITRILE ETHACRYLONITRILE, PROPACRYLONITRILE, BUTACRYLONITRILE, AND MIXTURES THEREOF AND UP TO 90.0% BY WEIGHT OF A COPOLYMERIZABLE MONOMER SELECTED FROM THE GROUP CONSISTING OF MONOVINYLIDENE AROMATIC HYDROCARBONS, ALKYL(ALK)ACRYLATES, ACRYLAMIDE, DIALKYL MALEATES, DIALKYL FURMARATES AND MIXTURES THEREOF, IN INTIMATE ADMISTURE WITH AT LEAST ABOUT 0.05%, BASED ON THE WEIGHT OF THE POLYMER, OF A STABILIZER CORRESPONDING TO THE FORMULA:
Claim 2
Dependent Claim
110 words
A COMPOSITION WHICH COMPRISES AN UNSATURATED NITRILE POLYMER SELECTED FROM THE GROUP CONSISTING OF (A) HOMOPOLYMERS AND INTERPOLYMERS OF COMBINED UNDATURATED NITRILES SELECTED FROM THNE GROUP CONSISTING OF ACRYLONITRILE, METHACRYLONITRILE, ETHACRYLONITRILE, PROPACRYLONITRILE BUTACRYLONITRILE AND (B) INTERPOLYMERS CONTAINING AT LEAST 10% BY WEIGHT OF A COMBINED UNSATURATED NITRILE OF THE GROUP CONSISTING OF ACRYLONITRILE, METHACRYLONITRILE ETHACRYLONITRILE, PROPACRYLONITRILE, BUTACRYLONITRILE, AND MIXTURES THEREOF AND UP TO 90.0% BY WEIGHT OF A COPOLYMERIZABLE MONOMER SELECTED FROM THE GROUP CONSISTING OF MONOVINYLIDENE AROMATIC HYDROCARBONS, ALKYL(ALK)ACRYLATES, ACRYLAMIDE, DIALKYL MALEATES, DIALKYL FURMARATES AND MIXTURES THEREOF, IN INTIMATE ADMISTURE WITH AT LEAST ABOUT 0.05%, BASED ON THE WEIGHT OF THE POLYMER, OF A STABILIZER CORRESPONDING TO THE FORMULA:
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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |