US3331812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized compositions
Assignee: Monsanto Co
•
Filing: 1963-09-23
•
Granted: 1967-07-18
•
Expires: 1983-09-23
Abstract
No abstract record available.
Inventors
- 👤 Lee Yoon Chai
- 👤 Speros P Nemphos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:02
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/16; C08K5/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A COMPOSITION WHICH COMPRISES A NON-ELASTOMERIC, RESINOUS UNSATURATED NITRILE POLYMER CONTAINING AT LEAST 10% BY WEIGHT OF A COMBINED UNSATURATED NITRILE OF THE GROUP CONSISTING OF ACRYLONITRILE, METHACRYLONITRILE, ETHACRYLONITRILE, PROPACRYLONITRILE, BUTACRYLONITRILE, AND MIXTURES THEREOF, SAID NITRILE POLYMER BEING SELECTED FROM THE CLASS CONSISTING OF HOMOPOLYMERS OF THE NITRILES OF SAID GROUP, INTERPOLYMERS OF THE NITRILES OF SAID GROUP WITH EACH OTHER AND INTERPOLYMERS OF THE NITRILES OF SAID GROUP WITH MONOVINYLIDENE AROMATIC HYDROCARBONS ALONE AND IN COMBINATION WITH UP TO 20 PERCENT BY WEIGHT OF MONOMERS OF THE GROUP CONSISTING OF ALKYL ACRYLATES, ALKYL, ALKACRYLATES, ACRYLAMIDES, DIALKYL MALEATES AND DIALKYL FUMARATES IN INTIMATE ADMIXTURE WITH ABOUT 0.01-5% BY WEIGHT OF AN ALKYLPHENOL AND ABOUT 0.05-0.5% BY WEIGHT OF A BETA-HYDROXYALKYLAMINE CORRESPONDING TO THE FORMULA:
Claim 2
Dependent Claim
124 words
A COMPOSITION WHICH COMPRISES A NON-ELASTOMERIC, RESINOUS UNSATURATED NITRILE POLYMER CONTAINING AT LEAST 10% BY WEIGHT OF A COMBINED UNSATURATED NITRILE OF THE GROUP CONSISTING OF ACRYLONITRILE, METHACRYLONITRILE, ETHACRYLONITRILE, PROPACRYLONITRILE, BUTACRYLONITRILE, AND MIXTURES THEREOF, SAID NITRILE POLYMER BEING SELECTED FROM THE CLASS CONSISTING OF HOMOPOLYMERS OF THE NITRILES OF SAID GROUP, INTERPOLYMERS OF THE NITRILES OF SAID GROUP WITH EACH OTHER AND INTERPOLYMERS OF THE NITRILES OF SAID GROUP WITH MONOVINYLIDENE AROMATIC HYDROCARBONS ALONE AND IN COMBINATION WITH UP TO 20 PERCENT BY WEIGHT OF MONOMERS OF THE GROUP CONSISTING OF ALKYL ACRYLATES, ALKYL, ALKACRYLATES, ACRYLAMIDES, DIALKYL MALEATES AND DIALKYL FUMARATES IN INTIMATE ADMIXTURE WITH ABOUT 0.01-5% BY WEIGHT OF AN ALKYLPHENOL AND ABOUT 0.05-0.5% BY WEIGHT OF A BETA-HYDROXYALKYLAMINE CORRESPONDING TO THE FORMULA:
References Cited (Backward Citations)
US739650A
Cited
US2654679A
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US2681328A
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US2829121A
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US2984648A
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US3092609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |