Patent US2961419A successfully refreshed from Google Patents.
US2961419A
Expired / Lapsed
US
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Paper coating process and compositions therefor
Assignee: Monsanto Chemicals Ltd
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Filing: 1956-11-07
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Granted: 1960-11-22
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Expires: 1976-11-07
Abstract
No abstract record available.
Inventors
- 👤 Oscar P Cohen
- 👤 John F Heaps
- 👤 Elmer H Rossin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:51
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/06; C11D3/062; D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/20; D21H19/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
AN AQUEOUS PAPER COATING COMPOSITION CONSISTING ESSENTIALLY OF AN AQUEOUS DISPERSION OF (1) 100 PARTS OF A STYRENE POLYMER, (2) 2-20 PARTS OF A PLASTICIZER FOR SAID STYRENE POLYMER, AND (3) 10-75 PARTS OF AN ORGANIC SOLVENT FOR SAID STYRENE POLYMER, SAID COMPOSITION CONTAINING AT LEAST 100 PARTS OF WATER, SAID STYRENE POLYMER BEING SELECTED FROM THE GROUP CONSISTING SO STYRENE HOMOPOLYMERS AND THEREMOPLASTIC INTERPOLYMERS OF MONOMERS CONSISTING SOLELY OF STYRENE AND VINYLIDENE MONOMERS INTERPOLYMERIZABLE WITH STYRENE, SAID INTERPOLYMERS CONTAINING AT LEAST 50 WEIGHT PERCENT OF COMBINED STYRENE, SAID SOLVENT FOR THE STURENE POLYMER HAVING A BOILING POINT IN THE RANGE OF 175-325*F. AND BEING SELECTED FROM GROUP CONSISTING OF AROMATIC HYDROCARBONS, CHLORINATED AROMATIC HYDROCARBONS, CHLORINATED ALIPHATIC HYDROCARBONS AND MIXTURES THEREOF.
Claim 2
Dependent Claim
121 words
AN AQUEOUS PAPER COATING COMPOSITION CONSISTING ESSENTIALLY OF AN AQUEOUS DISPERSION OF (1) 100 PARTS OF A STYRENE POLYMER, (2) 2-20 PARTS OF A PLASTICIZER FOR SAID STYRENE POLYMER, AND (3) 10-75 PARTS OF AN ORGANIC SOLVENT FOR SAID STYRENE POLYMER, SAID COMPOSITION CONTAINING AT LEAST 100 PARTS OF WATER, SAID STYRENE POLYMER BEING SELECTED FROM THE GROUP CONSISTING SO STYRENE HOMOPOLYMERS AND THEREMOPLASTIC INTERPOLYMERS OF MONOMERS CONSISTING SOLELY OF STYRENE AND VINYLIDENE MONOMERS INTERPOLYMERIZABLE WITH STYRENE, SAID INTERPOLYMERS CONTAINING AT LEAST 50 WEIGHT PERCENT OF COMBINED STYRENE, SAID SOLVENT FOR THE STURENE POLYMER HAVING A BOILING POINT IN THE RANGE OF 175-325*F. AND BEING SELECTED FROM GROUP CONSISTING OF AROMATIC HYDROCARBONS, CHLORINATED AROMATIC HYDROCARBONS, CHLORINATED ALIPHATIC HYDROCARBONS AND MIXTURES THEREOF.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |