US3328339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced plastics containing base treated, calcined particulate fillers and organosilane coupling agents
Assignee: Monsanto Co
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Filing: 1963-08-28
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Granted: 1967-06-27
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Expires: 1983-08-28
Abstract
No abstract record available.
Inventors
- 👤 Paul A Tierney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:29
CPC Classifications
C; C08; C08K; C08K9/00; C08K9/02; C08K9/04; C08K9/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A REINFORCED POLYMERIC COMPOSITION COMPRISING A POLYMER, FROM ABOUT 5 TO 95% BY WEIGHT OF A SILICEOUS REINFORCING AGENT, AND FROM ABOUT 0.1 TO ABOUT 2 PARTS BY WEIGHT PER HUNDRED PARTS OF SAID REINFORCING AGENT OF AN ORGANOSILANE COUPLING AGENT HAVING AT LEAST ONE FUNCTIONAL GROUP CAPABLE OF REACTION WITH THE MONOMER DURING POLYMERIZATION AND AT LEAST ONE FUNCTIONAL GROUP CAPABLE OF REACTION WITH SAID REINFORCING AGENT, SAID REINFORCING AGENT BEING CHEMICALLY BOUND TO THE POLYMER BY SAID COUPLING AGENT, WHEREIN SAID REINFORCING AGENT, PRIOR TO REACTION WITH SAID COUPLING AGENT, IS PRETREATED WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BASIC INORGANIC SALTS, OXIDES, AND HYDROXIDES AND SUBSEQUENTLY HEATED TO AT LEAST 500*C.
Claim 2
Dependent Claim
116 words
A REINFORCED POLYMERIC COMPOSITION COMPRISING A POLYMER, FROM ABOUT 5 TO 95% BY WEIGHT OF A SILICEOUS REINFORCING AGENT, AND FROM ABOUT 0.1 TO ABOUT 2 PARTS BY WEIGHT PER HUNDRED PARTS OF SAID REINFORCING AGENT OF AN ORGANOSILANE COUPLING AGENT HAVING AT LEAST ONE FUNCTIONAL GROUP CAPABLE OF REACTION WITH THE MONOMER DURING POLYMERIZATION AND AT LEAST ONE FUNCTIONAL GROUP CAPABLE OF REACTION WITH SAID REINFORCING AGENT, SAID REINFORCING AGENT BEING CHEMICALLY BOUND TO THE POLYMER BY SAID COUPLING AGENT, WHEREIN SAID REINFORCING AGENT, PRIOR TO REACTION WITH SAID COUPLING AGENT, IS PRETREATED WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BASIC INORGANIC SALTS, OXIDES, AND HYDROXIDES AND SUBSEQUENTLY HEATED TO AT LEAST 500*C.
References Cited (Backward Citations)
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Cited
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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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |