Patent US3135713A successfully refreshed from Google Patents.
US3135713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of organopolysiloxane resins using certain ammonium compounds
Assignee: General Electric Co
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Filing: 1960-02-26
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Granted: 1964-06-02
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Expires: 1980-02-26
Abstract
No abstract record available.
Inventors
- 👤 Stuart D Brewer
- 👤 Sieno Robert P De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:07
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/06; C08G77/08; C08G77/14; C08G77/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A PROCESS COMPRISING THE STEPS OF (1) AGITATING A MIXTURE COMPRISING A HALOSILANE, WATER, AND AMMONIUM SALT OF AN ACID SELECTED FROM THE CLASS CONSISTING OF CARBONIC, FORMIC, ACETIC, OXALIC, MALONIC, LACTIC, PYRUVIC, AND ASCORBIC, AND (2) RECOVERING THE ORGANOPOLYSILOXANE PRODUCT FROM (1), WHERE SAID HALOSILANE OF (1) IS A MEMBER SELECTED FROM THE CLASS CONSISTING OF ORGANOTRIHALOSILANE, A MIXTURE OF ORGANOTRIHALOSILANE, AND DIORGANODIHALOSILANE, A MIXTURE OF ORGANOTRIHALOSILANE, DIORGANODIHALOSILANE, TETRAHALOSILANE AND TRIORGANOHALOSILANE, A MIXTURE OF ORGANOTRIHALOSILANE, DIORGANODIHALOSILANE AND TRIORGANOHALOSIANE, AND A MIXTURE OF TRIORGANOHALOSILANE, DIORGANODIHALOSILANE, AND TETRAHALOSILANE, AND WHERE SAID HALOSILANE OF (1) IS UTILIZED IN SUCH PROPORTIONS TO PROVIDE FOR AN AVERAGE RATIO IN SAID ORGANOPOLYSILOXANE PRODUCT OF (2) OF FROM 1 TO 1.8 ORGANO RADICALS PER SILICON ATOM ATTACHED TO SILICON BY CARBON-SILICON LINKAGES AND SELECTED FROM THE CLASS CONSISTING OF MONOVALENT HYDROCARBON RADICALS, HALOGENATED MONOVALENT HYDROCARBON RADICALS AND CYANOALKYL RADICALS.
Claim 2
Dependent Claim
143 words
A PROCESS COMPRISING THE STEPS OF (1) AGITATING A MIXTURE COMPRISING A HALOSILANE, WATER, AND AMMONIUM SALT OF AN ACID SELECTED FROM THE CLASS CONSISTING OF CARBONIC, FORMIC, ACETIC, OXALIC, MALONIC, LACTIC, PYRUVIC, AND ASCORBIC, AND (2) RECOVERING THE ORGANOPOLYSILOXANE PRODUCT FROM (1), WHERE SAID HALOSILANE OF (1) IS A MEMBER SELECTED FROM THE CLASS CONSISTING OF ORGANOTRIHALOSILANE, A MIXTURE OF ORGANOTRIHALOSILANE, AND DIORGANODIHALOSILANE, A MIXTURE OF ORGANOTRIHALOSILANE, DIORGANODIHALOSILANE, TETRAHALOSILANE AND TRIORGANOHALOSILANE, A MIXTURE OF ORGANOTRIHALOSILANE, DIORGANODIHALOSILANE AND TRIORGANOHALOSIANE, AND A MIXTURE OF TRIORGANOHALOSILANE, DIORGANODIHALOSILANE, AND TETRAHALOSILANE, AND WHERE SAID HALOSILANE OF (1) IS UTILIZED IN SUCH PROPORTIONS TO PROVIDE FOR AN AVERAGE RATIO IN SAID ORGANOPOLYSILOXANE PRODUCT OF (2) OF FROM 1 TO 1.8 ORGANO RADICALS PER SILICON ATOM ATTACHED TO SILICON BY CARBON-SILICON LINKAGES AND SELECTED FROM THE CLASS CONSISTING OF MONOVALENT HYDROCARBON RADICALS, HALOGENATED MONOVALENT HYDROCARBON RADICALS AND CYANOALKYL RADICALS.
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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |