US3065252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic preparation of chlorosiloxanes
Assignee: Dow Silicones Corp
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Filing: 1960-12-06
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Granted: 1962-11-20
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Expires: 1980-12-06
Abstract
No abstract record available.
Inventors
- 👤 Paul L Brown
- 👤 Hyde James Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:12
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/0872; C07F7/0874; C07F7/0896; C07F7/12; C07F7/121; C07F7/123; C07F7/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
331 words
THE METHOD WHICH COMPRISES INTERACTING (A) A SILICON COMPOUND CONTAINING PER MOLECULE AT LEAST ONE SILICON ATOM HAVING ATTACHED THERETO AT LEAST ONE HALOGEN ATOM, AND NO MORE THAN TWO ORGANIC RADICALS SELECTED FROM THE GROUP CONSISTING OF MONOVALENT HYDROCARBON RADICALS, HALOGENOAROMATIC MONOVALENT HYDROCARBON RADICALS AND FLUORINATED ALIPHATIC MONOVALENT HYDROCARBON RADICALS, ANY REMAINING VALENCES OF SAID SILICON ATOM BEING SATISFIED BY SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF SILICON-BONDED OXYGEN ATOMS AND HYDROGEN ATOMS, ANY OTHER SILICON ATOMS IN SAID COMPOUND HAVING THEIR VALENCES SATISFIED BY SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF SILICON-BONDED OXYGEN ATOMS, HYDROGEN ATOMS MONOVALENT HYDROCARBON RADICALS, HALOGENOAROMATIC MONOVALENT HYDROCARBON RADICALS AND FLUORINATED ALIPHATIC MONOVALENT HYDROCARBON RADICALS, WITH (B) AN ORGANOSILANE CONTAINING PER SILICON ATOM AN AVERAGE OF FROM TWO TO THREE MONOVALENT SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN ATOMS, HYDROCARBON RADICALS, HALOGENOAROMATIC HYDROCARBON RADICALS AND FLUORINATED ALIPHATIC HYDROCARBON RADICALS, ANY SILOXANE (B) WHICH HAS TWO OF SAID MONOVALENT SUBSTITUENTS ATTACHED TO EACH SILICON ATOM CONTAINING AT LEAST FOUR SUCH SILICON ATOMS, ANY REMAINING SILICON VALENCES BEING SATISFIED BY SILICON-BONDED OXYGENN ATOMS, IN CONTACT WITH (C) A CATALYST SELECTED FROM THE GROUP CONSISTING OF AMINOALKYL-SUBSTITUTED ORGANOSILOCON COMPOUNDS, SALTS, OF MONOCARBOXYLIC ACIDS AND SAID AMINOALKYL-SUBSTITUTED ORGANOSILICON COMPOUNDS SALTS OF HYDROGEN HALIDES AND SAID AMINOALKYL-SUBSTITUTED ORGANOSILICON COMPOUNDS, ALIPHATIC HYDROCARBON AMINES CONTAINING PER MOLECULE AT LEAST 10 CARBON ATOMS SALTS, OF HYDROGEN HALIDES AND SAID ALIPHATIC HYDROCARBON AMINES, SALTS OF MONOCARBOXYLIC ACIDS AND ALIPHATIC HYDROCARBON AMINES, SAID SALTS CONTAINING AT LEAST 10 CARBON ATOMS PER MOLECULE, SALTS OF MONOCARBOXYLIC ACIDS AND HYDROCARBON-SUBSTITUTED QUATERNARY AMMONIUM HYDROXIDES, SAID SALTS CONTAINING AT LEAST 10 CARBON ATOMS PER MOLECULE, AND SALTS OF HYDROGEN HALIDES AND HYDROCARBON-SUBSTITUTED QUATERNARY AMMONIUM HYDROXIDES, SAID SALTS CONTAINING AT LEAST 18 CARBON ATOMS PER MOLECULE, WHEREBY A HALOGEN ATOM FROM A MOLECULE OF A REPLACES AN OXYGEN ATOM ATTACHED TO A SILICON ATOM IN A MOLECULE OF B ANDTHE REMAINDER OF SAID A MOLECULE ATTACHES TO THE FREE OXYGEN BOND IN THE REMAINDER OF THE ORIGINAL B MOLECULE.
Claim 2
Independent Claim
331 words
THE METHOD WHICH COMPRISES INTERACTING (A) A SILICON COMPOUND CONTAINING PER MOLECULE AT LEAST ONE SILICON ATOM HAVING ATTACHED THERETO AT LEAST ONE HALOGEN ATOM, AND NO MORE THAN TWO ORGANIC RADICALS SELECTED FROM THE GROUP CONSISTING OF MONOVALENT HYDROCARBON RADICALS, HALOGENOAROMATIC MONOVALENT HYDROCARBON RADICALS AND FLUORINATED ALIPHATIC MONOVALENT HYDROCARBON RADICALS, ANY REMAINING VALENCES OF SAID SILICON ATOM BEING SATISFIED BY SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF SILICON-BONDED OXYGEN ATOMS AND HYDROGEN ATOMS, ANY OTHER SILICON ATOMS IN SAID COMPOUND HAVING THEIR VALENCES SATISFIED BY SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF SILICON-BONDED OXYGEN ATOMS, HYDROGEN ATOMS MONOVALENT HYDROCARBON RADICALS, HALOGENOAROMATIC MONOVALENT HYDROCARBON RADICALS AND FLUORINATED ALIPHATIC MONOVALENT HYDROCARBON RADICALS, WITH (B) AN ORGANOSILANE CONTAINING PER SILICON ATOM AN AVERAGE OF FROM TWO TO THREE MONOVALENT SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN ATOMS, HYDROCARBON RADICALS, HALOGENOAROMATIC HYDROCARBON RADICALS AND FLUORINATED ALIPHATIC HYDROCARBON RADICALS, ANY SILOXANE (B) WHICH HAS TWO OF SAID MONOVALENT SUBSTITUENTS ATTACHED TO EACH SILICON ATOM CONTAINING AT LEAST FOUR SUCH SILICON ATOMS, ANY REMAINING SILICON VALENCES BEING SATISFIED BY SILICON-BONDED OXYGENN ATOMS, IN CONTACT WITH (C) A CATALYST SELECTED FROM THE GROUP CONSISTING OF AMINOALKYL-SUBSTITUTED ORGANOSILOCON COMPOUNDS, SALTS, OF MONOCARBOXYLIC ACIDS AND SAID AMINOALKYL-SUBSTITUTED ORGANOSILICON COMPOUNDS SALTS OF HYDROGEN HALIDES AND SAID AMINOALKYL-SUBSTITUTED ORGANOSILICON COMPOUNDS, ALIPHATIC HYDROCARBON AMINES CONTAINING PER MOLECULE AT LEAST 10 CARBON ATOMS SALTS, OF HYDROGEN HALIDES AND SAID ALIPHATIC HYDROCARBON AMINES, SALTS OF MONOCARBOXYLIC ACIDS AND ALIPHATIC HYDROCARBON AMINES, SAID SALTS CONTAINING AT LEAST 10 CARBON ATOMS PER MOLECULE, SALTS OF MONOCARBOXYLIC ACIDS AND HYDROCARBON-SUBSTITUTED QUATERNARY AMMONIUM HYDROXIDES, SAID SALTS CONTAINING AT LEAST 10 CARBON ATOMS PER MOLECULE, AND SALTS OF HYDROGEN HALIDES AND HYDROCARBON-SUBSTITUTED QUATERNARY AMMONIUM HYDROXIDES, SAID SALTS CONTAINING AT LEAST 18 CARBON ATOMS PER MOLECULE, WHEREBY A HALOGEN ATOM FROM A MOLECULE OF A REPLACES AN OXYGEN ATOM ATTACHED TO A SILICON ATOM IN A MOLECULE OF B ANDTHE REMAINDER OF SAID A MOLECULE ATTACHES TO THE FREE OXYGEN BOND IN THE REMAINDER OF THE ORIGINAL B MOLECULE.
References Cited (Backward Citations)
US2421653A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |