Patent US5151085A successfully refreshed from Google Patents.
Patent US3070573A successfully refreshed from Google Patents.
US3070573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of grafting olefins onto organosilicon compounds by the use of ozone
Assignee: Dow Silicones Corp
•
Filing: 1958-08-18
•
Granted: 1962-12-25
•
Expires: 1978-08-18
Abstract
No abstract record available.
Inventors
- 👤 Beck Henry Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:55
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/12; C08F283/124
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A METHOD OF GRAFTING ORGANIC VINYLIC COMPOUNDS ONTO ORGANOSILICON COMPOUNDS WHICH COMPRISES (1) CONTACTING AN ORGANOSILICON COMPOUND IN WHICH AT LEAST .001 MOL PERCENT OF THE SILICON ATOMS HAVE UNSATURATED NONAROMATIC HYDROCARBON RADICALS ATTACHED THERETO BY CARBON-SILICON LINKAGES, ANY REMAINING VALANCES OF THE SILICON ATOMS IN SAID ORGANOSILICON COMPOUND BEING SATISFIED BY SUBSTITUENTS OF THE GROUP CONSISTING OF SATURATED HYDROCARBON RADICALS, SATURATED HALOGENATED HYDROCARBON RADICALS, OXYGEN ATOMS OF AN SIOSI LINKAGE, HALOGEN ATOMS AND -OR GROUPS IN WHICH R IS OF THE GROUP CONHALOGENATED HYDROCARBON RADICALS, WITH OZONE AT A TEMPERATURE NOT GREATER THAN 30*C. AND (2) THEREAFTER CONTACTING THE TREATED ORGANOSILICON COMPOUND WITH AN OLEFINIC COMPOUND HAVING A TERMINAL GROUP OF THE FORMULA
Claim 2
Independent Claim
114 words
A METHOD OF GRAFTING ORGANIC VINYLIC COMPOUNDS ONTO ORGANOSILICON COMPOUNDS WHICH COMPRISES (1) CONTACTING AN ORGANOSILICON COMPOUND IN WHICH AT LEAST .001 MOL PERCENT OF THE SILICON ATOMS HAVE UNSATURATED NONAROMATIC HYDROCARBON RADICALS ATTACHED THERETO BY CARBON-SILICON LINKAGES, ANY REMAINING VALANCES OF THE SILICON ATOMS IN SAID ORGANOSILICON COMPOUND BEING SATISFIED BY SUBSTITUENTS OF THE GROUP CONSISTING OF SATURATED HYDROCARBON RADICALS, SATURATED HALOGENATED HYDROCARBON RADICALS, OXYGEN ATOMS OF AN SIOSI LINKAGE, HALOGEN ATOMS AND -OR GROUPS IN WHICH R IS OF THE GROUP CONHALOGENATED HYDROCARBON RADICALS, WITH OZONE AT A TEMPERATURE NOT GREATER THAN 30*C. AND (2) THEREAFTER CONTACTING THE TREATED ORGANOSILICON COMPOUND WITH AN OLEFINIC COMPOUND HAVING A TERMINAL GROUP OF THE FORMULA
References Cited (Backward Citations)
US2438612A
Cited
US2837496A
Cited
FR1101682A
Cited
US2803616A
Cited
BE562661A
Cited
FR1161824A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |