Polyalkoxysilanes
Abstract
Abstract POLYALKOXYSILANES HAVING REPEATING STRUCTURAL UNITS WHICH MAY BE REPRESENTED BY THE FORMULA: -CH2-(1,4-CYCLOHEXYLENE)-CH2-O-SI(-R)(-A)-O- WHERE R AND A ARE EACH SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, MONOVALENT HYDROCARBON RADICALS AND OXY, CARBOXY, ALKOXY AND HALOGEN SUBSTITUTED DERIVATIVES THEREOF. A STRAIGHT CHAIN POLYALKOXYSILANE WILL BE REPRESENTED BY THE FORMULA 1 WHERE R AND A ARE METHYL RADICALS, FOR EXAMPLE, AND A CROSS-LINKED POLYSILOXANE WILL BE REPRESENTED BY THE FORMULA WHEN R REPRESENTS THE METHYL GROUP, AND A REPRESENTS THE FOLLOWING MONOVALENT, ALKOXY SUBSTITUTED HYDROCARBON RADICAL, FOR EXAMPLE, -CH2-(1,4-CYCLOHEXYLENE)-CH2-O- WHEN THE -O- ATOM IS BOUND TO THE SILICON ATOM IN FORMULA 1 ABOVE AND THE METHYLENE GROUP IS LINKED TO ANOTHER STRUCTURAL UNIT SUCH AS REPRESENTED IN FORMULA 1.
Inventors
- 👤 John G Fish
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |