Process for the polymerization of alkylene oxide and catalyst therefor
Abstract
Abstract A PROCESS FOR THE PREPARATION OF HOMOPOLYMER OR COPOLYMER OF AN ALKYLENE OXIDE BY POLYMERIZING AT LEAST ONE ALKYLENE OXIDE INTHE PRESENCE OF CATALYST, THE CATALYST COMPRISING THE COMPOSITION FORMED BY MIXING THE REACTION PRODUCT (COMPONENT 1) OBTAINED BY REACTING AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN ORGANOTIN COMPOUND CONTAINING AT LEAST ONE SN-C LINKAGE IN ITS MOLECULE, AND HALIDES OF TITANIUM, ZIRCONIUM, HAFNIUM, OR TIN, WITH A PHOSPHORIC ACID ESTER IN WHICH THE ORGANIC RADICAL CONTAINS 1-12 CARBON ATOMS; WITH A COMPOUND (COMPONENT 2) SELECED FROM THE GROP CONSISTING OF ALKYLATION PRODUCTS OF ZINIC, MAGNESIUM, ALUMINUM, TITANIUM, SILICON OR TIN, ALKOXIDES OF ZINC, MAGNESIUM, ALUMINUM, TITANIUM, SILICON OR TIN, OR HALIDES OF TITANIUM, ZICONIUM OR TIN.
Inventors
- 👤 H Komai
- 👤 N Kimura
- 👤 H Yamamoto
- 👤 T Usui
- 👤 H Hosozawa
- 👤 T Nakata
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |