Polymerization apparatus
Abstract
Abstract An apparatus for continuously producing polymer having high degree of polymerization, comprising a substantially cylindrical vessel disposed in a substantially horizontal plane, said vessel having an inlet at its one end for supplying liquid reactant thereinto, an outlet at its other end for discharging polymer therefrom and a port or ports at its one or both ends or adjacent thereto for removing gas therefrom, and an agitator rotatably mounted in said vessel, said agitator including a pair of rotating shafts extending through end plates of the vessel on a central axis thereof, a pair of discs having diameter slightly smaller than the inside diameter of said vessel and connected to the inner ends of said rotating shafts, respectively, a plurality of rods extending in parallel with the central axis and connecting said discs and plurality of agitating members supported by said rods at spaced relationship in the vessel, each of said agitating members being made of an element constituting at least a part of a frustoconical member and having open ends, the bases of the agitating members being disposed at the outlet side of the vessel and their imaginary apex being disposed at the inlet side of the vessel.
Inventors
- 👤 Teruo Takiguchi
- 👤 Yoshihisa Fujimoto
- 👤 Yoshio Kimura
- 👤 Iwao Terasaki
Bibliographic Details
Claims Analysis
Total Claims: 10References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |