Title:
A manufacturing method of polyether, a manufacturing method of pre polymer, and a manufacturing method of modified silicone polymer
Document Type and Number:
Japanese Patent JP5979152
Kind Code:
B2
Abstract:
It is made possible to prepare a polyether having a high molecular weight with a lower viscosity. A polyether preparation method which comprises a polymerization step of subjecting a monoepoxide having at least 2 carbon atoms to ring-opening addition polymerization to an initiator having at least one active hydrogen-containing functional group in the presence of a catalyst in a stirring vessel 1, to obtain a polyether, wherein the stirring vessel 1 is a stirring vessel wherein a stirring shaft 2 rotatable by an external drive source is provided at the center of the stirring vessel 1; plate-shaped bottom paddles 5, 5 extending in a radial direction of the stirring vessel 1 are mounted on a lower portion of the stirring shaft 2; lattice vanes 6 each comprising arm paddles 7a, 7b, 7c extending in a radial direction and strips 8a, 8b extending in an axial direction, are mounted on a portion of the stirring shaft 2 above the bottom paddles 5, 5; and a discharge nozzle 10 as a monoepoxide-supply means for discharging the monoepoxide to at least two locations below the lower ends of the strips 8a, 8b in the stirring vessel 1.
Inventors:
Arai Gomei
Satoshi Suzuki
Chitoshi Suzuki
Hideaki Tanaka
Satoshi Suzuki
Chitoshi Suzuki
Hideaki Tanaka
Application Number:
JP2013541846A
Publication Date:
August 24, 2016
Filing Date:
November 01, 2012
Export Citation:
Assignee:
Asahi Glass Co., Ltd.
International Classes:
C08G65/28; C08G65/333; C08G65/336; C09K3/10
Domestic Patent References:
| JP5247199A | ||||
| JP6200012A | ||||
| JP2003342361A | ||||
| JP2004231883A |
Foreign References:
| WO2011111797A1 |
Attorney, Agent or Firm:
Sumio Tanai
Masatake Shiga
Suzuki Mitsuyoshi
Noriko Yanai
Masatake Shiga
Suzuki Mitsuyoshi
Noriko Yanai