Title:
METHOD FOR PREPARING ALIPHATIC POLYKETONE BY MEANS OF CONTINUOUS SOLUTION POLYMERIZATION METHOD, AND ALIPHATIC POLYKETONE
Document Type and Number:
WIPO Patent Application WO/2023/151192
Kind Code:
A1
Abstract:
The present invention provides a method for preparing an aliphatic polyketone by means of a continuous solution polymerization method, and an aliphatic polyketone. The method comprises the following steps: a) continuously feeding carbon monoxide, an olefin compound and a solvent system containing a catalyst into a continuous flow reactor to perform a solution polymerization reaction, so as to obtain an aliphatic polyketone, wherein the particle size of the aliphatic polyketone is 10-50 µm, the particle size distribution width Span is 0.5-0.9, and the stacking density is greater than 0.35 g/mL. Compared with the prior art, in the method provided in the present invention, a solvent system containing a catalyst is used, and continuous solution polymerization is carried out during a reaction to achieve continuous feeding and continuous discharging, so that the problems of polymer particle morphology regulation and control being difficult, materials being prone to hanging on the wall, the single kettle yield being low, the product repeatability being poor, etc., during a traditional batch slurry process are effectively solved, and an aliphatic polyketone having a weight-average molecular weight greater than 200 thousand, a molecular weight distribution less than 2.0, a stacking density greater than 0.35 g/mL, a particle size of 10-50 µm and a particle size distribution width Span of 0.5-0.9 can be obtained by means of polymerization.
Inventors:
PEI LIJUN (CN)
REN ZHAOYU (CN)
LIU YINGXIAN (CN)
WANG PENGPENG (CN)
CAO LIYAN (CN)
ZHANG PENGPENG (CN)
WANG RUIJING (CN)
REN ZHAOYU (CN)
LIU YINGXIAN (CN)
WANG PENGPENG (CN)
CAO LIYAN (CN)
ZHANG PENGPENG (CN)
WANG RUIJING (CN)
Application Number:
PCT/CN2022/090287
Publication Date:
August 17, 2023
Filing Date:
April 29, 2022
Export Citation:
Assignee:
CHAMBROAD CHEMICAL INDUSTRY RES INSTITUTE CO LTD (CN)
International Classes:
C08G67/02
Foreign References:
| CN111607077A | 2020-09-01 | |||
| CN112011048A | 2020-12-01 | |||
| CN112839980A | 2021-05-25 | |||
| CN101137695A | 2008-03-05 | |||
| JP2001098066A | 2001-04-10 | |||
| KR101145176B1 | 2012-05-14 | |||
| EP0788405A1 | 1997-08-13 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
Download PDF:
Previous Patent: METHOD FOR GENERATING PROFILE OF MECHANICAL DEVICE
Next Patent: STIRRING KNIFE AND FOOD PROCESSOR
Next Patent: STIRRING KNIFE AND FOOD PROCESSOR