Title:
DISPERSION STABILIZER FOR SUSPENSION POLYMERIZATION OF VINYL-COMPOUND
Document Type and Number:
Japanese Patent JP3629065
Kind Code:
B2
Abstract:
PURPOSE: To obtain the subject stabilizer comprising a specific polyvinyl alcohol resin, capable of obtaining porous and uniform beads excellent in bulk density, and the sharpness and reproducibility of particle size distribution.
CONSTITUTION: This stabilizer comprises (A) a polyvinyl alcohol resin containing an acetacetic acid ester group (AA group) [e.g. having an AA group content of 0.05 to 30 (mol) %], and, if necessary, (B) a polyvinyl alcohol resin free from AA group (e.g. having a saponification degree of 30 to 60% and a degree of polymerization of 100 to 1000), and/or (C) a cellulose derivative such as methyl cellulose, hydroxyethyl cellulose, hydroxypropyl (methyl) cellulose.
Inventors:
Mitsuo Shibuya
Akio Kitagawa
Akio Kitagawa
Application Number:
JP14537895A
Publication Date:
March 16, 2005
Filing Date:
May 19, 1995
Export Citation:
Assignee:
Nippon Synthetic Chemical Industry Co., Ltd.
International Classes:
C08L31/02; C08F2/18; C08F2/20; C08F8/14; C08F16/02; C08F18/02; C08F216/06; C08F218/10; (IPC1-7): C08F2/20
Domestic Patent References:
| JP1204901A | ||||
| JP56093702A | ||||
| JP6080709A | ||||
| JP5065307A | ||||
| JP60058402A |
Previous Patent: METHOD AND DEVICE FOR DESIGNING COLOR CORRECTION OPTICAL SYSTEM
Next Patent: SURFACE TREATING DEVICE OF BOILER DRUM BLANK
Next Patent: SURFACE TREATING DEVICE OF BOILER DRUM BLANK