Title:
【発明の名称】架橋ポリβ‐アラニンの製造方法
Document Type and Number:
Japanese Patent JP2610326
Kind Code:
B2
Abstract:
Process for the preparation of crosslinked poly- beta -alanine in the form of microspheres.
This process comprises the stages consisting:
a) in polymerising acrylamide in the tert-butanol/toluene solvent mixture in the presence of a polymerisation initiator and of an octadecene-maleic anhydride copolymer as dispersing agent,
b) in subjecting the poly- beta -alanine suspension obtained to crosslinking with the aid of a dialdehyde as crosslinking agent, and
c) in isolating the microspheres of crosslinked poly- beta -alanine.
The microspheres obtained exhibit a narrow size scatter.
Inventors:
Claudine Lapoirille Ne Vendon Bosier
Claude Mayu
Christos Papantonio
Claude Mayu
Christos Papantonio
Application Number:
JP31522088A
Publication Date:
May 14, 1997
Filing Date:
December 15, 1988
Export Citation:
Assignee:
LOREAL
International Classes:
C08F8/28; C08G69/08; C08F20/56; C08G69/00; C08G69/50; (IPC1-7): C08G69/00
Domestic Patent References:
| JP5924723A | ||||
| JP5298794A |
Attorney, Agent or Firm:
Shigeru Yagita (2 outside)