Title:
PROCESS FOR THE PREPARATION OF COMPOSITE POLYMERIC PARTICLES IN EMULSION
Document Type and Number:
WIPO Patent Application WO/2003/014176
Kind Code:
A1
Abstract:
A process is described for producing aqueous latexes essentially consisting of composite polymeric particles which comprises: (a) a first radicalic polymerization step in aqueous emulsion of monomers selected from vinylaromatics and mixtures of vinylaromatics/conjugated dienes, thus obtaining the first latex; (b) a second radicalic polymerization step in aqueous emulsion which consists in polymerizing, on the latex obtained in step (a), chloroprene or mixtures of chloroprene and monomers copolymerizable with chloroprene, the latter in a quantity not higher than 10% by weight with respect to the chloroprene, thus obtaining the latex object of the present invention.
Inventors:
MASI FRANCESCO (IT)
LIMA ROMANO (IT)
MAESTRI PIERO (IT)
LIMA ROMANO (IT)
MAESTRI PIERO (IT)
Application Number:
PCT/EP2002/008455
Publication Date:
February 20, 2003
Filing Date:
July 26, 2002
Export Citation:
Assignee:
POLIMERI EUROPA SPA (IT)
MASI FRANCESCO (IT)
LIMA ROMANO (IT)
MAESTRI PIERO (IT)
MASI FRANCESCO (IT)
LIMA ROMANO (IT)
MAESTRI PIERO (IT)
International Classes:
C08F2/16; C08F257/02; C09J111/02; C09J151/00; (IPC1-7): C08F257/02; C09J151/00
Foreign References:
| GB837334A | 1960-06-09 | |||
| GB757531A | 1956-09-19 | |||
| US3372134A | 1968-03-05 |
Attorney, Agent or Firm:
Gregori, Antonella DE. (Ing. Barzanò & Zanardo Milano S.p.A. Via
Borgonuovo 10 Milan, IT)
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