Title:
VINYL ACETATEEETHYLENE COPOLYMER LATEX AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JPS5599906
Kind Code:
A
Abstract:
Vinyl acetate-ethylene copolymer latices having an inherent viscosity of not less than about 1.90 and demonstrating superior performance in the Time of Set Test and Vinyl Wetting Test are prepared by the process which comprises copolymerizing from about 60% to about 95% by weight of vinyl acetate monomer with from about 40% to about 5% by weight of ethylene monomer in an emulsified reaction medium containing: (a) at least one surface active agent in an amount of not less than about 1.0% by weight, and not more than about 2.0% by weight, of the total monomer, (b) a catalyst, and (c) a protective colloid, the total weight of the surface active agent and vinyl acetate monomer being introduced into the reaction medium in delayed increments prior to and after the commencement of copolymerization.
Inventors:
MANFURETSUDO HEIMUBAAGU
RUISU JIYOSEFU REKAAZU
RUISU JIYOSEFU REKAAZU
Application Number:
JP375180A
Publication Date:
July 30, 1980
Filing Date:
January 18, 1980
Export Citation:
Assignee:
NAT DISTILLERS CHEM CORP
International Classes:
C08F2/22; C08F218/00; C08F218/02; C08F2/00; C08F218/08; (IPC1-7): C08F2/22; C08F218/08; C08L31/04
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