Process for producing acrylonitrile polymer melt
AssigneeJapan Exlan Company Limited
InventorsToshiyuki Kobashi, Masahiko Ozaki, Kenichi Ono
Life of this patent
Estimating the term…
Abstract
Process for producing an acrylonitrile polymer in a substantially melted state by polymerizing a monomer mixture composed mainly of acrylonitrile in the presence of water under a pressure above the autogenous pressure at a temperature of from 80.degree. to 120.degree. C so as to attain a polymerization rate of at least 45%.
Claims10
A process for producing an acrylonitrile polymer melt which comprises polymerizing a monomer mixing consisting of 50 - 98 mol percent acrylonitrile and the remainder composed of at least one different ethylenically unsaturated compound in a system in which water is present in a quantity within the range of 3 - 60 weight percent based on the total amount of the monomer mixture and the water, under a pressure above the self-generated pressure, at a temperature of 80.degree. - 120.degree. C., to convert at least 45 weight percent of the monomer mixture to the acrylonitrile polymer.
Dependencies are inferred from the claim text.