Aqueous emulsion
AssigneeMitsui Toatsu Chemicals, Inc.
InventorsSeiji Kawamoto, Keiichi Kamda, Shoji Seki
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Abstract
An aqueous emulsion comprising a copolymer having a two-layer structure is produced by polymerizing at least one aqueous vinyl monomer component (II) in the presence of a seed emulsion (I) comprising seeds composed of a copolymer containing 10-50% by weight of (meth)acrylonitrile as a monomer unit. This aqueous emulsion has heat resistance, solvent resistance, and anti-blocking property, and can be used as an undercoating agent, an agent for treating a back side, a binder for diazo photosensitive paper, a binder for an offset master, and the like.
Claims12
A process for producing an aqueous emulsion which comprises polymerizing at least one aqueous vinyl monomer component (II) containing 50-100% by weight of (meth)acrylamide in the presence of a seed emulsion (I) comprising seeds composed of a copolymer containing 10-50% by weight of (meth)acrylonitrile as a monomer unit to produce a copolymer emulsion having a two-layer structure.
An aqueous emulsion composition having a two-layer structure produced by polymerizing at least one aqueous vinyl monomer component (II) containing 50-100% by weight of (meth)acrylamide in the presence of a seed emulsion (I) comprising seeds composed of a copolymer containing 10-50% by weight of (meth)acrylonitrile as a monomer unit.
Dependencies are inferred from the claim text.