Japan Atomic Energy Research Institute

Kansai Paint Company, Ltd.

Tohru Takagi

Keizo Makuuchi

Hiroyuki Nakayama

Kunio Araki

Miyuki Hagiwara

Tsutomu Yamamoto

Takashi Sasaki

Akio Katakai

Fumio Hosoi

Haruo Kozu

A polymer composition is herein disclosed, which consists essentially of:

Polymer compositions

A resin composition for aqueous paint is produced by exposing to electron beams a mixture comprising 50 to 95 wt % of an epoxy resin, 1 to 23 wt % of an ethylenically unsaturated monomer having a carboxyl group and 4 to 44 wt % of a monomer having one ethylenically unsaturated bond in the molecule. The resin composition provides a coating having good coating surface, adhesion strength, solvent resistance, water resistance and processability.

Resin composition for aqueous paint

An emulsion composition for use in baking paint prepared by emulsion polymerization with ionizing radiation of a monomer mixture comprising (1) at least one acrylamide selected from the group consisting of N-methylolacrylamide and N-alkoxymethylacrylamide, (2) a radical polymerizable ethylenic unsaturated monomer having a hydroxyl group, and (3) a radical polymerizable ethylenic unsaturated monomer other than (1) and (2) above.

Emulsion composition for use in baking paint

A process for producing a reactive aqueous emulsion comprising dispersing a monomer mixture of (a) 65.0 - 98.8% by weight of radical polymerizable hydrophobic ethylenic unsaturated monomer having one ethylenic unsaturated bond, (b) 1.0 - 30.0% by weight of radical polymerizable ethylenic unsaturated monomer having a glycidyl group and (c) 0.2 - 5.0% by weight of a radical polymerizable ethylenic unsaturated monomer having a carboxylic group in water by virtue of a restricted amount of surface active agent and irradiating with an ionizing radiation for a total dose of more than 0.01 Mrad at temperatures ranging from -5.degree. C. to 50.degree. C. This reactive aqueous emulsion does not contain low-molecular water-soluble compounds such as a radical polymerization initiator, a pH regulator, etc. and can form a film having improved properties.

Radiation process for producing a reactive aqueous emulsion

A process is, herein, disclosed for preparing a thermosetting aqueous polymer emulsion comprising;

Process for preparing a thermosetting aqueous polymer emulsion using

The properties of a thermosetting polymer emulsion can be improved by irradiation with an ionizing radiation. By adding a specific amount of lipophilic polyfunctional monomer to a thermosetting polymer emulsion and irradiating with an ionizing radiation, the properties of the thermosetting polymer emulsion can be improved regardless of the type of thermosettable polymer constituting the emulsion. The thermosetting polymer emulsion of which properties are improved by this invention can form a film having excellent water-resistance, chemical resistance and toughness.

Process for preparing a heat-curable polymer emulsion using high energy

A process for producing an aqueous emulsion type coating composition, which can form a film having excellent resistance to chemicals and water, which comprises irradiating the aqueous emulsion containing at least one radiation-crosslinkable resin and not containing substantial amounts of a stabilizer having a hydroxy group, such as cellulose and polyvinyl alcohol, by means of ionizing radiation.

Process for improving the properties of an aqueous emulsion type coating

A method for producing a plate or sheet useful in planographic printing which is characterized in that the surface of an oleophilic body comprising oleophilic resin is subjected to a corona discharge treatment to form a hydrophilic layer on said surface, and that said method can be carried out without difficulty at a low cost and the reproducibility of the printing plate thereby produced is excellent.

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Hiratsuka, Japan

Tohru Takagi