Nippon Zeon Company, Ltd.

Tadahiro Go

Masaaki Inoue

Hiroshi Yaginuma

Takashi Suzuki

Liquid polymers made predominantly of 1,3-pentadiene and 1,3-butadiene, which have a number average molecular weight of 300 - 10,000 and an iodine number of at least 250 and are capable of forming hydrocarbon solvent-insoluble coatings thereof; a process for preparing the liquid polymers; and paint compositions comprising the liquid polymer as the vehicle.

Paint compositions containing liquid polymers

Novel aqueous coating compositions comprising a water soluble or dispersible material prepared by addition reacting with at least one .alpha.,.beta.-unsaturated dicarboxylic compound a mixture of a natural drying oil and a specific liquid copolymer containing 1,3-pentadiene and 1,3-butadiene polymerization units in a specific ratio by weight to form an addition product which is then neutralized to make it soluble or dispersible in water.

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Kawasaki, Japan

Tadahiro Go