Preparation of modified petroleum resins

Details Preparation of modified petroleum resins Preparation of modified petroleum resins

C - Chemistry, Metallurgy

08

F

402/400, 402/515

C08F 32/06 (2006.01) C08F 240/00 (2006.01) C09D 11/10 (2006.01)

Patent

CA 1167597

ABSTRACT OF THE DISCLOSURE Carboxyl modified petroleum resins suitable as resins in inks for off-set printing are obtained by heating cyclopentadiene or a comparable monomer with 1 to 15 wt.% of a carboxylic acid which is not alpha-beta, unsaturated at from 270°C to 290°C under sufficient pressure to keep the mixture liquid.

353330

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