Process for the production of ethylene copolymers

Details Process for the production of ethylene copolymers Process for the production of ethylene copolymers

C - Chemistry, Metallurgy

08

F

402/405, 402/415

C08F 2/14 (2006.01) C08F 210/02 (2006.01)

Patent

CA 1205600

Abstract of Disclosure A method for the production of certain ethylene copolymers which comprises saponifying a granular feedstock which includes a polymer of at least 50% ethylene, 2 to 50% of certain esters of C3 to C12 alkene carboxylic acids, 0 to 30% vinyl esters of certain aliphatic carboxylic acids having 1 to 6 carbon atoms, and up to 3% of C3 to C12 alkene carboxylic acids. In particular, the improvement comprises maintaining the feedstock at a particle size range of 0.1 to 8.0 mm, and suspending it in 1 - 10 parts of a ketone to 1 part of the feedstock, the ketone being of the formula Image wherein R and R' are individually an alkyl radical having 1 to 6 carbon atoms, and carrying out the saponification at a temperature of 40° to 75°C in the presence of at least one alkaline saponifying agent. The resulting compounds are useful as adhesives and coating materials. This Application claims the benefit of the priority of German Application P 30 46 144.0, filed December 6, 1980. -1-

391638

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