Manufacture of copolymers of ethylene

Details Manufacture of copolymers of ethylene Manufacture of copolymers of ethylene

1976-05-19

1977-09-13

Wong, Jr., Harry

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymerizing in tubular or loop reactor

526324, 526329, 526331, 528501, C08F21002

Patent

active

040484114

ABSTRACT:
A process for the manufacture of copolymers of ethylene with vinyl acetate at pressures above 800 atmospheres and at from 150.degree. to 350.degree. C, using mean residence times of up to at most 100 seconds. The reaction mixture obtained from the polymerization is kept for from 2 to 10 minutes at from 150.degree. to 250.degree. C under a pressure below 500 atmospheres. Homogeneous ethylene/vinyl acetate copolymers are obtained without the formation of substantial amounts of free acetic acid by decomposition of the vinyl acetate.

REFERENCES:
patent: 3551397 (1970-12-01), Ratzsch et al.

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