Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1985-08-22
1987-02-17
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C08F 2008
Patent
active
046440445
ABSTRACT:
A process for the manufacture of radical ethylene terpolymers or copolymers comprising moieties derived from an alkyl (meth)acrylate and/or moieties derived from maleic anhydride by copolymerizing, in the presence of at least one free-radical initiator, a mixture of ethylene, (meth)acrylate and/or maleic anhydride in a device comprising a primary compressor, the delivery pressure of which is between 200 and 300 bars, connected to a secondary compressor which is connected directly to a polymerization reactor, fresh ethylene being fed at the intake of the said primary compressor and said copolymerization being carried out in the said polymerization reactor under a pressure of between 1,000 and 2,500 bars and at a temperature of between 140.degree. and 280.degree. C., wherein the feeding of the (meth)acrylate and/or maleic anhydride into the reactor if effected by introducing maleic anhydride and/or (meth)acrylate at the intake of the secondary compressor. In the case of terpolymers, maleic anhyride is introduced as a solution in the (meth)acrylate.
The process of the invention has the advantage of not requiring a homogenization device before the entry of the monomers into the reactor.
REFERENCES:
patent: 3884857 (1975-05-01), Ballard
patent: 3925326 (1975-12-01), Logothetis
patent: 3926925 (1975-12-01), Kuntz
Andureau Joel
Gloriod Pierre
Pellegrini Maurice
Michl Paul R.
Societe Chimique des Charbonnages, S.A.
LandOfFree
Process for manufacturing ethylene terpolymers and ethylene copo does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for manufacturing ethylene terpolymers and ethylene copo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for manufacturing ethylene terpolymers and ethylene copo will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1938658