Using nitric oxide to reduce reactor fouling during polypropylen

Details Using nitric oxide to reduce reactor fouling during polypropylen Using nitric oxide to reduce reactor fouling during polypropylen

1997-09-29

1999-01-26

Dawson, Robert

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

525244, 524457, C08F 202

Patent

active

058639942

ABSTRACT:
A graft copolymer comprising a backbone of a propylene polymer material having a vinyl monomer graft polymerized thereto is produced by (1) treating a propylene polymer material with a free radical polymerization initiator, (2) treating the propylene polymer material with at least one grafting monomer capable of being polymerized by free radicals, and (3) removing any unreacted grafting monomer from the graft copolymerized propylene polymer material, decomposing any unreacted initiator, and deactivating any residual free radicals in the material, wherein (1) and (2) are carried out in the presence of a continuous feed of nitric oxide. The nitric oxide reduces the build-up of polymer deposits on reactor walls and gas circulation loops while having almost no effect on the graft copolymerization reaction.

REFERENCES:
patent: 3964979 (1976-06-01), Watson
patent: 4070419 (1978-01-01), Watson
patent: 4341600 (1982-07-01), Watson
patent: 4483965 (1984-11-01), Ohba et al.
patent: 4754058 (1988-06-01), Levy
patent: 5140074 (1992-08-01), DeNicola et al.
patent: 5283287 (1994-02-01), Kim et al.
patent: 5411994 (1995-05-01), Galli et al.
patent: 5589541 (1996-12-01), Kinoshita et al.

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