Anionic polymerization process

Details Anionic polymerization process Anionic polymerization process

1979-03-08

1981-02-24

Hamrock, William F.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526173, 526174, 526175, C08F 446, C08F 448, C08F 450

Patent

active

042529255

ABSTRACT:
An anionic polymerization is carried out by polymerizing a monomer for anionic polymerization in a solvent in the presence of a polymerization initiator after preparing a polymerization system by an operation (I) adding a solution of an organometallic compound in a polymerization system of a solvent or a combination of a solvent and an inert gas and an operation (II) removing excess of the unreacted organometallic compound, before charging the monomer and the polymerization initiator.

REFERENCES:
patent: 3265680 (1966-08-01), Forman et al.
patent: 3949020 (1976-04-01), Prudence
patent: 4048420 (1977-09-01), Francois et al.
patent: 4104455 (1978-08-01), Nagasawa et al.
patent: 4146693 (1979-03-01), Beauregard

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