Process for extrusion polymerization of acrylic monomers

Details Process for extrusion polymerization of acrylic monomers Process for extrusion polymerization of acrylic monomers

1991-06-25

1993-03-23

Schofer, Joseph L.

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

Synthetic resins

Polymerizing in tubular or loop reactor

526194, 526192, 526 71, 526 73, C08F 202, C08F 416

Patent

active

051964899

ABSTRACT:
An extrusion polymerization process is described in which the polymerization of vinylic monomers, in particular acrylic monomers, is carried out in bulk in an extruder. The polymerization reaction is catalysed by a catalyst composition comprising an initiator, e.g. a ureido substituted silane, and a co-catalyst which is a salt providing a source of anions, e.g. fluoride ions.

REFERENCES:
patent: 3234303 (1966-02-01), Bild et a.
patent: 5019364 (1991-05-01), Boettcher et al.
patent: 5079206 (1992-01-01), Ballard et al.
O. W. Webster et al., (1983) J. Am. Chem. Soc. 105, 5706-5708.
D. Y. Sogah et al., (1987) Macro Mol. 20, 1473-1488.

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