Dispersion polymerisation process

Details Dispersion polymerisation process Dispersion polymerisation process

1988-01-14

1990-02-20

Kight, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528274, 528275, 524730, 523200, 523216, C08G 6302

Patent

active

049027727

ABSTRACT:
A process of polymerizing a polymerizable material in an inert organic liquid medium, in which the polymer formed from the monomer or monomers is insoluble, comprising dispersing the polymerizable material in the organic liquid in the presence of a finely, divided particulate material comprising an inorganic portion insoluble in the organic liquid medium and in combination therewith, preferably by covalent or ionic bonding, hydrocarbon chains containing at least 8 carbon atoms, the hydrocarbon chains being soluble in the organic liquid medium and heating the mixture to polymerize the polymerizable material to a required degree of polymerization. The process provides a means of stabilizing dispersion polymerizations which need to be carried out at very high temperatures to effect the polymerization.

REFERENCES:
patent: 4067852 (1978-01-01), Calundann
patent: 4708976 (1987-11-01), Ryan

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