Dispersion-polymerization process using block copolymers

Details Dispersion-polymerization process using block copolymers Dispersion-polymerization process using block copolymers

1975-05-02

1977-05-31

Lieberman, Paul

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 296RW, 260 297UP, 260879, 260880B, 260884, 260885, 260886, C08L 5300, C08L 8310

Patent

active

040269620

ABSTRACT:
There is disclosed a process of dispersion-polymerizing vinyl monomers promoted by free-radical catalysts. This process comprises dispersing under stirring in water a block copolymer of the A-B type wherein A represents a lipophilic block and B a hydrophilic block, adding one or more vinyl monomers containing the promoter and heating the mixture with stirring to the desired temperature. This process enables beads or balls of the desired polymer to be obtained having very regular size distribution.

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