Graft copolymer having dispersion stabilizing effect, a process

Details Graft copolymer having dispersion stabilizing effect, a process Graft copolymer having dispersion stabilizing effect, a process

1987-06-25

1990-04-10

Seccuro, Carman J.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525242, 526201, C08L 5100, C08F 222

Patent

active

049161911

ABSTRACT:
A graft copolymer having dispersion stabilizing effect, which is a product of the polymerization of 5 to 30% by weight of a macromonomer which has a molecular weight of 1,000 to 100,000 and has a radical polymerizable unsaturated group at its one end, 1 to 40% by weight of a hydrophillic monomer which has a hydrophillic moiety in it and has a radical polymerizable unsaturated group, and 5 to 40% by weight of a fluorinated monomer which has a florinated moiety in it and has a radical polymerizable unsaturated group, the % by weight being based on a total of the three monomers, and 0 to 50% of the total of the total of the three monomers of a monomer copolymerizable therewith. The graft copolymer of this invention can be used as an excellent dispersion stablilizer for emulsion polymerization, whereby in emulsion polymerization it is possible to attain polymer particle dispersion stability to ensure that the polymer particles will not be agglomerated even if they have been grown to larger particles having a diameter of 0.5 .mu. or more and that dispersion of the polymer particles having a large and uniform particle diameter is obtained.

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