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

1989-09-26

1991-01-29

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...

524535, 524804, C08F25908, C08F26502, C08F29100

Patent

active

049887718

ABSTRACT:
A graft copolymer having dispersion stabilizing effect, which comprises on the carbon backbone thereof a polymer side chain comprising a carbon chain having a molecular weight of 1,000.about.100,000, a fluorine atom containing fluorine side chain and a hydrophilic side chain containing a hydrophilic group, the total mean molecular weight of said graft copolymer being 5,000 or more. The graft copolymer of this invention can be used as an excellent dispersion stabilizer 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.

REFERENCES:
patent: 3666693 (1972-05-01), Chapiro et al.
patent: 3786116 (1974-01-01), Milkovich et al.
patent: 3875262 (1975-04-01), Milne
patent: 4622288 (1986-11-01), Yokoyama
patent: 4732941 (1988-03-01), Numa
patent: 4833207 (1989-05-01), Kinaga et al.

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