Process for producing polymer particles

Details Process for producing polymer particles Process for producing polymer particles

1996-03-22

1998-06-30

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526248, C08F 200

Patent

active

057735425

ABSTRACT:
A process for producing polymer particles comprising polymerizing a water-soluble polymerizable monomer in a system comprising a hydrophobic organic solvent inert to the polymerization and an aqueous solution of the water-soluble polymerizable monomer, the process being characterized in that the polymerization is carried out in the presence of, as a dispersant, an anionic surface active agent represented by formula (I): ##STR1## wherein R.sup.1 represents a straight-chain or branched alkyl, alkenyl or 2-hydroxyalkyl group having 5 to 29 carbon atoms; M.sup.1 and M.sup.2, which may be the same or different, each represent an alkali metal ion, an ammonium ion or a hydrogen atom; and n represents 1 or 2.

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Buettner, Free Rad. Res. Comms., 1, No. 6, pp. 349-353 (1986).
Herp et al., Carbohydrate Research, 4, pp. 63-71 (1967).

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