Manufacture of polymers in bead form from water-soluble, ethylen

Details Manufacture of polymers in bead form from water-soluble, ethylen Manufacture of polymers in bead form from water-soluble, ethylen

1977-07-20

1980-02-19

Henderson, C. A.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526200, 526201, 526207, 526210, 526303, C08F 232, C08F 220

Patent

active

041895592

ABSTRACT:
Production of polymers in bead form by forming a water-in-oil suspension of an aqueous solution containing at least one water-soluble ethylenically unsaturated monomer in an inert hydrophobic liquid organic dispersion medium and polymerizing the suspended monomer in the presence of a polymerization initiator and a protective colloid obtained by reacting an oily or resinous polymer of an olefin and/or diolefin, said polymer containing hydrogen atoms in the allyl position, with 2 to 30% by weight, based on the oil and/or resin, of maleic anhydride.

REFERENCES:
patent: 3933763 (1976-01-01), Goretta
patent: 3948866 (1976-04-01), Pennewiss

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