Bi-phase initiator system for water-in-oil emulsion polymers

Details Bi-phase initiator system for water-in-oil emulsion polymers Bi-phase initiator system for water-in-oil emulsion polymers

1986-11-18

1988-04-19

Schofer, Joseph L.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

526 81, 526 82, 526 86, 526109, 5262195, 5262196, 526262, 526264, 526286, 5263031, 526328, 5263285, 526330, 526341, C08F 232

Patent

active

047390085

ABSTRACT:
Water-in-oil emulsions of monomers which form water-soluble polymers are polymerized in the presence of a biphase initiator system containing both an oil-soluble initiator and a water-soluble initiator or activator or alternatively a water-soluble initiator and an oil-soluble activator which results in polymers having improved performance characteristics. In addition, the system permits the satisfactory polymerization of monomers which could not have been reproducibly polymerized.

REFERENCES:
patent: 3284393 (1966-11-01), Vanderhoff et al.
patent: 3573263 (1971-03-01), Gill
patent: 3951925 (1976-04-01), Mishima et al.
patent: 3951930 (1976-04-01), Downer et al.
patent: 4301264 (1981-11-01), Moore et al.

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