Method for the production of microcapsules

Details Method for the production of microcapsules Method for the production of microcapsules

1982-08-26

1984-03-27

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...

523200, 523206, 524801, 526201, C08L 7500

Patent

active

044395817

ABSTRACT:
A hydrophobic liquid including a polyvalent isocyanate therein is dispersed in an aqueous medium in the presence of a specific polymer dissolved therein to form an emulsion system for producing microcapsules. The specific polymer dissolved in the aqueous medium is a homopolymer or copolymer including monomer units represented by the general formula: ##STR1## wherein R is hydrogen or alkyl, M is ammonium, sodium, potassium, lithium or hydrogen and Q is further represented by ##STR2## wherein Y is methylene, ethylene or polymethylene having 3 to 10 carbon atoms, which methylene, ethylene or polymethylene may be substituted by at least one alkyl.

REFERENCES:
patent: 3886085 (1975-05-01), Kiritani et al.

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