High-conversion drift-free batch-type addition copolymerization

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymerizing in two or more physically distinct zones

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526 65, 526 87, C08F 200

Patent

active

040484130

ABSTRACT:
Copolymer substantially free from compositional drift can be produced in a batch-type addition copolymerization process to a high degree of conversion by initiating the reaction in a monomer-containing phase (optionally dispersed in another phase of a reaction mixture) containing the monomers at mole ratios f.sub.i such that the monomers will initially be incorporated into copolymer at the desired mole ratios F.sub.i and sustaining the reaction while simultaneously controlling the addition each monomer to the phase in which the copolymerization reaction is continuing according to the relation

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