Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymerizing in two or more physically distinct zones
Patent
1988-03-17
1991-09-10
Teskin, Fred
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymerizing in two or more physically distinct zones
526 87, 526 75, 526 88, 526193, 526199, 526200, 526201, 526202, 526216, 526217, 526225, 526249, 526255, 5263297, 526330, 526341, 5263442, 5263443, 526345, 526909, C08F 232, C08F 1406
Patent
active
050474880
ABSTRACT:
Vinyl polymers, e.g., the homo- and copolyvinyl chlorides, are prepared in one or more stages, to a degree of conversion of at least 50%, by suspended emulsion polymerizing at least one vinyl monomer, e.g., vinyl chloride, said at least one monomer having dispersed therein finely divided droplets of an aqueous solution of at least one component of a polymerization initiating system, and wherein the amount of water in said aqueous solution constitutes at least 19%, and preferably at least 20% by weight of the at least one monomer.
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Modern Plastics Encyclopedia, J. Agranoff (ed.), McGraw-Hill, Inc., N.Y., 104, 1980.
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Erard Francois
Nogues Pierre
Atochem
Teskin Fred
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