Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1978-05-25
1980-04-08
Konopka, P. E.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
526 91, 526 93, 526192, 526216, 5263297, C08F 2014, C08F22014, B01J 2702
Patent
active
041972155
ABSTRACT:
In the use of certain metal salts of the hemi-perester of maleic acid as catalysts for the polymerization and curing of ethylenically unsaturated monomers and of methyl methacrylate-containing syrups the addition of an activator such as sodium bisulfite provides a substantial reduction in the curing time. The process is relatively insensitive to the amount of filler used.
The salts of maleic hemi-peresters, in combination with the activators, are also useful for polymerizing ethylenically unsaturated monomers.
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patent: 3775364 (1973-11-01), Duggins
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E. I. Du Pont de Nemours and Company
Konopka P. E.
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