Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1975-04-03
1977-02-22
Welsh, M. J.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
260 296SQ, 260 297W, 260 297UP, C08L 3302
Patent
active
040091384
ABSTRACT:
There is provided a process for preparing a stable polymer emulsion characterized by polymerizing a radical-polymerizable monomer having unsaturated bond by using a water-soluble catalyst in an aqueous medium and in the presence of a water-soluble polymer containing chemically bonded monomeric units of methacrylic acid or its salt and monomeric units of ethylenically unsaturated sulfonic acid or its salt, said polymerization being conducted at a pH of 4 or lower.
REFERENCES:
patent: 2883369 (1959-04-01), Rees
patent: 3203938 (1965-08-01), Baechtold
patent: 3340238 (1967-09-01), Smith et al.
patent: 3617368 (1971-11-01), Gibbs
Kobashi Toshiyuki
Masuhara Kenichi
Japan Exlan Company Limited
Welsh M. J.
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