C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
400/9202, 400/92
C08K 5/00 (2006.01) C08K 5/16 (2006.01) C09K 13/00 (2006.01)
Patent
CA 1156775
FDN-1122 POLYMER STABILIZERS ABSTRACT Polymer thickeners having a viscosity of at least 10 K, employed in acid media are stabilized with Redox indicators having from 6 to 30 carbon atoms, such as, for example, methylene blue, phenosafranine, pyronine Y, tartrazine, amaranth, methyl orange, and alkali metal salt of diphenylamine sulfonate and malachite green oxalate, which stabilizers are combined with the polymer in a concentration of between about 0.005 to about 1 weight %.
396804
Lorenz Donald H.
Williams Earl P.
G. A. F. Corporation
Smart & Biggar
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