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US 4,731,121 AGranted
Viscous cellulose-containing mixture (paste) and use thereof in the production of aqueous coating dispersions
AssigneeWolff Walsrode AG
InventorsErhard Luhmann, Lutz Hoppe, Klaus Szablikowski, Hans-Joachim Traenckner
Life of this patent
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Abstract
Cellulose-containing pastes which may be diluted in low-solvent, high-solids aqueous cellulose lacquer dispersions and which contain certain anion-active emulsifiers.
Claims6
A viscous cellulose-containing paste by weight comprising approximately 5.0 to 60% of cellulose nitrate, 0.0 to 55% of a conventional lacquer resin, 0.0 to 40% of a plasticizer, 0.05 to 1.5% of a sulphosuccinic acid derivative of an ethoxylated nonylphenol as an anion-active emulsifier, 5 to 45% of at least one organic solvent, and 0.0 to 30% of water;
- the ratio of solids to organic solvent being at least equal to 1 and the anion-active emulsifier being present in at most 1.5% by weight, based on the solids content.
Dependencies are inferred from the claim text.