Bonding agent preparations for paints, the production and use thereof
AssigneeWolff Walsrode AG
InventorsReinhold Hecht, Lutz Hoppe, Erhard Lühmann
Life of this patent
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Abstract
A plasticized composition comprising 40 to 82 percent cellulose nitrate, having nitrogen content of less than 12.6% relative to the weight of said cellulose nitrate, and 18 to 60 percent formylated polyurethane, said percent, both occurrences, being relative to the weight of the composition, is disclosed. The plasticized composition is suitable for use in preparing paints.
Claims7
A plasticized composition comprising 40 to 82 percent cellulose nitrate and 18 to 60 percent formylated polyurethane, said percent, both occurrences, being relative to the weight of the composition, said cellulose nitrate having nitrogen content of less than 12.6% relative to the weight of said cellulose nitrate.
A paint composition comprising a plasticized composition comprising, (i) 40 to 82 percent by weight cellulose nitrate, based on the weight of said plasticized composition, said cellulose nitrate having a nitrogen content of less than 12.6 percent by weight, based on the weight of said cellulose nitrate;
- and (ii) 18 to 60 percent by weight of a formylated polyurethane, based on the weight of said plasticized composition.
A process for making a plasticized composition comprising (i) 40 to 82 percent by weight cellulose nitrate, based on the weight of said plasticized composition, said cellulose nitrate having a nitrogen content of less than 12.6 percent by weight, based on the weight of said cellulose nitrate;
- and (ii) 18 to 60 percent by weight of a formylated polyurethane, based on the weight of said plasticized composition, said process comprising applying directly said formylated polyurethane on said cellulose nitrate, said cellulose nitrate being water-moist, in a mixer which does not have a compacting effect.
Dependencies are inferred from the claim text.