Polyurethane casein coating composition
AssigneeBayer Aktiengesellschaft
InventorsWalter Schroer, Helmut Reiff, Dieter Dieterich, Karl Berger
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Abstract
Compositions suitable for coating leather or textile materials are provided which compositions are the reaction product of (a) solubilized casein (b) water-dispersible polyurethane and (c) formaldehyde.
Claims10
A coating composition comprising the reaction product of (a) solubilized casein (b) water-dispersible polyurethane and (c) formaldehyde, in such proportions that from about 10 to about 1,000 parts by weight of (b) and from about 1 to about 60 parts by weight of (c) are present per 100 parts by weight of solid material (a) wherein the reactants are reacted at temperatures between 40.degree. and 140.degree.C.
A coating composition comprising the reaction product of (a) solubilized casein (b) water dispersible polyurethane and (c) formaldehyde, in such proportions that from 218 to 887 parts by weight of (b) and from 18 to 300 parts by weight of (c) are present per 100 parts by weight of solid material (a) wherein the reactants are reacted at temperatures between 40.degree. and 140.degree.C.
A coating composition comprising the reaction production of (a) solubilized casein (b) water-dispersible polyurethane and (c) formaldehyde, in such proportions that from 218 to 624 parts by weight of (b) and from 18 to 300 parts by weight of (c) are present per 100 parts by weight of solid material (a) wherein the reactants are reacted at temperatures between 40.degree. and 140.degree.C.
Dependencies are inferred from the claim text.