Copolymers of butadiene and carboxylated styrene
AssigneeRhone-Poulenc Industries
InventorsPierre Canard, Albert Levy
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Abstract
A coated substrate for photogravure printing in which the substrate is coated with an aqueous latex containing as an essential film forming component particles of a copolymer of butadiene and carboxylated styrene having a particle size within the range of 0.08-0.14 microns and consisting essentially of 41-45% by weight butadiene, 45-57% by weight styrene and 2-10% by weight of at least one unsaturated carboxylic ethylenic acid.
Claims3
An aqueous composition suitable for coating paper and cardboard for photogravure printing comprising an aqueous latex containing as the essential film-forming ingredient a copolymer of butadiene and carboxylated styrene, consisting essentially of 41 to 45% by weight of butadiene, 45 to 57% by weight of styrene and 2 to 10% by weight of at least one unsaturated carboxylic ethylenic acid, the particles of which have a diameter in the range of 0.08 to 0.14 micron.
Dependencies are inferred from the claim text.