Rhone-poulenc Industries

Rhone-progil

Albert Levy

Pierre Canard

A coated paper for offset printing in which the paper is coated with an aqueous latex containing particles of a diameter within the range of 0.20 to 0.30 microns of a copolymer of butadiene styrene and unsaturated carboxylic acid having a composition consisting essentially of 35-40% by weight butadiene, 50-63% by weight styrene and 2-10% by weight of at least one unsaturated carboxylic ethylenic acid.

Chemical composition

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.

Copolymers of butadiene and carboxylated styrene

A paper or cardboard coating composition comprising an aqueous dispersion containing binder and pigment in which 5-30 percent by weight of the pigment are particles dimensioned within the range of 0.05-0.3 microns of a non-film forming synthetic polymer and in which 70-95 percent by weight of the pigment is calcium carbonate.

Growing community of inventors

Orly, France

Albert Levy