Cohesive coating compositions
AssigneeBritish Cellophane Limited
InventorAndrew Nicholas Ferrar
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Abstract
A cohesive coating composition comprises in dispersion in a liquid a mixture of between 51 and 99% by weight of a natural or synthetic rubber and between 1 and 49% by weight of a polyalkyl methacrylate in which dispersion there is incorporated between 5% and 35% by weight, based on the weight of the solids, of an inert particulate material having a mean particle size lying in the range between 0.2 and 50 microns. The compositions are applied to sheet materials used, for example, in packaging.
Claims1
A cohesive coating composition comprising in dispersion in a liquid a mixture of between 70 and 90% by weight of carboxylated styrene butadiene rubber and between 10 and 30% by weight of poly-n-butyl methacrylate in which dispersion there is incorporated between 10% and 25% by weight, based on the weight of the solids, of particulate hydrated aluminum silicate having a mean particle size lying in the range between 2.0 and 20 microns.
Dependencies are inferred from the claim text.