Polyolefin-coated photographic support material
AssigneeFelix Schoeller jr. Foto-und Spezialpapiere GmbH & Co. KG
InventorRalf-Burkhard Dethlefs
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Abstract
A photographic support material with a coating on each side. At least one of the coatings comprises a mixture of polyolefins and optional agents that have a positive effect on the utilization of the support material. A white pigment is an example. The polyolefin mixture comprising the coating contains at least one copolymer of an .alpha.-olefin with an .alpha., .beta.-unsaturated carboxylic acid. At least 5% and preferably 20% to 80% by weight of the mixture is copolymer.
Claims15
In a photographic support material with a coating on one side comprising a mixture of olefin polymers and auxiliary agents, the improvement wherein the coating consists essentially of a polyolefin and at least one copolymer of an .alpha.-olefin with an .alpha.,.beta.-unsaturated carboxylic acid thereby improving the adhesion.
Dependencies are inferred from the claim text.