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US 5,178,944 AGranted
Recording material
AssigneeSumitomo Chemical Company, Limited
InventorsHiroshi Horiuchi, Hirofumi Tsuka, Nobuyuki Matsuda
Life of this patent
Estimating the term…
Abstract
A recording material comprising a base material and at least one polymer selected from the group consisting of a homopolymer of diallylamine, copolymers of diallyamine with (meth)acrylamide and optionally at least one other vinyl monomer having substantially no carboxyl group, and salts thereof which is contained in said base material or in a coating layer formed on said base material, on which an ink is printed with good initial coloring property and a printed image with higher resolution and improved water and light resistance.
Claims19
A recording material comprising:
- a base material, and
- a layer containing at least one polymer selected from the group consisting of a homopolymer of diallylamine, copolymers of diallylamine with (meth)acrylamide and optionally at least one vinyl monomer, which copolymers have essentially no carboxyl group, and acid salts thereof, said layer containing at least one polymer being formed in or on said base material by dipping or coating said base material in or with a liquid containing said polymer,
- wherein said diallylamine is water-soluble and is present in a molar fraction amount of at least 0.1, said (meth)acrylamide is present in a molar fraction amount of up to 0.9, and said vinyl monomer is present in a molar fraction amount of up to 0.3, and wherein the polymer is contained in an amount of 0.05 to 10 g per square meter of said base material.
Dependencies are inferred from the claim text.