Paper coating material containing pullulan
AssigneesSumitomo Chemical Company, Limited, Hayashibara Biochemical Laboratories, Incorporated
InventorsSeizo Nakashio, Noriyuki Sekine, Nobuhiro Toyota, Fumio Fujita, Masahiro Domoto
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Abstract
A coating material obtained by incorporating into a paper coating material pullulan, which is a linear high polymer having repetition units, bonded through .alpha.-1,6 linkages, of maltotriose, a trimer of glucose, and is represented by the formula, ##SPC1## Wherein n represents the polymerization degree and is an integer of 20 to 10,000, is excellent in such properties as gloss, printing gloss, adhesive strength, and viscosity stability during storage.
Claims3
A paper-coating composition comprising pullulan and at least one pigment selected from the group consisting of clay, calcium carbonate, titanium dioxide, satin white and aluminum hydroxide.
Dependencies are inferred from the claim text.