Provided is a resin composition capable of forming a coated product that exhibits low adhesion to a metal roll during production and is superior in oxygen barrier property and capable of forming a film or sheet superior in oxygen barrier property, impact strength under low humidity and color tone. The resin composition of the present invention contains 50 to 98 parts by mass of a modified starch (A), 2 to 50 parts by mass of a polyvinyl alcohol (B), 0.1 to 10 parts by mass of a polyoxyalkylene (C), and optionally 0 to 5 parts of a polyol plasticizer (D), wherein the total content of the (A), (B), (C) and (D) is 100 parts by mass.

Provided is a resin composition capable of forming a coated product that exhibits low adhesion to a metal roll during production and is superior in oxygen barrier property and capable of forming a film or sheet superior in oxygen barrier property, impact strength under low humidity and color tone. The resin composition of the present invention contains 50 to 98 parts by mass of a modified starch (A), 2 to 50 parts by mass of a polyvinyl alcohol (B), 0.1 to 10 parts by mass of a polyoxyalkylene (C), and optionally 0 to 5 parts of a polyol plasticizer (D), wherein the total content of the (A), (B), (C) and (D) is 100 parts by mass.

A biodegradable cellulose fiber-based substrate, at least one side of which is coated with a release coating including: a) at least one water-soluble polymer (WSP) containing hydroxyl groups, and b) at least one lactone substituted with at least one linear or branched and/or cyclic C.sub.8-C.sub.30 hydrocarbon chain which may contain heteroatoms. The biodegradable substrate is certified biodegradable in accordance with EN 13432. A method of production thereof is also disclosed.

A biodegradable cellulose fiber-based substrate, at least one side of which is coated with a release coating including: a) at least one water-soluble polymer (WSP) containing hydroxyl groups, and b) at least one lactone substituted with at least one linear or branched and/or cyclic C.sub.8-C.sub.30 hydrocarbon chain which may contain heteroatoms. The biodegradable substrate is certified biodegradable in accordance with EN 13432. A method of production thereof is also disclosed.

The use of at least one modified polysaccharide selected from starch, amylose, amylopectin and dextrin or a mixture thereof substituted with one or more amine and/or ammonium groups, as an antimicrobial agent, is provided by the present invention, as well as compositions comprising a polymer material blended with the modified polysaccharide. Also provided by the present invention are antimicrobial articles produced from the compositions of the invention and antimicrobial surface, fabric, foam or sponge produced by coating, soaking or dipping in a solution comprising modified polysaccharides. The present invention further provides non-therapeutic methods for killing microorganisms, inhibiting their growth, and/or preventing formation of a biofilm, and for producing an antimicrobial surface, article, fabric, foam or sponge from modified polysaccharides.

A laminate comprising: a gas barrier layer (I) comprising a modified starch (A) having an average amylose content of 45% by mass or more and a water-soluble polymer (B); and a substrate (II) adjacent to the gas barrier layer (I), wherein the laminate exhibits a degree of biodegradation of 80% or more in a biodegradability test in accordance with ISO 14855-1.

A water-based, carbon filler-dispersed coating formulation for forming a conductive coating film contains (1) a hydroxyalkyl chitosan as a resin binder, (2) a conductive carbon filler, and (3) a polybasic acid or its derivative in a water-based medium containing at least water as a polar solvent. In 100 parts by mass of the coating formulation, the hydroxyalkyl chitosan (1) is contained in a range of from 0.1 to 20 parts by mass, and the conductive carbon filler (2) is contained in a range of from 1 to 30 parts by mass. An electricity-imparting material, an electrode plate for an electricity storage device, a process for producing the electrode plate, and the electricity storage device are also disclosed.

A water-based, carbon filler-dispersed coating formulation for forming a conductive coating film contains (1) a hydroxyalkyl chitosan as a resin binder, (2) a conductive carbon filler, and (3) a polybasic acid or its derivative in a water-based medium containing at least water as a polar solvent. In 100 parts by mass of the coating formulation, the hydroxyalkyl chitosan (1) is contained in a range of from 0.1 to 20 parts by mass, and the conductive carbon filler (2) is contained in a range of from 1 to 30 parts by mass. An electricity-imparting material, an electrode plate for an electricity storage device, a process for producing the electrode plate, and the electricity storage device are also disclosed.

The resin composition of the present invention comprises 40 to 98 parts by mass of a modified starch (A), 2 to 60 parts by mass of a polyvinyl alcohol (B) having a degree of saponification of 75.0 mol% or more, and optionally a clay (C), wherein the total content of the (A), (B) and (C) is 100 parts by mass, and the peak temperature of tan δ in measurement of dynamic viscoelasticity in a range of 20° C. to 150° C. is 128° C. or lower.

The resin composition of the present invention comprises 40 to 98 parts by mass of a modified starch (A), 2 to 60 parts by mass of a polyvinyl alcohol (B) having a degree of saponification of 75.0 mol% or more, and optionally a clay (C), wherein the total content of the (A), (B) and (C) is 100 parts by mass, and the peak temperature of tan δ in measurement of dynamic viscoelasticity in a range of 20° C. to 150° C. is 128° C. or lower.