A wet coating composition useful for coating a cellulosic fiber-based substrate is provided. The composition includes two aqueous emulsions. The first emulsion includes an oxidized paraffin/polyethylene wax and the second emulsion includes an ethylene/acrylic acid copolymer wax, ethylene/acrylic amide copolymer wax, ethylene/acrylic acid/acrylic amide copolymer wax or a mixture thereof. The oxidized paraffin/polyethylene wax has a surface energy less than or equal to 2 m N/m being substantially dispersive energy. The wet coating composition when dried forms a coating having a surface energy ranging from 20 to 60 m N/m being the sum of dispersive and polar energies. A process for treating a cellulosic fiber-based substrate with the wet coating composition, a substrate coated and articles including the coated substrate are also described. The process involves a heating step to allow migration of the coating towards a core of the cellulosic fiber-based substrate.

The present invention provides a paint formulation that has good storage stability and weather resistance, and that is capable of forming a paint film having excellent water resistance, chemical resistance such as gasohol resistance and fuel resistance, and adhesion. The paint formulation comprises an acid-modified polyolefin (A) and a tackifier (B), and satisfies the following (a) and (b): (a) the acid-modified polyolefin (A) has crystallinity; and (b) the tackifier (B) has a double-bond equivalent of 40 or more, as defined by the formula: double-bond equivalent=weight average molecular weight/number of double bonds in a molecule, or contains no double bond.

The present invention provides a paint formulation that has good storage stability and weather resistance, and that is capable of forming a paint film having excellent water resistance, chemical resistance such as gasohol resistance and fuel resistance, and adhesion. The paint formulation comprises an acid-modified polyolefin (A) and a tackifier (B), and satisfies the following (a) and (b): (a) the acid-modified polyolefin (A) has crystallinity; and (b) the tackifier (B) has a double-bond equivalent of 40 or more, as defined by the formula: double-bond equivalent=weight average molecular weight/number of double bonds in a molecule, or contains no double bond.

A process for preparing polyethylene and polypropylene polyolefin waxes by thermal depolymerization of polyethylene and polypropylene thermoplastic resins, and preparing polyethylene waxes within a certain viscosity range and molecular weight to transform into 100% biodegradable polyethylene waxes in a short period of time; the depolymerization process discloses a reaction of polyethylene thermoplastic resins to prepare polyethylene waxes provides a chemical transformation in the molecules of the polyethylene wax, making them subject to subsequent oxidation; the oxidized polyethylene waxes obtained has excellent quality and are also waxes with biodegradability characteristics in a short period of time, such as the original non-oxidized waxes; such oxidized waxes can be emulsified or dispersed in an aqueous medium, while maintaining the biodegradability characteristics, as the original oxidized waxes, and enabling the use in liquid, semi-pasty or pasty form.

A process for preparing polyethylene and polypropylene polyolefin waxes by thermal depolymerization of polyethylene and polypropylene thermoplastic resins, and preparing polyethylene waxes within a certain viscosity range and molecular weight to transform into 100% biodegradable polyethylene waxes in a short period of time; the depolymerization process discloses a reaction of polyethylene thermoplastic resins to prepare polyethylene waxes provides a chemical transformation in the molecules of the polyethylene wax, making them subject to subsequent oxidation; the oxidized polyethylene waxes obtained has excellent quality and are also waxes with biodegradability characteristics in a short period of time, such as the original non-oxidized waxes; such oxidized waxes can be emulsified or dispersed in an aqueous medium, while maintaining the biodegradability characteristics, as the original oxidized waxes, and enabling the use in liquid, semi-pasty or pasty form.

A modified polyolefin resin composition may include a modified polyolefin resin (X) formed by modifying an acid-modified polyolefin resin (A) with a modification component comprising an alcohol (B), in which the modified polyolefin resin composition satisfies (I) to (III): (I) the resin (A) is a resin formed by modifying a polyolefin (a) with an ,-unsaturated carboxylic acid and a derivative (b) of the ,-unsaturated carboxylic acid having a structure (b1) derived from at least one carboxy group; (II) a residual ratio of the structure (b1) in the resin (X) is more than 0% to 50% or less; and (III) a content of the alcohol in the composition is 1.0 mol to 5.0 mol relative to 1.0 mol of the structure (b1) that the resin (A) has.

A modified polyolefin resin composition may include a modified polyolefin resin (X) formed by modifying an acid-modified polyolefin resin (A) with a modification component comprising an alcohol (B), in which the modified polyolefin resin composition satisfies (I) to (III): (I) the resin (A) is a resin formed by modifying a polyolefin (a) with an ,-unsaturated carboxylic acid and a derivative (b) of the ,-unsaturated carboxylic acid having a structure (b1) derived from at least one carboxy group; (II) a residual ratio of the structure (b1) in the resin (X) is more than 0% to 50% or less; and (III) a content of the alcohol in the composition is 1.0 mol to 5.0 mol relative to 1.0 mol of the structure (b1) that the resin (A) has.

The present invention relates to an article comprising metal coated with an aqueous dispersion of polyolefin particles as well as metal coated with a polyolefin film arising from this dispersion. More particularly the polyolefin particles of the present invention are predominantly polypropylene particles.

The present invention relates to an article comprising metal coated with an aqueous dispersion of polyolefin particles as well as metal coated with a polyolefin film arising from this dispersion. More particularly the polyolefin particles of the present invention are predominantly polypropylene particles.