The present invention relates to a multilayered cellulose-based substrate, comprising a cellulose-based first layer, and a cellulose-based second layer in contact with said first layer, wherein said substrate has a basis weight above 85 g/m.sup.2, wherein said first layer comprises an internal sizing agent, and wherein said second layer has been subjected to grafting with a fatty acid halide through the entire thickness of said second layer. The invention further relates to a method for manufacturing the multilayered cellulose-based substrate.

A paperboard structure including a paperboard substrate having a first major side and a second major side, a barrier coating layer on the first major side of the paperboard substrate, a top coat on the first major side of the paperboard substrate, wherein the barrier coating layer is positioned between the paperboard substrate and the top coat, and the paperboard structure providing a blocking rate of less than 2 at 50° C. and at 60 psi in a 24-hour period.

The present invention relates to a coated paper comprising a base paper and a barrier layer applied thereto, the barrier layer comprising at least one polymer, the polymer comprising an at least partly saponified polyvinyl alcohol and/or an at least partly saponified polyvinyl alcohol copolymer, each of which has an onset temperature of less than 210° C. determined by DSC.

The present invention refers to a mineral matter powder preparation by wet process without acrylic additive or other grinding aid additives and to the use of said mineral matter after an optional hydrophobic treatment. Said mineral material having superior dispersing properties.

The present invention refers to a mineral matter powder preparation by wet process without acrylic additive or other grinding aid additives and to the use of said mineral matter after an optional hydrophobic treatment. Said mineral material having superior dispersing properties.

The present invention provides a method for printing high opacity images or coatings using solvent based inks comprising hollow polymeric microspheres, wherein the inks do not contain titanium dioxide. The International Agency for Research on Cancer (IARC) has classified titanium dioxide as “possibly carcinogenic to humans,” The method of the present invention allows one to avoid the use of inks that rely on titanium oxide for high opacity, which has become of importance for articles that come into contact with one's mouth, for example, cigarette tipping papers.

The present invention relates to a coating structure for a sheet-like substrate comprising cellulosic fibres. The coating structure comprises at least a first coating layer and a second coating layer, where the second coating layer is arranged in a direct contact with the first coating layer. At least the first coating layer or the second coating layer is a barrier coating layer comprising at least one water-soluble cellulose derivative selected from alkyl celluloses, hydroxyalkyl alkyl celluloses, hydroxyalkyl celluloses and any of their mixtures, and a plasticizer.

The present invention relates to a coating structure for a sheet-like substrate comprising cellulosic fibres. The coating structure comprises at least a first coating layer and a second coating layer, where the second coating layer is arranged in a direct contact with the first coating layer. At least the first coating layer or the second coating layer is a barrier coating layer comprising at least one water-soluble cellulose derivative selected from alkyl celluloses, hydroxyalkyl alkyl celluloses, hydroxyalkyl celluloses and any of their mixtures, and a plasticizer.

A method for manufacturing a paperboard structure includes passing a paperboard substrate through a hot-hard calender to yield a calendered paperboard substrate, the hot-hard calender including a nip defined by a thermo-roller and a counter roller, wherein a contact surface of the thermo-roller is heated to an elevated temperature. The method then includes applying a basecoat to the calendered paperboard substrate to yield a basecoated paperboard substrate, the basecoat includes a basecoat binder and a basecoat pigment blend. The method further includes applying a topcoat to the basecoated paperboard substrate.

Inorganic particulate compositions containing inorganic particles associated with a copolymer of a hydrophilic monomer and a hydrophobic monomer associated with the inorganic particles are provided. The particulate composition satisfies at least one of the following properties: a BET surface area of the inorganic particles is greater than 8 m.sup.2/g, a Hegman value of the inorganic particles is 75 microns or less, and a rate of water loss from the composition upon drying from a moisture level greater than 2% wt % is at least 30% greater than a composition having a corresponding content of a polyacrylate polymer associated with the particles. A method to prepare the composition and formulations for inks, paints, coatings and filled polymeric articles containing the inorganic particulate composition are also provided.