In a coating agent obtained by water-dispersing a polyurethane resin, the polyurethane resin is a secondary reaction product of an isocyanate group-terminated prepolymer and a chain extender. The isocyanate group-terminated prepolymer is a primary reaction product of a polyisocyanate component containing a xylylene diisocyanate and/or a hydrogenated xylylene diisocyanate, and an active hydrogen group-containing component containing a short chain diol having 2 to 6 carbon atoms and an active hydrogen compound having a hydrophilic group; and the viscosity at 25° C. of the coating agent is 50 mPa.Math.s or more.

In a coating agent obtained by water-dispersing a polyurethane resin, the polyurethane resin is a secondary reaction product of an isocyanate group-terminated prepolymer and a chain extender. The isocyanate group-terminated prepolymer is a primary reaction product of a polyisocyanate component containing a xylylene diisocyanate and/or a hydrogenated xylylene diisocyanate, and an active hydrogen group-containing component containing a short chain diol having 2 to 6 carbon atoms and an active hydrogen compound having a hydrophilic group; and the viscosity at 25° C. of the coating agent is 50 mPa.Math.s or more.

The disclosure relates to a coating composition that can be applied to a substrate, especially a cellulose substrate. A layer of the coating composition applied to the substrate provides an excellent ink receptive layer and can be used as a coating on paper. The disclosure also relates to aqueous compositions and method for applying the layer of the coating composition onto the substrate.

The disclosure relates to a coating composition that can be applied to a substrate, especially a cellulose substrate. A layer of the coating composition applied to the substrate provides an excellent ink receptive layer and can be used as a coating on paper. The disclosure also relates to aqueous compositions and method for applying the layer of the coating composition onto the substrate.

Disclosed are a biodegradable coating composition for a mulching paper and a mulching paper. Out of these, the biodegradable coating composition for mulching paper to be coated on a surface of mulching paper comprises: spring water prepared by immersing a mineral substance powder that includes sericite powder and has a particle size distribution of 400 to 700 mesh in a container containing water for 10 to 20 days and thus dissolving a mineral component of a mineral substance in water at 45 to 72 parts by weight; charcoal powder having a particle size of 1,000 to 3,000 mesh at 3 to 8 parts by weight; calcium solution at 8 to 13 parts by weight; a filler including sulfur powder, illite powder, and expanded vermiculite powder at 5 to 15 parts by weight; starch at 5 to 8 parts by weight; and an additive at 10 to 20 parts by weight.

Disclosed are a biodegradable coating composition for a mulching paper and a mulching paper. Out of these, the biodegradable coating composition for mulching paper to be coated on a surface of mulching paper comprises: spring water prepared by immersing a mineral substance powder that includes sericite powder and has a particle size distribution of 400 to 700 mesh in a container containing water for 10 to 20 days and thus dissolving a mineral component of a mineral substance in water at 45 to 72 parts by weight; charcoal powder having a particle size of 1,000 to 3,000 mesh at 3 to 8 parts by weight; calcium solution at 8 to 13 parts by weight; a filler including sulfur powder, illite powder, and expanded vermiculite powder at 5 to 15 parts by weight; starch at 5 to 8 parts by weight; and an additive at 10 to 20 parts by weight.

A heat-sealable barrier paper having a) a carrier substrate having a front side and a back side opposite the front side, b) optionally an interlayer comprising a binder and disposed on the front side of the carrier substrate, c) a first barrier layer comprising a crosslinked polysaccharide and disposed on the front side of the carrier substrate or, if there is an interlayer, on the interlayer, d) a second barrier layer, disposed on the first barrier layer and consisting of or comprising i) an acrylate copolymer and/or ii) a wax based on a vegetable oil, the use of a barrier paper for packaging products, a method for heat-sealing a barrier paper, and to a method for producing a barrier paper.

The present disclosure is drawn to primer compositions, which can include a binder including polyvinyl alcohol, starch nanoparticles, and a crosslinkable polyurethane dispersion. The primer competitions can also include a cationic salt and water.

The present disclosure is drawn to primer compositions, which can include a binder including polyvinyl alcohol, starch nanoparticles, and a crosslinkable polyurethane dispersion. The primer competitions can also include a cationic salt and water.

The invention relates to a heat-sealable paperboard comprising a paperboard substrate (1) comprising a first side and a second side, a first dispersion coating layer (2) on the first side of the paperboard substrate (1), and a second dispersion coating layer (3) on the first dispersion coating layer (2), wherein the first dispersion coating layer (2) comprises a latex and pigment and the second dispersion coating layer (3) comprises a polyolefin.