Provided is a conductive paste which makes it possible to form a conductive layer having excellent conductivity even when spherical copper powder having a small particle diameter is used. Disclosed is a conductive paste containing a conductive filler and a binder resin. In this conductive paste, when a first coating film is prepared by coating a first paste containing 100 parts by weight of the binder resin and 20 parts by weight of the conductive filler on a first substrate at a coating amount of 100 g/m.sup.2 and drying and curing the binder resin, the first coating film has a light transmittance of 20% or more, and when a second coating film is prepared by coating a second paste containing the binder resin but not containing the conductive filler on a second substrate at a coating amount equivalent to a dry solid content of 55 g/m.sup.2 and drying and curing the binder resin, a film thickness t m of the second coating film and a shrinkage ratio % obtained by the following formula (1) satisfy a relationship of the following formula (2): =(1(arc length of a surface of the second coating film after drying and curing)/(arc length of a second substrate after drying and curing))100 Formula (1) and (5t+50)10.sup.3 Formula (2).

An object of the present invention is to provide a golf ball comprising a paint film having improved abrasion resistance without substantially lowering the spin performance. The present invention provides a golf ball comprising a golf ball body and a paint film formed on a surface of the golf ball body, wherein the paint film contains a resin fine particle in an amount of less than 10 parts by mass with respect to 100 parts by mass of a base resin thereof, the base resin of the paint film is a polyurethane, and the resin fine particle contains a polyrotaxane component having a cyclodextrin, a linear molecule penetrating the cyclic structure of the cyclodextrin in a skewering manner, and a blocking group located at both terminals of the linear molecule to prevent disassociation of the cyclodextrin, wherein at least a part of hydroxyl groups of the cyclodextrin is modified with a caprolactone chain via a OC.sub.3H.sub.6O group.

A DL microcapsule is formed that has a core-double layer shell structure with a liquid diisocyanate comprising molecule core and a double layer shell. The double layer shell has an inner layer comprising a polyurea (PU) and an outer layer comprising a poly(urea formaldehyde) foam (PUF). A self-healing coating is formulated from a multiplicity of DL microcapsules in a polymeric matrix. A polymer matrix can be formed by the polyaddition of an epoxy resin. A self-healing coated substrate is formed by applying the self-healing coating precursor that combines DL-microcapsules with an uncured polymeric resin as a dispersion on a substrate and curing the polymeric resin. The self-healing coated substrate is capable of resisting corrosion when abraded. The substrate can be any metal substrate, for example an iron or steel substrate. The polymeric resin can be an epoxy resin.

The present invention relates to a process for the production of a mineral filler product comprising a step of dry grinding a calcium carbonate-containing material in the presence of an agent being a polyol. The mineral filler product according to the present invention was found to have a reduced moisture pickup as compared to prior art products.

To provide thermal spray slurry capable of forming a thermal sprayed coating having a high adhesion strength on a thermal spray target surface of a substrate, disclosed is thermal spray slurry for forming a thermal sprayed coating on the thermal spray target surface by spraying the thermal spray slurry on the thermal spray target surface of the substrate, the thermal spray slurry containing: thermal spray particles having a 50% particle diameter D50 equal to or larger than 1 m and equal to or smaller than 5 m in volume-based cumulative particle diameter distribution; and a dispersion medium in which the thermal spray particles are dispersed. In addition, a ratio D10/Ra between a surface roughness Ra (unit: m) of the thermal spray target surface and a 10% particle diameter D10 (unit: m) of the thermal spray particles in the volume-based cumulative particle diameter distribution satisfies a formula 0.4<D10/Ra0.9.

A composition for increasing adhesion between two surfaces that are in traction, sliding or rolling-sliding contact with each other is provided. The composition comprises one or more than one first component, where each of the one or more than one first component has a Mohs hardness value of equal to or greater than 7, and one or more than one organic rheology additive. The one or more than one first component and the one or more than one organic rheology additive are present in a ratio from about 90:10 to about 99.9:0.1 (wt/wt). The composition does not comprise water. A method of increase adhesion between two steel surfaces in sliding-rolling contact is also described. The method involves applying the composition to the rail surface at a rate sufficient to increase the adhesion between the two steel surfaces.

Provided herein are compositions and methods for the use of anhydrous tricalcium phosphate as a multifunctional additive to coatings, such as paint systems, to provide a coating that provides improved solar reflectance and thermal emittance properties, improved dirt pick-up resistance, and enhanced corrosion protection.

A solid composition, of use in particular on any type of metallic substrate as a hydrophobic, electrically conductive, metal-adhesive coating, comprises at least (% by weight of composition): as conductive filler, from 75% to 95% of electrically conductive microparticles, the weight-average size of which is between 1 m and 100 m; and as hydrophobic, metal-adhesive polymer matrix, from 5% to 25% of a polymer matrix denoted P, comprising at least 2 different polymers P1, a thermoplastic fluoropolymer, the weight-average molecular weight of which, denoted Mw, is between 100 000 and 1 000 000 g/mol; and P2, a thermoset resin, the glass transition temperature of which is between 30 C. and 150 C. A steel bipolar plate, especially made of stainless steel, for a fuel cell, may be coated with such a composition.

Disclosed herein in is a radiative cooling formulation comprising a first component with >55% reflectance in a wavelengths range of 0.3 to 2.5 microns, a second component with >0.85 peak thermal emissivity in a window range of 4 to 35 microns, and a third component to mechanically bind together a mixture of the first and second components.

A method of forming a digital print on a surface (2) by applying powder of dry ink (15) including colourants (7) on the surface, bonding a part of the dry ink (15) powder to the surface (2) by a digital heating print head (80) such that the digital print is formed by the bonded dry ink colourants (7) and removing non-bonded dry ink (15) from the surface (2).