A cellulose fiber-based substrate, at least one side of which is coated with an aqueous mixture composed of: a) at least one water-soluble polymer (WSP) containing hydroxyl groups, 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, c) at least one crosslinking agent. A method of production and use thereof.

A cellulose fiber-based substrate, at least one side of which is coated with an aqueous mixture composed of: a) at least one water-soluble polymer (WSP) containing hydroxyl groups, 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, c) at least one crosslinking agent. A method of production and use thereof.

Disclosed are coating material compositions including (i) at least one polyol component (A), (ii) at least one crosslinking agent component (B) having groups reactive toward hydroxyl groups of component (A), (iii) at least one polyamide component (P1) in which the acid amide groups are connected by a saturated, aliphatic hydrocarbyl radical having 6 to 10 carbon atoms. Component (P1) is used in particulate form in which a size distribution (D.sub.50) is 20 to 100 m. The coating material compositions further include (iv) at least one polycarboxamide component (P2) possessing the following structural formula

##STR00001##

in which s is 1, 2 or 3, t is 0 or 1, s+t is 2 or 3, R is a specific (s+t)-valent organic radical, and at least one of the radicals R.sup.1 and R.sup.2 carries at least one hydroxyl group. Also disclosed are methods of producing the coating material compositions.

Disclosed are coating material compositions including (i) at least one polyol component (A), (ii) at least one crosslinking agent component (B) having groups reactive toward hydroxyl groups of component (A), (iii) at least one polyamide component (P1) in which the acid amide groups are connected by a saturated, aliphatic hydrocarbyl radical having 6 to 10 carbon atoms. Component (P1) is used in particulate form in which a size distribution (D.sub.50) is 20 to 100 m. The coating material compositions further include (iv) at least one polycarboxamide component (P2) possessing the following structural formula

##STR00001##

in which s is 1, 2 or 3, t is 0 or 1, s+t is 2 or 3, R is a specific (s+t)-valent organic radical, and at least one of the radicals R.sup.1 and R.sup.2 carries at least one hydroxyl group. Also disclosed are methods of producing the coating material compositions.

The present invention, in an aspect, provides a resin composition that contains a vinyl polymer and a smectite with partially immobilized lithium.

The present invention, in an aspect, provides a resin composition that contains a vinyl polymer and a smectite with partially immobilized lithium.

A leather finishing agent that can enhance the mechanical properties and ultraviolet resistance of leather and a preparation method thereof are disclosed that relate to the field of leather additives. It was prepared by using polyphenol as raw material, hexamethylene tetramine as auxiliary agent, and a protonic acid as solvent, then heating and adding water for hydrolysis and dispersion. The method has the advantages of low production cost, simple process, high preparation efficiency, green production process and environmental protection. The leather finishing agent can be used in the finishing section after leather tanning. After finishing, the mechanical properties of the leather were significantly enhanced, and its UV resistance was also significantly improved.

A leather finishing agent that can enhance the mechanical properties and ultraviolet resistance of leather and a preparation method thereof are disclosed that relate to the field of leather additives. It was prepared by using polyphenol as raw material, hexamethylene tetramine as auxiliary agent, and a protonic acid as solvent, then heating and adding water for hydrolysis and dispersion. The method has the advantages of low production cost, simple process, high preparation efficiency, green production process and environmental protection. The leather finishing agent can be used in the finishing section after leather tanning. After finishing, the mechanical properties of the leather were significantly enhanced, and its UV resistance was also significantly improved.

An object of the present disclosure is to provide a novel golf ball having excellent spin performance on approach shots. The present disclosure provides a golf ball comprising a paint film, wherein a base resin constituting an outermost layer of the paint film is a polyurethane obtained by a reaction between (A) a polyol composition containing a polyol having a side chain and (B) a polyisocyanate composition, a loss modulus (E) at a temperature of ?50? C. is 2.0?10.sup.8 Pa or more, and a loss tangent (tan ?) has a peak with a peak height of 0.1 or more and 0.5 or less in a temperature range of ?60? C. or more and ?20? C. or less, wherein the loss modulus (E) and the loss tangent (tan ?) are obtained by measuring a dynamic viscoelasticity of the polyurethane under specific conditions.

An object of the present disclosure is to provide a novel golf ball having excellent spin performance on approach shots. The present disclosure provides a golf ball comprising a paint film, wherein a base resin constituting an outermost layer of the paint film is a polyurethane obtained by a reaction between (A) a polyol composition containing a polyol having a side chain and (B) a polyisocyanate composition, a loss modulus (E) at a temperature of ?50? C. is 2.0?10.sup.8 Pa or more, and a loss tangent (tan ?) has a peak with a peak height of 0.1 or more and 0.5 or less in a temperature range of ?60? C. or more and ?20? C. or less, wherein the loss modulus (E) and the loss tangent (tan ?) are obtained by measuring a dynamic viscoelasticity of the polyurethane under specific conditions.