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 δ) 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 δ) 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 δ) 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 δ) are obtained by measuring a dynamic viscoelasticity of the polyurethane under specific conditions.

A biodegradable cellulose fiber-based substrate, at least one side of which is coated with a release coating including: a) at least one water-soluble polymer (WSP) containing hydroxyl groups, and 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. The biodegradable substrate is certified biodegradable in accordance with EN 13432. A method of production thereof is also disclosed.

A biodegradable cellulose fiber-based substrate, at least one side of which is coated with a release coating including: a) at least one water-soluble polymer (WSP) containing hydroxyl groups, and 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. The biodegradable substrate is certified biodegradable in accordance with EN 13432. A method of production thereof is also disclosed.

A composition formed from ingredients comprising: an epoxy; a polyvinyl phenol; a cross-linking agent; an epoxy silane; and a solvent is disclosed. A printable medium and other devices made from the composition are also disclosed.

A composition formed from ingredients comprising: an epoxy; a polyvinyl phenol; a cross-linking agent; an epoxy silane; and a solvent is disclosed. A printable medium and other devices made from the composition are also disclosed.

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 μm. 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 μm. 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.

A novel material is provided herein which is suitable for use in a precursor of a polymer coating material that coats a polymer on a surface of a base material to provide the base material with surface modification and/or functionality assignment. A composite material characterized in that a compound having a polymerization initiation site containing a halogen group is incorporated in a crosslinked structure comprising a catechol derivative or a phenol derivative represented by the following formula (I). In the formula (I), R may be interrupted by an oxygen molecule and represents a hydrocarbon group with 2 to 20 carbons that has at least one double bond site, and A represents a hydrogen atom, a hydroxyl group, or an alkoxy group with 1 to 20 carbons. ##STR00001##