The present invention provides: a rubber composition having a good low heat generation property and is excellent in high elastic modulus and fracture resistance, and a tire using the rubber composition. The rubber composition contains a rubber component that contains a diene rubber, and the diene rubber contains a polymer (A) of a copolymer that has, in one molecule, a block moiety containing a urethane backbone segment and a block moiety containing a diene backbone segment.

The present invention relates to a crosslinkable composition comprising a polyol, a polyisocyanate crosslinker, a catalyst for catalysing the reaction between —OH groups of said polyol and —NCO groups of said crosslinker, a tertiary acid of formula RR′R″CCOOH (I), wherein each R, R′ and R″ group, independently, is an alkyl, alkenyl, aryl or aralkyl group containing at least one carbon atom, with the proviso that two or three of the R, R′ and R″ groups can be linked to form a ring structure and wherein the R, R′ and/or R″ groups can be substituted, and optionally, a complexing agent containing at least one —SH group, as well as its use for making coatings having improved application properties.

A process for preparing a polymeric membrane for materials used in crop production comprising: a) providing an aqueous dispersion of a polyurethane or polyurethane-urea elastomer comprising segments formed from the copolymer segment of Formula I
A.sup.1-[Y.sup.1].sub.n-L-[Y.sup.2].sub.q-A.sup.2  Formula I
wherein A.sup.1 is an end capping group; A.sup.2 is hydrogen or an end capping group; each [Y.sup.1].sub.n and [Y.sup.2].sub.q is independently selected from a polyether macrodiol, polycarbonate macrodiol, polyester macrodiol, and wherein at least one of [Y.sup.1].sub.n and [Y.sup.2].sub.q is a polyester macrodiol; L is a divalent linking compound independently selected from urethane, urea, carbonate, ester, and phosphonate; n is an integer of 2 to 50; q is an integer of 2 to 50; and b) spraying the aqueous dispersion onto materials to be used in crop production to form a polymeric membrane on the materials.

The present invention provides a synthetic leather including at least a base material (i), an adhesive layer (ii), and a skin layer (iii), wherein the adhesive layer (ii) is formed of an anionic urethane resin composition containing an anionic urethane resin (S) having an anionic group concentration of 0.25 mmol/g or less, water (T), and an anionic surfactant (U), and the skin layer (iii) is formed of a urethane resin composition containing a urethane resin (A), for which a raw material is reactive silicone (a1) having a functional group that reacts with an isocyanate group, and containing water (B). Preferably, the urethane resin (A) is an anionic urethane resin having an acid value of 20 mgKOH/g or less.

The present invention provides a synthetic leather including at least a base material (i), an adhesive layer (ii), and a skin layer (iii), wherein both the adhesive layer (ii) and the skin layer (iii) are formed of a urethane resin composition containing an anionic urethane resin having an anionic group concentration of 0.25 mmol/g or less, water, and an anionic surfactant. Preferably, the anionic surfactant is an alkylsulfosuccinate. The anionic group concentration of the anionic urethane resin is preferably within the range of 0.005 to 0.25 mmol/g and more preferably within the range of 0.01 to 0.2 mmol/g.

A polymer having a hydrophobic polymer chain derived from monomers of farnesene and other optional monomers, such as dienes and vinyl aromatics. The polymer also includes one or more terminal functional groups, such as an amino group, a glycidyl group, a carboxylic acid group, a (meth)acrylate group, a silane group, an isocyanate group, an acetoacetate group, a phenolic group, and a hydroxyl group. Functional groups, such as carboxylic acids, may also be grafted along the hydrophobic polymer chain. The polymer may be incorporated in curable compositions that optionally include one or more polymer resins having similar functional groups. Methods for preparing the curable polymer compositions are also provided. The curable or cured form of the polymer composition may be used in various products, such as a sealant, a coating, a caulk, an electric potting compound, a membrane, a sponge, a foam, an adhesive, or a propellant binder.

Polymers are disclosed that incorporate portions of secondary or tertiary polyamide segments connected with polyisocyanates. These polymers have enhanced matting properties. The enhanced matting properties are from creating an inherently matt surface from the polymer without the use of any separate fine particle size matting additives. Conventional matting agents such as fine particle size silica usually results in loss of physical properties such as haze development and porosity in the coating from the matting agent. Composites and hybrids of these polymers and other polyamides, polyurethane with vinyl polymers (acrylates) are also disclosed and claimed.

In a polyurethane dispersion obtained by water-dispersing a polyurethane resin, the polyurethane resin is a reaction product obtained by reacting at least a polyisocyanate component with an active hydrogen group-containing component containing an active hydrogen compound having an anionic group, a ratio of the total moles of a urethane group and a urea group is 1.5 mol or more with respect to 1 kg of the polyurethane dispersion, and the carbonate ion concentration is 700 ppm or less with respect to the polyurethane dispersion.

The polyurethane material is prepared from a polyol, butanediol, and an isocyanate. The protective cover is adapted to be attached along at least a part of a longitudinal edge of the wind turbine blade by adhesion of an inside of the protective cover to a surface of the longitudinal edge of the wind turbine blade. The protective cover is elongated in a longitudinal direction and has an at least substantially U-formed cross-section. The protective cover includes a central cover section extending in the longitudinal direction and two peripheral cover sections extending in the longitudinal direction at either side of the central cover section, respectively. The central cover section has a minimum thickness of at least 1 millimetre, and each peripheral cover section has a thickness decreasing from a maximum thickness of at least 1 millimetre to a minimum thickness of less than ½ millimetre.

Provided are a solid electrolyte composition containing an inorganic solid electrolyte having a conductivity of an ion of a metal belonging to Group I or II of the periodic table and a binder having a specific hydrocarbon polymer segment and a specific segment, a solid electrolyte-containing sheet in which the same solid electrolyte composition is used and a manufacturing method therefor, an all-solid state secondary battery and a manufacturing method therefor, a polymer having a specific hydrocarbon polymer segment and a specific segment, and a non-aqueous solvent dispersion thereof.