A waterborne polyurethane dispersion is provided. The waterborne polyurethane dispersion comprises residual moiety of a hydroxy-terminated siloxane compound in the main chain and exhibits good anti-stickiness and/or wet color fastness while retaining superior mechanical properties. A laminated synthetic leather article prepared with said waterborne polyurethane dispersion as well the method for preparing the synthetic leather article are also provided.

A polyurethane, in particular a thermoplastic polyurethane, is obtainable or obtained by reacting at least a polyisocyanate composition and a polyol composition. The polyol composition contains at least one polyester diol or polyether diol, having a number-average molecular weight in the range from 500 to 3000 g/mol, and at least one polysiloxane having two terminal isocyanate-reactive functionalities selected from a thio group, a hydroxyl group, and an amino group. A process can be used for preparing this polyurethane, and a molded body containing the polyurethane is useful. Foam beads based on polyurethane can be obtained or obtainable from the polyurethane, and a process can be used for producing foam beads. Corresponding bead foams are useful.

Degradable polymers, including polyurethane and polyurethane-urea compositions, that can be used in aqueous, non-aqueous and dry hot environments as degradable polymers in oil, gas and other applications.

The present invention relates to a porous layer structure containing a base material and a polyurethane porous layer formed on the base material, wherein a moisture permeability A of the porous layer structure measured by JIS L1099 A-1 (calcium chloride method) is 2000 to 10000 g/(m.sup.2.Math.24h), a moisture permeability loss rate obtained by a predetermined formula from a moisture permeability B of the base material alone measured by JIS L1099 A-1 (calcium chloride method) and the moisture permeability A is 75% or less, and a peel strength at a bonding surface between the base material and the polyurethane porous layer is 0.7 kgf/inch or more.

The present invention relates to a coating composition, a coating system comprising the coating composition, a coating method and application of the coating system, and a product coated with the coating system. The coating composition comprises: (A) at least one aqueous polyurethane dispersion and/or one aqueous polyacrylate dispersion, wherein the aqueous polyurethane dispersion comprises at least one polyurethane polymer (a), wherein the polyurethane polymer (a) is obtained by a reaction comprising at least one polyurethane prepolymer (a1) and at least one isocyanate-reactive component (a2), wherein the polyurethane prepolymer (a1) is obtained by a reaction comprising the following components: (a1-1) at least one polyisocyanate having an isocyanate functionality of no less than 2, and (a1-2) at least one polyfunctional polyether polyol having a hydroxyl functionality of no less than 3, wherein the polyfunctional polyether polyol has an amount of 1 wt % to 20 wt %, based on the amount of the components for preparing the polyurethane prepolymer being 100 wt %, and (B) at least one crosslinking agent.

An easy-to-clean antiskid wear-resistant floor coating, a preparation method and an application method thereof are provided. The coating includes a coating component and a curing agent component, and the mass ratio of the coating component to the curing agent component is 100:45-70. The coating includes the following components: polyaspartic acid ester, polyester polyol or polyether polyol, a reactive catalyst, a solvent, a hydrophilic anti-staining agent, an ultraviolet absorbent, a heat stabilizer, elastic microspheres, a flame retardant, an mildew inhibitor, an anti-settling agent, defoaming agents, a leveling agent and pigments and fillers. The curing agent component includes isocyanate prepolymer and polyisocyanate. The easy-to-clean antiskid wear-resistant floor coating has good antiskid, wear-resistant, easy-to-clean and anti-contamination performances, can meet the antiskid wear-resistant protection requirements of the floor surface with higher decorative requirements, has a simple preparation method and process, and is beneficial to popularization.

An easy-to-clean antiskid wear-resistant floor coating, a preparation method and an application method thereof are provided. The coating includes a coating component and a curing agent component, and the mass ratio of the coating component to the curing agent component is 100:45-70. The coating includes the following components: polyaspartic acid ester, polyester polyol or polyether polyol, a reactive catalyst, a solvent, a hydrophilic anti-staining agent, an ultraviolet absorbent, a heat stabilizer, elastic microspheres, a flame retardant, an mildew inhibitor, an anti-settling agent, defoaming agents, a leveling agent and pigments and fillers. The curing agent component includes isocyanate prepolymer and polyisocyanate. The easy-to-clean antiskid wear-resistant floor coating has good antiskid, wear-resistant, easy-to-clean and anti-contamination performances, can meet the antiskid wear-resistant protection requirements of the floor surface with higher decorative requirements, has a simple preparation method and process, and is beneficial to popularization.

A polyurethane resin includes a reaction product of a raw material component containing a polyisocyanate, a macropolyol, a hydrophilic group-containing polyol, and a chain extender. The polyisocyanate is an alicyclic polyisocyanate. The macropolyol contains a plant-derived macropolyol. A biomass degree of the reaction product is 30% or more.

The present invention relates to a polyurethane, in particular a thermoplastic polyurethane, obtainable or obtained by reacting at least the components (i) to (ii): (i) a polyisocyanate composition; (ii) a polyol composition, comprising (ii.1) at least one polyester diol or polyether diol having a number-average molecular weight in the range from 500 to 3000 g/mol, (ii.2) at least one polysiloxane having two terminal isocyanate-reactive functionalities selected from the group consisting of thio group, hydroxyl group and amino group. The invention additionally relates to a process for preparing this polyurethane, to the use thereof, to a molded body comprising the polyurethane. Furthermore, the invention relates to foam beads based on polyurethane, obtained or obtainable from the polyurethane, to a process for producing foam beads and also to bead foams and to the use thereof.

The present invention relates to curable polyurethane polymers made from renewable materials and having polymerization accelerator groups built into the polymer. In particular hydroxylated oleaginous materials derived from plant oils, such as soybean oil, are used. These renewable materials may be formed into curable polyurethane polymers having different chemical functionalities and cure mechanisms.