Blocked isocyanate terminated prepolymers with improved handling and processing properties are prepared from isocyanate terminated prepolymers with very low free isocyanate monomer content. The blocked prepolymers have lower melting points and/or viscosities compared to similar blocked isocyanate terminated having traditional, higher amounts of free isocyanate monomer. Curing compositions comprising the blocked prepolymers are prepared and cured to form polyurethane polymers with excellent properties.

The invention relates to novel aqueous coating compositions containing epoxy urethane (glycidyl carbamate) functional resin. An aqueous coating composition comprises a polyfunctional oligomer having at least two epoxy urethane functional groups and a polyalkylene oxide chain, an optional surfactant, and water. The aqueous coating compositions of the invention can be dispersed in water with or without added surfactants to form a dispersion containing no volatile organic solvent. The invention provides a method for making aqueous coating compositions containing epoxy urethane functional resin as well. Water-dispersible epoxy urethane compounds of the aqueous coating compositions are also provided.

A prepolymer composition containing an isocyanate group-terminated prepolymer is provided. The isocyanate group-terminated prepolymer contains a reaction product of a polyisocyanate component including 1,4-bis(isocyanatomethyl) cyclohexane and a polyol component including a first macrodiol and a second macrodiol. The first macrodiol has a hydroxyl group value of more than 56.1 mgKOH/g and less than 172 mgKOH/g. The second macrodiol has a hydroxyl group value of 374 mgKOH/g or more and 561 mgKOH/g or less. The ratio of the second macrodiol with respect to the total mol of the first macrodiol and the second macrodiol is 30 to 55 mol %.

The present invention relates to novel thermoplastic polyurethane (TPU) compositions that have crystalline chain ends. The TPU compositions of the invention can provide improved resiliency, lower surface free energy, and/or reduced stickiness, while maintaining other desirable physical properties. The present invention also provides the described TPU compositions that are further grafted with vinyl alkoxysilane moieties allowing for crosslinked networks of the TPU compositions. The present invention also provides plasticizer-free, very soft TPU compositions without the processing difficulties often associated with such materials. The invention further provides means of reducing the surface tension of a TPU composition which can allow for improved blend compositions, and means of crosslinking the described TPU compositions.