Provided is a curable composition including a urethanization reaction product of a branched polyolefin diol; at least one selected from an isocyanurate product, an adduct product, and a biuret product, of an aliphatic diisocyanate having 6 to 10 total carbon atoms; and a hydroxy saturated C.sub.1 to C.sub.4 alkyl (meth)acrylate. Also provided are a method for producing the curable composition, and a specific curable compound included in the curable composition.

A materials kit for three-dimensional (3D) printing can include a powder bed material comprising thermoplastic polyurethane particles and a fusing agent including a radiation absorber to selectively apply to the powder bed material. The thermoplastic polyurethane particles can have an average particle size from about 20 μm to about 120 μm and a melting temperature of from about 100° C. to about 250° C., wherein the thermoplastic polyurethane particles include polyurethane polymer strands having an average of about 10 wt % to about 30 wt % hard segments based on a total weight of the thermoplastic polyurethane particles. The hard segments can include a symmetrical aliphatic diisocyanate and a symmetrical aliphatic chain extender that are polymerized into the thermoplastic polyurethane particles.

A polymeric material includes a polyisobutylene-polyurethane block copolymer. The polyisobutylene-polyurethane block copolymer includes soft segments, hard segments, and end groups. The soft segments include a polyisobutylene diol residue. The hard segments include a diisocyanate residue. The end groups are bonded by urea bonds to a portion of the diisocyanate residue. The end groups include a residue of a mono-functional amine.

Disclosed herein are tread rubber compositions containing a specified polyurethane, tires containing a tread made from the rubber compositions, and related methods of improving the wet and dry traction of a tire tread by using the polyurethane-containing rubber compositions. The polyurethane includes a saturated hydroxy-functionalized polydiene segment as diol.

A polycarbodiimide compound, which is a reaction product of a polycarbodiimide (a) having an isocyanate group at both ends, obtained by polymerizing at least one selected from aliphatic diisocyanate and alicyclic diisocyanate, and a polymer (b) that is a polymer of at least one selected from butadiene and isoprene or a hydrogenated product thereof and has a functional group capable of reacting with an isocyanate group.

A binder system, containing a special polyol mixture as a resin component, said polyol mixture containing at least one polyester based on a fatty acid dimer, a fatty acid trimer or the alcohols derived therefrom, and at least one polyisocyanates as a resin component and/or a NCO-terminated polyurethane prepolymer. The binder system can be used as an adhesive/sealing material, in particular as an adhesive for gluing various substrates.

Provided is, for example, a curable composition including: a curable compound having, in a molecule, a branched polyolefin structure, a (meth)acryloyl group, and an isocyanate group; and an alicyclic (meth)acrylate monomer having, in a molecule, a cycloalkyl structure and a (meth)acryloyl group.

Provided is a curable composition including a urethanization reaction product of: a branched polyolefin diol; at least one selected from an isocyanurate product, an adduct product, and a biuret product, of an aliphatic diisocyanate having 6 to 10 total carbon atoms; and a hydroxy saturated C.sub.1 to C.sub.4 alkyl (meth)acrylate. Also provided are a method for producing the curable composition, and a specific curable compound included in the curable composition.

A materials kit for three-dimensional (3D) printing can include a powder bed material comprising thermoplastic polyurethane particles and a fusing agent including a radiation absorber to selectively apply to the powder bed material. The thermoplastic polyurethane particles can have an average particle size from about 20 μm to about 120 μm and a melting temperature of from about 100° C. to about 250° C., wherein the thermoplastic polyurethane particles include polyurethane polymer strands having an average of about 10 wt % to about 30 wt % hard segments based on a total weight of the thermoplastic polyurethane particles. The hard segments can include a symmetrical aliphatic diisocyanate and a symmetrical aliphatic chain extender that are polymerized into the thermoplastic polyurethane particles.

A curable composition comprises a blocked isocyanate compound (PhI) having a plurality of isocyanate groups each protected by phenols (Ph), and an epoxy compound (E) having a plurality of epoxy groups. The curable composition does not contain an isocyanate scavenger which may react with the isocyanate groups nor an epoxy scavenger which may react with the epoxy groups.