The present disclosure provides for a polyurethane elastomer foam formed by reacting a mixture that includes 60 to 50 weight percent (wt. %) of a polyol formulation and 40 to 50 wt. % isocyanate pre-polymer (wt. % based on the total weight of the mixture). The polyol formulation includes 85 to 92 wt. % of a polytetramethylene ether glycol (PTMEG) with a weight average molecular weight of 1900 to 2100 and a hydroxyl number of about 53 to about 60; 4 to 10 wt. % of monoethylene glycol; a blowing agent; a catalyst; and a surfactant (wt. % values for the polyol formulation based on the total weight of the polyol formulation). The isocyanate pre-polymer includes 55 to 70 wt. % of a isocyanate blend having at least 90 wt. % of 4,4-diphenylmethane diisocyanate; and 30 to 45 wt. % of the PTMEG, where the isocyanate pre-polymer has an isocyanate content of 16 to 21 wt. % based on the total weight of the isocyanate pre-polymer, and the polyurethane elastomer foam has a ball rebound of at least 50% measured according to ASTM D3574 on a 10 mm thickness test plate.

This technology relates to an integrated article that includes (a) a flexible foam region and (b) a non-foam region. The flexible foam region and the non-foam region are each made of a polyurethane composition. In some embodiments, the flexible foam region is a midsole, and wherein the non-foam region is an outsole. The flexible foam region is made from a flexible polyurethane injection molded foam. The non-foam region is made from a non-foamed polyurethane, which may be extruded or thermoformed. The invention relates to this integrated article, as well as the methods of making and using the same.

The present invention relates to a hybrid material comprising a matrix of polyurethane and foamed particles of thermoplastic polyurethane comprised therein and also a process for producing such hybrid materials and the use of these hybrid materials as bicycle saddles, upholstery and shoe soles.

A curable composition is provided, comprising: (A) a binder composition; and (B) a polysiloxane resin comprising aromatic functional groups and terminal active hydrogen groups. The composition may be used to prepare articles of manufacture and coated articles, such as footwear components. The composition may additionally be used to mitigate dirt build-up on a substrate.

A process comprising, consisting of, or consisting essentially of: forming a reaction mixture containing at least one polyisocyanate and an isocyanate-reactive compound comprising at least one alkoxylated triazine-arylhydroxy-aldehyde condensate composition wherein the alkoxylated triazine-arylhydroxy-aldehyde condensate composition is a reaction product of a triazine-arylhydroxy-aldehyde condensate and at least one alkylene carbonate, is disclosed.

A polyurethane foam, a polyurethane/polyorganosiloxane foam, and a polyurethane foam polyurethane/polyorganosiloxane foam material are disclosed and described herein. The materials are formed in the presence of a polymerization reaction initiator (an isoprenoid compound), and a polymerization reaction accelerator. The polyurethane foam is formed from an isocyanate and a polyol. The polyurethane foam polyurethane/polyorganosiloxane foam material comprises the polyurethane foam which is cross-linked to the polyurethane backbone to a polyurethane/polyorganosiloxane foam. Optional gelling agents, emulsification control agents, reinforcement fillers, cross-linkers, reinforcement polymers, rubber reinforcers, silk proteins, emollients, stabilizers and colorants are also described. The polyurethane and polyurethane-polyorganosiloxane foam materials exhibit a high degree of flexibility, resilience and excellent impact absorption.

A polymeric blend contains a polyether block amide and a thermoplastic polymer, where the polyether block amide is based on a subunit 1 and a subunit 2. Subunit 1 is composed of at least one linear aliphatic diamine containing 5 to 15 carbon atoms and at least one linear aliphatic dicarboxylic acid containing 6 to 16 carbon atoms. Subunit 2 is composed of at least one polyether diol containing at least 3 carbon atoms per ether oxygen and primary OH groups at the chain ends. The sum total of the carbon atoms from diamine and dicarboxylic acid is an odd number and is 19 or 21 carbon atoms. The number-average molar mass of the subunit 2 is 200 to 900 g/mol. The thermoplastic polymer is selected from an ethylene/vinylene acetate, a thermoplastic polyester elastomer, a polyolefin elastomer, thermoplastic polyurethane, or any mixture thereof.

A polyurethane resin and a method for manufacturing the same are provided. The method includes the following steps: mixing a polyester polyol, a polyether polyol, a first chain extender, diisocyanate, and a mixed solvent for polymerization, so as to obtain a prepolymer; and adding a second chain extender into the prepolymer for chain extension, so as to obtain the polyurethane resin. The mixed solvent includes diethylformamide and methyl ethyl ketone, and a mass ratio of the diethylformamide to the methyl ethyl ketone in the mixed solvent ranges from 0.45 to 1.80. Based on a total weight of the polyurethane resin being 100 wt %, a total added amount of the first chain extender and the second chain extender ranges from 0.9 wt % to 2.5 wt %.

A polyurethane elastomer, which can be a foam, generated from (a) an organic diisocyanate, (b) a polyester resin, (c) a chain extender comprised of a polyhydric alcohol, (d) a crosslinker, (e) a plasticizer, (f) a surfactant, (g) a bio-additive, (h) a blowing agent, and (i) an optional dye; and optionally where the elastomer has, for example, a hardness value of, for example, from about 15 Asker C to about 60 Asker C, a tensile strength of from about 1 MPa to about 10 MPa, a resilience of from about 30 percent to about 60 percent, an elongation at break of from about 150 percent to about 700 percent, and a tear strength from about 2 Newtons/millimeters to about 4 Newtons/millimeters, and which elastomers can be selected for footwear.

The invention relates to a foamed composition comprising a thermoplastic copolyester elastomer in an amount of between 70 to 99 wt % and a plasticizer in an amount of between 1 to 30 wt % based on the total amount of the composition and articles comprising the foamed composition, as well as a process for preparing such foamed composition.