Described herein is a continuous process for producing polyurethane prepolymers in a residence time reactor with plug flow. Also described herein is a method of using these prepolymers for producing polyurethanes.

The present invention provides fire-retarded rigid polyurethane foam comprising the reaction product of polyol and isocyanate foam forming components and a dialkyl phosphorus-containing compound, namely a reactive mono-hydroxyl-functional dialkyl phosphinates, as flame retardant, serving as highly efficient reactive flame retardant in said rigid polyurethane foam.

A process can be used for preparing a crosslinked thermoplastic polyurethane (TPU), which is useful for producing injection molded products, extrusion products, films, and shaped bodies. Particularly, the crosslinked TPUs are useful for making outsole of footwear.

A rigid foam or composition allowing a rigid foam to be obtained made from polyurethane and/or polyisocyanurate. The rigid foam or composition includes polyols selected from polyester polyols and polyether polyols; the polyols include: 5 to 50% of a polyester polyol A by weight relative to the total weight of the polyols; and a polyol B selected from polyester polyols B and polyether polyols B. The polyester polyol A is of general formula Rx-Ry-Z-Ry′-Rx′ in which Z is a C3 to C8 alcohol sugar chosen from glycerol, sorbitol, erythritol, xylitol, araditol, ribitol, dulcitol, mannitol and volemitol. Ry and Ry′ are diesters of formula —OOC—Cn-COO— in which n is between 2 and 34, and Rx and Rx′ are identical or different C2 to C12 monoalcohols.

A water-based polyurethane resin and a method for manufacturing the same are provided. The method for manufacturing the water-based polyurethane includes: a preparation step of a prepolymer, a dilution step of the prepolymer, a water dispersion and chain extension step, and an acrylic synthesis step. The method further includes mixing polyol and polyisocyanate to obtain a prepolymer, and diluting the prepolymer by adding acrylic monomer in the prepolymer. In the water-based polyurethane resin, at least one of the polyhydric alcohol, polyisocyanate, and the acrylic monomer includes a compound with a cyclic structure.

Multifunctional resins suitable for use in coating and adhesive compositions derived from bio-based feedstocks are disclosed. The multifunctional resins are derived from a reaction mixture including (A) a polyol resin, (B) at least one compound having at least one of a dibasic carboxylic acid or derivative thereof, an anhydride, a caprolactone, a C═O source, a polyhydric alcohol, or a combination thereof, and (C) a catalyst.

The present disclosure relates to a surface protective film and a method for manufacturing an organic light emitting electronic device using the surface protective film.

A resin composition, a method for manufacturing the same and a use thereof are provided. The resin composition provides excellent thixotropy while having one or more excellent properties selected from thermal conductivity, adhesiveness, insulation properties, tensile characteristics, hardness and flame retardancy.

Described herein is a liquid electrostatic ink developer assembly comprising a developer roller having a surface coating, the surface coating comprising a polyurethane resin formed from a polyol; a hydroxyl-terminated polysiloxane; and a polyisocyanate. Also, described herein is a liquid electrostatic printing apparatus comprising the liquid electrostatic ink developer assembly.

The present disclosure relates to a cover window and a flexible display device including the same. The cover window according to an exemplary embodiment of the present disclosure includes a first layer having a first modulus, a second layer disposed on the first layer and having a second modulus smaller than the first modulus, and a third layer disposed on the second layer and having a third modulus equal to or larger than the first modulus, and in which the third layer includes a nanoparticle-polyurethane complex in which polyurethane is bonded with nanoparticles by a covalent bond. Therefore, the cover window of the present disclosure provides effects that the folding and rolling are possible with excellent surface characteristic and the restorability against the pressing and excellent optical property.