Provided are a waterborne polyurethane emulsion for ultra-thin polyurethane condoms having a low modulus and a high strength, and a method for preparing the emulsion, wherein the waterborne polyurethane emulsion comprises 15 to 18 parts by mass of a macromolecular diol, 4 to 6 parts by mass of a diisocyanate, 0.6 to 0.9 parts by mass of a hydrophilic chain extender, 0.4 to 0.8 parts by mass of a small-molecule chain extender, and the like. The prepared waterborne polyurethane emulsion is characterized by a low modulus, a high strength, and high resilience.

A bio-based resin obtained from a reaction mixture comprising a glycidyl ether component and a bio-based component comprising a fatty acid and a rosin acid, wherein the glycidyl ether component comprises at least two epoxide groups.

Embodiments of the present disclosure are directed towards formulated polyol compositions that include a sucrose propoxylated, a propoxylated homopolymer triol, and an amine-initiated polyether alcohol.

Embodiments of the present disclosure are directed towards formulated polyol compositions that include a sucrose propoxylated polyol, a polyether triol, and a propoxylated homopolymer triol.

Embodiments of the present disclosure are directed towards formulated polyol compositions that include a sucrose propoxylated polyol, a polyether triol, and a propoxylated homopolymer triol.

[Problem] To provide a thermoplastic polyurethane resin composition and a molded article that display low hardness and low rebound resilience as well as good moldability.

[Solution] The present invention relates to a thermoplastic polyurethane resin composition containing a thermoplastic polyurethane resin and a hydrogenated aromatic vinyl-based elastomer having a Shore A hardness of 90 or lower, a rebound resilience of 1-20%, and a product of the Shore A hardness and rebound resilience of 1300% or lower.

The invention relates to a thermoplastic polyurethane matrix resin composition, comprising at least one C.sub.3-8 alkane diol, at least one alkoxylated aromatic diol and at least one polyisocyanate. Furthermore, the present invention relates to a fiber-reinforced composite comprising a cured thermoplastic polyurethane polymer matrix according to the present invention and a fiber material. Moreover, a method for the manufacture of the fiber-reinforced composite according to the present invention and use of the composition or the fiber-reinforced composite in railway vehicles, automotive vehicles, aircraft vehicles, boats, space vehicles, motorbikes, bicycles, sporting goods, helmets, functional clothing, shoes, construction parts in bridges and buildings or wind turbine blades are described.

There is provided a heat-conductive flexible sheet that is formed of a non-silicone material and excellent in flexibility as well as durability such as heat-aging resistance, hydrothermal resistance, and thermal shock resistance, and a heat dissipation structure using the same, as well as a resin composition that exhibits excellent handleability in the kneading step in producing a heat-conductive sheet and can be suitably used as a binder material for a heat-conductive flexible sheet. A resin composition comprising a blocked urethane prepolymer, a predetermined epoxy compound, and a curing catalyst, the blocked urethane prepolymer being a reaction product of an aliphatic diisocyanate compound and a hydrogenated polybutadiene polyol having a hydroxy group at each of both ends, wherein the reaction product has at an end thereof an isocyanate group blocked with an aromatic hydroxy compound; a heat-conductive flexible sheet formed of a cured product of a mixed composition comprising the same and a heat-conductive inorganic filler; and a heat dissipation structure using the same.

Described herein are processes for producing cold-flexible polyurethane insulation, in which (a) polyisocyanates are mixed with (b) compounds having groups which are reactive to isocyanates, (c) blowing agents, (d) catalysts, (e) plasticizers and optionally (f) further additives to give a reaction mixture and the mixture is applied to a surface and cured to form insulation. Also described herein is a polyurethane insulation obtainable by a process described herein.

The present invention provides an aqueous polyurethane dispersion (PUD) comprising an amorphous polyester having a glass transition temperature (T.sub.g) as determined by differential scanning calorimetry of less than −30° C.; wherein the aqueous polyurethane dispersion (PUD) has a glass transition temperature (T.sub.g) as determined by differential scanning calorimetry (DSC) of 0° C. to 20° C. and a hard block content of greater than 50%. Coatings, adhesives, sealants, paints, primers and topcoats, made from the inventive aqueous polyurethane dispersion (PUD) pass detergent resistance testing according to the American Architectural Manufacturers Association's standard, AAMA 615-13, have a pencil hardness according to ASTM D3363 of at least 3H, and are particularly suited for use on low surface energy substrates such as vinyl and other surfaces including floors, windows, doors, window frames, door frames, window shutters, railing, gates, pillars, arbors, pergolas, trellises, gazebos, posts, fencing, pipes and fittings, wire and cable insulation, automobile components, credit cards, and siding.