A urethane compound (A) including units formed from (A1) an isocyanate and (A2) a long-chain alcohol represented by the formula HO—Z(Y—R).sub.n [wherein the R moieties are each independently —O—, —NH—, —O—C(═O)—, —NH—C(═O)—, —C(═O)—NH—, —O—C(═O)—NH—, —NH—C(═O)—O—, —NH—C(═O)—NH—, —NH—S(═O).sub.2—, —S(═O).sub.2—NH—, —NH—(CH.sub.2).sub.m—NH—S(═O).sub.2—, —NH—(CH.sub.2).sub.m—S(═O).sub.2—NH—, etc. (m is an integer of 1-5), Z is a direct bond or a di- or trivalent hydrocarbon group having 1-5 carbon atoms, and n is 1 or 2]. Also disclosed is a urethane mixture containing the urethane compound (A), and at least one selected from the polyisocyanate (A1), the long-chain alcohol (A2), a blocking agent (A3) and an alcohol compound (A4); an aqueous urethane composition; a method for producing the aqueous urethane composition; a method of treating a substrate; and a treated textile product.

The present invention is directed to eyectrochromic, supercapacitor yarns and the related fabrics. An electrochromic yarn formed by two interwind threads has been invented. The yarn is electrically isolated by a transparent, uncolored polymer. Each thread is the superposition of three concentric layers. The most internal one, the core, has the function of support and/or conductive layer, the second one is the eiectrochromic layer containing conductive nanoparticies, the third layer is a polymer dielectric blend. The yarns described above allows to generate electrochromic fabrics in which the colour can be varied by the application of small electric voltages fed by a battery with variable power supply controlled by a microprocessor connected to a smartphone via Bluetooth technology. A specific application on the smartphone allows to change the voltage supply to the fabrics, in order to get the desired chromatic change.

The present invention is directed to eyectrochromic, supercapacitor yarns and the related fabrics. An electrochromic yarn formed by two interwind threads has been invented. The yarn is electrically isolated by a transparent, uncolored polymer. Each thread is the superposition of three concentric layers. The most internal one, the core, has the function of support and/or conductive layer, the second one is the eiectrochromic layer containing conductive nanoparticies, the third layer is a polymer dielectric blend. The yarns described above allows to generate electrochromic fabrics in which the colour can be varied by the application of small electric voltages fed by a battery with variable power supply controlled by a microprocessor connected to a smartphone via Bluetooth technology. A specific application on the smartphone allows to change the voltage supply to the fabrics, in order to get the desired chromatic change.

A belt with a tensile cord embedded in an elastomeric body, having an adhesive composition impregnating the cord and coating the fibers. The adhesive composition is the reaction product of a polyisocyanate and a polyol, or a polyurethane prepolymer derived therefrom, and a polyamine curative and optionally additional polyol, and with optionally added plasticizer. At least one of the polyisocyanate, the prepolymer, and the polyamine are blocked with a blocking agent. The belt body may be of cast polyurethane, vulcanized rubber, or thermoplastic elastomer. The cord may have an adhesive overcoat.

A belt with a tensile cord embedded in an elastomeric body, having an adhesive composition impregnating the cord and coating the fibers. The adhesive composition is the reaction product of a polyisocyanate and a polyol, or a polyurethane prepolymer derived therefrom, and a polyamine curative and optionally additional polyol, and with optionally added plasticizer. At least one of the polyisocyanate, the prepolymer, and the polyamine are blocked with a blocking agent. The belt body may be of cast polyurethane, vulcanized rubber, or thermoplastic elastomer. The cord may have an adhesive overcoat.

Articles, such as garments, including films comprising dried aqueous polyurethane dispersions are disclosed, whereby the garment has an altered stress which is exhibited during wear of the garment and/or has one or more sections of waterproof or water-resilient fabric. The film may be bonded to the fabric of the article to provide a fabric or film laminate.

One or more embodiments of the present invention provides a process for the preparation of a coating or layer on a substrate, in which process a mixture comprising one or more polyurethane dispersions, one or more flame retardants, which can be halogen-based or halogen-free, one or more foam stabilizers and optionally one or more crosslinkers is mechanically foamed and then applied on a substrate as a foam, optionally followed by adding flocking fibres, and subsequently dried, wherein the foam has flame retardant properties and remains present as a stable pressure resistant dried foam.

One or more embodiments of the present invention provides a process for the preparation of a coating or layer on a substrate, in which process a mixture comprising one or more polyurethane dispersions, one or more flame retardants, which can be halogen-based or halogen-free, one or more foam stabilizers and optionally one or more crosslinkers is mechanically foamed and then applied on a substrate as a foam, optionally followed by adding flocking fibres, and subsequently dried, wherein the foam has flame retardant properties and remains present as a stable pressure resistant dried foam.

The present invention provides an anti-pilling wool fabric with a coating having pilling resistance and resistance to fiber loss from fabric surface. The coating is formed by a coating formulation including at least two diisocyanates, at least two catalyst, a water dispersing agent, a buffer and water, which provides a polycarbodiimide crosslinker reactive to the relative less reactive groups on polypeptide of the wool fabric and promotes crosslinking between polypeptides of the wool fabric under relatively mild processing conditions so as to enhance mechanical strength of the wool fabric whilst no significant effect of the original finish merino wool fabric and/or garment and fiber loss from fabric surface are observed, compared to conventional treatment methods on wool fabric. A corresponding coating formulation and method of fabricating the anti-pilling wool fabric are also provided. The present invention is applicable to finished wool fabric which fibers are already with colorant(s), and/or dye(s), and/or reactive dye(s).

The present disclosure generally provides topically applicable insect repelling compositions, and in some embodiments, topically applicable insect repelling and UV protecting compositions. The compositions comprise a polymerization product of a polyol, a diisocyanate and at least one insect-repelling compound. The resulting polymers advantageously bond superficially to skin or hair, thereby localizing repellents and preventing systemic absorption. While not being bound by theory, it is believed that the localization of repellents to the surface of the skin renders them safer, wherein such repellents are not vaporized and do not have a disagreeable odor. The repellents advantageously interact with tactile insect activity, thereby preventing parasitic activity, such as drawing blood or the communication of pathogens.