A binder comprising isocyanate droplets in water, wherein the isocyanate droplets have an average droplet size of 500 microns or less, and the isocyanate droplets have shells comprising a biopolymer or a reaction product of a biopolymer and isocyanate. The biopolymer may be a biopolymer nanoparticle or cooked and chemically modified starch. Optionally, the binder may also include urea. The substrate for the binder may be wood, another lignocellulosic material, or synthetic or natural fibers. In particular examples, the binder is used to make no added formaldehyde wood composites including particle board and MDF.

The present invention relates to aqueous polyurethane dispersions comprising pentamethylene diisocyanate and to coatings obtainable therefrom. Said coatings, given a high density of urethane and urea groups, are softer than coatings that are obtained with polyurethane dispersions comprising other aliphatic diisocyanates, for example hexamethylene diisocyanate.

It is an object of the present invention to provide a coating composition that is capable of forming a coating film having good coating film appearance (e.g., smoothness) and design properties and having well-balanced coating film properties such as scratch resistance, and that allows its coating film to be cured by a simple method because of being thermally curable. A further object of the present invention is to provide a method for forming a coating film, which comprises forming a coating film using the coating composition of the present invention. More specifically, the present invention provides a coating composition containing at least one branched polymer selected from a dendrimer and a hyperbranched polymer, and an isocyanate compound having an isocyanate group and an alkylsilanol group, and having the number of isocyanate functional group of 1 or more.

A process for producing a thermoformable polymer/fiber composite using a fibrous substrate, an organic di- or polyisocyanate compound and a dispersion polymer.

Provided is a protective material that protects a wireless communication portion for wireless communication, comprising a substrate formed of a foam synthetic resin and a coating layer of a polyurea resin covering at least a front side surface of the substrate. The wireless communication device includes a wireless communication portion for wireless communication and a protective material.

A binder has at least one isocyanate and at least one biopolymer mixed with water. The biopolymer may be a biopolymer nanoparticle or cooked and chemically modified starch. Optionally, the binder may also include urea. The biopolymer and water are mixed, and the isocyanate is added to the mixture. The binder may have a viscosity that is suitable for being sprayed on a substrate to make a composite material, for example a viscosity of 700 cP or less or 500 cP or less at 40 C. The substrate may be wood, another lignocellulosic material, or synthetic or natural fibers. In particular examples, the binder is used to make no added formaldehyde wood composites including particle board and fiberboard. Alternatively, the binder may have a higher viscosity and be used to make plywood.

Fireworthy sealants may have a variety of compositions and be made by a variety of techniques. In certain implementations, a fireworthy sealant may include a body comprised of a cured, tacky, soft, deformable non-adhesive gel. The gel body may have an upper surface, a lower surface, and a perimeter, wherein the upper and lower surfaces of the gel body, in an uncompressed state, define a body thickness. The sealant may, in an uncompressed state, be dimensioned to fit in a first opening between a wall and an aircraft component surface and deformable when under compression to fit in a second opening, smaller than the first opening. The sealant may be flame retardant and produce low smoke density and low smoke toxicity.

A water- and oil-repellent agent contains cellulose nanofibers, a compound having at least one functional group of an oxazoline group, a carbodiimide group, an epoxy group and an isocyanate group, as a crosslinking agent, and a perfluoroalkyl compound.

The present invention provides a flexible wrapping material comprising a coolant gel composition comprising, i) at least one hydrophilic polyurethane prepolymer, ii) a coolant agent, iii) water, and iv) thermally conductive filler.

The invention provides a unique container combination comprised of a container equipped with a thermoset viscoelastomeric interfacing section which serves to confine items placed thereupon. The interfacing viscoelastomeric section may be chemically bonded to the container support or cohesively bonded thereto. The interfacing thermoset viscoelastomeric section adhesively immobilizes items placed thereupon while tenaciously clinging (chemically or adhesively) to the container supportive structure. Containers equipped with the thermoset viscoelastomeric section surprisingly create an aseptic environment especially adaptable to hygienic applications while also affording superior protection against impact damage.