A polyurethane resin having an anionic group and a polyalkylene oxide in a side chain thereof is obtainable by reacting a polyester polyol, a polyether diol, a polyol containing an anionic group, and a polyisocyanate, and the polyester polyol is obtained by reacting an aromatic polycarboxylic acid and a polyol. The polyurethane resin can be used as binder in an ink jet ink and provides excellent scratch and solvent resistance of printed images.

The present disclosure relates to a dispersant having the following structure of Chemical Formula 1, a light emitting film in which the dispersant is adsorbed on a surface of an inorganic luminescent particle, and a light emitting diode and a light emitting device in which the light emitting film is applied into an emitting material layer and/or a color conversion film. The dispersant enables the inorganic luminescent particle to have excellent dispersion property and optical properties, and thus the light emitting diode and the light emitting device can its luminous efficiency and luminous lifetime.

##STR00001##

Suggested is a urea urethane with improved rheological properties, obtainable or obtained according to a process encompassing or consisting of the following steps: (a) providing a monohydroxyl compound; (b) providing a diisocyanate compound; (c) reacting said monohydroxyl compound and said diisocyanate compound to form a pre-polymer; (d) reacting said pre-polymer with a diamine compound,
Wherein said pre-polymer and said diamine are reacted in the presence of a surfactant.

A radiation curable polyurethane resin includes an ionic group, a polyalkylene oxide in a side chain thereof, and a (meth)acrylate or (meth)acrylamide having a hydroxyl functional group. The polyurethane resin is obtainable by reacting a polyester polyol, a polyether diol, a polyol containing an ionic group, a (meth)acrylate or (meth)acrylamide having a hydroxyl functional group, and a polyisocyanate. The polyester polyol is obtained by reacting a polycarboxylic acid and a polyol. The radiation curable polyurethane resin can be used as binder in an aqueous ink jet ink.

Provided is a prepreg including: a urethane (meth)acrylate that is a reaction product of a polyisocyanate compound comprising a polymethylene polyphenyl polyisocyanate as an essential component with a hydroxyl group-containing compound comprising, as an essential component, a compound having a hydroxyl group and a (meth)acryloyl group; a polymerization initiator; and carbon fibers. The prepreg is excellent in workability and molding property and can form molded products excellent in various physical properties such as interlayer shear strength and heat resistance. Thus, the prepreg is suitable for use in various molded articles including automotive members.

A polyurethane resin having an anionic group and a polyalkylene oxide in a side chain thereof is obtainable by reacting a polyester polyol, a polyether diol, a polyol containing an anionic group, and a polyisocyanate, and the polyester polyol is obtained by reacting an aromatic polycarboxylic acid and a polyol. The polyurethane resin can be used as binder in an ink jet ink and provides excellent scratch and solvent resistance of printed images.

A compound having the formula:

##STR00001## wherein n, y, R.sub.1 and R.sub.2 are defined herein, and others, methods of making of and using, and compositions made thereby which have an antimicrobial resistance effect are described.

Provided is a medical composition capable of imparting biocompatibility to the surface of a medical instrument etc. and application of the medical composition. In an embodiment of the present invention, the medical composition contains a urethane resin, and the urethane resin has urethane bonds in the main chain and a polyoxyethylene structure in the main chain and/or side chains. In another embodiment of the present invention, the urethane resin has a structural unit derived from a polycarbonate polyol and a structural unit derived from an aliphatic isocyanate and also has at least one urea bond.

Suggested is a urea urethane with improved rheological properties, obtainable or obtained according to a process encompassing or consisting of the following steps: (a) providing a monohydroxyl compound; (b) providing a diisocyanate compound; (c) reacting said monohydroxyl compound and said diisocyanate compound to form a pre-polymer; (d) reacting said pre-polymer with a diamine compound,
Wherein said pre-polymer and said diamine are reacted in the presence of a surfactant.

Provided is a prepreg including: a urethane (meth)acrylate that is a reaction product of a polyisocyanate compound comprising a polymethylene polyphenyl polyisocyanate as an essential component with a hydroxyl group-containing compound comprising, as an essential component, a compound having a hydroxyl group and a (meth)acryloyl group; a polymerization initiator; and carbon fibers. The prepreg is excellent in workability and molding property and can form molded products excellent in various physical properties such as interlayer shear strength and heat resistance. Thus, the prepreg is suitable for use in various molded articles including automotive members.