The present disclosure is directed to a solvent borne non-isocyanate curable two-components coating composition, comprising: component a) a film-forming resin composition comprising a resin component having carboxyl functional groups and hydroxyl functional groups and having an acid value of at least 23 mg KOH/g resin; and component b) an aromatic polycarbodiimide having two or more —N═C═N— moieties, wherein the carboxyl functional groups of the resin component and the —N═C═N— moieties present in the aromatic polycarbodiimide have a molar ratio in the range of 1:2 to 2:1, preferably in the range of 1:1 to 2:1; and wherein the coating composition comprises less than 1 wt % of water relative to the total weight of the coating composition. The present disclosure is also directed to an article comprising a substrate and a coating disposed thereon formed by the above solvent borne non-isocyanate curable two-components coating composition.

The invention relates to polyurethane and/or polyorganosiloxane copolymer compounds and salts thereof that contain carbodiimide moieties of formula [I]. Further, the invention relates to a process for the preparation thereof, to precursors for the preparation thereof, and to reactive compositions which contain such precursors and to their use for treating or finishing fibers, including hair and wool, and for permanently finishing, treating, impregnating textiles and leather or synthetic leather and other fibrous materials, and sheet materials and paper.

A compound having an uretonimine group contains, as a structural unit, a carbodiimide compound derived from at least one of an aliphatic diisocyanate and an aromatic diisocyanate, and also contains an isocyanate compound as a structural unit, wherein the residue obtained by removing an isocyanate group from the isocyanate compound and the residue obtained by removing a carbodiimide group from the carbodiimide compound are different.

The present invention is directed to a powder coating composition including a hydroxy-functional polymer, a carbodiimide crosslinker, and an organometallic catalyst. The present invention is also directed to a substrate at least partially coated with the powder coating composition. The present invention is also directed to a method of applying a coating composition to a substrate including: applying the powder coating composition to a substrate and heating the powder coating composition to form a coating over the substrate.

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 invention provides an aqueous polyurethane dispersion (PUD) which comprises (1) a polyester polyurethane dispersion which is free of solubilizing agents having carboxyl functionality and (2) a polycarbodiimide dispersion. These dispersions have stabilized performance properties. In addition, the polycarbodiimide dispersion has been found to restore the physical performance of an aqueous polyester polyurethane dispersion in which the performance has degraded due to the polyester component.

A method for producing a carbodiimide compound, comprising a carbodiimide production step of reacting an aliphatic tertiary isocyanate compound (A) in the presence of an inorganic alkali metal compound (B) and at least one of a phase transfer catalyst (C), a compound (D-1) represented by general formula (2-1), and a compound (D-2) represented by general formula (2-2).

A method for manufacturing a blade for electrophotographic devices and a blade for electrophotographic devices are provided. The method includes: an impregnation step of impregnating, from the surface of at least a part of a blade-shaped substrate containing urethane rubber, with a blocked isocyanate in which an isocyanate group is blocked with a blocking agent, wherein the part includes a portion that comes into contact with a mating member; and a curing step of dissociating the blocking agent from the blocked isocyanate impregnated into the substrate in the impregnation step, and then curing the released isocyanate in the substrate to form a cured portion in at least the part of the substrate including the portion that comes into contact with the mating member. In the method, the isocyanate released from the blocked isocyanate includes an aromatic isocyanate.

A resin composition including a resin having an alcoholic hydroxy group and/or a carboxy group as a crosslinkable group, which exhibits excellent crosslinking reactivity to a polycarbodiimide compound and a polyoxazoline compound even at a low reaction temperature where the resin does not cause discoloration or thermal decomposition; a resin material including the resin composition; and a resin crosslinked body that is a reaction product of the resin composition are provided. The resin composition includes at least one resin (A) containing at least an alcoholic hydroxy group and a carboxy group; at least one crosslinking agent (B) selected from a polycarbodiimide compound and a polyoxazoline compound; and a specific organometallic compound (C). The resin material including the resin composition and the resin crosslinked body are provided.

A method for producing a carbodiimide compound, comprising a carbodiimide production step of reacting an aliphatic tertiary isocyanate compound (A) in the presence of an organic alkali metal compound (B) having Lewis basicity.