A polyurethane resin composition includes a reaction product of an aliphatic polyisocyanate derivative having an average number of isocyanate groups of 2 or more; a long-chain active hydrogen compound including a hydrocarbon group having 12 or more and 30 or less carbon atoms and an active hydrogen group in combination; a cationic active hydrogen compound including an active hydrogen group and a cationic group in combination; and an acid compound capable of a salt with the cationic group. The concentration of the hydrocarbon group is 30% or more and 85% or less.

The invention relates to a method for producing isocyanurates and isocyanurate-containing polyurethanes, comprising the step of reacting an isocyanate in the presence of a catalyst.

The invention relates to an adhesive dual-component composition based on polyurethane, comprising an —NCO component and an —OH component such that: the —NCO component is a composition comprising: A) at least one polyurethane prepolymer comprising at least two NCO terminal groups obtained by the polyaddition reaction of at least one dissymmetric diisocyanate monomer and at least one diol, and B) at least one triisocyanate selected from isocyanurates, biurets, diisocyanate and triol adducts, and the mixtures thereof; the —OH component is a composition comprising at least one polyol; at least one of the polyols or diols is selected from polyether polyols (or polyether diols); at least one of the polyols or diols is selected from polyester polyols (or polyester diols); and the weight ratio of the quantity of polyether polyol(s) to the quantity of polyester polyol(s), defined as r.sub.4, ranges from 0.6 to 2.2.

The present invention relates to a new process for preparing polyisocyanates containing isocyanurate groups and being flocculation-stable in solvents from (cyclo)aliphatic diisocyanates.

Disclosed is a composition for forming a polyurethane film with improved reaction stability, comprising an OH group-containing polymer; an isocyanate-based compound as a curing agent; and an alicyclic urea diol compound having two urea groups and an OH group at two terminals, and a polyurethane film with improved self-healable property from tear, derived from the composition.

The present invention relates to a process for the effective removal of residual monomeric aliphatic isocyanate from a reaction mixture comprising aliphatic polyisocyanate comprising (i) providing a reactor containing a scavenger comprising a zeolitic material, wherein the zeolitic material comprises SiO.sub.2 and optionally X.sub.2O.sub.3 in its framework structure, wherein X is a trivalent element; (ii) providing a reaction mixture comprising aliphatic polyisocyanate and monomeric aliphatic isocyanate; (iii) contacting the scavenger in the reactor with the reaction mixture provided in (ii) at a temperature lower than the boiling point of the residual monomeric aliphatic isocyanate for obtaining a product comprising aliphatic polyisocyanate with a reduced monomeric aliphatic isocyanate content, wherein if the zeolitic material comprises X.sub.2O.sub.3, the zeolitic material has an SiO.sub.2 to X.sub.2O.sub.3 molar ratio higher than 2.8:1, preferably higher than 5:1, more preferably higher than 30:1.

Provided is an aqueous coating composition which has excellent storage stability and whereby high coating film performance in terms of hardness, water resistance, etc., can be exhibited even when the aqueous coating composition is cured at a relatively low temperature. Disclosed is an aqueous coating composition which contains (A) a resin containing hydroxyl groups and carboxyl groups, (B) a blocked polyisocyanate compound, (C) a phosphate-group-containing compound, and (D) a basic compound, and which has a pH in the range of 7.0-8.2, wherein the basic compound (D) contains a specific quantity of (D1) a basic compound which has an acid dissociation constant (PKa) in the range of 7.0-8.5 and a boiling point in the range of 100-200° C.

A digital printed fabric includes a base cloth and a digital printing ink disposed on the base cloth, and a manufacturing method for the digital printing ink includes the following steps. A first thermal process including mixing a dye, a crosslinking agent, and a polyol is performed, such that a polymer dye is formed, in which a reaction temperature of the first thermal process is between 70° C. and 90° C. A second thermal process including mixing the polymer dye and an aqueous bridging agent is performed, such that a first mixture is formed, in which a reaction temperature of the second thermal process is between 90° C. and 120° C. A third thermal process including mixing the first mixture and a chain extender is performed, such that the digital printing ink is formed, in which a reaction temperature of the third thermal process is between 120° C. and 150° C.

Provided is an aqueous coating composition that can exhibit high coating film performance even when cured at a relatively low temperature. The present invention pertains to an aqueous coating composition comprising (A) a hydroxyl group-containing resin and (B) a blocked polyisocyanate compound. The weight average molecular weight of the blocked polyisocyanate compound (B) is in a range of 20,000-200,000.

The present disclosure provides a photopolymerizable composition comprising 50-90 wt % of at least one urethane component, 5-50 wt % of at least one reactive diluent, 0.1-5 wt % of a photoinitiator, and optionally an inhibitor, wherein said composition has a viscosity at a temperature of 40 degrees Celsius of 10 Pa.Math.s or less, as determined using a magnetic bearing rheometer using a 40 mm cone and plate measuring system at a shear rate of 0.1 l/s. The present disclosure also provides an article including the reaction product of the photopolymerizable composition, in which the article exhibits an elongation at break of 25% or greater. Further, the present disclosure provides a method of making an article including (i) providing a photopolymerizable composition and (ii) selectively curing the photopolymerizable composition to form an article. The method optionally also includes (iii) curing unpolymerized urethane component and/or reactive diluent remaining after step (ii). Further, methods are provided, including receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying an article; and generating, with the manufacturing device by an additive manufacturing process, the article based on the digital object. A system is also provided, including a display that displays a 3D model of an article; and one or more processors that, in response to the 3D model selected by a user, cause a 3D printer to create a physical object of an article.