The present invention provides a carbodiimide composition containing a water-soluble modified polycarbodiimide (A) and a water-insoluble polycarbodiimide (B), a curing agent composition using the same, a coating composition, and a resin cured product.

In developing epoxy resin compositions used as an adhesive for structure (structural adhesive) required to have adhesive properties, if each component is increased to further enhance the adhesive properties such as shear bond strength and peel strength, this causes problems, for example, as follows. The viscosity becomes so high that the workability deteriorates. Hence, the added amount has to be limited. Moreover, the cured product becomes excessively flexible, so that the shear bond strength deteriorates. An epoxy resin composition contains the following components (A) to (E), where the component (A) does not include the component (C): the component (A): an epoxy resin; the component (B): a blocked urethane resin; the component (C): a rubber-modified epoxy resin; the component (D): rubber particles; and the component (E): a latent curing agent.

In developing epoxy resin compositions used as an adhesive for structure (structural adhesive) required to have adhesive properties, if each component is increased to further enhance the adhesive properties such as shear bond strength and peel strength, this causes problems, for example, as follows. The viscosity becomes so high that the workability deteriorates. Hence, the added amount has to be limited. Moreover, the cured product becomes excessively flexible, so that the shear bond strength deteriorates. An epoxy resin composition contains the following components (A) to (E), where the component (A) does not include the component (C): the component (A): an epoxy resin; the component (B): a blocked urethane resin; the component (C): a rubber-modified epoxy resin; the component (D): rubber particles; and the component (E): a latent curing agent.

The present invention relates to a selective process for producing polyurethane prepolymers, to the polyurethane prepolymers obtainable from this process, and also to a process for producing moisture-crosslinking silylated polymers, more particularly silane-functional hybrid polymers, and also to the use thereof in CASE sectors (coatings, adhesives, sealants and elastomers).

The present disclosure provides aqueous ink-jet inks having improved salt stability containing an aqueous vehicle, a colorant, and a mixture of a water-borne anionic polymeric binder and a water-borne non-ionic polymeric binder.

The present disclosure provides aqueous ink-jet inks having improved salt stability containing an aqueous vehicle, a colorant, and a mixture of a water-borne anionic polymeric binder and a water-borne non-ionic polymeric binder.

An anti-staining fabric includes a base cloth and an anti-staining resin. The anti-staining resin is disposed on the base cloth, in which a method of fabricating the anti-staining resin includes the following steps. A first thermal process is performed to mix a polyol, a cross-linking agent, and a choline to form a first mixture, in which a reaction temperature of the first thermal process is between 90° C. and 120° C. A second thermal process is performed to mix the first mixture and a chain extender to form the anti-staining resin, in which the chain extender includes a first reagent and a second reagent, and a reaction temperature of the second thermal process is between 120° C. and 150° C.

A method for preparing a high-temperature self-crosslinking aqueous polyurethane dispersion. By using isocyanate (NCO) blocking agent to block part of the NCO, and using the hydroxyalkyl ethylenediamine chain extender in the post-chain extension stage to introduce hydroxyl groups, the polymer macromolecular structure containing both blocked NCO groups and hydroxyl groups can be prepared. The aqueous polyurethane dispersion does not need to mix with other waterborne resins and crosslinkers when applied. A sufficient cross-linking reaction is performed between the NCO released and hydroxyl groups on the polymer macromolecular chain to form a high-density cross-linked structure when curing at 100-150° C. for 20-30 min, thus obtaining a high-performance waterborne coating that can be used in the form of one-pack.

A method for preparing a high-temperature self-crosslinking aqueous polyurethane dispersion. By using isocyanate (NCO) blocking agent to block part of the NCO, and using the hydroxyalkyl ethylenediamine chain extender in the post-chain extension stage to introduce hydroxyl groups, the polymer macromolecular structure containing both blocked NCO groups and hydroxyl groups can be prepared. The aqueous polyurethane dispersion does not need to mix with other waterborne resins and crosslinkers when applied. A sufficient cross-linking reaction is performed between the NCO released and hydroxyl groups on the polymer macromolecular chain to form a high-density cross-linked structure when curing at 100-150° C. for 20-30 min, thus obtaining a high-performance waterborne coating that can be used in the form of one-pack.

The present invention provides compositions comprising the reaction product of an aliphatic diisocyanate, and a reactive intermediate made from one selected from the group consisting of oxazolidinones, benzoic sulfimides (saccharins), 1H-indole-2,3-diones (isatins), succinamides, N-hydroxysuccinamides, 4-hydroxy-3-methoxybenzaldehydes (vanillins), α-ketoamides, piperazines, benzofuranones, 3,4-dihydroxycyclobut-3-ene-1,2-diones (squaric acids), squaric acid esters, α-ketoamides, anilines, and α-ketoamide, phenols. The aliphatic diisocyanate comprises one selected from the group consisting of isocyanurates, biurets, iminooxadiazine diones, urethanes, uretdiones, carbodiimides, and allophanates. The resulting compositions may be useful in producing coatings, adhesives, sealants, castings, composites and films having durability, color stability, high gloss, and chemical resistance properties similar to those made from polyurethane.