Aqueous dispersion comprising polyurethane or polyurethane-urea, a preparation method therefor and a use thereof. The polyurethane or polyurethane-urea is prepared by reacting raw materials comprising the following components: a compound having a tertiary amine group and at least one NCO reactive functional group, a polyester polyol having a number average molecular weight of 400 to 5000 and a functionality of 2 to 3, an organic compound having at least two isocyanate groups, a hydrophilic compound having one or more of an ionic group, a potential ionic group and a non-ionic group and having 2 to 3 NCO reactive functional groups, and a mono-functional non-ionic hydrophilic compound having at least one NCO reactive functional group. The aqueous dispersion can be stably stored for a prolonged period of time, and an adhesive prepared from the aqueous dispersion has an improved hydrolysis resistance while maintaining good bonding strength and heat resistance.

Aqueous dispersion comprising polyurethane or polyurethane-urea, a preparation method therefor and a use thereof. The polyurethane or polyurethane-urea is prepared by reacting raw materials comprising the following components: a compound having a tertiary amine group and at least one NCO reactive functional group, a polyester polyol having a number average molecular weight of 400 to 5000 and a functionality of 2 to 3, an organic compound having at least two isocyanate groups, a hydrophilic compound having one or more of an ionic group, a potential ionic group and a non-ionic group and having 2 to 3 NCO reactive functional groups, and a mono-functional non-ionic hydrophilic compound having at least one NCO reactive functional group. The aqueous dispersion can be stably stored for a prolonged period of time, and an adhesive prepared from the aqueous dispersion has an improved hydrolysis resistance while maintaining good bonding strength and heat resistance.

Disclosed is a composition having: an organosilane polymer, a polyamide polymer; and an abrasive aggregate. The organosilane is made by: reacting an amino-functional alkoxysilane with one or more polyisocyanates to form one or more adducts having an unreacted isocyanate group; and reacting the adducts with one or more polyfunctional amino- and/or hydroxyl compounds so that the polymer contains no unreacted isocyanate groups. The polyfunctional amino- and/or hydroxyl compound has a cycloaliphatic group or an aromatic group. The composition can be used to make a single-component polysiloxane non-skid/non-slip coating that is applied by rolling, spraying, or troweling and cures with atmospheric moisture.

The present invention provides a synthetic leather including at least a base (i), an adhesive layer (ii), and a skin layer (iii). The adhesive layer (ii) is formed of a urethane resin composition including a urethane resin (A) produced using an aromatic polyisocyanate (a1) as a raw material and water (B). The skin layer (iii) is formed of a urethane resin composition including an anionic urethane resin (X) having an anionic group concentration of 0.25 mmol/g or less, water (Y), and an anionic surfactant (Z). The aromatic polyisocyanate (a1) preferably includes toluene diisocyanate. The urethane resin (A) has an aromatic ring concentration of 0.1 to 2.5 mol/kg.

The present invention provides a synthetic leather including at least a base (i), an adhesive layer (ii), and a skin layer (iii). The adhesive layer (ii) is formed of a urethane resin composition including a urethane resin (A) produced using an aromatic polyisocyanate (a1) as a raw material and water (B). The skin layer (iii) is formed of a urethane resin composition including an anionic urethane resin (X) having an anionic group concentration of 0.25 mmol/g or less, water (Y), and an anionic surfactant (Z). The aromatic polyisocyanate (a1) preferably includes toluene diisocyanate. The urethane resin (A) has an aromatic ring concentration of 0.1 to 2.5 mol/kg.

The present invention relates to novel solvent-free, blocked isocyanate prepolymers curing at room temperature, and to a method for the production thereof. Furthermore, the present invention relates to the use of said blocked isocyanate prepolymers for producing solvent-free reactive systems and to their use for producing adhesives, sealing compounds, casting compounds, molded parts or coatings, which are curing at room temperature.

The present invention relates to novel solvent-free, blocked isocyanate prepolymers curing at room temperature, and to a method for the production thereof. Furthermore, the present invention relates to the use of said blocked isocyanate prepolymers for producing solvent-free reactive systems and to their use for producing adhesives, sealing compounds, casting compounds, molded parts or coatings, which are curing at room temperature.

Methods of printing a three-dimensional object using co-reactive components are disclosed. Thermosetting compositions for three-dimensional printing are also disclosed.

The presently claimed invention is directed to a polyurea copolymer obtained by reacting an isocyanate mixture and at least one at least one secondary amine having at least two amine functionalities; wherein the isocyanate mixture (A) has an average NCO functionality of ≥2.10.

The present invention relates generally to amine curing agents compositions useful in formulation additives, compositions comprising systems, resin formulations, and the use of these compositions in methods of making objects by additive manufacturing using 3D printing methodologies.