A polymerizable liquid that can be used for producing three-dimensional objects by methods of additive manufacturing is disclosed. The polymerizable liquid may comprise: (a) a blocked or reactively blocked polyurethane prepolymer; (b) (optional) a reactive diluent; (c) a blocked or reactively blocked curing agent; (d) a photoinitiator; and (e) (optional) a blocked or reactively blocked diisocyanate. The method using such polymerizable liquid to form three-dimensional objects is also described.

A polymerizable liquid that can be used for producing three-dimensional objects by methods of additive manufacturing is disclosed. The polymerizable liquid may comprise: (a) a blocked or reactively blocked polyurethane prepolymer; (b) (optional) a reactive diluent; (c) a blocked or reactively blocked curing agent; (d) a photoinitiator; and (e) (optional) a blocked or reactively blocked diisocyanate. The method using such polymerizable liquid to form three-dimensional objects is also described.

A mixture of isomeric aldimines of the formulae (Ia), (Ib) and (Ic) in which the ratio of the trans,trans isomer (Ia) to the sum of the cis,trans isomer (Ib) and the cis,cis isomer (Ic) is in the range of 5/95 to 30/70, and its use as latent hardener for moisture-curing isocyanate-functional polyurethane compositions. The inventive mixture of isomeric aldimines enables polyurethane compositions with very low content of monomeric isophorone diisocyanate and excellent stability under outdoor wheathering conditions and high UV load, which cure quickly to an elastic material of low surface tack and good mechanical properties, particularly in terms of high tensile strength and modulus of elasticity at high elongation. Such compositions are particularly suitable as elastic adhesives and/or sealants or elastic coatings, particularly for outdoor use such as on roofs, floors or ships.

A mixture of isomeric aldimines of the formulae (Ia), (Ib) and (Ic) in which the ratio of the trans,trans isomer (Ia) to the sum of the cis,trans isomer (Ib) and the cis,cis isomer (Ic) is in the range of 5/95 to 30/70, and its use as latent hardener for moisture-curing isocyanate-functional polyurethane compositions. The inventive mixture of isomeric aldimines enables polyurethane compositions with very low content of monomeric isophorone diisocyanate and excellent stability under outdoor wheathering conditions and high UV load, which cure quickly to an elastic material of low surface tack and good mechanical properties, particularly in terms of high tensile strength and modulus of elasticity at high elongation. Such compositions are particularly suitable as elastic adhesives and/or sealants or elastic coatings, particularly for outdoor use such as on roofs, floors or ships.

The present application relates to a field of anti-corrosion coating, in particular, relates to an aspartic polyurea coating including a polyaspartic acid ester: 36%-60%; a ketoimine: 4%-8%; a dispersant: 0.5%-1.0%; an organotin catalyst: 0.1%-0.2%; a titanium white powder: 0%-48%; a thixotropic agent: 0.2%-1.0%; a leveling agent: 0.05%-0.3%; an antifoamer: 0.1%-1.0%; an antiager: 0%-3.0%; a coupling agent: 0%-5%; a diluent: 0%-10% and component B isocyanate curing agent.

A polymerizable liquid that can be used for producing three-dimensional objects by methods of additive manufacturing is disclosed. The polymerizable liquid may comprise: (a) a blocked or reactively blocked polyurethane prepolymer; (b) (optional) a reactive diluent; (c) a blocked or reactively blocked curing agent; (d) a photoinitiator; and (e) (optional) a blocked or reactively blocked diisocyanate. The method using such polymerizable liquid to form three-dimensional objects is also described.

A polymerizable liquid that can be used for producing three-dimensional objects by methods of additive manufacturing is disclosed. The polymerizable liquid may comprise: (a) a blocked or reactively blocked polyurethane prepolymer; (b) (optional) a reactive diluent; (c) a blocked or reactively blocked curing agent; (d) a photoinitiator; and (e) (optional) a blocked or reactively blocked diisocyanate. The method using such polymerizable liquid to form three-dimensional objects is also described.

A one-component moisture curing composition and a method for sealing construction joints against penetration of water. The one-component moisture curing composition includes at least one isocyanate-functional polyurethane polymer, at least one inorganic swelling agent selected from the group including aluminum sulfate and magnesium sulfate, and at least one hydrophilic aldimine of formula (I).

A two-component polyurethane composition containing at least 55% by weight of polybutadiene polyols based on the total amount of all polyols having an average molecular weight of at least 500 g/mol, and at least one latent hardener, where the ratio of the number of reactive groups in the latent hardener to the number of OH groups present is in the range from 0.02 to 0.4. The composition has a long open time, blister-free curing, a very low glass transition temperature, high elasticity and surprisingly high strength which is very constant over a wide temperature range. Furthermore, it has very good adhesion to metallic and nonmetallic substrates, causing barely any stress cracks on glassy thermoplastics.

A blocked amine as curing aid for polymers containing isocyanate groups and having a low monomeric diisocyanate content, obtained from the reaction of at least one monomeric diisocyanate with at least one polyol in an NCO/OH ratio of at least 3/1, followed by removal of a majority of the monomeric diisocyanates by means of a suitable separation method, and to the moisture-curing polyurethane compositions obtained from this use. The use enables storage-stable, moisture-curing polyurethane compositions which can be safely handled even without special safety precautions and can be sold without hazard labeling in many countries, have good processibility and cure reliably and rapidly at ambient temperatures to give a material of high strength, elasticity and extensibility, and high stability to weathering influences. Such moisture-curing polyurethane compositions are particularly suitable as elastic sealants, adhesives or coatings, especially also for exposed outdoor applications.