Disclosed are low-viscosity foamable polyurethane-forming compositions containing a polyol composition having monomeric and higher polyol components and optionally a polyhydroxylated aromatic compound; a polyisocyanate or latent polyisocyanate component or a combination thereof; a blowing agent; and optionally a cyclic carbonate having one or more hydroxyl groups. The monomeric and higher polyols each contain three or more hydroxyl groups, the higher polyol containing residues of the monomeric polyol and optionally residues of the polyhydroxylated aromatic compound, the residues being linked by one or more carbonate and/or ether groups. The Disclosed foamable polyurethane-forming compositions may contain the polyol compositions disclosed; an isocyanate functional component; and a blowing agent. The foamable compositions afford high strength, heat-resistant, low to moderate density foamed-polyurethane compositions useful in a variety of applications including construction, vehicle and packaging applications.

A continuous process for producing a polyurea concentrate or powder. The process includes combing at least one amine and an isocayante in the presence of a liquid diluent or a base oil in a rotor stator mixer. The concentrate comprises a polyurea in a base oil wherein the concentration of from about 20 weight percent to about 50, or 40 or 35 or 30 weight percent of polyurea based on total weight of grease thickener. The powder has particle size of 2 to 400 microns. This concentrate or powder can then be formulated by grease manufacturers to the desired final properties without the need for handling of the isocyanate and amine raw materials.

A particulate polyurea compound a2) for reducing gloss of coatings, a resin composition and a crosslinkable composition comprising the particulate polyurea compound is provided, wherein the volume percentage of particles of the particulate polyurea compound having a diameter of smaller than 10 μm is equal or less than 40%, and the volume percentage of the polyurea product having a diameter larger than 20 μm is equal or more than 11%.

Polyurethane heat-stabilizing agents may help resist temperature changes and preparations of an aqueous composition which may be resistant to temperature changes due to the use of such an agent (P). The viscosity may be thermally stabilized by such an aqueous composition in a wide temperature range and for many shear gradient values.

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 invention relates to a silylated polyurethane obtainable by reacting: d) at least one polyol having a number average molecular weight of from 1000 to 50,000 g/mol; e) at least one polyisocyanate, preferably diisocyanate; and f) at least one tertiary hydroxyl functional alkoxysilane of the general formula (I) ##STR00001##
wherein R.sup.1 is selected from the group consisting of hydrogen and a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R.sup.2 and R.sup.3 are same or different and are, independent from one another, selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R.sup.4 is selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R.sup.5 is selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; R.sup.6 and R.sup.7 are same or different and are, independent from one another, selected from a linear or branched, substituted or unsubstituted hydrocarbon residue having 1 to 20 carbon atoms; and n is 1, 2 or 3, a method for preparing thereof, a curable composition comprising the thereby obtained silylated polyurethane, and its use.

The invention relates to curable coating compositions containing at least one surface modifying amphiphilic additive; and at least one siloxane-polyurethane coating composition. The invention also relates to methods of making and using the curable coating compositions of the invention. The invention also relates to objects coated with the curable coating composition of the invention. The invention also relates to methods for reducing or preventing biofouling of a surface exposed to an aqueous environment comprising the steps of coating the surface with the curable coating composition of the invention to form a coated surface, and curing the coating composition on the coated surface. The invention also relates to a marine fouling-release coating containing the curable coating composition of the invention.

The present disclosure relates to two-component coating material compositions including a paint base component A and a curing component B. The paint base component A includes one or more polyols A1 selected from the group of polyols containing ester groups and which possess a hydroxyl number of 300 to 500 mg KOH/g and have a hydroxyl group functionality of greater than 2. The curing component B includes one or more polyisocyanates B1 having on average 2.4 to 5 NCO groups. The two-component coating material composition possesses a solids content of at least 96 wt %, and the molar ratio of the NCO groups in the curing component B to the acidic hydrogen atoms in the paint base component A is from 1:1.15 to 1:0.95. The disclosure further relates to a method for coating fiber-reinforced plastics and to a method for producing coated fiber-reinforced plastics, and to coating fiber-reinforced plastics.

The present invention relates to a urea group containing product comprising one or more species of formula (I) R.sup.1—X—(C═O)—[NH—R.sup.2—NH—(C═O)—NH—R.sup.3—NH—(C═O)].sub.n—NH—R.sup.2—NH—(C═O)—X—R.sup.1 (I), 5 wherein R.sup.1 is independently selected from organic groups having (4) to (200) carbon atoms, X is O or NR.sup.4, wherein R.sup.4 is a hydrogen atom or an aliphatic or aromatic group having (1) to (30) carbon atoms, R.sup.2 is independently selected from hydrocarbyl groups having (4) to (40) carbon atoms, R.sup.3 is independently selected from hydrocarbyl groups having (2) to (40) carbon atoms, and wherein on average (76) to (100) mol % of all R.sup.3 groups contained in the one or more species of formula (I) are hydrocarbyl groups having (2) or (3) carbon atoms, and n is an integer of (2) to (150). The invention further relates to a method of manufacturing such urea group containing products, liquid compositions containing the same and the use of such liquid compositions as rheology control additives. Furthermore, the invention relates to a process for rheology adjustment adding such liquid composition to semi-finished or final products. The invention also relates to an article coated with the liquid composition.

Disclosed is a low-temperature curable composition comprising: (A) at least one curable component selected from an epoxy resin and a blocked isocyanate, and (B) an amine-based latent curing agent, wherein a temperature peak of a reaction of the amine-based latent curing agent (B) with a bisphenol A type epoxy resin is between 70° C. and 110° C.