A waterborne polyurethane dispersion is provided. The waterborne polyurethane dispersion is prepared by using a tri-functionality polyether polyol as part of the polyols for forming the prepolymer and a hydrophilic amino siloxane co-chain extender, and can exhibit superior performance properties such as enhanced color fastness, improved low temperature stability, good anti-stickiness, bally flex resistance, anti-abrasion and mechanical properties. A laminated synthetic leather article prepared with said waterborne polyurethane dispersion as well the method for preparing the synthetic leather article are also provided.

The present invention provides an aqueous polyurethane dispersion (PUD) comprising an amorphous polyester having a glass transition temperature (T.sub.g) as determined by differential scanning calorimetry of less than 30 C.; wherein the aqueous polyurethane dispersion (PUD) has a glass transition temperature (T.sub.g) as determined by differential scanning calorimetry (DSC) of 0 C. to 20 C. and a hard block content of greater than 50%. Coatings, adhesives, sealants, paints, primers and topcoats, made from the inventive aqueous polyurethane dispersion (PUD) pass detergent resistance testing according to the American Architectural Manufacturers Association's standard, AAMA 615-13, have a pencil hardness according to ASTM D3363 of at least 3H, and are particularly suited for use on low surface energy substrates such as vinyl and other surfaces including floors, windows, doors, window frames, door frames, window shutters, railing, gates, pillars, arbors, pergolas, trellises, gazebos, posts, fencing, pipes and fittings, wire and cable insulation, automobile components, credit cards, and siding.

Some variations provide a segmented copolymer composition comprising: fluoropolymer first soft segments that are (,)-hydroxyl-terminated and/or (,)-amine-terminated; polyester or polyether second soft segments that are (,)-hydroxyl-terminated and/or (,)-amine-terminated; isocyanate species possessing an isocyanate functionality of 2 or greater; and polyol or polyamine chain extenders or crosslinkers, wherein the molar ratio of the second soft segments to the first soft segments is less than 2.0. Exemplary segmented copolymers are disclosed. The segmented copolymer composition may be present in a low-friction, low-adhesion coating. Such a coating may be characterized by a coefficient of friction, measured at 90% relative humidity, less than 0.7. Such a coating may be characterized by an average kinetic delay of surface ice formation of at least 10 minutes at 10 C. These coatings are useful as bugphobic and icephobic coatings.

This disclosure describes incorporation of a liquid additive within one or more phases of a multiphase polymer coating. The structure of the microphase-separated network provides reservoirs for liquid in discrete and/or continuous phases. Some variations provide an anti-fouling segmented copolymer composition comprising: (a) one or more first soft segments selected from fluoropolymers; (b) one or more second soft segments selected from polyesters or polyethers; (c) one or more isocyanate species; (d) one or more polyol or polyamine chain extenders or crosslinkers; and (e) a liquid additive disposed in the first soft segments and/or the second soft segments. The first soft segments and the second soft segments are microphase-separated on a microphase-separation length scale from 0.1 microns to 500 microns. These solid/liquid hybrid materials improve physical properties associated with the coating in applications such as anti-fouling (e.g., anti-ice or anti-bug) surfaces, ion conduction, and corrosion resistance.

The present invention relates to a method for producing a mixture of alkoxylated polyphenols that can be used directly for producing different polyurethane materials, in particular polyurethane foams.

Novel polyurea siloxane coating compositions are contemplated, the compositions being the reaction products of isocyanate prepolymers and resin blends, with the resin blends containing siloxane copolymers in addition to conventional polyurea monomer and polymer resin reactants. Specifically, it has been found that reaction products having superior gloss retention, water resistance, temperature resistance, and chemical resistance may be formed from isocyanate prepolymers and resin blends having various amounts of poly[(3-aminopropyl)methylsiloxane-co-diphenylsiloxane] in addition to aromatic and/or aliphatic polyamines.

A polyurethane obtainable by reacting a polyisocyanate, a polyol, and/or a chain extender, wherein at least one of the polyisocyanate and chain extender comprises a C14 to C32 alkyl group. The polyurethane is particularly suitable for use in coating, elastomer and adhesive/sealant compositions.

Curable compositions are provided comprising: a) an isocyanate-functional component and b) an amine-functional component comprising i) a primary amine- and/or a secondary amine-functional compound, and ii) a tertiary amine-functional compound. The tertiary amine-functional compound is present in the amine-functional component b) in an amount of 3.5 to 7 percent by weight, based on the total weight of amine-functional compounds in the amine-functional component b). Also provided are curable compositions comprising the above and c) untreated silica particles. The untreated silica particles are present in the curable composition in an amount of 0.5 to 15 percent by weight, based on the total weight of solids in the curable composition. Additionally provided are coated articles and polyurea articles formed from the curable compositions above.