The present invention relates to an article comprising expanded thermoplastic polyurethane as a substrate and a specific polyurethane urea coating on said substrate, as well as footwear, a process for producing the article and a use of a polyurethane urea dispersion/solution. It has been found that a polyurethane urea coating comprising polycarbonate structural units strongly binds to expanded TPU substrates and maintains the intrinsic properties of the expanded TPU.

The present invention relates to a process for producing a thermoplastic polyurethane reacting at least one thermoplastic polyurethane (TPU-1) or a polyurethane mixture comprising a thermoplastic polyurethane (TPU-1) with at least one compound (V1) comprising two hydroxyl groups to obtain a mixture (G-a) comprising a thermoplastic polyurethane (TPU-2) and the reaction of the mixture (G-a) with a mixture (G-b) comprising an isocyanate composition (ZI) comprising at least one diisocyanate and optionally and a polyol composition (ZP) comprising at least one polyol (P2) to obtain a thermoplastic polyurethane (TPU target), wherein the proportion of the employed components (ZI) and (ZP) is matched to the hard segment content of the employed thermoplastic polyurethane (TPU-1), (V1) and the hard segment content of the thermoplastic polyurethane (TPU target). The invention further relates to a thermoplastic polyurethane obtained or obtainable by such a process and to the use thereof for producing extruded, injection molded and pressed articles as well as foams, cable sheathings, hoses, profiles, drive belts, fibers, nonwovens, films, moldings, soles, sporting goods, shoes, plugs, housings, damping elements for the electricals industry, automotive industry, mechanical engineering, 3D printing, medicine and consumer goods.

Provided is a film-forming resin composition for protecting an article that an organic polymer is exposed, including a polyurethane resin (A) having a hydroxyl group, a (meth)acrylic resin (B) having a hydroxyl group, and a polyfunctional isocyanate (C), in which the composition has a cross-linking density n of 1.010.sup.4 to 5.010.sup.3 mol/cm.sup.3, which is determined according to Mathematical Formula (1) n=E.sub.min/(3RT). Here, E.sub.min represents a minimum value Emin of storage elastic modulus of a cured film obtained by curing the resin composition at 80 C. for 16 hours in a case where the cured film is subjected to viscoelasticity measurement at a frequency of 1.0 Hz and a temperature range of 40 C. to 160 C., T represents an absolute temperature at the minimum value E.sub.min, and R represents a gas constant.

This description relates to low VOC water borne coating compositions with improved application properties based on a binder mixture comprising an urethanized polyester and an acrylic two-step polymer. This description further relates to the use of the low VOC water borne coating compositions for forming a coating, preferably for forming a clear coat, and more preferably for forming a clear coat in refinishing applications. Moreover, this description also relates to a method of forming a multilayer coating comprising a step of forming a coating layer by using the low VOC water borne coating composition.

The present invention relates to an article comprising expanded thermoplastic polyurethane as a substrate and a specific polyurethane urea coating on said substrate, as well as footwear, a process for producing the article and a use of a polyurethane urea dispersion/solution. It has been found that a polurethane urea coating comprising polycarbonate structural units strongly binds to expanded TPU substrates and maintains the intrinsic properties of the expanded TPU.

A two-component curable solventless-type laminate adhesive contains a polyisocyanate component and a polyol component. The polyisocyanate component contains a derivative of a pentamethylene diisocyanate, the derivative of the pentamethylene diisocyanate contains an isocyanurate group and an allophanate group, and the content ratio of the isocyanurate group with respect to 100 moles of the total amount of the isocyanurate group and the allophanate group is 60 moles or more and 99 moles or less.

A two-component curable solventless-type laminate adhesive contains a polyisocyanate component and a polyol component. The polyisocyanate component contains a derivative of a pentamethylene diisocyanate, the derivative of the pentamethylene diisocyanate contains an isocyanurate group and an allophanate group, and the content ratio of the isocyanurate group with respect to 100 moles of the total amount of the isocyanurate group and the allophanate group is 60 moles or more and 99 moles or less.

Disclosed is a polyol composition comprising: (a) at least one monomeric polyol comprising three or more hydroxyl groups; (b) at least one higher polyol comprising three or more hydroxyl groups; and (c) at least one polyhydroxylated aromatic compound; wherein the at least one higher polyol comprises residues of either or both of the at least one monomeric polyol and the polyhydroxylated aromatic compound linked by one or more carbonate groups, oxygen ether groups, or a combination thereof, and wherein the polyol composition has a viscosity of less than 5000 cps at 150 degrees Fahrenheit. The at least one monomeric polyol and at least one higher polyol may have any structures affording polyol compositions and polyurethane compositions having the requisite physical characteristics in terms of polyol composition viscosity and polyurethane heat resistance, strength and flexural modulus. The polyol compositions are adapted to provide structurally robust, temperature resistant polyurethanes, but are of sufficiently low viscosity to permit the use of currently available pumping and mixing equipment. The resultant polyurethane compositions may exhibit heat distortion temperatures in excess of 110 degrees centigrade, high strength and essentially no loss of material properties in prolonged humidity tests at 70 degrees centigrade, lower peak exotherms, typically less than 250 degrees Fahrenheit during in-mold curing/polymerization. Articles prepared from polyurethanes incorporating such polyol compositions as reactants exhibit flexural strengths in excess of 10,000 psi and flexural moduli in excess of 400,000 psi, and exhibit outstanding green strength.

The present invention relates to a special process for preparing polyesterols having terminal hydroxyl groups and containing imide groups, to the polyesters per se, and to their use for the preparation of polyurethanes.

Absorbent element for spilled petroleum or its derivatives comprising an oil-absorbent, hydrophobic and oleophilic material, essentially based on polyurethane foam, having a specific weight in the range of 15-30 g/l and delimiting open cells and closed cells, the latter being in a percentage equal to or lower than 10% of the total cells. The invention further relates to an assembly comprising a plurality of such elements and a method for fabricating an oil-absorbent material.