A polyurethane adhesive composition, more specifically a two-component polyurethane adhesive, including (a) at least one isocyanate component, wherein the isocyanate component comprises (ai) at least one first polyisocyanate compound, and (aii) at least one second polyisocyanate compound having a functionality of greater than, or equal to, about 2.3; and (b) at least one polyol component; and a process for making the above adhesive composition.

The present invention provides for the use of nitrogen compounds of formula (I) and/or of corresponding quaternized and/or protonated compounds for production of polyurethanes, compositions containing these compounds and polyurethane systems, especially polyurethane foams, which have been obtained using the compounds.

Flame retardant polyesters obtainable by reacting an aromatic or aliphatic dicarboxylic acid and/or ester of anhydride thereof, with an aliphatic polyol or mixtures thereof and with melamine, are provided. Methods of making said polyesters are also provided.

The invention relates to temperature-resistant foams with a high degree of flame resistance, to the production of same from aromatic isocyanates and polyepoxides using incorporable catalysts and with formic acid as a blowing agent, and to the use of said foams.

An adhesive composition for use on a fleece-backed roofing substrate includes two components that are mixed prior to application on the fleece backed roofing substrate. The first component includes renewable polyol, catalyst, fumed silica, and surfactant. The renewable polyols are selected from any non-petroleum based polyol that is derived from a renewable source. The second component includes isocyanates, including renewable and non-renewable isocyanates.

The invention relates to composite elements comprising a thermoplastic polymer and an adjacent polyurethane bonded thereto, to a process for production thereof and to the use thereof.

A mounting foam contains polyols, isocyanates, plasticizers, surfactants, a catalyst and gases. The foam contains polyols from 30% to 35% and gases from 15.5% to 17.5%, where the ratio of NCO:OH is from 3.4 to 3.9. The foam is used as an adhesive for coatings and to fill voids in structures.

The present invention relates to a selective process for producing polyurethane prepolymers, to the polyurethane prepolymers obtainable from this process, and also to a process for producing moisture-crosslinking silylated polymers, more particularly silane-functional hybrid polymers, and also to the use thereof in CASE sectors (coatings, adhesives, sealants and elastomers).

A polyol composition suitable for making rigid polyurethane foam includes a combination of five polyols, a surfactant and a polyurethane gelling catalyst. The polyol composition contains at most a very small quantity of a blowing catalyst. The polyol composition surprisingly produces, upon reaction with a polyisocyanate in the presence of a physical blowing agent, a polyurethane foam that exhibits little or no loss of compressive strength when overpacked. The polyol composition is especially useful for making fiber-reinforced rigid foams useful in cryogenic applications.

The invention relates to a composition comprising and to a process for preparing moisture-crosslinking polymers under catalysis by a metal-siloxane-silanol(ate) compound, and to the use of the composition in the CASE sector (coatings, adhesives, sealants and elastomers), especially in the field of adhesives and sealants.