Abstract: The present invention relates to aqueous, two-component compositions containing A) hydroxyl-containing polydimethylsiloxanes having number average molecular weights of 400 to 3000 and an average OH functionality of ?1.8, and containing at least one structural unit of formula I) wherein R is an aliphatic, linear or branched C1 to C20 radical, R1 is a linear or branched hydroxyalkyl radical having 2 to 10 carbon atoms and R2 is either hydrogen or a linear or branched hydroxyalkyl radical having 2 to 10 carbon atoms, B) addition polymers containing hydroxyl groups and having a number average molecular weight Mn of 500 to 50,000, a hydroxyl number of 16.5 to 264 mg KOH/g solid resin, an acid number of 0 to 150 mg KOH/g solid resin and a chemically bound carboxylate and/or sulphonate group content of 5 to 417 milliequivalents per 100 g of polymer solids, and C) polyisocyanates. The present invention also relates to coatings, adhesives or sealants obtained from these compositions.

Abstract: The present invention relates to two-component compositions containing A) hydroxyl-containing polydimethylsiloxanes having number average molecular weights of 400 to 3000 and an average OH functionality of ?1.8, and containing at least one structural unit of formula I) wherein R is an aliphatic, linear or branched C1 to C20 radical, R1 is a linear or branched hydroxyalkyl radical having 2 to 10 carbon atoms and R2 is either hydrogen or a linear or branched hydroxyalkyl radical having 2 to 10 carbon atoms, B) polyhydroxyl compounds other than A) or polyamines, and C) polyisocyanates. The present invention also relates to coatings, adhesives or sealants obtained from these compositions.

Abstract: A process for in-mold coating and a mold is disclosed. The process entails (i) obtaining a mold having at least two cavities, (ii) molding a thermoplastic substrate in a first cavity, (iii) introducing the substrate into a second cavity, and (iv) coating said substrate with lacquer, the coating being carried out under enhanced pressure.

Abstract: A molded article lacquered with a water base lacquer is disclosed. The thermoplastically molded article contains A) 4 to 80 parts by weight (pbw) of a first polyalkylene terephthalate, B) 4 to 80 pbw of a second polyalkylene terephthalate having an alkylene chain length different from said first polvalkylene terephthalate, C) 10 to 90 pbw of aromatic polycarbonate, D) 1 to 30 pbw of at least one member selected from the group consisting of elastomeric polymer and graft copolymer, E) 0.1 to 20 pbw of at least one member selected from the group consisting of conventional additive and processing aid, wherein the total pbw of (A) through (E) equals 100 pbw, and optionally F) 0 to 60 pbw of a particulate mineral filler. The inventive article is suitable for making vehicular external parts.

Abstract: Binder combinations containing polyisocyanates, special lactone-based polyols and polyester polyols and to their use for producing coatings, preferably on plastics.

Abstract: The invention provides novel solvent-free two-component polyurethane coating agents for preparing high quality yellowing-free coatings and a process for the preparation thereof. The coating agents include binder mixtures containing a polyisocyanate component with a viscosity at 23° C. of 2,000 to 150,000 mPas, a NCO content of 14 to 23 wt. % and a calculated mean NCO functionality of at least 2.8; a polyol component with a mean OH functionality <3, a viscosity at 23° C. of 5,000 to 150,000 mPas and a hydroxyl value of 400 to 700 mg KOH/g; and optionally one or more catalysts.

Abstract: High-solids binder combinations comprising polyisocyanates, special lactone-based polyols and polyacrylate-polyols, a process for preparing such binders, and their use for producing coatings.

Abstract: The present invention concerns novel reactive one-component coating systems, a process for their production and their use in one-component polyurethane systems.

Abstract: The present invention relates to a process for producing an aliphatic oligocarbonate diol comprising a) reacting an aliphatic diol with dimethyl carbonate at an elevated pressure in a reaction mixture, and b) subsequently removing unreacted methanol and dimethyl carbonate under a reduced pressure to uncap the terminal OH groups.

Abstract: The invention relates to new blocked polyurethane prepolymers, a process for their production and reactive systems produced therefrom that harden at room temperature, and their use.

Abstract: The present invention relates to aliphatic oligocarbonate polyols prepared by the transesterification of organic carbonates with aliphatic polyols in the presence of at least one catalyst which contains i) at least one rare earth metal or compounds thereof or ii) at least one metal of group III B of the periodic table of the elements or compounds thereof or iii) mixtures of i) and ii) and to a process for preparing the same.

Abstract: The present invention relates to a process for producing an aliphatic oligocarbonate diol comprising a) reacting an aliphatic diol with dimethyl carbonate at an elevated pressure in a reaction mixture, and b) subsequently removing unreacted methanol and dimethyl carbonate under a reduced pressure to uncap the terminal OH groups.