Polyol blends, isocyanate-reactive compositions, polyurethane foam-forming compositions, methods of producing polyurethane foams, polyurethane foams produced from such compositions and made by such methods. The polyol blends, isocyanate-reactive compositions and polyurethane foam-forming compositions include an isopropylidenediphenol-based polyether polyol in combination with another polyol.

Compositions suitable for production of polyurethane foams, comprising at least one OH-functional compound (OHC) obtainable by the partial or complete hydrogenation of ketone-aldehyde resins, wherein the OH-functional compound contains at least one structural element of the formula (1a) and optionally of the formulae (1b) and/or (1c), ##STR00001##
with R=aromatic with 6-14 carbon atoms, (cyclo)aliphatic with 1-12 carbon atoms, R.sup.1=H, CH.sub.2OH, R.sup.2=H, or a radical of the formula (CH.sub.2CH(R)O).sub.yH where R is hydrogen, methyl, ethyl or phenyl and y=1 to 50, k=2 to 15, preferably 3 to 12, more preferably 4 to 11, m=0 to 13, preferably 0 to 9, l=0 to 2,
where the sum of k+l+m is from 5 to 15, preferably from 5 to 12, and k>m, are described.

A process for producing rigid PUR/PIR foams via the reaction of a reaction mixture comprising A1 an isocyanate-reactive component, A2 a flame retardant, A3 a blowing agent, A4 a catalyst, and A5 optionally auxiliaries and additives with B an organic polyisocyanate component. Component A1 comprises a diurethane diol A1.1 and a compound A1.2 selected from the group consisting of polyether polyol, polyester polyol, polyether carbonate polyol, and polyether ester polyol. Also disclosed is a rigid PUR/PIR foam, an insulating material, a composite element, and a mixture.

A process for producing rigid PUR/PIR foams comprising A1 an isocyanate-reactive component, A2 a flame retardant, A3 a blowing agent, A4 a catalyst, A5 optionally auxiliaries and additives, and B an organic polyisocyanate component. Component A1 comprises a triurethane triol A1.1 and a compound A1.2 selected from the group consisting of polyether polyol, polyester polyol, polyether carbonate polyol, and polyether ester polyol. Also disclosed is a rigid PUR/PIR foam, an insulating material, a composite element, and a mixture.

Blends, polyol premix compositions, methods of forming such compositions, foamable compositions using the premix compositions, methods of preparing foams containing the premix compositions, and foams made using the premix compositions are described. The polyol premix composition includes a polyester polyol; halogenated olefin blowing agent; and a distribution-enhancing component. In the polyol premix composition, the blowing agent, the polyester polyol, and the distribution-enhancing component form a substantially uniform composition.

The invention provides a process for producing an open-cell rigid polyurethane foam by a slabstock foam process and also provides for the use of the rigid polyurethane foam obtained in vacuum insulation panels.

Polyether- or polyester-epoxide polymer (PEEP) compositions are disclosed. The compositions comprise reaction products of a polyepoxide compound and a polyol composition. The polyol composition has a melting point within the range of 20 C. to 100 C. and a hydroxyl number less than 35 mg KOH/g. The PEEP composition is a solid-solid phase-change material. As measured by differential scanning calorimetry (DSC) at a heating/cooling rate of 10 C./minute, the PEEP composition has a transition temperature within the range of 10 C. to 70 C., a latent heat at the transition temperature within the range of 30 to 200 J/g, and little or no detectable hysteresis or supercooling upon thermal cycling over at least five heating/cooling cycles that encompass the transition temperature. The PEEP compositions should enable formulators to manage thermal energy changes in many practical applications, including automotive, marine or aircraft parts, building materials, appliance insulation, electronics, textiles, garments, and paints or coatings.

Disclosed are polyurethane-foam forming compositions, rigid polyurethane foams and methods for their production, as well as to composite articles comprising such foams sandwiched between facer substrates, including use of such composite elements for floor insulating elements for refrigerated tractor trailers. The rigid polyurethane foams are produced from an isocyanate-reactive composition comprising: (1) a polyol blend; (2) a hydrochlorofluoroolefin; and (3) a tertiary amine catalyst composition.

In one aspect, a fiber-reinforced polymer is disclosed, which comprises a resin, and a plurality of carbon fiber filaments distributed throughout the resin, where at least about 60 percent of the carbon filaments are substantially aligned relative to one another. In some embodiments, at least about 70 percent, or at least about 80 percent, or at least about 90 percent, of the carbon filaments are substantially aligned relative to one another.

A functional material has, as a first component, a thermoset plastic material, as a second component, a binding material for binding the thermoset plastic material, and, as a third component, at least one additive, which is configured to improve a burning behavior, wherein the burning behavior corresponds at least to a fire reaction class C as given by DIN EN 113501-1 [German/European norm 113501-1]. A method is intended for producing such a functional material and an element is produced from such a functional material.