Binders, resinated furnishes, and methods for making composite lignocellulose products therefrom. The binder can include about 70 wt % to about 99.7 wt % of an aldehyde-based resin, about 0.3 wt % to about 30 wt % of an isocyanate-based resin, about 10 wt % to about 63 wt % of an extender, and about 145 wt % to about 230 wt % of water, where all weight percent values are based on a combined solids weight of the aldehyde-based resin and the isocyanate-based resin. The binder has a long pot life and can be used with lignocellulose substrates having a water content of 10 wt % or more.

The invention relates to storage-stable pigmented formulations containing isocyanate groups, comprising at least one pigment a., at least one component b. containing isocyanate groups, at least one wetting agent and/or dispersant c., at least one grind resin d. and optionally solvents, wherein the formulation has a viscosity increase of less than 500% after storage at 50 C. over a period of at least 3 days. The invention also relates to the production of such formulations and to the use thereof.

A spray foam formulation used to form a spray foam insulation layer in a wall structure is described. The formulation may include the reaction product of a polyisocyanate compound and a polyol compound; a fire retardant chosen from at least one of a non-halogenated fire retardant; and a reactive halogen-containing fire retardant, and a carbohydrate. The spray foam insulation layer has an insulative R value of 3.0 to 7.2 per inch, and a density of between about 0.3 to about 4.5 pcf. Further, spray foam insulation made from the spray foam formulation may have fire retardant characteristics that are equivalent to or better than a similar spray insulation foam insulation using non-reactive halogenated fire retardants such as tris(1-chloro-2-propyl)phosphate (TCPP).

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.

The present invention relates to a method for producing flexible polyurethane foams based on polyoxymethylene-polyoxyalkylene block copolymers. The invention also relates to the use of the flexible polyurethane foams thus produced and their use for producing furniture upholstery, textile inlays, mattresses, automobile seats, headrests, armrests, sponges, foam sheets for use in automobile parts such as roof linings, door panel upholstery, seat covers and technical components. The invention finally relates to a two-component system for producing flexible polyurethane foams.

The invention relates to a high pressure laminate panel having a surface layer on at least one panel surface, which has as the outermost layer a polymer coating with a polyurethane(meth)acrylate polymer, and which is characterized by excellent scratch resistance and resistance to weathering. Furthermore, a method for the production of polyurethane(meth)acrylate-coated high pressure laminate panels is provided.

A formulation containing (i) a first component formed from at least one isocyanate and at least one polyether and (ii) a second component including at least one amino resin, wherein the amino resin is the condensation product of an aldehyde and at least one of urea, melamine, benzoguanamine, glycoluril, and acetoguanamine. A process for binding lignocellulosic materials using the formulation is also described.

A formulation containing (i) a first component formed from at least one isocyanate and at least one polyether and (ii) a second component including at least one amino resin, wherein the amino resin is the condensation product of an aldehyde and at least one of urea, melamine, benzoguanamine, glycoluril, and acetoguanamine. A process for binding lignocellulosic materials using the formulation is also described.

Described is a phenolic resin composition for use in the polyurethane cold-box and/or no-bake process. The phenolic resin composition comprises an ortho-condensed phenolic resol having etherified and/or free methylol groups in a total amount of 40 to 60% by weight based on the total mass of the phenolic resin composition, free formaldehyde in an amount of less than 0.1% by weight based on the total weight of the phenolic resin composition, one or more reaction products of formaldehyde with one or more CH-acidic reactant compounds, other constituents in a total amount of at least 38% by weight, wherein the amount of water in the phenolic resin composition is not more than 1.0% by weight in each case based on the total mass of the phenolic resin composition. Also described is a two-component binder system for use in the polyurethane cold-box and/or no-bake process, a use of a CH-acidic compound as a formaldehyde scavenger for producing a phenolic resin composition for use in the polyurethane cold-box and/or no-bake process, a process for producing a phenolic resin composition, a process for producing a two-component binder system and a process for producing a feeder, a foundry mold or a foundry core from a molding material mixture and finally corresponding feeders, foundry molds and foundry cores.

Defects can arise in a product of a metal casting process from reactions occurring at a metal-mold interface. A method that reduces the defects uses an organic binder system by introducing a separate third component to a two-part polyurethane-based binder system used in the cold box or no bake process. The third part is added only after the first two parts are mixed with a refractory molding material to provide a shapeable foundry mix. The third part is an alkyl silicate, such as tetraethyl orthosilicate (TEOS), an alkyl orthoformate, such as trimethyl orthoformate (TMOF) or triethyl orthoformate (TEOF), or combinations thereof.