摘要:
The present invention relates to UV-curable, dispersible polyurethanes and polyurethane dispersions, to a process for preparing them, and to their use.
摘要:
The invention relates to a method for the treatment of surfaces of wood or woodbase materials with surface treatment compositions, and the timbers or woodbase materials thus treated by impregnating with a curable aqueous composition of α) low molecular weight compounds V which have at least two N-bonded groups and/or β) precondensates of the compound V and/or γ) reaction products or mixtures of the compound V with at least one alcohol which is C1-C6-alkanols, C2-C6-polyols or oligoalkylene glycols; treating that impregnated material at elevated temperature and) treating at least one surface of the wood or woodbase material to be treated with a surface treatment composition.
摘要:
The invention relates to radiation-curable, water-emulsifiable compounds containing isocyanate groups or capped isocyanate groups, and to their use.
摘要:
An aqueous paint formulation having an aqueous basecoat and an aqueous dispersion having an at least partially neutralized ethylene copolymer wax, wherein the ethylene copolymer wax contains as comonomers in copolymerized form (A) 12-40 wt % of an ethylenically unsaturated carboxylic acid of formula (I), (B) 60-88 wt % of ethylene, and (C) 0-10 wt % of a further comonomer; or the ethylene copolymer was contains as comonomers in copolymerized form (A′) 5-50 wt % of a comonomer of formula (II), (B′) 50-95 wt % of ethylene, and (C′) 0-20 wt % of a further comonomer; wherein the ethylene copolymer wax comprising the comonomers (A), (B), and optionally (C) has a molecular weight Mw of 10000 to 150000 g/mol, and the ethylene copolymer wax comprising the comonomers (A′), (B′), and optionally (C′) has a molecular weight Mw of 5000 to 40000 g/mol.
摘要:
The present invention relates to a binder for the production of bonded mineral wool, wherein a phenol-formaldehyde-binder is applied onto the still hot fibers after the fiberization of a mineral wool, using a binder that comprises hydroxylamine or an amino alcohol with the following general formula (I) wherein R1 and R2 are the same or different from each other, and independently are hydrogen, a linear or branched, saturated or unsaturated aliphatic hydrocarbon with 1-12 carbon atoms, a saturated or unsaturated alicyclic or heterocyclic hydrocarbon with 5-8 carbon atoms, a carbocyclic or heterocyclic aromatic hydrocarbon with 5-12 ring members or a chain-like or branched alkylether with 1-50 alkoxy units or a chain-like or branched alkylamine with 1-50 alkylamine units; and R3 is a linear or branched, saturated or unsaturated aliphatic hydrocarbon with 1-12 carbon atoms, a saturated or unsaturated alicyclic or heterocyclic hydrocarbon with 5-8 carbon atoms, a carbocyclic or heterocyclic aromatic hydrocarbon with 5-12 ring members or a chain-like or branched alkylether with 1-50 alkoxy units or a chain-like or branched alkylamine with 1-50 alkylamine units.
摘要:
The present invention concerns a composition containing: an aqueous dispersion of at least one phenol-formaldehyde resin; at least one amine compound, wherein the molecular mass of the amine compound does not exceed approximately 20 000 g/mole, at least one activated silane, as well as at least one aromatic hydroxyl compound. The composition may be employed as a formaldehyde-free binder for the manufacture of mineral wool.
摘要:
A method is provided for detecting not fully set coatings and liquid or smearing impurities on a surface, in which in a first step a film is pressed onto a surface of a coating using a predefined press-on pressure, the film having a relative motion with respect to the surface of the coating, thereafter the film is pulled off the surface of the coating and finally it is determined whether impurities are adhering to the film. A device is also provided for performing the method, including at least one film, which may be pressed against a surface to be tested, at least one press-on roller having a surface by which the film is pressed against the coating, and at least one device for determining whether there are impurities adhering to the film.
摘要:
The present invention concerns a composition containing: an aqueous dispersion of at least one phenol-formaldehyde resin; at least one amine compound, wherein the molecular mass of the amine compound does not exceed approximately 20 000 g/mole, at least one activated silane, as well as at least one aromatic hydroxyl compound. The composition may be employed as a formaldehyde-free binder for the manufacture of mineral wool.
摘要:
The invention relates to a method for treating wood or wood material surfaces with surface treatment agents and to the wood or wood materials treated by said method. Said method comprises the steps of a) impregnating wood, a wood material or a material for manufacturing a wood material with a hardenable aqueous composition, which contains at least one cross-linkable compound, selected from &agr;) low-molecular weight compounds V, having at least two N-bonded groups of formula CH2OH, wherein R=hydrogen or C1-C4 alkyl, and/or one 1,2-bishydroxyethan-1,2-diyl group, bridging two nitrogen atoms, &bgr;) precondensates of the compound V and ϝ) reaction products or mixtures of the compound V with at least one alcohol, selected from C1-C6 alkanols, C2-C6 polyols and oligoalkylene glycols, b) treating the material obtained in step a) at an elevated temperature and, optionally, transforming said material into a wood material and c) treating at least one surface of the wood or wood material to be treated with a surface treatment agent and, optionally, drying the treated surface in a manner known per se.