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    12.
    发明专利
    未知

    公开(公告)号：PT88676B

    公开(公告)日：1992-12-31

    申请号：PT8867688

    申请日：1988-10-04

    Applicant: BASF AG

    Inventor： SCHMIDT-HELLERAU CHRISTOF ,  MAYER JOHANN

    IPC: B27N1/00 ,  C08L97/02

    Abstract: Wood materials with reduced subsequent release of formaldehyde can advantageously be produced by mixing lignocellulose-containing particles, for example wood chippings, with a curable binder based on curable aminoplastic condensates and subsequently pressing the mixture with heating, a mixture A containing a water-compatible agent for binding formaldehyde to the particles being applied or mixed with the particles before the particles are mixed with the curable binder, to give good resin reactivity, high strength and good swelling values if the mixture A is an aqueous solution having a pH of from 3.0 to 6.5 which contains a) organic acids which do not attack wood, or only do so to an insignificant extent, in an amount of greater than 15 % by weight, based on the solids content of the solution, preferably mixtures of aliphatic carboxylic acids having 4 to 10 carbon atoms, and b) a formaldehyde-binding, nitrogen-containing compound, in particular urea.

    14.
    发明专利
    未知

    公开(公告)号：DK554088D0

    公开(公告)日：1988-10-04

    申请号：DK554088

    申请日：1988-10-04

    Applicant: BASF AG

    Inventor： SCHMIDT-HELLERAU CHRISTOF ,  MAYER JOHANN

    IPC: B27N1/00 ,  C08L97/02 ,  B27N3/00 ,  C08L61/20

    Abstract: Wood materials with reduced subsequent release of formaldehyde can advantageously be produced by mixing lignocellulose-containing particles, for example wood chippings, with a curable binder based on curable aminoplastic condensates and subsequently pressing the mixture with heating, a mixture A containing a water-compatible agent for binding formaldehyde to the particles being applied or mixed with the particles before the particles are mixed with the curable binder, to give good resin reactivity, high strength and good swelling values if the mixture A is an aqueous solution having a pH of from 3.0 to 6.5 which contains a) organic acids which do not attack wood, or only do so to an insignificant extent, in an amount of greater than 15 % by weight, based on the solids content of the solution, preferably mixtures of aliphatic carboxylic acids having 4 to 10 carbon atoms, and b) a formaldehyde-binding, nitrogen-containing compound, in particular urea.

    Liq. colourant contg. soluble dyestuff, pigment powder and solvent - useful in aq. or non-aq. medium, esp. glue or shoe cream
    16.
    发明专利
    Liq. colourant contg. soluble dyestuff, pigment powder and solvent - useful in aq. or non-aq. medium, esp. glue or shoe cream 未知

    公开(公告)号：DE3038683A1

    公开(公告)日：1982-06-03

    申请号：DE3038683

    申请日：1980-10-14

    Applicant: BASF AG

    Inventor： DERBER BERND ING GRAD ,  SCHMIDT-HELLERAU CHRISTOF ,  SENNINGER RUDOLF DIPL CHEM DR

    IPC: C09B67/46 ,  C09B67/22 ,  C09B67/42 ,  C03C17/00 ,  C09J3/00 ,  D21H1/22

    Abstract: Liquid colourant contains soluble dyestuff(s) (I), finely-divided pigment(s) (II), solvent (III) and opt. dispersant. Pref. (I) is an anionic or cationic dyestuff (esp. an anionic azo dyestuff or phthalocyanine deriv. or a cationic dyestuff of the azo, triarylmethane or xanthene series and (III) a water and/or water-soluble solvent and opt. organic acid; or (I) is readily soluble in organic solvents (and pref. is a nonionic cpd. of a solvent dyestuff or a cationic or anionic dyestuff rendered soluble in organic solvents by suitable anions or cations) and (III) is an organic solvent. (II) is pref. C black, Fe oxide, an azo cpd. or phthalocyanine. The colourant is very good for aq. and non-aq. media, esp. glues (used in chipboard mfr.) and shoe creams and also paper and wood impregnants, plant protectives, fertilisers, impregnants for glass fibres, jute felt and carpet underlays, printing ink, wax polishes, candles and lacquers. It is homogeneous and more economical than usual and can be stored without sepn. occuring.

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