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    EMISSIO-POOR MODIFIERS FOR MELAMINE-IMPREGNATING RESINS AND RESIN COMPOUNDS CONTAIN THEM
    6.
    发明专利
    EMISSIO-POOR MODIFIERS FOR MELAMINE-IMPREGNATING RESINS AND RESIN COMPOUNDS CONTAIN THEM 未知

    公开(公告)号：HU9802284D0

    公开(公告)日：1998-12-28

    申请号：HU9802284

    申请日：1998-10-09

    Applicant: HOECHST AG

    Inventor： DOERRIES PETER ,  WONNER JOHANN

    IPC: C07D207/38 ,  C07D211/40 ,  C07D223/10 ,  C07D225/02 ,  C07D227/087 ,  C08G12/26 ,  C08L61/32 ,  D21H17/51

    Abstract: The preparation of N-alkoxymethyl-lactams by reaction of a lactam, formaldehyde and a hydroxyl group containing compound is novel. An N-alkoxymethyl-lactam (I) of formula (1) is formed by reaction of 1 mole of a lactam (II) of formula (2) with 1-4 moles of formaldehyde (III) and 0.5-6 moles of hydroxyl group containing compounds (IV) consisting of diols and/or diol monoether s of formula (3) or (4). (1) (2) (3) (4) X = -(OCH2-CR H)m - OR or -O-(CH2)n-OR R , R , R = H or 1-6C alkyl l = 3-12 m = 1-20 n = 2-8 Independent claims are included for (i) a process for the production of (I) by mixing (II), (III) and (IV) in a molar ratio of 1:4:0.5-6 in the presence of an acid catalyst at 50-200 degrees C in a single step. (ii) a mixture resulting from the process, containing (I), a N-methylol lactam of formula (5) and an N, N'-methylene bis lactam of formula (6) (iii) a melamine impregnating resin composition containing 1-20 wt.% (with respect to solid melamine resin), (I) or the mixture (ii) as a modifying agent. (5) (6)

    Composite useful as insulation in electronics and thermal insulation
    7.
    发明专利
    Composite useful as insulation in electronics and thermal insulation 未知

    公开(公告)号：DE19533565A1

    公开(公告)日：1997-03-13

    申请号：DE19533565

    申请日：1995-09-11

    Applicant: HOECHST AG

    Inventor： SCHWERTFEGER FRITZ ,  ZIMMERMAN ANDREAS ,  WONNER JOHANN ,  SCHOLL FRANK ,  SCHMIDT MARC

    IPC: C04B14/06 ,  C04B30/02 ,  C08K7/26 ,  C08K3/36 ,  C08L61/00 ,  F16L59/00

    Abstract: In a composite material contg. 10-97 vol.% aerogel particles and adhesive(s). The dia. of the aerogel particles is less than 0.5 mm. Also claimed is a method of making the composite. Pref. the adhesive is a phenol-, resorcinol-, urea- and/or melamine-HCHO resin. The aerogel is used in a fraction of 40-95 vol.% and has a particle dia. of less than 0.2 mm, esp. with bimodal distribution. It esp. is a SiO2 aerogel, more esp. with permanently hydrophobic gps. on the surface. Its porosity is more than 60% and density less than 0.6 g/cm . The composite may also contain fillers. The composite material has a density of less than 0.6 g/cm and thermal conductivity of less than 100 mW/m.K. It esp. has hydrophobic surface(s).

    EMISSION POOR MODIFIERS FOR MELAMINE-IMPREGNATING RESINS AND RESIN COMPOUNDS CONTAIN THEM
    8.
    发明专利
    EMISSION POOR MODIFIERS FOR MELAMINE-IMPREGNATING RESINS AND RESIN COMPOUNDS CONTAIN THEM 未知

    公开(公告)号：HU9802284A2

    公开(公告)日：1999-07-28

    申请号：HU9802284

    申请日：1998-10-09

    Applicant: HOECHST AG

    Inventor： DOERRIES PETER ,  WONNER JOHANN

    IPC: C07D207/38 ,  C07D211/40 ,  C07D223/10 ,  C07D225/02 ,  C07D227/087 ,  C08G12/26 ,  C08L61/32 ,  D21H17/51 ,  C07D201/00 ,  C08K5/16 ,  C08L61/00

    Abstract: The preparation of N-alkoxymethyl-lactams by reaction of a lactam, formaldehyde and a hydroxyl group containing compound is novel. An N-alkoxymethyl-lactam (I) of formula (1) is formed by reaction of 1 mole of a lactam (II) of formula (2) with 1-4 moles of formaldehyde (III) and 0.5-6 moles of hydroxyl group containing compounds (IV) consisting of diols and/or diol monoether s of formula (3) or (4). (1) (2) (3) (4) X = -(OCH2-CR H)m - OR or -O-(CH2)n-OR R , R , R = H or 1-6C alkyl l = 3-12 m = 1-20 n = 2-8 Independent claims are included for (i) a process for the production of (I) by mixing (II), (III) and (IV) in a molar ratio of 1:4:0.5-6 in the presence of an acid catalyst at 50-200 degrees C in a single step. (ii) a mixture resulting from the process, containing (I), a N-methylol lactam of formula (5) and an N, N'-methylene bis lactam of formula (6) (iii) a melamine impregnating resin composition containing 1-20 wt.% (with respect to solid melamine resin), (I) or the mixture (ii) as a modifying agent. (5) (6)

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