PROCESS FOR PREPARING DYED MELAMINE-FORMALDEHYDE CONDENSATION PRODUCTS

    公开(公告)号:SK76897A3

    公开(公告)日:1998-09-09

    申请号:SK76897

    申请日:1995-12-13

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP95/04928 Sec. 371 Date Jun. 16, 1997 Sec. 102(e) Date Jun. 16, 1997 PCT Filed Dec. 13, 1995 PCT Pub. No. WO96/20229 PCT Pub. Date Jul. 4, 1996A process for preparing colored melamine-formaldehyde condensation products by: (A) dispersing a mixture consisting essentially of (a) a substituted melamine of the formula I I where X1, X2 and X3 are each as disclosed hereinafter, and (b) if desired, formaldehyde or formaldehyde-donating compounds in a molar ratio of formaldehyde to melamines I within the range from 40:1 to 0, (c) a pigment or dye, and mixing (d) if desired, phenol, unsubstituted or substituted. by intensive stirring until there are no longer any pigment agglomerates >/=1 mu m, and then (B) admixing the mixture prepared in (A) with melamine and if desired with further phenol, substituted melamine I and formaldehyde or formaldehyde-donating compounds, and condensing.

    Process for preparing dyed melamine-formaldehyde condensation products

    公开(公告)号:AU695156B2

    公开(公告)日:1998-08-06

    申请号:AU4344396

    申请日:1995-12-13

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP95/04928 Sec. 371 Date Jun. 16, 1997 Sec. 102(e) Date Jun. 16, 1997 PCT Filed Dec. 13, 1995 PCT Pub. No. WO96/20229 PCT Pub. Date Jul. 4, 1996A process for preparing colored melamine-formaldehyde condensation products by: (A) dispersing a mixture consisting essentially of (a) a substituted melamine of the formula I I where X1, X2 and X3 are each as disclosed hereinafter, and (b) if desired, formaldehyde or formaldehyde-donating compounds in a molar ratio of formaldehyde to melamines I within the range from 40:1 to 0, (c) a pigment or dye, and mixing (d) if desired, phenol, unsubstituted or substituted. by intensive stirring until there are no longer any pigment agglomerates >/=1 mu m, and then (B) admixing the mixture prepared in (A) with melamine and if desired with further phenol, substituted melamine I and formaldehyde or formaldehyde-donating compounds, and condensing.

    METHOD OF OBTAINING COLOURED PRODUCTS OF MELAMINE-FORMALDEHYDE RESIN CONDENSATION

    公开(公告)号:PL320876A1

    公开(公告)日:1997-11-10

    申请号:PL32087695

    申请日:1995-12-13

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP95/04928 Sec. 371 Date Jun. 16, 1997 Sec. 102(e) Date Jun. 16, 1997 PCT Filed Dec. 13, 1995 PCT Pub. No. WO96/20229 PCT Pub. Date Jul. 4, 1996A process for preparing colored melamine-formaldehyde condensation products by: (A) dispersing a mixture consisting essentially of (a) a substituted melamine of the formula I I where X1, X2 and X3 are each as disclosed hereinafter, and (b) if desired, formaldehyde or formaldehyde-donating compounds in a molar ratio of formaldehyde to melamines I within the range from 40:1 to 0, (c) a pigment or dye, and mixing (d) if desired, phenol, unsubstituted or substituted. by intensive stirring until there are no longer any pigment agglomerates >/=1 mu m, and then (B) admixing the mixture prepared in (A) with melamine and if desired with further phenol, substituted melamine I and formaldehyde or formaldehyde-donating compounds, and condensing.

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