41.
    发明专利
    未知

    公开(公告)号:NO972888D0

    公开(公告)日:1997-06-20

    申请号:NO972888

    申请日:1997-06-20

    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.

    42.
    发明专利
    未知

    公开(公告)号:FI972679A0

    公开(公告)日:1997-06-19

    申请号:FI972679

    申请日:1997-06-19

    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.

    New bis:cyan-imino di:hydro thieno-thiophene cpds. - their charge transfer complex and radical anion salt cpd., used e.g. as electrostatic or electrode

    公开(公告)号:DE3917323A1

    公开(公告)日:1990-11-29

    申请号:DE3917323

    申请日:1989-05-27

    Applicant: BASF AG

    Abstract: 2, 5-biscyanimino-2, 5 -dihydrothieno(3, 2-b)thiophene cpds. of formula (I) are new. Also new are charge transfer complexes (II) of (I) and fulvalene cpds. (III) in 1:1, 2:1, 3:2, 1:2 or 2:3 molar ratio; and new radical anion salts (IV) derived from (I), of the formulae:. In the formulae R1-2 = H, C1, Br, I, 1-20 C alkyl, 1-8 C alkoxy or a phenyl gp. (opt. substd. by 1-4 C alkyl, 1-4 C alkoxy, C1 or Br); R5-8= H, Me or Et; or R5/R6 and/or R7/R8= a gp. of the formula (v) (vi) etc. X and Y + S or Se; Mme = an m-valent alkali metal, Cu, Ag, T1, ammonium or phosphonium ion; 1 and n = 1-3; m = 1 or 2; z = 0-2; k, 1, m, n and z may be fractions and (1 + z) = n.m. USE/ADVANTAGE - (II) and (IV) are claimed for use for antistatic finishing of plastics, as electrode and storage materials in electric batteries, for the prodn. of solar cells, in fuel cells, for the conversion of radiation or for the prodn. of electronic devices.

    PROCESS FOR PREPARING DYED MELAMINE-FORMALDEHYDE CONDENSATION PRODUCTS

    公开(公告)号:CA2208527C

    公开(公告)日:2005-05-03

    申请号:CA2208527

    申请日:1995-12-13

    Applicant: BASF AG

    Abstract: Dyed melamine-formaldehyde condensation products are prepared by mixing pigments or dyes with a reaction mixture that contains base compounds for preparing melamine-formaldehyde condensation products. For that purpose (A) a mixture is used that substantially consists of (a) a substituted melamine having the formula (I), in which X1, X2 and X3 are selected from the group that consists of -NH2, -NHR1 and NR1R2, and X1, X2 and X3 are not -NH2 simultaneously, and R1 and R2 are selected from the group that consists of hydroxy-C2-C10-alkyl, hydroxy-C2-C4-alkyl-(oxa-C2-C4-alkyl)n, n being equal to 1 to 5, and amino-C2-C12-alkyl, or mixtures of melamines (I); and optionally (b) formaldehyde or formaldehyde releasing compounds, th e molar ratio between formaldehyde and the melamines (I) being selected in a range from 40:1 to 0; (c) a pigment or a dye; and optionally (d) an unsubstituted phenol or phenols substituted with residues selected from the group that consists of C1-C9-alkyl and hydroxy, substituted phenols, C1-C4-alkanes substituted with two or three phenol groups, di(hidroxyphenyl)sulfones or mixtures of such phenols. The amount of pigment or dye ranges from 0.01 to 30 % by weight in relation to (a) and (b), and the amount of phenol ranges from 0 to 5 mol % in relation to (a) and (b). Said mixture is dispersed under intensive stirring until no more pigment agglomerates equal to or larger tha n 1 .mu.m are present. The mixture produced in (A) is then (B) mixed with melamine and if desired with more phenol, substituted melamine (I ) and formaldehyde or formaldehyde releasing compounds, their respective amounts being selected so that the molar ratio between melamines (melamine and (a)) and (b) ranges from 1:1.15 to 1:4.5, the amount of pigment or dye ranges from 0.01 to 5 % by weight in relation t o melamine, (a) and (b), and the amount of phenol ranges from 0 to 5 mol % in relation to melamine, (a) and (b). The mixture is then condensed in a known manner.

    50.
    发明专利
    未知

    公开(公告)号:AT228924T

    公开(公告)日:2002-12-15

    申请号:AT98947430

    申请日:1998-08-13

    Applicant: BASF AG

    Abstract: The invention relates to a continuous process for preparing aminoplastics and/or phenolics, in which a precondensate solution is prepared in a first extruder (14), the precondensate solution is continuously fed, with addition of additives, to a second extruder (20) with partial filling in the feed section (E) and devolatilization section (G), devolatilized in the second extruder (20) and then formed to give a molding composition or an end product. The process is particularly suitable for preparing melamine resins, in particular melamine-formaldehyde resins, as well as for preparing urea-formaldehyde resins.

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