71.
    发明专利
    未知

    公开(公告)号:AT276026T

    公开(公告)日:2004-10-15

    申请号:AT99950707

    申请日:1999-10-12

    Applicant: BASF AG

    Abstract: Countercurrent stripping pipe for removing volatile organic constituents from reaction products, having a column pipe ( 201 ) composed of a plurality of pipe sections ( 201 a-d), in which trays ( 202 ) are arranged, connections ( 205, 208 ) for supplying and removing the reaction products and connections ( 206, 207 ) for supplying and removing at least one stripping agent in countercurrent to the reaction products. In accordance with the invention, a plurality of successive trays ( 202 ) in each case are joined to one another and form at least two inserts ( 211 a-c) which can be removed from the column pipe ( 201 ).

    72.
    发明专利
    未知

    公开(公告)号:DE10219508A1

    公开(公告)日:2003-11-13

    申请号:DE10219508

    申请日:2002-04-30

    Applicant: BASF AG

    Abstract: A process for preparing high-functionality hyperbranched polyesters which comprises reacting (a) one or more dicarboxylic acids or one or more derivatives thereof with one or more at least trifunctional alcohols or (b) one or more tricarboxylic acids or higher polycarboxylic acids, or one or more derivatives thereof with one or more diols in the presence of a solvent and optionally in the presence of an inorganic, organometallic or low molecular mass organic catalyst.

    74.
    发明专利
    未知

    公开(公告)号:ES2176665T3

    公开(公告)日:2002-12-01

    申请号:ES97900552

    申请日:1997-01-02

    Applicant: BASF AG

    Abstract: The invention concerns radiation-hardenable coatings processed from melt, solution or dispersion and containing as binders copolymers comprising the following: a) at least one monomer of either the general formula (I) CH2 = C(R )-CO-OR , in which R stands for H, CH3 or C2H5 and R stands for H, CnH2n+1, n being 1-30, an alicyclic, araliphatic or heterocyclic group, a hydroxyalkyl-, alkoxyalkyl-, glycidyl- or aminoalkyl group, or of the general formula (II) CH2 = C(R )-CO-NR R , in which R stands for H or CH3, R and R can be identical or different and stand for H, CH2OH, CnH2n+1, n being 1-30, or CH2OR , R standing for CmH2m+1 and m being 1-12; and b) at least one copolymerisable ethylenically unsaturated organic compound of general formula (A), in which R' and R'' can be identical or different and stand for H or CpH2p+1, p being 1-6, cycloalkyl, aryl or aralkyl, and R''' stands for an acryloyl, methacryloyl, ethacryloyl or cinnamyloyl group and this compound can be partially replaced by one or more other copolymerisable ethylenically unsaturated organic compounds different from (a) and (b).

    Methine and azamethine dyes based on trifluoromethyl-substituted 5-membered heterocycles

    公开(公告)号:GB2337527A

    公开(公告)日:1999-11-24

    申请号:GB9911314

    申请日:1999-05-14

    Applicant: BASF AG

    Abstract: Dyes of the formula Q - X = Het where X is nitrogen or CH, Q is a 5- or 6-membered carbocyclic or heterocyclic radical and Het is a radical of the formula where Y is oxygen, sulfur, imino, C 1 -C 4 -alkylimino, substituted or unsubstituted phenylimino or the radical of an acidic-CH compound, A is nitrogen or a radical of the formula C - U (where U is hydrogen, optionally substituted C 1 -C 13 -alkyl (with or without interruption by 1 to 3 oxygen atoms in ether function), halogen, cyano or C 1 -C 13 -alkoxycarbonyl), and E is oxygen, sulfur, selenium, imino, C 1 -C 4 -alkylimino or substituted or unsubstituted phenylimino, are useful for thermal transfer by diffusion or sublimation onto a polymer coated paper and for dyeing or printing synthetic materials. Specific dyes, where Q is selected from formulae IIa to III as defined in claim 1, are claimed per se.

    80.
    发明专利
    未知

    公开(公告)号:DE59503864D1

    公开(公告)日:1998-11-12

    申请号:DE59503864

    申请日:1995-02-20

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP95/00607 Sec. 371 Date Feb. 28, 1997 Sec. 102(e) Date Feb. 28, 1997 PCT Filed Feb. 22, 1995 PCT Pub. No. WO95/33775 PCT Pub. Date Dec. 14, 1995Described is a method of producing an aqueous polymer dispersion, the method calling for further polymerization of the dispersion using a radical mechanism redox initiator system including as the reducing agent the addition compound obtained between a lower ketone and hydrogen sulphite.

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