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    Use of sunscreen combinations comprising, as essential constituent, amino-substituted hydroxybenzophenones as photostable UV filters in cosmetic and pharmaceutical preparations
    74.
    发明专利
    Use of sunscreen combinations comprising, as essential constituent, amino-substituted hydroxybenzophenones as photostable UV filters in cosmetic and pharmaceutical preparations 未知

    公开(公告)号：AU2800301A

    公开(公告)日：2001-09-20

    申请号：AU2800301

    申请日：2001-03-14

    Applicant: BASF AG

    Inventor： HEIDENFELDER THOMAS ,  WUNSCH THOMAS ,  HABECK THORSTEN

    IPC: A61K47/02 ,  A61K8/00 ,  A61K8/29 ,  A61K8/33 ,  A61K8/35 ,  A61K8/37 ,  A61K8/41 ,  A61K8/44 ,  A61K8/49 ,  A61K8/58 ,  A61K8/893 ,  A61K8/896 ,  A61K8/898 ,  A61K47/08 ,  A61K47/14 ,  A61K47/18 ,  A61K47/22 ,  A61K47/24 ,  A61Q1/00 ,  A61Q1/04 ,  A61Q1/06 ,  A61Q5/00 ,  A61Q17/04 ,  C08L83/06 ,  A61K7/44 ,  A61P39/00

    Abstract: A photostable ultraviolet (UV) filter for protecting human skin or hair against sunlight contains as UV-A absorbing components a combination of a hydroxybenzophenone (I), optionally together with a 4,4-diaryl-butadiene (II); and other UV protectant(s) i.e. dibenzoylmethane, triazine, benzotriazole, benzimidazole, tetrahydroxybenzophenone and/or organosiloxane-benzal malonate derivatives. Use of a light-protectant combination of a UV-A absorber and further UV-A and/or UV-B absorbers is claimed as a photostable UV-filter in cosmetic or pharmaceutical preparations for protecting human skin or hair against sunlight, optionally used together with other conventional light protectants. First UV light absorber is a hydroxybenzophenone of formula (I), optionally together with a 4,4-diaryl-butadiene of formula (II); and other UV protectants including 4-(R6)-4'-(R7)-dibenzoylmethane, 1,3,5-triazine derivatives of formula (III), 2,4,6-triphenyl-1,3,5-triazines, in which the phenyl rings are bonded with at least one o-hydroxy group and at least one p-(1-20C) alkoxy group, 2,2'-dihydroxy-3,3'-bis-(1,2,3-benzotriazol-2-yl)-5,5'-bis-(1,1,3,3-te tramethylbutyl)-diphenylmethane, 1,4-bis-(5,6-disulfo-benzimidazol-2-yl)-benzene or its salts, 2-(2-hydroxy-3-(2-methyl-4,4-bis-(trimethylsilyloxy)-4-silapentyl)-5-m ethyl)-1,2,3-benzotriazole, 2,2',4,4'-tetrahydroxybenzophenone and/or siloxanes of formula (IV). R1, R2 = H, 1-20C alkyl, 3-10C cycloalkyl or 3-10C cycloalkenyl; or NR1R2 = 5-6 membered ring; R3 = 1-20C alkyl; R4, R5 = H, 1-20C alkyl, 3-10C cycloalkyl or 3-10C cycloalkenyl; R6 = 1-12C alkyl; R7 = H, 1-12C alkyl or 1-12C alkoxy; R8-R10 = optionally substituted 1-20C alkyl, 5-10C aryl, 5-10C heteroaryl or -Sp-Sil; Sp = spacer; Sil = silane, oligosilane or polysiloxane residue; X = O or NR11; R11 = H or optionally substituted 1-20C alkyl, 5-10C aryl, 5-10C heteroaryl; V = 3-(4-(2,2-bis-(ethoxycarbonyl)-vinyl)-phenoxy)-prop-1-en-1-yl or 3-(4-(2,2-bis-(ethoxycarbonyl)-vinyl)-phenoxy)-prop-1-en-2-yl; V' = V or Me; t = up to 100; u = up to 20; provided that u = 0 if V' = V or u = 1-20 if V' = Me. An Independent claim is also included for cosmetic or pharmaceutical preparations for protecting human epidermis or hair against UV light in the 280-400 nm range, comprising the UV absorbing combination, a carrier and optionally other conventional light protectants.

    PROCESS FOR THE ACID DIGESTION OF METAL-CONTAINING COMPOUNDS
    77.
    发明专利
    PROCESS FOR THE ACID DIGESTION OF METAL-CONTAINING COMPOUNDS 未知

    公开(公告)号：CA2644671A1

    公开(公告)日：2007-09-07

    申请号：CA2644671

    申请日：2007-02-28

    Applicant: BASF AG

    Inventor： SEELMANN-EGGEBERT HANS-PETER ,  WITTELER HELMUT ,  LAUBUSCH BERND ,  HEIDENFELDER THOMAS

    IPC: C22B3/00 ,  C22B15/00

    Abstract: Aqueous leachant compositions and processes for using the same comprising: (a) providing a metal-containing compound; and (b) subjecting the metal-containing compound to an acid digestion comprising contacting the metal-containing compound with an aqueous leachant; wherein the aqueous leachant comprises a mixture selected from the group consisting of: (i) sulfuric acid and one or more alkanesulfonic acids having alkane moieties selected from the group consisting of propyl, ethyl and methyl groups, at a weight ratio of alkanesulfonic acid to sulfuric acid of 1:1000 to 1:1; (ii) sulfuric acid and one or more salts of alkanesulfonic acids having alkane moieties selected from the group consisting of propyl, ethyl and methyl groups, at a weight ratio of salt of alkanesulfonic acid to sulfuric acid of 1:9 to 1:99.

    Treating metal surfaces with two polymers, useful e.g. for temporary corrosion protection, one based on heterocylic monomer containing nitrogen and the other containing acid groups
    79.
    发明专利
    Treating metal surfaces with two polymers, useful e.g. for temporary corrosion protection, one based on heterocylic monomer containing nitrogen and the other containing acid groups 未知

    公开(公告)号：DE102005015478A1

    公开(公告)日：2006-10-05

    申请号：DE102005015478

    申请日：2005-04-04

    Applicant: BASF AG

    Inventor： WITTELER HELMUT ,  HEIDENFELDER THOMAS ,  FRIEDRICH RALF ,  BERTKAU WALTER

    IPC: B05D7/16 ,  B05D5/06 ,  C23F11/173

    Abstract: Method for treating a metal surface (S) with a formulation (F) containing at least water (or an aqueous solvent mixture) and at least two different polymers (A) and (B). Method for treating a metal surface (S) with a formulation (F) containing at least water (or an aqueous solvent mixture) and at least two different polymers (A) and (B). (A) comprises, by weight, 50-100% monoethylenically unsaturated monomer (A1) that includes a 5-7 membered N-heterocycle with 1-3 N atoms and/or its salt, and 0-50% a second, different ethylenically unsaturated monomer (A2). (B) comprises, by weight, 50-95% monoethylenically unsaturated hydrocarbon (B1); 5-50% monoethylenically unsaturated monomer (B2) containing acid (or its anhydride or salt) groups; and 0-10% of a different ethylenically unsaturated monomer (B3). The total of (A) and (B) is at least 70wt.% of the total formulation (free of water or solvent mixture). An independent claim is included for a metal surface coated with (F).

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