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    41.
    发明专利
    未知

    公开(公告)号：DE10156134A1

    公开(公告)日：2003-05-28

    申请号：DE10156134

    申请日：2001-11-16

    Applicant: BASF AG

    Inventor： BAUM PIA ,  MUELLER CHRISTINE ,  OSWALD ANKE ,  POTTHOFF-KARL BIRGIT

    IPC: C08F261/06 ,  C08F283/06 ,  C11D3/37 ,  C08F283/10

    Abstract: Graft polymer comprising (A) a polymeric graft skeleton, with no monoethylenic unsaturated units and (B) polymer sidechains formed by polymerisation of a cyclic N-vinylamide of general formula I, where R = C1-C5 alkyl and R = H or C1-C4 alkyl, wherein the proportion of the sidechains (B) comprises >/= 60 wt. % of the total polymer.

    Production of high-quality, high-brightness papermaking pulp, e.g. from recycled paper, uses an N-alkylammonium-acetonitrile salt as low temperature bleach activator for per compounds
    44.
    发明专利
    Production of high-quality, high-brightness papermaking pulp, e.g. from recycled paper, uses an N-alkylammonium-acetonitrile salt as low temperature bleach activator for per compounds 未知

    公开(公告)号：DE10153409A1

    公开(公告)日：2003-05-15

    申请号：DE10153409

    申请日：2001-10-30

    Applicant: BASF AG

    Inventor： WEINGART FRANZ ,  BRODT GREGOR ,  POTTHOFF-KARL BIRGIT ,  KINGMA AREND JOUKE

    IPC: D21C5/02 ,  D21C9/10 ,  D21C9/16 ,  D21C9/147

    Abstract: The bleaching activator used in a mixture for production of a papermaking pulp is an N-alkylammonium-acetonitrile salt. The bleaching activator used in a mixture for production of a papermaking pulp is an N-alkylammonium-acetonitrile salt of formula (I), the other components of the mixture being: (A) a pulp containing cellulose of vegetable origin, water and various materials depending on the method of pulp production; and (B) a bleach which is hydrogen peroxide, an alkali metal perborate or its hydrate, an alkali metal percarbonate, a persulfate or a typical oxygen bleach such as an organic peracid. R = 1-24C alkyl (optionally interrupted by non-adjacent O atoms and/or optionally OH-substituted), 4-24C cycloalkyl, 7-24C alkaryl or -CR R -CN; R and R = as for R or together form a 4- to 9-membered ring containing at least one C atom and also at least one O, S or N atom; R and R = H, 1-24C alkyl (optionally interrupted by non-adjacent O atoms and/or optionally OH-substituted), 4-24C cycloalkyl or 7-24C alkaryl; and Y = a sulfate, halide, methosulfate, tosylate or hydrogen sulfate anion. An Independent claim is also included for a de-inking formulation comprising the bleaching activator (I) together with: (i) an anionic and/or nonionic surfactant; (ii) an alkali source such as sodium hydroxide or silicate or silicon dioxide, optionally together with a complex-former and/or other additives; and (iii) a bleach as in (B) above.

    45.
    发明专利
    未知

    公开(公告)号：ES2163610T3

    公开(公告)日：2002-02-01

    申请号：ES96901284

    申请日：1996-01-17

    Applicant: BASF AG

    Inventor： GREINDL THOMAS ,  POTTHOFF-KARL BIRGIT ,  OFTRING ALFRED ,  FETZER THOMAS ,  BAUR RICHARD ,  TRIESELT WOLFGANG

    IPC: C07C217/50 ,  C07C227/02 ,  C07C229/16 ,  C07F9/38 ,  C11D3/33 ,  C11D3/34 ,  C11D3/36 ,  D21C9/10

    Abstract: PCT No. PCT/EP96/00169 Sec. 371 Date Jul. 28, 1997 Sec. 102(e) Date Jul. 28, 1997 PCT Filed Jan. 17, 1996 PCT Pub. No. WO96/22964 PCT Pub. Date Aug. 1, 1996The use of triacids of the formula I where X1 to X3 are, independently of one another, carboxylic acid groups of the formula COOM, sulfonic acid groups of the formula SO3M or phosphonic acid groups of the formula PO3M2, where M is hydrogen, alkali metal, ammonium or substituted ammonium, A1 to A3 are, independently of one another, 1,2-alkylene with 2 to 18 carbon atoms, R1 to R3 are, independently of one another, C1-C8-alkylene, and x, y and z are, independently of one another, a number from 0 to 10, where the total of x+y+z must be greater than or equal to 1, as complexing agents for complexing heavy metals or for preparing heavy metal complexes for changing the redox potential, and as builders in detergents and cleaners.

    46.
    发明专利
    未知

    公开(公告)号：AT205183T

    公开(公告)日：2001-09-15

    申请号：AT96901284

    申请日：1996-01-17

    Applicant: BASF AG

    Inventor： GREINDL THOMAS ,  POTTHOFF-KARL BIRGIT ,  OFTRING ALFRED ,  FETZER THOMAS ,  BAUR RICHARD ,  TRIESELT WOLFGANG

    IPC: C07C217/50 ,  C07C227/02 ,  C07C229/16 ,  C07F9/38 ,  C11D3/33 ,  C11D3/34 ,  C11D3/36 ,  D21C9/10

    Abstract: PCT No. PCT/EP96/00169 Sec. 371 Date Jul. 28, 1997 Sec. 102(e) Date Jul. 28, 1997 PCT Filed Jan. 17, 1996 PCT Pub. No. WO96/22964 PCT Pub. Date Aug. 1, 1996The use of triacids of the formula I where X1 to X3 are, independently of one another, carboxylic acid groups of the formula COOM, sulfonic acid groups of the formula SO3M or phosphonic acid groups of the formula PO3M2, where M is hydrogen, alkali metal, ammonium or substituted ammonium, A1 to A3 are, independently of one another, 1,2-alkylene with 2 to 18 carbon atoms, R1 to R3 are, independently of one another, C1-C8-alkylene, and x, y and z are, independently of one another, a number from 0 to 10, where the total of x+y+z must be greater than or equal to 1, as complexing agents for complexing heavy metals or for preparing heavy metal complexes for changing the redox potential, and as builders in detergents and cleaners.

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