21.
    发明专利
    未知

    公开(公告)号:DE102004035075A1

    公开(公告)日:2006-02-16

    申请号:DE102004035075

    申请日:2004-07-20

    Applicant: BASF AG

    Abstract: Process for the preparation of an aqueous styrene/butadiene polymer dispersion by free radical aqueous emulsion polymerization of a monomer mixture M comprising from 30 to 80% by weight of styrene, from 20 to 70% by weight of butadiene and from 0 to 40% by weight of at least one ethylenically unsaturated comonomer differing from styrene and butadiene, based in each case on the total amount of the monomer mixture I, by a monomer feed process in the presence of a noncopolymerizable hydroperoxide of the general formula R-O-O-H as a regulator, in which the monomer mixture M is fed to the polymerization vessel in the course of 4 hours.

    22.
    发明专利
    未知

    公开(公告)号:DE50205067D1

    公开(公告)日:2005-12-29

    申请号:DE50205067

    申请日:2002-11-20

    Applicant: BASF AG

    Abstract: Amplification medium for solid state dye laser with a solid active medium containing at least one type of particle (I) that can be activated and stimulated to emit laser light of a certain wavelength range, and optical feedback, which defines a resonator for the laser light and comprises a solid feedback medium (II) with a periodic structure. (II) is a polymeric dispersion film with a crystalline structure. An Independent claim is also included for a solid state dye laser using the amplification medium and a pump mechanism for stimulating (I).

    23.
    发明专利
    未知

    公开(公告)号:BR0214128A

    公开(公告)日:2004-10-13

    申请号:BR0214128

    申请日:2002-11-20

    Applicant: BASF AG

    Abstract: Amplification medium for solid state dye laser with a solid active medium containing at least one type of particle (I) that can be activated and stimulated to emit laser light of a certain wavelength range, and optical feedback, which defines a resonator for the laser light and comprises a solid feedback medium (II) with a periodic structure. (II) is a polymeric dispersion film with a crystalline structure. An Independent claim is also included for a solid state dye laser using the amplification medium and a pump mechanism for stimulating (I).

    24.
    发明专利
    未知

    公开(公告)号:DE10218418A1

    公开(公告)日:2003-11-06

    申请号:DE10218418

    申请日:2002-04-24

    Applicant: BASF AG

    Abstract: Aqueous polymer dispersions which are obtainable by free radical copolymerization of (a) from 0.1 to 99.9% by weight of styrene and/or methylstyrene, (b) 0.1-99.9% by weight of 1,3-butadiene and/or isoprene and (c) from 0 to 40% by weight of other ethylenically unsaturated copolymerizable monomers, the sum of the monomers (a), (b) and (c) always being 100, in the presence of from 10 to 40% by weight, based on the monomers used, of at least one degraded starch having a molecular weight Mn of from 500 to 40 000 and of water-soluble redox catalysts are prepared by free radical copolymerization of the monomers (a), (b) and, if required, (c) in an aqueous medium in the presence of a degraded starch having a molecular weight Mn of from 500 to 10 000 and redox initiators and are used as engine sizes and surface sizes for paper.

    Polymerpigmenthybride for anvendelse ved papirfremstilling

    公开(公告)号:NO20075988L

    公开(公告)日:2007-12-20

    申请号:NO20075988

    申请日:2007-11-23

    Applicant: BASF AG

    Abstract: Fremgangsmåte for fremstilling av papir og papirprodukter inneholdende fyllstoff, ved tilsetning av en vandig suspensjon av minst ett findelt polymerpigmenthybrid til en papirmasse og drenering av papirmassen med dannelse av ark, der polymerpigmenthybridet kan oppnås ved finmaling av en vandig suspensjon av minst ett uorganisk pigment i nærvær av minst ett bindemiddel, og, hvis hensiktsmessig, ved tørking av den vandige suspensjonen som oppnås ved å finfordele det tørkete polymerpigmenthybridet igjen i vann, samt anvendelse av polymerpigmenthybrider, som oppnås på denne måten, som et fyllstoff for fremstilling av papir og papirprodukter inneholdende fyllstoff.

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