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.

    49.
    发明专利
    未知

    公开(公告)号:PT1137679E

    公开(公告)日:2005-03-31

    申请号:PT99971821

    申请日:1999-10-30

    Applicant: BASF AG

    Abstract: Aqueous dispersions of water-soluble polymers of N-vinylcarboxamides contain, based on 100 parts of water, (A) from 5 to 80 parts by weight of water-soluble polymer containing N-vinylformamide units and/or N-vinylacetamide units and having particle sizes of from 50 nm to 2 mum and (B) from 1 to 50 parts by weight of at least one polymeric dispersant which is incompatible with the water-soluble polymers (A) in aqueous solution, which dispersions are prepared by polymerizing (A) from 5 to 80 parts by weight of N-vinylformamide and/or N-vinylacetamide, if desired together with other monoethylenically unsaturated monomers which form water-soluble polymers therewith, and (B) from 1 to 50 parts by weight of at least one polymeric dispersant which is incompatible with the polymers, formed from the monomers (A), in aqueous solution, in 100 parts by weight of water, at from 30 to 95° C. in the presence of from 0.001 to 5.0% by weight, based on the monomers used, and the aqueous dispersions of water-soluble polymers are used as drainage aids, flocculants and retention aids and as wet and dry strength agents and as fixing compositions in papermaking.

    50.
    发明专利
    未知

    公开(公告)号:DE59911207D1

    公开(公告)日:2005-01-05

    申请号:DE59911207

    申请日:1999-10-30

    Applicant: BASF AG

    Abstract: Aqueous dispersions of water-soluble polymers of N-vinylcarboxamides contain, based on 100 parts of water, (A) from 5 to 80 parts by weight of water-soluble polymer containing N-vinylformamide units and/or N-vinylacetamide units and having particle sizes of from 50 nm to 2 mum and (B) from 1 to 50 parts by weight of at least one polymeric dispersant which is incompatible with the water-soluble polymers (A) in aqueous solution, which dispersions are prepared by polymerizing (A) from 5 to 80 parts by weight of N-vinylformamide and/or N-vinylacetamide, if desired together with other monoethylenically unsaturated monomers which form water-soluble polymers therewith, and (B) from 1 to 50 parts by weight of at least one polymeric dispersant which is incompatible with the polymers, formed from the monomers (A), in aqueous solution, in 100 parts by weight of water, at from 30 to 95° C. in the presence of from 0.001 to 5.0% by weight, based on the monomers used, and the aqueous dispersions of water-soluble polymers are used as drainage aids, flocculants and retention aids and as wet and dry strength agents and as fixing compositions in papermaking.

Patent Agency Ranking