81.
    发明专利
    未知

    公开(公告)号:DE59301914D1

    公开(公告)日:1996-04-18

    申请号:DE59301914

    申请日:1993-09-23

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP93/02580 Sec. 371 Date Mar. 15, 1995 Sec. 102(e) Date Mar. 15, 1995 PCT Filed Sep. 23, 1993 PCT Pub. No. WO94/08092 PCT Pub. Date Apr. 14, 1994A process for dyeing paper in connection with paper manufacture by adding water-soluble anionic dyes and cationic polymers which contain vinylamine units to the paper pulp as fixing agents and removing water from the paper pulp with the formation of dyed paper is described.

    82.
    发明专利
    未知

    公开(公告)号:FI951516A

    公开(公告)日:1995-03-30

    申请号:FI951516

    申请日:1995-03-30

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP93/02580 Sec. 371 Date Mar. 15, 1995 Sec. 102(e) Date Mar. 15, 1995 PCT Filed Sep. 23, 1993 PCT Pub. No. WO94/08092 PCT Pub. Date Apr. 14, 1994A process for dyeing paper in connection with paper manufacture by adding water-soluble anionic dyes and cationic polymers which contain vinylamine units to the paper pulp as fixing agents and removing water from the paper pulp with the formation of dyed paper is described.

    AQUEOUS ALKYLDIKETENE DISPERSIONS AND THEIR USE AS SIZE FOR PAPER

    公开(公告)号:CA2231541C

    公开(公告)日:2005-04-05

    申请号:CA2231541

    申请日:1996-10-25

    Applicant: BASF AG

    Abstract: The invention concerns aqueous alkyldiketene dispersions containing an alkyldiketene, cationic starch with an amylopectin content of at least 95 % by wt. and the following anionic dispersants: (a) 0.05 to 1 .0 % by wt. of lignin sulphonic acid, condensation products of naphtalene sulphonic acid and formaldehyde, sulphonated polystyrene or salts or mixtures of such polymers and (b) 0.05 to 1.5 % by wt. of sulphuric acid half esters of alcohols with at least 10 C-atoms, mono- or diphosphoric acid half esters of alkoxylated alcohols with at least C-atoms, sulphuric acid half esters of alkoxylated alcohols with at least 10 C- atoms, mono- or diphosphoric acid esters of alkoxylated alcohols with at least 10 C-atoms, C12-C30 alkyl sulphonic acids or salts or mixtures of such compounds. The invention also concerns the use of such alkyldiketene dispersions as bulk size in the manufacture of paper, paperboard and cardboard, as well as in making cellulose fibres water-repellent.

    90.
    发明专利
    未知

    公开(公告)号:ES2208309T3

    公开(公告)日:2004-06-16

    申请号:ES00920549

    申请日:2000-03-23

    Applicant: BASF AG

    Abstract: A process for modifying starch by heating starch in an aqueous medium to temperatures above the gelatinization temperature of said starch comprises effecting said modifying of said starch in the presence of(a) a polymeric cationizer selected from the group consisting of the polymers containing vinylamine units and having molar masses of up to 1 million, the polyethyleneimines, the polydiallyldimethylammonium chlorides, the condensates of dimethylamine with epichlorohydrin or dichloroalkanes, the condensates of dichloroethane and ammonia, and the mixtures thereof, and(b) polymeric papermaking drainage aids selected from the group consisting of the water-soluble crosslinked polyamidoamines with or without an ethyleneimine graft, the polymers containing acrylamide and/or methacrylamide units and having molar masses of more than 1 million, the polymers containing vinylamine units and having molar masses of more then 1 million, and the mixtures thereof.

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