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    81.
    发明专利
    未知

    公开(公告)号：FI910252A0

    公开(公告)日：1991-01-17

    申请号：FI910252

    申请日：1991-01-17

    Applicant: BASF AG

    Inventor： KSOLL PETER ,  HAHN ERWIN ,  WITTMER PETER ,  HOHMANN ANDREAS ,  DE CLERCQ ARNOLD ,  RIEBELING ULRICH

    IPC: B01J13/00 ,  C09K23/00 ,  C07C45/90 ,  C07C49/88 ,  C07D305/12 ,  C07D315/00 ,  D21H17/06 ,  D21H17/07 ,  D21H17/17 ,  D21H17/46 ,  D21H21/14 ,  C07C

    Abstract: Stabilised aqueous C14- to C22-alkyldiketene emulsions containing, as essential components, (a) 10 to 60 % by weight of at least one C14- to C22-alkyldiketene, (b) 1 to 10 % by weight of at least one protective colloid and (c) 0.1 to 20 % by weight of at least one ester of the formula in which R , R are C14- to C22-alkyl, in which case R and R must differ in the alkyl group by at least 4 C atoms, and/or denote identical or different C14- to C22-alkenyl groups, an ester of the formula R -O-CO-O-R (II), in which R and R are alkyl or alkenyl radicals having 2 to 22 C atoms or a urethane of the formula in which R , R and R are identical or different alkyl or alkenyl radicals having 2 to 22 C atoms, and the use of the compounds of the formula I to III as stabiliser for the preparation of alkyldiketene emulsions containing at least 10, preferably 16 to 40 % by weight of alkyldiketene in emulsified form.

    84.
    发明专利
    未知

    公开(公告)号：DE3730887A1

    公开(公告)日：1989-03-23

    申请号：DE3730887

    申请日：1987-09-15

    Applicant: BASF AG

    Inventor： AUHORN WERNER ,  DEGEN HANS-JUERGEN DR ,  HOEHR LOTHAR DR ,  RIEBELING ULRICH

    IPC: D21H19/36 ,  D21H19/44 ,  D21H19/54 ,  D21H19/58

    Abstract: Process for improving the printability of paper by a single- or two-sided application of aqueous coating materials consisting of a) 100 parts by weight of a finely dispersed pigment b) 5 to 70 parts by weight (based on solids) of a cationic aqueous polymer dispersion of a paper size and c) 0.01 to 10 parts by weight of a surfactant which interferes with the formation of the surface sizing and/or of a polymeric dispersant to the surface of the paper in a quantity of 0.5 to 4 g/m and drying the coated paper.

    88.
    发明专利
    未知

    公开(公告)号：FI873236A

    公开(公告)日：1988-02-15

    申请号：FI873236

    申请日：1987-07-23

    Applicant: BASF AG

    Inventor： DEGEN HANS-JUERGEN ,  REICHEL FRITZ ,  RIEBELING ULRICH ,  HOEHR LOTHAR

    IPC: C08F220/12 ,  C08F2/22 ,  C08F2/24 ,  C08F220/10 ,  C08F220/18 ,  C08F220/42 ,  C08F251/00 ,  C08F290/00 ,  D21H17/28 ,  D21H17/37 ,  D21H17/55 ,  D21H21/16 ,  C08F

    Abstract: Sizes for paper are based on finely divided aqueous dispersions of copolymers which are obtainable by copolymerization of from 10 to 56 parts by weight of a monomer mixture of (a) from 20 to 65% by weight of (meth)acrylonitrile, (b) from 35 to 80% by weight of one or more acrylates of monohydric, saturated C3-C8-alcohols and (c) from 0 to 10% by weight of other ethylenically unsaturated copolymerizable monomers by an emulsion polymerization method in 100 parts by weight of an aqueous solution of from 1.7 to 25% by weight of a degraded starch having a viscosity eta i of from 0.12 to 0.50 dl/g, at from 40 DEG to 100 DEG C. in the presence of a peroxide-containing initiator.

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