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    12.
    发明专利
    未知

    公开(公告)号：CH608533A5

    公开(公告)日：1979-01-15

    申请号：CH1504074

    申请日：1974-11-11

    Applicant: BASF AG

    Inventor： SCHARF EMIL DR ,  NAARMANN HERBERT DR ,  REICHEL FRITZ DR

    IPC: C09J123/02 ,  D21H17/07 ,  D21H17/35 ,  D21H17/43 ,  D21H3/38

    Abstract: Process for the manufacture of surface-sized papers by impregnating a paper with a solution containing a water-soluble salt of a random polymer based on alpha -olefins and ethylenically unsaturated acids and a compound of the formula: R1 R-CO-N ANGLE R2 wherein R is alkyl, aryl or a radical of the formula: R1 ANGLE N- R2 and R1 and R2 each independently denotes H, R or a radical of the formula:

    Paper sizing - with water sol copolyolefin salts to give alkali resistant finish
    13.
    发明专利
    Paper sizing - with water sol copolyolefin salts to give alkali resistant finish 未知

    公开(公告)号：DE2207114A1

    公开(公告)日：1973-08-23

    申请号：DE2207114

    申请日：1972-02-16

    Applicant: BASF AG

    Inventor： NAARMANN HERBERT DR ,  HELLWIG KARL-RUEDIGER ,  REICHEL FRITZ DR

    IPC: D21H17/43 ,  D21H1/48

    Abstract: The salts are prepd. by photocopolymsn. of (a) 50 - 90 wt.% 2 - 12C alpha-olefins (b) 20 - 40 wt.% acrylic and/or methacrylic acid and (c) 10 - 20 wt.% 1 - 4C esters, amides or nitriles of acrylic and/or methacrylic acid, 1 - 4C vinyl esters, vinyl halides, maleic anhydride, maleic and/or fumaric acid half esters, and/or half amide and/or 3 - 6C unsatd. alcohols followed by neutralisation with (in)organic bases. Papers of high filler content can be sized and the copolymers are easily worked having K-values of 15 - 30.

    15.
    发明专利
    未知

    公开(公告)号：ES2018508T5

    公开(公告)日：1995-08-01

    申请号：ES87111490

    申请日：1987-08-08

    Applicant: BASF AG

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

    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

    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.

    16.
    发明专利
    未知

    公开(公告)号：DE3864152D1

    公开(公告)日：1991-09-19

    申请号：DE3864152

    申请日：1988-01-22

    Applicant: BASF AG

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

    IPC: C08F2/22 ,  C08F2/44 ,  C08F4/28 ,  C08F20/52 ,  C08F220/10 ,  C08F220/12 ,  C08F220/18 ,  C08F220/42 ,  C08F220/56 ,  C08F251/00 ,  D21H17/28 ,  D21H17/37 ,  D21H19/20 ,  D21H19/24 ,  D21H21/16

    Abstract: Paper size is based on finely-divided aq. dispersions of copolymers (I) obtd. by emulsion copolymerisation of ethylenically unsatd. monomers in the presence of starch. 40-140 (wt.) pts. monomer mixt. of 20-65% (a) (meth)acrylonitrile, (b) 80-35% 3-8C alkyl acrylate and (c) 0-10% other ethylenically unsatd. comonomers are copolymerised in 100 pts. aq. soln. of 2.7-15% degraded starch, with an intrinsic viscosity of 0.04 to under 0.12 dl/g. at 40-100 deg.C in the presence of a peroxide initiator. The monomer mixt. pref. contains (a) acrylonitrile, (b) butyl acrylate(s) and opt. (c) di-1-3C-alkylamino-2-6C-alkyl (meth)acrylate, N-vinylimidazoline and/or N-vinyl-2 methylimidazoline or their quaternisation prods., or styrene, (meth)acrylamide, methacrylate esters and acrylate esters other than those used as (b). The starch is modified by enzymatic and then oxidative degradation to a viscosity of 0.045-0.11 dl/g.

    Paper size
    18.
    发明专利
    Paper size 未知

    公开(公告)号：DE3235529A1

    公开(公告)日：1984-03-29

    申请号：DE3235529

    申请日：1982-09-25

    Applicant: BASF AG

    Inventor： HOEHR LOTHAR DR ,  MUELLER RICHARD DR ,  REICHEL FRITZ DR

    IPC: D21H17/17 ,  D21H3/08 ,  D21H3/38

    Abstract: Use of mixtures of (A) emulsions of C14- to C20-dialkylketenes and (B) fine-particulate polymer dispersions which contain copolymerised nitrogen-containing monomers and which are prepared by a two-stage polymerisation, in which, in the first polymerisation stage of the type of a solution copolymerisation, a low-molecular amphoteric prepolymer is prepared and, after dilution with water, nonionic, ethylenically unsaturated monomers are polymerised in this polymer solution in the second polymerisation stage in the manner of an emulsion polymerisation, 0.1 to 20 parts by weight of (B) being used per 1 part by weight of (A) - each relative to the solids content - as a paper size.

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