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公开(公告)号：ES2050350T3
公开(公告)日：1994-05-16
申请号：ES90125089
申请日：1990-12-21
Applicant: BASF AG
Inventor： FREUDENBERG ENRIQUE DR , LINHART FRIEDRICH DR , TRESCH RAINER , HARTMANN HEINRICH DR , DENZINGER WALTER , KROENER MICHAEL DR , SENDHOFF NORBERT DR
Abstract: In a process for making paper, paperboard and cardboard, paper pulps containing interfering materials are dehydrated in the presence of polymers which, as characteristic constituents, contain copolymerised units of the formulae … … with R and R = H or C1- to C3-alkyl, and have K values of at least 130, the polymers containing less than 10 mol% of units of formula II.
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公开(公告)号：AT104992T
公开(公告)日：1994-05-15
申请号：AT89122748
申请日：1989-12-09
Applicant: BASF AG
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公开(公告)号：DE4233040A1
公开(公告)日：1994-04-07
申请号：DE4233040
申请日：1992-10-01
Applicant: BASF AG
Inventor： NILZ CLAUDIA DR , SENDHOFF NORBERT DR , BREITSCHAFT WALTER DR , ZILLIG MANFRED , LORENCAK PRIMOZ DR
Abstract: Described is a method of dyeing paper during the paper-manufacturing process by the addition of water-soluble anionic dyes and cationic polymers containing vinylamine units as fixing agents to the pulp and removing the water from the pulp to form dyed paper.
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公开(公告)号：DE59003890D1
公开(公告)日：1994-01-27
申请号：DE59003890
申请日：1990-12-13
Applicant: BASF AG
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公开(公告)号：DE4007312A1
公开(公告)日：1991-09-12
申请号：DE4007312
申请日：1990-03-08
Applicant: BASF AG
Inventor： MOENCH DIETMAR DR , KROENER MICHAEL DR , FREUDENBERG ENRIQUE DR , HARTMANN HEINRICH DR , SENDHOFF NORBERT DR
Abstract: N-vinylformamide is polymerized with or without other water-soluble monoethylenically unsaturated monomers and with or without water-insoluble monoethylenically unsaturated monomers in not less than 30% strength by weight aqueous monomer solutions in the presence of a polymerization initiator at not more than 150 degrees C. in a kneader by a method in which the polymerization is carried out to such an extent that the initially formed water-containing polymer gel disintegrates into fine particles and the finely divided polymer obtainable in this manner is hydrolyzed, preferably in the kneader, so that not less than 0.1 mol % of the N-vinylformamide units present in the polymer are converted into vinylamine units. The polymers obtainable in this manner dissolve readily in water. The aqueous solutions are used, for example, in papermaking and tertiary oil production.
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Patent Agency Ranking
公开(公告)号：DE19533797A1
公开(公告)日：1997-03-20
申请号：DE19533797
申请日：1995-09-13
Applicant: BASF AG
Inventor： BECKMANN EBERHARD DR , SENDHOFF NORBERT DR , STOEHR KLAUS , HAWLIK HUBERT , VALLE JEAN CLAUDE
IPC: C08G63/181 , C08G63/672 , C08G63/688 , D06M15/507
Abstract: Water-dispersible polyester (I) contg. sulpho gps. is obtd. by condensing mixts. of (a) aromatic dicarboxylic acids or esters and (b) aromatic dicarboxylic acids contg. sulpho gps. with (c) diol(s) selected from ethylene glycol and polyethylene glycol with 2-20 ethylene glycol units and (d) diol(s) with sec. OH gp(s)., which is substd. by 1-6 C alkyl, phenyl or 1-3 C alkylphenyl in the 1-position to this OH gp. and has a b.pt. of >= 260 deg C. Pref. diol (c) is tetra-, penta-, hexa-, hepta- or esp. mono-, di- and/or tri-ethylene glycol. Suitable diols (d) are polypropylene and polybutylene glycols with 3-20 propylene glycol or butylene glycol-1,2 and/or -2,3 units, (poly)neopentyl and (poly)phenylglycols with 1-20 neopentyl or phenyl glycol units, end-blocked triols, 1,1-isopropylidene-bis(p-phenyloxy)-dipropanol-2 (II) and neopentyl glycol hydroxypivalate, esp. tripropylene glycol, tributylene glycol-1,2 or -2,3 and/or (II).
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公开(公告)号：DE4435687A1
公开(公告)日：1996-04-11
申请号：DE4435687
申请日：1994-10-06
Applicant: BASF AG
Inventor： FISCH HERBERT DR , SENDHOFF NORBERT DR , BREITENBACH JOERG DR , LEITNER HEINZ
Abstract: The use of aqueous dispersions or water-dispersible polyamides obtainable by the condensation of (a) 40 to 94.8 mol % of a monoaminocarboxylic acid with 2 to 12 C atoms or its lactam, (b) 2.6 to 37 mol % of a diamine with 2 to 18 C atoms, (c) 2.6 to 7 mol % of a dicarboxylic acid substituted with sulphonate groups and (d) 0 to 30 mol % of a dicarboxylic acid with 2 to 16 C atoms differing from (c), and dispersing the condensates in an aqueous medium, as sizes for warp yarns.
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18.发明专利
公开(公告)号：AT103023T
公开(公告)日：1994-04-15
申请号：AT90125089
申请日：1990-12-21
Applicant: BASF AG
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公开(公告)号：DK0438755T3
公开(公告)日：1994-04-05
申请号：DK90125089
申请日：1990-12-21
Applicant: BASF AG
Inventor： DENZINGER WALTER , KROENER MICHAEL DR , HARTMANN HEINRICH DR , LINHART FRIEDRICH DR , FREUDENBERG ENRIQUE DR , TRESCH RAINER , SENDHOFF NORBERT DR
Abstract: In a process for making paper, paperboard and cardboard, paper pulps containing interfering materials are dehydrated in the presence of polymers which, as characteristic constituents, contain copolymerised units of the formulae … … with R and R = H or C1- to C3-alkyl, and have K values of at least 130, the polymers containing less than 10 mol% of units of formula II.
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公开(公告)号：DE4032660A1
公开(公告)日：1992-04-16
申请号：DE4032660
申请日：1990-10-15
Applicant: BASF AG
Inventor： KROENER MICHAEL DR , NILZ CLAUDIA DR , SENDHOFF NORBERT DR , STANGE ANDREAS DR , CLERCQ ARNOLD DE DR , RIEBELING ULRICH
Abstract: According to a paper, paperboard and cardboard internal sizing process, resin size is used, as well as cationic polymers containing polymerized vinylamine units as fixing agents for the resin size.
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