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公开(公告)号：CA2221515C
公开(公告)日：2007-07-03
申请号：CA2221515
申请日：1996-07-09
Applicant: BASF AG
Inventor： LORENCAK PRIMOZ , MONCH DIETMAR , SCHUHMACHER RUDOLF , STANGE ANDREAS , NILZ CLAUDIA , DENZINGER WALTER , RUBENACKER MARTIN
IPC: C08B37/00 , C08F263/02 , C08F8/12 , C08F261/04 , C08F283/06 , C08F291/00 , C08F291/06 , C09D7/45 , D21H17/34 , D21H17/36 , D21H17/37 , D21H21/10 , D21H21/14 , D21H21/16 , D21H21/18
Abstract: Graft polymers are obtainable by free radical polymerization of (A) monomers or monomer mixtures comprising (a) from 1 to 100% by weight of N-vinylcarboxamides of the formula (see formula I) where R1 and R2 are each H or C1-C6-alkyl, (b) from 0 to 99% by weight of other monoethylenically unsaturated monomers copolymerizable with the monomers (a) and (c) from 0 to 5% by weight of monomers having at least two ethylenically unsaturated, nonconjugated double bonds in the molecule, in the presence of (B) polymers which contain units of vinyl esters of saturated C1-C4-carboxylic acids and/or vinyl alcohol units, or of mixtures which contain these polymers and polymers having at least 3 alkylene oxide units or polytetrahydrofuran, in a weight ratio (A):(B) of from 95:5 to 10:90 and, if required, subsequent elimination of the group
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公开(公告)号：CA2145286C
公开(公告)日：2005-03-29
申请号：CA2145286
申请日：1993-11-25
Applicant: BASF AG
Inventor： NILZ CLAUDIA , DENZINGER WALTER , HARTMANN HEINRICH , KROENER MICHAEL , LINHART FRIEDRICH , SCHUHMACHER RUDOLF , MOENCH DIETMAR , STANGE ANDREAS
IPC: C08F220/04 , C08F8/12 , C08F26/00 , C08F226/02 , D21H17/34 , D21H17/37 , D21H17/43 , D21H17/45 , D21H21/10 , D21H21/18
Abstract: Use of copolymers which are obtainable by copolymerization of a) from 5 to 99 mol% of N-vinylcarboxamides, b) from 95 to 1 mol% of monoethylenically unsaturated carboxylic acids and/or the alkali metal, alkaline earth metal, ammonium or amine salts thereof and, if required, c) up to 30 mol% of other monoethylenically unsaturated com- pounds and, if required, d) up to 2 mol% of crosslinking agents and subsequent partial or complete elimination of the formyl groups from the N-vinylcarboxamides polymerized in the copolymer, with formation of amino or ammonium groups, are used as additives to paper stock for increasing the drainage rate and the retention in papermaking and the dry and wet strength of the paper.
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公开(公告)号：PT883712E
公开(公告)日：2001-12-28
申请号：PT97903333
申请日：1997-02-20
Applicant: BASF AG
Inventor： RUBENACKER MARTIN , NILZ CLAUDIA , MANFRED NIESSNER DR , SCHUHMACHER RUDOLF , UTECHT JENS
Abstract: PCT No. PCT/EP97/00801 Sec. 371 Date Aug. 31, 1998 Sec. 102(e) Date Aug. 31, 1998 PCT Filed Feb. 20, 1997 PCT Pub. No. WO97/31518 PCT Pub. Date Sep. 4, 1997Partially hydrolyzed polymers of N-vinylcarboxamides obtainable by sole polymerization of N-vinylcarboxamides of the formula where R1 and R2 are each hydrogen or C1- to C6-alkyl, and elimination from the polymers of from 0.5 to 95 mol % of the groups of the formula where R1 is hydrogen or C1- to C6-alkyl, can be used as paper, paperboard and cardboard dry strength enhancers.
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公开(公告)号：ES2160404T3
公开(公告)日：2001-11-01
申请号：ES98908109
申请日：1998-02-23
Applicant: BASF AG
Inventor： ETTL ROLAND , SCHUHMACHER RUDOLF , BONN JOHANN , REUTHER WOLFGANG , UTECHT JENS , JULIUS MANFRED
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公开(公告)号：DE59800931D1
公开(公告)日：2001-08-02
申请号：DE59800931
申请日：1998-02-23
Applicant: BASF AG
Inventor： ETTL ROLAND , SCHUHMACHER RUDOLF , BONN JOHANN , REUTHER WOLFGANG , UTECHT JENS , JULIUS MANFRED
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Patent Agency Ranking
公开(公告)号：AT202812T
公开(公告)日：2001-07-15
申请号：AT97903333
申请日：1997-02-20
Applicant: BASF AG
Inventor： NIESSNER MANFRED , NILZ CLAUDIA , UTECHT JENS , RUEBENACKER MARTIN , SCHUHMACHER RUDOLF
Abstract: PCT No. PCT/EP97/00801 Sec. 371 Date Aug. 31, 1998 Sec. 102(e) Date Aug. 31, 1998 PCT Filed Feb. 20, 1997 PCT Pub. No. WO97/31518 PCT Pub. Date Sep. 4, 1997Partially hydrolyzed polymers of N-vinylcarboxamides obtainable by sole polymerization of N-vinylcarboxamides of the formula where R1 and R2 are each hydrogen or C1- to C6-alkyl, and elimination from the polymers of from 0.5 to 95 mol % of the groups of the formula where R1 is hydrogen or C1- to C6-alkyl, can be used as paper, paperboard and cardboard dry strength enhancers.
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公开(公告)号：AT202581T
公开(公告)日：2001-07-15
申请号：AT98908109
申请日：1998-02-23
Applicant: BASF AG
Inventor： ETTL ROLAND , SCHUHMACHER RUDOLF , BONN JOHANN , REUTHER WOLFGANG , UTECHT JENS , JULIUS MANFRED
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公开(公告)号：ES2153587T3
公开(公告)日：2001-03-01
申请号：ES96925686
申请日：1996-07-09
Applicant: BASF AG
Inventor： DENZINGER WALTER , RUBENACKER MARTIN , NILZ CLAUDIA , LORENCAK PRIMOZ , MONCH DIETMAR , SCHUHMACHER RUDOLF
IPC: C08B37/00 , C08F8/12 , C08F261/04 , C08F263/02 , C08F283/06 , C08F291/00 , C09D7/45 , D21H17/34 , D21H17/37 , D21H21/10 , D21H21/14 , D21H21/16 , D21H21/18
Abstract: PCT No. PCT/EP96/02991 Sec. 371 Date Jan. 21, 1998 Sec. 102(e) Date Jan. 21, 1998 PCT Filed Jul. 9, 1996 PCT Pub. No. WO97/04014 PCT Pub. Date Feb. 6, 1997Graft polymers are obtainable by free radical polymerization of (A) monomers or monomer mixtures comprising (a) from 1 to 100% by weight of N-vinylcarboxamides of the formula where R1 and R2 are each H or C1-C6-alkyl, (b) from 0 to 99% by weight of other monoethylenically unsaturated monomers copolymerizable with the monomers (a) and (c) from 0 to 5% by weight of monomers having at least two ethylenically unsaturated, nonconjugated double bonds in the molecule, in the presence of (B) polymers which contain units of vinyl esters of saturated C1-C4-carboxylic acids and/or vinyl alcohol units, or of mixtures which contain these polymers and polymers having at least 3 alkylene oxide units or polytetrahydrofuran, in a weight ratio (A):(B) of from 95:5 to 10:90 and, if required, subsequent elimination of the group from the polymerized monomers (I) of the graft polymer with formation of units of the formula and the graft polymers described above are used in the production of paper, board and cardboard as dry and wet strength agents, as retention and drainage aids and as promoters in diketene sizing and as starch cationization agents, as dispersants for pigments and as creping assistants in the production of tissue papers.
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公开(公告)号：AT198605T
公开(公告)日：2001-01-15
申请号：AT96925686
申请日：1996-07-09
Applicant: BASF AG
Inventor： DENZINGER WALTER , RUEBENACKER MARTIN , NILZ CLAUDIA , LORENCAK PRIMOZ , MOENCH DIETMAR , SCHUHMACHER RUDOLF , STANGE ANDREAS
IPC: C08B37/00 , C08F8/12 , C08F261/04 , C08F263/02 , C08F283/06 , C08F291/00 , C09D7/45 , D21H17/34 , D21H17/37 , D21H21/10 , D21H21/14 , D21H21/16 , D21H21/18
Abstract: PCT No. PCT/EP96/02991 Sec. 371 Date Jan. 21, 1998 Sec. 102(e) Date Jan. 21, 1998 PCT Filed Jul. 9, 1996 PCT Pub. No. WO97/04014 PCT Pub. Date Feb. 6, 1997Graft polymers are obtainable by free radical polymerization of (A) monomers or monomer mixtures comprising (a) from 1 to 100% by weight of N-vinylcarboxamides of the formula where R1 and R2 are each H or C1-C6-alkyl, (b) from 0 to 99% by weight of other monoethylenically unsaturated monomers copolymerizable with the monomers (a) and (c) from 0 to 5% by weight of monomers having at least two ethylenically unsaturated, nonconjugated double bonds in the molecule, in the presence of (B) polymers which contain units of vinyl esters of saturated C1-C4-carboxylic acids and/or vinyl alcohol units, or of mixtures which contain these polymers and polymers having at least 3 alkylene oxide units or polytetrahydrofuran, in a weight ratio (A):(B) of from 95:5 to 10:90 and, if required, subsequent elimination of the group from the polymerized monomers (I) of the graft polymer with formation of units of the formula and the graft polymers described above are used in the production of paper, board and cardboard as dry and wet strength agents, as retention and drainage aids and as promoters in diketene sizing and as starch cationization agents, as dispersants for pigments and as creping assistants in the production of tissue papers.
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公开(公告)号：AU690752B2
公开(公告)日：1998-04-30
申请号：AU3746495
申请日：1995-10-17
Applicant: BASF AG
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