公开(公告)号：DE19753297A1

公开(公告)日：1999-06-02

申请号：DE19753297

申请日：1997-12-01

Applicant: BASF AG

Inventor： KOTHRADE STEPHAN DR ,  NEGELE ANTON DR ,  SANNER AXEL DR

IPC: A23K20/10 ,  A23K40/10 ,  A23K40/20 ,  A23L27/00 ,  A23L33/10 ,  A61K9/16 ,  A61K9/20 ,  A23K1/16 ,  A23L1/29 ,  A61K31/275

Abstract: The invention relates to a method for producing solid dosing forms by mixing at least one polymeric binding agent, at least one optional active substance, and optional common additives while producing a plastic mixture. Homopolymers and/or copolymers of N-vinyl amides and/or N-vinyl amines with at least 5 wt. % units of formulae (I) and/or (II) in which R and R have meanings given in the description are utilized as polymeric binding agents.

公开(公告)号：MY137358A

公开(公告)日：2009-01-30

申请号：MYPI20034626

申请日：2003-12-03

Applicant: BASF AG

Inventor： BASLER PETER DR ,  SIEGEL WOLFGANG DR ,  ACHHAMMER GUNTHER DR ,  NEGELE ANTON DR ,  MENIG HELMUTH DR ,  RUPPEL WILHELM DR ,  ZEHNER PETER DR ,  LUYKEN HERMANN ,  VOGT VOLKER DR

IPC: B01J12/00 ,  B01J15/00 ,  B01J19/02 ,  B01J19/24 ,  B01J23/86 ,  C01C3/02

Abstract: THE PRESENT INVENTION RELATES TO A PROCESS FOR PREPARING HYDROCYANIC ACID (HCN) BY CATALYTIC DEHYDRATION OF GASEOUS FORMAMIDE IN A REACTOR WHICH HAS AN INTERNAL REACTOR SURFACE MADE OF A STEEL COMPRISING IRON AND CHRONIUM AND NICKEL, AND ALSO TO A REACTOR FOR PREPARING HYDROCYANIC ACID BY CATALYTIC DEHYDRATION OF GASEOUS FORMAMIDE, WHICH REACTOR HAS AN INTERNAL REACTOR SURFACE MADE OF A STEEL COMPRISING IRON AND CHRONIUM AND NICKEL, AND ALSO TO THE USE OF THE REACTOR OF THE PRESENT INVENTION IN A PROCESS FOR PREPARING HYDROCYANIC ACID BY CATALYTIC DEHYDRATION OF GASEOUS FORMAMIDE.

公开(公告)号：DE19716821A1

公开(公告)日：1998-10-29

申请号：DE19716821

申请日：1997-04-22

Applicant: BASF AG

Inventor： RUEBENACKER MARTIN DR ,  NEGELE ANTON DR ,  MAHR NORBERT DR ,  ESSER ANTON DR ,  DYLLICK-BRENZINGER RAINER DR ,  MEIXNER HUBERT DR ,  BAUMANN PETER

IPC: D21H21/02 ,  C08F26/02 ,  D21H17/34

Abstract: In a process for producing paper, paperboard and cardboard, an impurity-containing paper pulp is dewatered in the presence of fixing agents made of homopolymers and/or copolymers of N-vinylformamide with a degree of hydrolysis of the polymerised N-vinylformamide units from 25 to 55 %, and retention agents.

公开(公告)号：DE19651243A1

公开(公告)日：1998-06-18

申请号：DE19651243

申请日：1996-12-10

Applicant: BASF AG

Inventor： NEGELE ANTON DR ,  RUEBENACKER MARTIN DR ,  UTECHT JENS DR ,  MEIXNER HUBERT DR

IPC: A61K8/72 ,  A61K8/91 ,  A61Q5/00 ,  A61Q5/12 ,  A61Q11/00 ,  A61Q19/10 ,  C04B24/26 ,  C05G3/00 ,  C05G3/10 ,  C08F8/12 ,  C08F271/00 ,  C08F271/02 ,  C08J3/03 ,  C09B62/00 ,  C09B67/00 ,  C09D151/00 ,  C09G1/00 ,  C09K17/20 ,  C09K23/00 ,  C09K23/22 ,  C09K23/52 ,  C11D1/88 ,  C11D3/37 ,  D21H17/34 ,  D21H21/02 ,  D21H21/28 ,  A61K7/48 ,  A61K7/075 ,  A61K7/16 ,  B01F17/52 ,  A61K7/06

Abstract: The invention concerns amphiphilic graft polymers in which the graft base is a polymer containing at least 5 wt % of units of formula (I) and optionally units of formula (II), R , R being H or C1-C6 alkyl, wherein (a) styrene, C1-C2 alkylstyrene and/or vinyltoluene and optionally (b) other monoethylenically unsaturated monomers which can be copolymerized therewith are grafted onto the graft base in a weight ratio of between 1: 99 and 99: 1, and wherein the group (c) is optionally partially or completely cleaved off the graft polymers, forming amino groups. The invention also concerns processes for preparing and using the amphiphilic graft polymers as consolidating agents for paper, as fixing agents for disruptive water-soluble and water-insoluble agents in paper manufacture, as dispersants for inorganic and organic pigments, dyes, concrete and plant-protecting agents, as detergent additives, as coating material for fertilisers and plant-protecting agents, as floor-maintenance agents, as protective colloids for aqueous polymer dispersions, as thickeners for cosmetic formulations, as conditioners for skin-care agents and as a component of hair-cosmetic preparations and cosmetic preparations for oral hygiene.

公开(公告)号：DE19727503A1

公开(公告)日：1999-01-07

申请号：DE19727503

申请日：1997-06-27

Applicant: BASF AG

Inventor： NEGELE ANTON DR ,  LAWRENZ DIRK DR

IPC: C08F271/00 ,  D21H19/58 ,  C08F265/10

Abstract: The invention relates to paper coating mixtures containing, as a binding agent, a copolymer consisting of 50-99.5 %wt. principal monomers (a), selected from C1-C20 alkyl(meth)acrylates, vinylesters of carboxylic acids containing up to 20 C-atoms, vinyl aromatics with up to 20 C-atoms, ethylene-unsaturated nitriles, vinyl halogenides, vinyl ethers or alkyl ethers of alcohols containing 1-10 C-atoms, aliphatic hydrocarbons with 2-8 C atoms and 1 or 2 double bonds, or mixtures of these monomers; 0.5-20 %wt. N-vinyl carboxamides, N-vinylamines or their mixtures (b); 0-10 %wt. ethylene-unsaturated carboxylic acids, carboxylic acid anhydrides or b) different amides c); 0-30 %wt. other monomers d).

公开(公告)号：DE19710215A1

公开(公告)日：1998-09-17

申请号：DE19710215

申请日：1997-03-12

Applicant: BASF AG

Inventor： NEGELE ANTON DR ,  GAUWEILER WERNER

IPC: C08F8/12 ,  C08F26/02

Abstract: The preparation of finely divided homopolymers and copolymers of N-vinyl formamide and optionally vinyl amine unit containing polymers comprises radically polymerising N-vinyl formamide and optionally copolymers in a solution of the monomers and optionally hydrolysing to vinyl amine units. The polymerisation uses an organic solvent in which the monomers are poorly soluble but in which the polymer is soluble and takes place in a kneader or fixed bed reactor.

公开(公告)号：DE19710212A1

公开(公告)日：1998-09-17

申请号：DE19710212

申请日：1997-03-12

Applicant: BASF AG

Inventor： NEGELE ANTON DR ,  RUEBENACKER MARTIN DR

IPC: B01J8/10 ,  B01J19/00 ,  B01J19/20 ,  C08F8/12 ,  C08F26/02

Abstract: A process for the production of finely-divided polymers of N-vinylformamide (NVF) and polymers which may contain vinylamine units (I), by radical polymerisation of NVF and 0-80 wt.% comonomers (based on total monomer) in aqueous solutions or mixtures at 20-150 deg C, optionally followed by acid or basic hydrolysis of NVF units to vinylamine units. The monomers are polymerised in a reactor fitted with at least two parallel rotating stirrer shafts with stirrer organs, and the resulting water-containing gel polymer is pulverised with the rotating stirrers and then discharged from the reactor.

公开(公告)号：DE19642490A1

公开(公告)日：1998-04-16

申请号：DE19642490

申请日：1996-10-15

Applicant: BASF AG

Inventor： BREITENBACH JOERG DR ,  SCHADE CHRISTIAN DR ,  SIGWART CHRISTOPH DR ,  MUELLER ULRICH DR ,  HESSE MICHAEL DR ,  NEGELE ANTON DR ,  RUEBENACKER MARTIN DR ,  ELLER KARSTEN DR

IPC: C08F4/606 ,  C08F26/02 ,  C08F26/00 ,  A61K31/795

Abstract: Cationic polymerisation of N-vinylamides, optionally with comonomers, is initiated by a heterogeneous catalyst which is: (i) a carrier catalyst; (ii) an acid-activated layered silicate; (iii) a zeolite or silico-alumo-phosphate of zeolitic structure; (iv) a hetero-polyacid, or (v) a crosslinked polymer containing fluorosulphonic acid groups. The N-vinylamide is preferably N-vinyl pyrrolidone or a compound of formula (I) CH2=CH-N(COR )(R ) (I) R , R = H or 1-6C alkyl, especially N-vinyl formamide.