-
公开(公告)号：DE19715832A1
公开(公告)日：1998-10-22
申请号：DE19715832
申请日：1997-04-16
Applicant: BASF AG
Inventor： LINHART FRIEDRICH DR , MELZER JAROSLAV , MEIXNER HUBERT DR
Abstract: The invention relates to a method for producing, paper, pulpboard and cardboard from paper pulp containing sticky impurities by adding surfactants and cationic polymers with a load density of at least 1.5 meq/g (measured at pH 7) and a cationic polymer molar mass Mw of at least 15,000, and by dehydrating the pulp and fixing the sticky impurities in the finished paper.
-
公开(公告)号：DE19544739A1
公开(公告)日：1997-06-05
申请号：DE19544739
申请日：1995-12-01
Applicant: BASF AG
Inventor： MOHR JUERGEN DR , MAHR NORBERT DR , FUNHOFF ANGELIKA DR , LEININGER HARTMUT DR , MALLM HEIKE , MEIXNER HUBERT DR , OPPENLAENDER KNUT DR , SCHERR GUENTER DR , WEISER JUERGEN DR
Abstract: The invention relates to a process for the preparation of hydroxyalkylated polyethyleneimines by hydroxyalkylation of polyethyleneimines in one or two procedural stages to form reaction products which contain 1 to 200 mol alkylene oxide groups per NH group in the polyethyleneimine. In the one-stage process, there are anhydrous polyethyleneimines and 1 to 20 mol %, in relation to the polyethyleneimines, of at least one anhydrous base, or aqueous solutions of said substances are dehydrated and after removing all the water are reacted at temperatures above 135-150 DEG C with at least one alkylene oxide. Alternatively, in the two-stage process, in the first stage polyethyleneimine is reacted at temperatures of from 80 to 100 DEG C with 0.7 to 0.9 mol, in relation to a mol NH group in the polymerisate, of at least one alkylene oxide in an aqueous solution, and in the second stage the reaction product obtained in the first step is reacted in the presence of 1 to 20 mol %, in relation to polyethyleneimine, of an alkaline catalyst in the absence of water at temperatures of from 120 to 150 DEG C with at least one alkylene oxide to form hydroxyalkylated polyethyleneimines which contain 1 to 200 mol of alkylene oxide groups per NH group in the polyethyleneimine. The consequent alkoxylated products are only slightly coloured.
-
公开(公告)号：DE4446059A1
公开(公告)日：1996-06-27
申请号：DE4446059
申请日：1994-12-22
Applicant: BASF AG
Inventor： MEIXNER HUBERT DR , REUTHER WOLFGANG DR , KOENIGSTEIN VOLKER DR
Abstract: The use of oxo-oils (I) as an additive for plastics is claimed. Also claimed are (i) an additive compsn. (II) for plastics, contg. (a) 5-70 pts. wt. (I), (b) 1-30 pts. wt. alkali and/or alkaline earth salts of 8-18C organic acids, (c) 0.5-5 pts. wt. antioxidants, (d) 5-30 pts. wt. plasticiser and (e) 5-50 pts. wt. organic phosphite; and (ii) plastic material contg. additives, with a content of 0.5-5 pts. wt. (I) to 100 pts. wt. plastic material.
-
公开(公告)号：DE19643133A1
公开(公告)日：1998-04-23
申请号：DE19643133
申请日：1996-10-18
Applicant: BASF AG
Inventor： MEIXNER HUBERT DR , STEUERLE ULRICH DR , DECKER JUERGEN DR , PAULUS WOLFGANG DR , BOECKH DIETER DR , LUX JUERGEN ALFRED DR , EHLE BEATE DR
Abstract: The invention concerns the use of water-soluble or water-dispersible cross-linked nitrogenated compounds obtained by crosslinking (a) compounds containing at least three NH groups with (b) at least bifunctional crosslinking agents which react with NH groups, in washing and cleaning agents, in particular as soil-release agents. Preferably, the compounds (a) are selected from the group comprising oligo- and polyamines, polyalkylene polyamines, polyamidoamines, polyamidoamines grafted with (poly)ethyleneimine and mixtures thereof.
-
公开(公告)号：DE19607641A1
公开(公告)日：1997-09-04
申请号：DE19607641
申请日：1996-02-29
Applicant: BASF AG
Inventor： DYLLICK-BRENZINGER RAINER DR , STEUERLE ULRICH DR , REUTHER WOLFGANG DR , SCHERR GUENTER DR , MEIXNER HUBERT DR
Abstract: Water-soluble condensation products (I) with a viscosity of at least 100 mPa.s in 20 wt% aqueous solution at 20 deg C, obtained by reacting (a) polyalkylene-polyamines, polyamido- amines and/or ethyleneimine-grafted polyamido-amines with (b) at least bifunctional halogen-free crosslinkers selected from (b1) ethylene carbonate, propylene carbonate and/or urea, (b2) mono- unsaturated carboxylic acids and their esters, amides and anhydrides, or at least dibasic saturated mono- or poly- carboxylic acids and derivatives as above, (b3) reaction products of polyether-diamines, alkylenediamines, polyalkylene-polyamines, alkylene glycols and/or polyalkylene glycols with mono- unsaturated carboxylic acids or derivatives thereof as above, in which the product contains at least two ethylenic double bonds or carboxylic acid, amide or ester functional groups and/or (b4) reaction products of dicarboxylic acid esters with ethyleneimine containing at least two aziridino groups. Also claimed is t he above process for the production of (I).
-
Patent Agency Ranking
公开(公告)号：DE19600366A1
公开(公告)日：1997-07-10
申请号：DE19600366
申请日：1996-01-08
Applicant: BASF AG
Inventor： STEUERLE ULRICH DR , MEIXNER HUBERT DR , DYLLICK-BRENZINGER RAINER DR , REUTHER WOLFGANG DR , KANTER HARTMUT DR , HETTCHE ALBERT DR , WEISER JUERGEN DR , SCHERR GUENTER DR
IPC: B01D21/01 , B01D61/14 , C08G73/00 , C08G73/02 , C08G73/04 , D21H17/54 , D21H17/56 , D21H21/10 , D21H21/16 , A61K7/075 , A61K7/48 , C08G69/48
Abstract: Molecular weight distribution of an ethyleneimine polymer is narrowed by subjecting a solution of the polymer to ultrafiltration, removing 5-95 wt.% of the polymer as permeate, and optionally isolating the remaining polymer from the retentate.
-
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
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：DE19713755A1
公开(公告)日：1998-10-08
申请号：DE19713755
申请日：1997-04-04
Applicant: BASF AG
Inventor： DYLLICK-BRENZINGER RAINER DR , LORENCAK PRIMOZ DR , MEIXNER HUBERT DR , BAUMANN PETER , KRUEGER ELLEN , STANGE ANDREAS DR , RUEBENACKER MARTIN DR
IPC: D21H17/20 , D21H17/29 , D21H17/45 , D21H17/55 , D21H17/56 , D21H21/10 , D21H21/18 , D21H23/76 , D21H17/34 , C08B31/00
Abstract: The invention relates to a method for producing high dry-strength paper, pulpboard and cardboard by adding cationic, anionic and/or amphoteric starch as a dry-strength agent to the paper material, dehydrating the paper material to form sheets in the presence of cationic polymers as starch retention agents, and using cationic polymer retention agents to increase retention of dry-strength agents made from cationic, anionic and/or amphoteric starch during the production of paper, pulpboard and cardboard.
-
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：DE19627553A1
公开(公告)日：1998-01-15
申请号：DE19627553
申请日：1996-07-09
Applicant: BASF AG
Inventor： DYLLICK-BRENZINGER RAINER DR , MEIXNER HUBERT DR , LINHART FRIEDRICH DR , MOENCH DIETMAR DR , GERBER KLAUS-DIETER , DIRKS BERND , BAUMANN PETER
IPC: D21H17/45 , D21H17/29 , D21H17/37 , D21H17/56 , D21H17/68 , D21H23/14 , D21C9/18 , D21F1/82 , D21H17/44
Abstract: The invention relates to a process for producing paper and cardboard by dehydration of pulps, forming sheets and drying said sheets. Polyethylene imines of a molar mass Mw of greater than 500 000 or polymers containing vinyl amine units and having a molar mass of 5000 to 3 million are added to the pulps and subsequently, polymers containing cationic polyacrylic amides or vinyl amine units are added to said pulps, the molar masses Mw of the polymers being at least 4 million in each case. The pulp is then subjected to at least one shearing stage and flocculates by addition of bentonite, colloidal silicic acid or clay.
-
-
-
-
-
-
-
-
-
Search Results
19
records
(took 0.022 seconds)
