公开(公告)号：DE19748546A1

公开(公告)日：1999-05-06

申请号：DE19748546

申请日：1997-11-03

Applicant: BASF AG

Inventor： KROENER HUBERTUS DR ,  BAUER GERHARD DR ,  HARTMANN JUERGEN DR ,  TSCHANG CHUNG-JI DR ,  ANGEL MAXIMILIAN DR

IPC: C08F2/22 ,  C08F2/24 ,  C08F2/38 ,  C08F257/02 ,  C08F291/00 ,  C08F212/00 ,  C08F218/04 ,  C08F220/18 ,  C08F236/04

Abstract: Preparation of a low viscosity aqueous dispersion involves using a seed polymer(s) and a component comprising a water-soluble salt which does not act as an initiator or surface active material. Preparation of a low viscosity aqueous dispersion comprises radically emulsion polymerizing monomers in the presence of a polymerization initiator(s), a surface active material(s) and a seed polymer(s). Part of the seed polymer(s) and part of a component comprising a water-soluble salt which does not act as an initiator or surface active material are charged to the reaction. An Independent claim is included for the obtained dispersion.

公开(公告)号：DE19735807A1

公开(公告)日：1999-02-25

申请号：DE19735807

申请日：1997-08-18

Applicant: BASF AG

Inventor： HUEBINGER WOLFGANG DR ,  WUNDER RAINER DR ,  BAUER GERHARD DR ,  DOBBELAAR JOHANNES DR ,  LAWRENZ SVEN ,  MUESELER FRANZ-JOSEF DR ,  NAHSTOLL JUERGEN DR ,  RUPANER ROBERT DR ,  SCHMIDT CHRISTIAN-ULRICH DR

IPC: B01D17/00 ,  B01J19/00 ,  B01J19/18 ,  B01J19/24 ,  C08F6/00 ,  C08J3/03 ,  C08J3/00 ,  B01D19/00 ,  B01F15/06

Abstract: A method for cooling dispersions or liquids (D/L) after a deodorising process comprising (a) passing steam through the D/L in a boiler (1), causing it to foam, (b) taking the foam from the top of the boiler into an evacuated separator (4) through a jet (5) and thus breaking the foam, (c) condensing the water vapour from the foam in a heat exchanger (8) and removing organic volatiles, and (d) returning the broken foam to (1). This process is continued until the D/L is deodorised to the required extent, then the hot D/L is cooled by transferring it from the bottom of (1) to the evacuated separator (4) via jet (5), the water vapour produced is condensed in (8) as before, and the cooled D/L is taken off at the bottom of (4).

公开(公告)号：DE19711022A1

公开(公告)日：1998-09-24

申请号：DE19711022

申请日：1997-03-17

Applicant: BASF AG

Inventor： RUPANER ROBERT DR ,  LAWRENZ SVEN ,  BAUER GERHARD DR ,  DOBBELAAR JOHANNES DR ,  NAHSTOLL JUERGEN DR ,  MUESELER FRANZ-JOSEF DR ,  FERBER AXEL ,  HARTMANN JUERGEN DR ,  KELLER PETER DR ,  MEISTER MARTIN DR ,  NEUTZNER JOSEF DR ,  REHMER GERD DR

IPC: B01F7/00 ,  B01J19/18 ,  B01J19/20 ,  C08F2/00 ,  C08F2/01 ,  C08F2/16 ,  C08F2/18 ,  C08F6/00 ,  B01F7/16 ,  B01F7/18 ,  B01F7/22 ,  B01F7/24 ,  B01F7/30

Abstract: The use of one- or multi-stage stirrer(s), which produce axial as well as tangential flow components, in a reactor for polymer production by heterophase polymerisation is claimed.

公开(公告)号：DE19711019A1

公开(公告)日：1998-09-24

申请号：DE19711019

申请日：1997-03-17

Applicant: BASF AG

Inventor： RUPANER ROBERT DR ,  LAWRENZ SVEN ,  SCHUCHMANN HEIKE DR ,  BAUER GERHARD DR

IPC: B01F7/00 ,  B01F15/00 ,  B01J19/00 ,  B01J19/18 ,  C08F2/00 ,  B01F7/16 ,  B01F7/18 ,  B01F7/22

Abstract: Stirrer for reactors for chemical reactions has several variably adjustable stirring parts (5a-d) on a drive shaft (2). The novel features are that each stirring part is connected to the drive shaft by an arm (4a-d) and can be adjusted by regulators (6) in the drive shaft.

公开(公告)号：DE19648744A1

公开(公告)日：1998-05-28

申请号：DE19648744

申请日：1996-11-25

Applicant: BASF AG

Inventor： KELLER ANDREAS ,  LAWRENZ SVEN ,  BAUER GERHARD DR ,  SCHMIDT-THUEMMES JUERGEN DR ,  BAECHER REINHARD DR ,  HARTMANN JUERGEN DR ,  TSCHANG CHUNG-JI DR

IPC: C08F2/01 ,  C08F2/00 ,  C08F2/08 ,  C08F2/22

Abstract: The present invention relates to a method for producing a polymer dispersion by radical polymerization of an aqueous monomer emulsion, characterized in that the monomer emulsion is produced continuously in accordance with consumption.

公开(公告)号：ES2098846T3

公开(公告)日：1997-05-01

申请号：ES94116057

申请日：1994-10-12

Applicant: BASF AG

Inventor： BAUER GERHARD DR ,  BOTT KASPAR DR

IPC: C07C239/20 ,  C07C271/10 ,  C07C271/16 ,  C07C271/18 ,  C07C271/64 ,  C08F20/36 ,  C08F220/10 ,  C08F246/00

公开(公告)号：DE59305442D1

公开(公告)日：1997-03-27

申请号：DE59305442

申请日：1993-10-14

Applicant: BASF AG

Inventor： HAEBERLE KARL DR ,  BAUER GERHARD DR ,  MAEMPEL LOTHAR DR

IPC: C08F20/44 ,  C08F12/00 ,  C08F14/00 ,  C08F20/42 ,  C08F212/04 ,  C08F214/00 ,  C08F220/36 ,  C08F246/00 ,  C08G18/00 ,  C08G18/81 ,  C09D4/02 ,  C09D133/06 ,  C09D157/04 ,  C09J133/06 ,  C09J157/04

Abstract: The invention relates to copolymers built up from a) from 0.01 to 40% by weight of a copolymerised, ethylenically unsaturated compound containing at least one oxime-blocked isocyanate group, b) from 30 to 99.99% by weight of at least one C1 to C20-alkyl (meth)acrylate, vinyl ester of carboxylic acids containing 1 to 20 carbon atoms, vinylaromatic compounds up to 20 carbon atoms, ethylenically unsaturated nitrile having 3 to 6 carbon atoms, vinyl halide or nonaromatic hydrocarbon having 4 to 8 carbon atoms and at least 2 conjugated double bonds, c) from 0 to 30% by weight of at least one comonomer containing at least one ketone or aldehyde group, and d) from 0 to 50% by weight of at least one further monomer.

公开(公告)号：DE19624299A1

公开(公告)日：1997-01-02

申请号：DE19624299

申请日：1996-06-18

Applicant: BASF AG

Inventor： AGAR DAVID DR ,  HUEBINGER WOLFGANG DR ,  LAWRENZ SVEN ,  BAUER GERHARD DR ,  MEISTER MARTIN DR

IPC: A61L9/16 ,  B01D19/00 ,  B29B7/84 ,  C07B63/00 ,  A61L2/02

Abstract: In a process and assembly to remove malodorous organic cpds. esp. aq. polymer dispersions, from a dispersion, the (a) the dispersion (1) and a gas (6) are introduced into a vessel (3) which rotates about an axis (5), such that the gas flows against the dispersion in the rotating vessel; (b) and all the corners and edges inside the vessel (3) and within the fluid flow zones are rounded off. A further variant has a rotating inner vessel (3) with permeable walls sepd. by a gap (12) from an outer vessel (4). The gas (6) is introduced to the gap and migrates through the permeable walls (20) into the inner vessel chamber, while the dispersion flows against the direction of gas flow, into the gap (12).

公开(公告)号：DE59400080D1

公开(公告)日：1996-02-22

申请号：DE59400080

申请日：1994-03-15

Applicant: BASF AG

Inventor： BOTT KASPAR DR ,  BAUER GERHARD DR ,  HAEBERLE KARL DR

IPC: C07C271/18 ,  C07C271/64 ,  C08F20/60 ,  C09D133/24 ,  C09J133/24

Abstract: Copolymerisable oxime ethers of the general formula in which A is a divalent connecting link, R and R independently of one another are a C1- to C10-alkyl radical, a C1- to C10-alkoxy radical, a C5- to C10-cycloalkyl radical or a C5- to C10-aryl radical, which can also contain 1 - 3 non-adjacent nitrogen, oxygen or sulphur atoms as hetero atoms in the carbon chain or the carbon ring and can be substituted by one to three C1- to C4-alkyl or alkoxy groups, R or R can be a hydrogen atom or R and R together form a bridge of 3 to 14 carbon atoms, some of the carbon atoms also being able to be part of an aromatic ring, Z is an n-valent organic radical which contains a copolymerisable ethylenically unsaturated group, and n is an integer from 1 to 3.

公开(公告)号：DE4213964A1

公开(公告)日：1993-11-04

申请号：DE4213964

申请日：1992-04-29

Applicant: BASF AG

Inventor： BAUER GERHARD DR ,  AYDIN ORAL DR ,  NEUTZNER JOSEF DR

IPC: C08F2/24 ,  C08F265/00 ,  C08F265/06 ,  C08F291/00 ,  C08F220/10 ,  C08F220/42 ,  C08F218/02 ,  C08F214/00 ,  C08F212/00 ,  C08F210/00 ,  C08F222/10 ,  C09D151/00 ,  C09J151/00 ,  B32B27/28

Abstract: Aqueous polymer dispersions which are obtainable by polymerising free-radical-polymerisable monomers by the process of free-radical aqueous emulsion polymerisation with addition of an aqueous dispersion of a starting polymer.