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公开(公告)号:DE19741184A1
公开(公告)日:1999-03-25
申请号:DE19741184
申请日:1997-09-18
Applicant: BASF AG
Inventor: RUPANER ROBERT DR , LAWRENZ SVEN , DOBBELAAR JOHANNES DR , BAUER GERHARD DR , MUESELER FRANZ-JOSEF DR , KIRCHNER WERNER DR , MORRISON BRADLEY RONALD DR , NAHSTOLL JUERGEN DR , MEISTER MARTIN DR , BAECHER REINHARD DR , HUEBINGER WOLFGANG DR , SCHUMACHER GERHARD DR
IPC: C08F6/00
Abstract: Post-polymerisation reduction of the residual monomer content of a liquid solution, mixture, melt, suspension or dispersion obtained by free radical polymerisation is effected by adding a redox initiator system at a suitable temperature, the liquid in the reactor being mixed for the least possible time and at least one of the components of the initiator being added gradually to the liquid for a dose time which is 10-250 times the mixing time of the liquid.
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公开(公告)号:DE4023240A1
公开(公告)日:1992-01-23
申请号:DE4023240
申请日:1990-07-21
Applicant: BASF AG
Inventor: TELSER THOMAS DR , MEISTER MARTIN DR , KOCH HORST DR
IPC: C08F8/14 , C08F8/44 , C08F220/04 , C08F222/02 , C08F236/04 , C08F279/00 , C08F279/02 , G03F7/027 , G03F7/033 , G03F7/038
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公开(公告)号:DE3905010A1
公开(公告)日:1990-08-23
申请号:DE3905010
申请日:1989-02-18
Applicant: BASF AG
IPC: C08F2/22 , C08F236/12 , C08F265/08 , C08F279/02 , C14C11/00
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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.
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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
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).
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公开(公告)号:DE19511130A1
公开(公告)日:1996-10-02
申请号:DE19511130
申请日:1995-03-27
Applicant: BASF AG
Inventor: RECK BERND DR , PORTUGALL MICHAEL DR , WISTUBA ECKEHARDT DR , MEISTER MARTIN DR , BECKERLE WILHELM DIPL ING
IPC: C04B26/04 , C04B26/06 , C08F212/08 , C08F220/12 , C08L25/14 , C08L33/04 , C08L33/06 , C09J125/14 , C09J133/06 , C09K23/16 , C08K5/17 , C08L25/08 , C08K5/13 , C08K5/05 , C08J5/02 , C08J5/04 , B27N3/00 , B01F17/16
Abstract: A method is claimed for using cationically stabilised aq. polymer dispersions (PD) as binders for moulded prods. based on finely divided materials with a negative surface charge (M). These dispersions contain (A) a dispersed copolymer (A) with a static Tg of 40-110 deg. C, based on (a) 30-80 pts. wt. styrene, (b) 20-70 pts. wt. (1-8C alkyl) (meth)acrylate(s) and (c) 0-10 pts. wt. other radically copolymerisable monomers, and (B) as dispersant, a mixt. of prim., sec. and/or tert. organic mono-amine(s) with at least 8 C atoms and acid addn. salts thereof. Also claimed are (i) polymer dispersions (PD) as above; (ii) moulded prods. based on materials (M) and binders (PD); (iii) rectangular moulded sheets based on (M) and (PD), with a length and breadth of 30-70 cm and a thickness of 1-20 mm; (iv) a process for the prodn. of mouldings (ii), by suspending material (M) in water, adding dispersion (PD), precipitating copolymer (A) onto material (M) by adding bases or salts of multivalent anions, placing the mixt. obtd. in a mould, removing water, and drying; (v) moulded prods. obtd. by this process.
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公开(公告)号:DE3837324A1
公开(公告)日:1990-05-10
申请号:DE3837324
申请日:1988-11-03
Applicant: BASF AG
Inventor: LITTMANN DIETER DR , TELSER THOMAS DR , KOCH HORST DR , HUEMMER WOLFGANG DR , MEISTER MARTIN DR
Abstract: The invention relates to a light-sensitive recording material which contains a mixture of polymers containing carboxyl groups and having lateral ethylenically unsaturated groups, one or more ethylenically unsaturated monomeric compounds, a photoinitiator and a beta -aminoalcohol. … It is suitable for the production of printing plates.
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