公开(公告)号：DE19804912A1

公开(公告)日：1999-08-12

申请号：DE19804912

申请日：1998-02-07

Applicant: BASF AG

Inventor： FISCHER WOLFGANG DR ,  BUECHNER EUGEN-WALTER DR ,  DEIMLING AXEL DR ,  GAUSEPOHL HERMANN DR ,  SCHADE CHRISTIAN DR

IPC: B01J19/18 ,  C08F2/00 ,  C08F279/02 ,  C08F287/00 ,  C08F279/00

Abstract: The present invention relates to a method for producing impact-resistant modified styrene polymers, wherein said method comprises the anionic polymerisation of styrene in the presence of a rubber in one or more serially-mounted polymerisation reactors. The rubber is produced in the shape of a solution during a process carried out immediately upstream. The rubber solvent, which has a boiling point lower than that of the styrene or ethyl benzene, is removed by distillation with vaporisation cooling from at least one of said polymerisation reactors using the heat generated during the polymerisation process, and is further fed back to the rubber production step.

公开(公告)号：DE19737959A1

公开(公告)日：1999-03-04

申请号：DE19737959

申请日：1997-08-30

Applicant: BASF AG

Inventor： SCHNEIDER MICHAEL DR ,  GOTTSCHALK AXEL DR ,  GAUSEPOHL HERMANN DR

IPC: C08L25/08 ,  C08L51/00 ,  C08L51/04 ,  C08L53/02 ,  C08L71/12 ,  C08L77/00 ,  C08L77/02 ,  C08J5/00 ,  C08J5/18 ,  C08L23/08 ,  C08L25/04 ,  D01F8/12

Abstract: The invention relates to thermoplastic moulding materials containing: A) 15 to 84 wt. % of a thermoplastic polyamide; B) 15 to 84 wt. % of a copolymer composed of vinylaromatic monomers and of 1,1-diphenylethylene or derivatives thereof which are eventually substituted at the aromatic rings with alkyl groups containing up to 22 carbon atoms; C) 1 to 30 wt. % of a polymer modified by polar groups or of polymer mixtures; D) 0 to 69 wt. % of other additives and ancillary treatment agents. The total percentage of the constituents A) to D) is equal to 100 %.

公开(公告)号：DE19733535A1

公开(公告)日：1999-02-04

申请号：DE19733535

申请日：1997-08-02

Applicant: BASF AG

Inventor： GLUECK GUISCARD DR ,  HAHN KLAUS DR ,  MC KEE GRAHAM EDUND DR ,  WUENSCH JOSEF DR ,  FISCHER WOLFGANG DR ,  GAUSEPOHL HERMANN DR

IPC: C08J9/20 ,  C08J9/228 ,  B65D65/38 ,  C08F12/08

公开(公告)号：DE59406751D1

公开(公告)日：1998-10-01

申请号：DE59406751

申请日：1994-02-12

Applicant: BASF AG

Inventor： BENDER DIETMAR DR ,  WALTER HANS-MICHAEL DR ,  GAUSEPOHL HERMANN DR ,  KNOLL KONRAD DR ,  JUNG ANDREAS DR ,  BENEDIX FRANZ ,  NAEGELE PAUL ,  STEMBER HELMUTH

IPC: B65D77/20 ,  C08J5/18 ,  C08K5/00 ,  C08L53/02 ,  C08L91/00

公开(公告)号：DE19705828A1

公开(公告)日：1998-08-20

申请号：DE19705828

申请日：1997-02-15

Applicant: BASF AG

Inventor： SCHNEIDER MICHAEL DR ,  FISCHER MICHAEL DR ,  GAUSEPOHL HERMANN DR

IPC: C08F285/00 ,  C08L51/04 ,  C08L53/00 ,  C08L71/12 ,  C08F210/14 ,  C08F297/02 ,  C08L23/24

Abstract: The invention relates to a mixture containing 50-90 wt. % of a styrene-diphenyl ethylene copolymer obtained by anionic block (co) polymerization of styrene and 1,1-diphenyl-ethylene or a block copolymer (A) and 10-50 wt. % of a particle-shaped graft copolymer (B) with a transition temperature (Tg) of less than -10 DEG C and at least 3, preferably 4 layers or shells whereby at least one shell or the graft nucleus (B1) has a transition temperature (Tg) of more than 25 DEG C and at least one shell or graft nucleus has a transition temperature (Tg) of less than 25 DEG C, preferably below O DEG C wherein any spatial sequence of the graft shells is possible.

公开(公告)号：DE19523587A1

公开(公告)日：1997-01-02

申请号：DE19523587

申请日：1995-06-29

Applicant: BASF AG

Inventor： LOTH WOLFGANG DR ,  KNOLL KONRAD DR ,  GAUSEPOHL HERMANN DR

IPC: C08F2/00 ,  C08F12/06 ,  C08F12/00

Abstract: The invention concerns a process for the anionic polymerization or copolymerization of vinyl aromatic compounds such as styrene in solution with an initial monomer concentration of between 40 and 100 wt.% under non-isothermic conditions, preferably in a pipe reactor or pipe assembly reactor, of which a substantial part is provided with means preventing the exchange of heat with the environment, toluene, methylcyclohexane, ethylbenzene or Decalin preferably being used as solvent. The temperature of the polymer solution leaving the reaction chamber is at least 170 DEG C. A styrene polymer containing fewer than 50 ppm monomers is produced.

公开(公告)号：DE4436499A1

公开(公告)日：1996-04-25

申请号：DE4436499

申请日：1994-10-13

Applicant: BASF AG

Inventor： KNOLL KONRAD DR ,  GAUSEPOHL HERMANN DR

IPC: C08F212/32 ,  C08F297/02 ,  C08L25/02 ,  C08L53/00

Abstract: Thermoplastic moulding compsn. (I) contains (a) 10-100 wt.% copolymer (II) of 1,1-diphenylethylenes of formula (III) and styrenes of formula (IV); (b) 0-3000 ppm (III) and (c) 0-500 ppm (IV) w.r.t. (I); (d) 0-90 wt.% other polymers; and (e) 0-50 wt.% other additives and processing aids w.r.t. the total compsn.. R1, R2 = H or 1-22C alkyl; R3 = H or 1-4C alkyl; and a, b = 0, 1, 2, 3, 4 or 5. Also claimed are a method of producing the compsn. and block copolymers (IIa) of (III) and (IV).

公开(公告)号：DE3850334D1

公开(公告)日：1994-07-28

申请号：DE3850334

申请日：1988-09-22

Applicant: BASF AG

Inventor： TAUBITZ CHRISTOF DR ,  GAUSEPOHL HERMANN DR ,  BOEHLKE KLAUS DR

IPC: C08G65/48 ,  C08K5/49 ,  C08L25/02 ,  C08L51/08 ,  C08L71/12 ,  C08L77/00

公开(公告)号：DE4236058A1

公开(公告)日：1994-04-28

申请号：DE4236058

申请日：1992-10-26

Applicant: BASF AG

Inventor： BRANDSTETTER FRANZ DR ,  GAUSEPOHL HERMANN DR ,  THIELE REINER PROF DR

IPC: B01J19/18 ,  B01J19/24 ,  C08F2/02 ,  C08F12/08

Abstract: Continuous radical bulk polymerisation of vinyl monomers opt. contg. small amts. of solvent and/or initiator is such that: (a) the starting mixt. is fed to a stirred or circulating reactor (2) where it is converted to a polymer content of 45-65 (esp. 50-60) wt.% before being passed to an adiabatically operated tubular reactor (5) in which an approx. plug flow dominates, the polymer content being increased to 65-90 (esp. 70-85) wt.% in this reactor (5), with the monomer fraction at outlet (6) being at least 10 wt.%; and (b) the polymer prodn. in stirred reactor (2) is at least 1.5 times that in tubular reactor (5) and the polymer soln. leaving reactor (5) is degassed without further reaction. ADVANTAGE - Monomers such as styrene can be polymerised to high conversions with a high space-time yield.

公开(公告)号：DE4234601A1

公开(公告)日：1994-04-21

申请号：DE4234601

申请日：1992-10-14

Applicant: BASF AG

Inventor： BRANDSTETTER FRANZ DR ,  GAUSEPOHL HERMANN DR ,  THIELE REINER PROF DR

IPC: C08F297/04

Abstract: A process for the preparation of block copolymers of styrene or equivalents thereof on the one hand and of butadiene or equivalents thereof on the other hand by sequential anionic polymerisation, in which firstly one first monomer and the organometallic compound serving as initiator are combined to form a reaction mixture, and the reaction is continued until at least some of the first monomer has been consumed and at least one further monomer is then added and in each case reacted partly or fully, characterised in that the polymerisation is carried out continuously in a manner known per se in a tubular reactor, where the reaction of one monomer in each case is carried out in one reactor section (zone) in each case, and at least two reactor sections are separated by a mixing zone.