公开(公告)号：JPH1045811A

公开(公告)日：1998-02-17

申请号：JP11682097

申请日：1997-05-07

Applicant: BASF AG

Inventor： GAUSEPOHL HERMANN DR ,  FISCHER WOLFGANG DR ,  LOTH WOLFGANG DR ,  THIELE REINER PROF DR

IPC: C08F2/00 ,  B01J19/24 ,  C08F2/06 ,  C08F12/04 ,  C08F112/08

Abstract: PROBLEM TO BE SOLVED: To provide a method for the continuous anionic polymerization of styrene which is economical in aspects of practicable space time yield and plant cost and has the possibility of an influence upon a desired molecular weight distribution of the polymer within a relatively wide range without carrying out multiple metering and feeding of the monomer or an initiator to form only an extremely small amount of a low-molecular weight polymer. SOLUTION: This method for producing a polystyrene comprises continuously carrying out the anionic polymerization of styrene monomer by using a catalyst based on a metal alkyl. In this case, the styrene monomer is fed to a circulating type reactor 1, arranged as a loop type closed pipe and operated at an essentially constant temperature. Furthermore, the circulating speed and residence time of a reactional mixture are set so that the conversion rate of the styrene monomer may attain at least 50% and the polymerization may be completed in a tubular reactor 2 without essentially causing any back mixing.

公开(公告)号：JP2000154299A

公开(公告)日：2000-06-06

申请号：JP26252199

申请日：1999-08-12

Applicant: BASF AG

Inventor： WUENSCH JOSEF DR ,  KNOLL KONRAD ,  GAUSEPOHL HERMANN DR

IPC: C08F293/00 ,  C08K5/00 ,  C08L53/00

Abstract: PROBLEM TO BE SOLVED: To provide a thermoplastic molding compsn. effectively modified having good heat resistance and impact strength. SOLUTION: This compsn. comprises 20-96 wt.%. star polymer (A) obtainable by polymerising a vinylaromatic monomer with a branched monomer building block having at least two vinylaromatic functional groups, 3-50 wt.%. copolymer (B) contg. a vinylaromatic monomer, 1,1-diphenylethylene, and, if desired, a diene, 1-15 wt.%. polyarylene ether (C), 0-5 wt.%. nucleating agent (D), 0-5 wt.%. antioxidant (E), 0-5 wt.%. stabilizer (F), and 0-50 wt.%. fibrous or particulate filler (G).

公开(公告)号：JPH10310675A

公开(公告)日：1998-11-24

申请号：JP10742498

申请日：1998-04-17

Applicant: BASF AG

Inventor： GLUECK GUISCARD DR ,  HAHN KLAUS DR ,  HENN ROLF DR ,  WASSMER KARL-HEINZ DR ,  GAUSEPOHL HERMANN DR ,  KNOLL KONRAD ,  BATSCHEIDER KARL-HEINZ

IPC: C08J9/14 ,  C08F287/00 ,  C08J9/16 ,  C08L25/06 ,  C08L51/04 ,  C08L53/02

Abstract: PROBLEM TO BE SOLVED: To provide an expandable rubber-modified styrene polymer showing improved elasticity recovery, by incorporating a low-boiling blowing agent in a polymer mixture comprising a continuous phase of a styrene copolymer and rubber particles dispersed therein and comprising a butadiene/styrene block copolymer, and having a lamella structure free from polystyrene. SOLUTION: The expandable styrene polymer contains desirably 85-93 wt.% polystyrene or styrene copolymer (containing up to 50 wt.%, desirably up to 80 wt.% comonomer). The polystyrene contains a small amount (0.005-0.05 mol based on the styrene) of a crosslinking agent to be copolymerized. The expandable styrene polymer is desirably one containing 5-30 wt.% butadiene/styrene block copolymer in the polymer mixture and dispersed in the polystyrene phase in the form of particles. The ratio of the average length 1 of the rubber particles to the average thickness d is desirably above 5/1. The mixture contains 2-15 pts.wt., based on the composition, low-boiling blowing agent.

公开(公告)号：EP0814098A2

公开(公告)日：1997-12-29

申请号：EP97109943

申请日：1997-06-18

Applicant: BASF AG

Inventor： RUEHL THOMAS DR ,  BREITSCHEIDEL BORIS DR ,  HENKELMANN JOCHEN DR ,  HENNE ANDREAS DR ,  LEBKUECHER ROLF DR ,  KNOLL KONRAD DR ,  WEIGUNY SABINE DR ,  NAEGELE PAUL ,  GAUSEPOHL HERMANN DR ,  NIESSNER NORBERT DR

IPC: B01J23/44 ,  B01J23/46 ,  B01J35/10 ,  C07B35/02 ,  C07B61/00 ,  C07C29/141 ,  C07C29/149 ,  C07C29/20 ,  C07C31/12 ,  C07C31/135 ,  C07C31/20 ,  C07C35/08 ,  C07C35/21 ,  C07C209/72 ,  C07C211/35 ,  C08F4/70 ,  C08F4/80 ,  C08F8/04 ,  C08F36/06 ,  C08F297/04

CPC classification number: B01J23/462 ,  B01J23/44 ,  B01J35/0053 ,  B01J35/10 ,  B01J35/1019 ,  B01J35/108 ,  C08F8/04

Abstract: Verfahren zur Umsetzung einer organischen Verbindung in Gegenwart eines Katalysators, der als Aktivmetall Ruthenium alleine oder zusammen mit mindestens einem Metall der I., VII. oder VIII. Nebengruppe des Periodensystems in einer Menge von 0,01 bis 30 Gew.-%, bezogen auf das Gesamtgewicht des Katalysators, aufgebracht auf einem Träger, umfaßt, dadurch gekennzeichnet, daß 10 bis 50% des Porenvolumens des Trägers von Makroporen mit einem Porendurchmesser im Bereich von 50 nm bis 10.000 nm und 50 bis 90% des Porenvolumens des Trägers von Mesoporen mit einem Porendurchmesser im Bereich von 2 bis 50 nm gebildet werden, wobei sich die Summe der Porenvolumina zu 100% addiert, sowie den Katalysator an sich.

Abstract translation: 新催化剂（I）在载体（II）上含有0.01-30重量％的钌或钯作为活性金属，任选与第I，VII或VIII族过渡金属一起，其中（新特征）10-50％ 的孔体积由孔径（PD）为50-10,000nm的大孔组成，50-90％由PD为2-50nm的中孔组成。 还要求的是（i）在（I）存在下转化含有多个CC键的聚合物的方法，和（ii）在（I）存在下转化有机化合物的方法，其中活性金属是钌 。

公开(公告)号：ES2252134T3

公开(公告)日：2006-05-16

申请号：ES01127601

申请日：2001-11-20

Applicant: BASF AG

Inventor： SCHADE CHRISTIAN DR ,  DESBOIS PHILIPPE DR ,  FISCHER WOLFGANG DR ,  GAUSEPOHL HERMANN DR ,  DEFFIEUX ALAIN PROF DR ,  MENORET STEPHANE

IPC: C08F2/38 ,  C08F4/46 ,  C08F4/48 ,  C08F4/50 ,  C08F12/08 ,  C08F4/52

Abstract: Procedimiento para la polimerización aniónica de estireno, en caso dado junto con cantidades subordinadas de comonómeros, por medio de una combinación de iniciadores de organilo metálico A. alquilo o alcoholato de litio, B. alquilo o alcoholato de metal (II), C. alquilo o alcoholato de aluminio de la fórmula Al R12R2 con R1 = alquilo con 1 a 4 átomos de carbono y R2 = H, R1 o -O-C2H5. caracterizado porque la polimerización se lleva a cabo en presencia de un 5 a un 500 % en moles, referido a A+B+C de una base de Lewis a temperaturas por encima de 80ºC.

公开(公告)号：ES2135964T3

公开(公告)日：1999-11-01

申请号：ES97107043

申请日：1997-04-29

Applicant: BASF AG

Inventor： GAUSEPOHL HERMANN DR ,  FISCHER WOLFGANG DR ,  LOTH WOLFGANG DR ,  THIELE REINER PROF DR

IPC: C08F2/00 ,  B01J19/24 ,  C08F2/06 ,  C08F12/04 ,  C08F112/08

Abstract: The production of polystyrene is by continuous anionic polymerisation of styrene using a metal alkyl- based catalyst. the process comprises (1) polymerisation in an isothermally- operated circulatory tubular loop reactor, with the rate of circulation and residence time of the reaction mixture adjusted to give a monomer conversion of at least 50%, followed by (2) polymerisation to completion in a tubular reactor with no back- mixing.

公开(公告)号：DE19721400A1

公开(公告)日：1998-11-26

申请号：DE19721400

申请日：1997-05-22

Applicant: BASF AG

Inventor： FISCHER WOLFGANG DR ,  GAUSEPOHL HERMANN DR ,  LAETSCH STEFAN DR ,  SCHADE CHRISTIAN DR

IPC: C08F2/00 ,  C08F36/04 ,  C08F36/00

Abstract: The invention relates to a method for anionic polymerisation of dienes or of dienes and vinyl aromatic monomers in a vinyl aromatic monomer or mixture of monomers to form homopolydienes or copolymers or mixed homopolydienes and copolymers. The polymerisation is carried out in a tempered, hydraulically filled tubular flow reactor or a multitube flow reactor.

公开(公告)号：DE19701868A1

公开(公告)日：1998-07-23

申请号：DE19701868

申请日：1997-01-21

Applicant: BASF AG

Inventor： SCHNEIDER MICHAEL DR ,  LOTH WOLFGANG DR ,  GAUSEPOHL HERMANN DR

IPC: C08F297/02 ,  C08L25/06 ,  C08L25/08 ,  C08L53/00 ,  C08L53/02

Abstract: The invention concerns a mixture of a copolymer (A) comprising between 50 and 99 mol % polymerized-in styrene units and between 1 and 50 mol % polymerized-in units of 1,1-diphenylethylene and/or a block copolymer comprising at least one polystyrene block and at least one poly(styrene/diphenylethylene) block of the above composition. The invention further concerns a process for preparing this mixture by the anionic block (co)polymerization of styrene or styrene and diphenylethylene, and an impact-resistant modified polystyrene (B).

公开(公告)号：DE19623415A1

公开(公告)日：1997-12-18

申请号：DE19623415

申请日：1996-06-12

Applicant: BASF AG

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

IPC: C08F297/04 ,  C08L53/02 ,  C08J5/00 ,  C08J5/18 ,  D01F6/96

Abstract: Block copolymers with blocks A and B of the general structure (A - B)n, A - B - A, B - A - B, X [(A - B)n]m, X [( B - A)n]m, X [(A - B - A)n]m or X [(B - A - B)n]m in which A is a diene-based block and B is a block of copolymers from monomers of the general formulae (I) and (II), where R1 = H or an alkyl radical with 1-22 C atoms, R2 = H or an alkyl radical with 1-22 C atoms, R3 = H or an alkyl radical with 1-4 C atoms, a = 0, 1, 2, 3, 4 or 5, b = 0, 1, 2, 3, 4 or 5, X is the radical of an m-functional coupling agent, n is a whole number in the range from 1 to 5 and m is a whole number in the range from 2 to 20.

公开(公告)号：DE4445139A1

公开(公告)日：1996-06-20

申请号：DE4445139

申请日：1994-12-17

Applicant: BASF AG

Inventor： LOTH WOLFGANG DR ,  WARZELHAN VOLKER DR ,  GAUSEPOHL HERMANN DR

IPC: C08F279/02 ,  C08F287/00 ,  B29B7/02 ,  C08L51/04 ,  C08L71/12

Abstract: The invention pertains to a process for producing impact-resistant modified polystyrene molding compounds by continuous anionic polymerization of styrene monomers in the presence of a rubber in a single reaction zone, wherein a styrene solution containing as rubber a styrene-butadiene block rubber or a mixture of a styrene-butadiene block rubber with a polybutadiene rubber, the styrene content of which, relative to the rubber or rubber mixture, is between 10 and 90 wt %, is fed to a reaction mixture, the polymer content of which is above the phase inversion point. The invention also pertains to a molding compound produced by this process and its use in manufacturing sheets and moldings.