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：EP0716101A3

公开(公告)日：1998-05-27

申请号：EP95118929

申请日：1995-12-01

Applicant: BASF AG

Inventor： GUENTHERBERG NORBERT DR ,  JAHNS EKKEHARD DR ,  FISCHER WOLFGANG DR ,  MCKEE GRAHAM EDMUND DR ,  ROSENAU BERNHARD DR

IPC: C08F2/18 ,  C08F2/20 ,  C08F212/06 ,  C08F212/10 ,  C08L25/12 ,  C08L51/00 ,  C08L51/04 ,  C08L55/02

CPC classification number: C08L25/12 ,  C08F212/10 ,  C08L51/04 ,  C08L55/02 ,  C08L2666/04 ,  C08L2666/24

Abstract: Thermoplastische Formmassen aus

A) 35 bis 99,5 Gew.-% eines Matrix-Copolymerisates (A) aus

a 1 ) 50 bis 95 Gew.-% Styrol und/oder α-Methylstyrol,
a 2 ) 5 bis 50 Gew.-% Acrylnitril, und
a 3 ) 0 bis 20 Gew.-% weiteren Comonomeren

B) 0 bis 50 Gew.-% eines in (A) unlöslichen partikelförmigen Pfropfcopolymerisates (B) mit einem mittleren Teilchendurchmesser d 50 von 0,03 bis 1 µm aus

b 1 ) 30 bis 80 Gew.-% eines Kerns aus einem kautschukelastischen Polymeren mit einer Glasübergangstemperatur unter -10°C, und
b 2 ) 20 bis 70 Gew.-% einer Pfropfhülle aus einem Polymeren, das mit (A) verträglich oder teilverträglich ist,
und
C) 0,5 bis 30 Gew.-% eines in (A) unlöslichen partikelförmigen vernetzten Copolymerisates (C) mit einem mittleren Teilchendurchmesser d 50 von 0,5 bis 50 µm aus

c 1 ) 50 bis 89,95 Gew.-% Styrol und/oder α-Methylstyrol,
c 2 ) 10 bis 50 Gew.-% Acrylnitril,
c 3 ) 0,05 bis 5 Gew.-% eines polyfunktionellen, vernetzenden Monomeren,
c 4 ) 0 bis 10 Gew.-% eines Monomeren, das saure oder basische Gruppen enthält, und
c 5 ) 0 bis 20 Gew.-% weiteren Comonomeren.

Abstract translation: 热塑性模塑材料（I）含有（A）35-99.5重量％的基体共聚物（A）（a1）的50-95％（重量）苯乙烯和/或α-甲基苯乙烯（AMS），（A2）5-50 ％（重量）的丙烯腈和（a3）中的0-20％其它共聚单体重量，接枝共聚物（B）具有平均颗粒直径（B）的0-50重量％。 的0.03-1微米所有这是INSOL（D50）。 在（A）中，从（B1）30〜80与Tg的橡胶弹性的聚合物芯的重量％衍生的低于-10摄氏度和（b2）20〜70重量％的接枝壳的％构成的聚合物的 所有这是完全或与（A）和交联共聚物颗粒（C）具有0.5-50微米的所有的平均D50是INSOL的（C）0.5-30％（重量）部分地相容。 在（A）丙​​烯腈，衍生自（C1）50-89.95％（重量）苯乙烯和/或AMS，（c2）的10-50％（重量），（C3）0.05-5重量％的多官能交联单体，（C4）0 用酸或碱性GPS的单体-10重量％。 和（C 5）0-20％（重量）其它共聚单体。 所以要求保护的是：（ⅰ）交联共聚物颗粒（C）如上; （ii）用于所述prodn的处理。 的（C），其包括，制备方法（a）中。 分散液的微细水溶液，其中单体液滴具有通过使混合物的0.5-50微米的平均D50。 contg。 单体（C1） - （C5），以密集的剪切通过搅拌器叶片的手段，用10-25米/秒的圆周速度。 和（b）聚合物伊辛混合。 与小于3米/秒的中等搅拌速度自由基引发剂; （三）粒状共聚物（C）obtd。 通过这种方法; （四）模压电棒。 从（I）制成。

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：ES2124353T3

公开(公告)日：1999-02-01

申请号：ES94114215

申请日：1994-09-09

Applicant: BASF AG

Inventor： FISCHER WOLFGANG DR ,  GUNTHERBERG NORBERT DR ,  MC KEE GRAHAM EDMUND DR

IPC: C08F2/22 ,  C08F212/00 ,  C08F212/04 ,  C08F212/06 ,  C08F220/10 ,  C08F220/12 ,  C08L25/00 ,  C08F220/42 ,  C08L25/08 ,  C08L25/12 ,  C08L25/14 ,  C08L33/06 ,  C08L33/18

Abstract: Particulate polymer A, having a mean particle size of below 1000 nm, comprising a1: up to 99.8 % by weight of at least one vinylaromatic monomer a1, a2: up to 99.8 % by weight of at least one alkyl methacrylate a2 having 1 to 8 carbon atoms in the alkyl radical, a3: up to 50 % by weight of at least one polar, copolymerisable, ethylenically unsaturated monomer a3, a4: from 0.1 to 10 % by weight of at least one polyfunctional, crosslinking monomer a4, a5: from 0.1 to 15 % by weight, preferably from 0.5 to 10 % by weight, of at least one monomer a5 containing one or more acidic, basic or epoxy groups, where the total amount of constituents a1, a2 and a3 is from 75 % by weight to 99.8 % by weight, based on A, and the total amount of a1, a2, a3, a4 and a5 is 100 % by weight, based on A.

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：DE19614293A1

公开(公告)日：1997-10-16

申请号：DE19614293

申请日：1996-04-11

Applicant: BASF AG

Inventor： GAUSEPOHL HERRMANN DR ,  FISCHER WOLFGANG DR ,  LOTH WOLFGANG DR

IPC: C08F2/00 ,  C08F279/02 ,  C08F287/00 ,  C08F297/04 ,  C08F279/00 ,  C08L25/12 ,  C08L53/02

Abstract: Described is a method for the production in two stages of, in particular, impact modified styrene and styrene-acrylonitrile polymer moulding materials in solution. In a first reaction zone in which at least the last section in the direction of flow consists of a reactor, in particular a tubular reactor without back-mixing, a styrene-butadiene block copolymer is produced by anionic polymerization, the active chain ends optionally being coupled and/or stripped off. Immediately afterwards, the copolymer is fed to a second reaction zone where a styrene homopolymer or copolymer is produced by radical polymerization or copolymerization, respectively.

公开(公告)号：DE59403218D1

公开(公告)日：1997-07-31

申请号：DE59403218

申请日：1994-11-30

Applicant: BASF AG

Inventor： NIESSNER NORBERT DR ,  FISCHER WOLFGANG DR

IPC: C08F285/00 ,  C08L25/12 ,  C08L51/00 ,  C08L51/06 ,  C08L101/00

Abstract: The present invention relates to graft copolymers obtainable by (A) polymerisation of from 10 to 89% by weight of a mixture essentially comprising either (a1) from 70 to 99.89% by weight of a C1-C18-alkyl radical of acrylic acid, where the alkyl radical may be monosubstituted by a phenyl or phenoxy group, (a2) from 0.1 to 10% by weight of a polyfunctional monomer, (a3) from 0 to 29.89% by weight of an ethylenically unsaturated monomer carrying no acid group which is different from (a1) and (a2) and can be copolymerised therewith, and (a4) from 0.01 to 10% by weight of a copolymerisable monomer containing at least one acid group, or (a5) from 49.99 to 99.99% by weight of at least one diene, (a6) from 0 to 50% by weight of a monomer which does not carry an acid group and can be copolymerised therewith and (a7) from 0.01 to 10% by weight of a copolymerisable monomer having at least one acid group, in the presence of from 1 to 80% by weight of a crosslinked silicone rubber, and (B) polymerisation of from 10 to 89% by weight of a mixture essentially comprising (b1) from 50 to 99.99% by weight of a styrene compound of the formula (I) in which R and R , independently of one another, are hydrogen, C1-C8-alkyl or phenyl which is up to trisubstituted by C1-C4-alkyl, and/or a C1-C8-alkyl ester of methacrylic or acrylic acid, (b2) from 0 to 50% by weight of a monomer selected from the group consisting of methacrylonitrile, acrylonitrile, methacrylic acid, acrylic acid, maleic anhydride, maleimide which is N-substituted by C1-C4-alkyl, vinyl esters of aliphatic C2-C8-carboxylic acids, acrylamide and vinyl methyl ether, and (b3) from 0.01 to 20% by weight of a copolymerisable monomer containing at least one basic group, in the presence of the graft copolymer (A).

公开(公告)号：DE59305049D1

公开(公告)日：1997-02-20

申请号：DE59305049

申请日：1993-10-08

Applicant: BASF AG

Inventor： FISCHER WOLFGANG DR ,  DECKERS ANDREAS DR ,  GUENTHERBERG NORBERT DR ,  NIESSNER NORBERT DR

IPC: C08F265/04 ,  C08F265/06 ,  C08F279/02 ,  C08L51/00 ,  C08L51/04 ,  C08L101/00

公开(公告)号：DE19516283A1

公开(公告)日：1996-11-07

申请号：DE19516283

申请日：1995-05-04

Applicant: BASF AG

Inventor： FISCHER WOLFGANG DR ,  GUENTHERBERG NORBERT DR

IPC: C08K5/36 ,  C08K5/1545 ,  C08K5/372 ,  C08L25/12 ,  C08L51/00 ,  C08L51/04 ,  C08L51/06 ,  C08K5/15 ,  C08K5/38 ,  C08L25/08 ,  C08J3/20 ,  F21V3/04

Abstract: Thermoplastic moulding materials (I), contg.: (A) 30-80 wt% (w.r.t. A + B) rubber-elastic grafting base derived from (A1) 90-99.9 wt% (1-8C alkyl) acrylate(s) and (A2) 0.1-10 wt.% polyfunctional crosslinking monomer(s) and (B) 20-70 wt.% of a grafted shell derived from (B1) 0-100 wt.% vinyl-aromatic monomer, pref. styrene or alkylstyrene, pref. alpha -methylstyrene (AMS), and/or (B2) 0-100 wt% unsatd. polar comonomer(s), pref. acrylonitrile, MMA or phenyl-maleimide; (C) 0.001-1 pts. wt. alpha-tocopherol (ATP) (to 100 pts. wt. (A + B); (D) 0.5-10 times the amt. (w.r.t. C) of a thiodipropionate ester, pref. dilauryl or distearyl thiodipropionate; (E) 0-95 pts. wt. (to 100 pts. wt. A + B + C + D + E) of a hard matrix based on (E1) 60-90 wt% styrene and/or AMS, (E2) 10-40 wt% acrylonitrile, and (E3) 0-40 pts. wt. PMMA (w.r.t. 100 pts. wt. E); and (F) opt. conventional additives. Also claimed is: (i) a process for the prodn. of (I), comprising (a) prepn. of a graft copolymer dispersion from (A) and (B), (b) addn. of the stabiliser mixt. (C + D) in the form of an emulsion, and (c) pptn. of the copolymer; (ii) mouldings made from (I) or obtd. by this process. Pref. component (A) is grafted onto 5-50 wt% (w.r.t. A + B) of a core (K) with a Tg of more than 25 degrees C, which is derived from the monomers used in (B) and opt. crosslinked with the monomers used in (A2). Pref. (D) is dilauryl thiodipropionate (DLTDP). The stabiliser mixt. is prepd.: (a) by mixing components (C) and (D), melting with stearic acid and then mixing with a base, pref. KO; or (b) by mixing (C) and (D) and then mixing with an aq. soln. of emulsifier, pref. K stearate, alkylsulphonate or sulpho- succinate ester.