公开(公告)号：DE59706702D1

公开(公告)日：2002-04-25

申请号：DE59706702

申请日：1997-12-01

Applicant: BASF AG

Inventor： JUENGLING STEPHAN ,  GAUSEPOHL HERMANN ,  WARZELHAN VOLKER ,  MCKEE EDMUND ,  FISCHER MICHAEL

IPC: C08L55/00 ,  C08F2/00 ,  C08F20/00 ,  C08F20/12 ,  C08F287/00 ,  C08F297/02 ,  C08L53/00

Abstract: Anionic polymerization is used for the preparation of reaction mixtures comprising homopolymers, copolymers or block copolymers, and of homopolymers, copolymers and block copolymers which comprise acrylates or methacrylates or acrylates and methacrylates, wherein olefinically unsaturated compounds which are not acrylate or methacrylate derivatives are employed as solvent or as solvent component.

公开(公告)号：DE59704476D1

公开(公告)日：2001-10-04

申请号：DE59704476

申请日：1997-10-21

Applicant: BASF AG

Inventor： JUENGLING STEPHAN ,  GAUSEPOHL HERMANN ,  WEISS HORST ,  BAUMGAERTEL MICHAEL

IPC: C08F4/46 ,  C08F4/48 ,  C08F4/50

Abstract: Initiator systems for anionic polymerization of vinyl monomers with polar groups, containing A) a1) at least one starter having general formula R -M or R -M -RC, wherein R , R or R independently stand for branched or straight-chain alkyl radicals of 1-6 carbon atoms, aryl radicals of 6-20 carbon atoms or alkyl radicals with 1-6 carbon atoms carrying at least one phenyl radical and M stands for a metal selected from the group of alkaline metals, and M stands for a metal selected from the group of alkaline earth metals, or a2) as a starter "living" polymer chains, whose chain ends are possibly stabilized by sterically demanding and/or aromatic radicals and B) at least one alkaline (I) or alkaline earth metal alcoholate (II) or at least one alkaline (I) and at least one alkaline earth metal alcoholate (II) which have at least one amino or one phosphino substituent or at least one amino and one phosphino substituent.

公开(公告)号：AU3735201A

公开(公告)日：2001-08-07

申请号：AU3735201

申请日：2001-01-26

Applicant: BASF AG

Inventor： KEE GRAHAM EDMUND MC ,  GAUSEPOHL HERMANN ,  NIESSNER NORBERT

IPC: C08F285/00 ,  C08L51/04

Abstract: The invention relates to a process for preparing an impact-modified plastic based on grafted crosslinked rubber particles, and also to an impact-modified plastic obtainable by the process. To prepare the impact-modified plastic, (a) particles of a crosslinked rubber are produced from a first monomer mixture which has a content of

公开(公告)号：DE10003508A1

公开(公告)日：2001-08-02

申请号：DE10003508

申请日：2000-01-27

Applicant: BASF AG

Inventor： MC KEE GRAHAM EDMUND ,  GAUSEPOHL HERMANN ,  NIESNER NORBERT

IPC: C08F265/04 ,  C08F291/02 ,  C08L51/04 ,  C08L55/02

Abstract: The invention relates to a method for producing impact resistant plastics on the basis of cross-linked rubber particles. The inventive method comprises the following steps: (a) producing an aqueous dispersion or suspension of particles of a cross-linked rubber from a first monomer mixture that has a conjugated diene content of less than 50 wt.- %, preferably less than 5 wt.- %, especially less than 2 wt.- %, (b) optionally precipitating the dispersion or suspension whereby an aqueous rubber particle mixture with a water content of at least 5 wt.- % is obtained, (c) adding said dispersion or suspension of the rubber particles or the aqueous rubber particle mixture to a second mixture that contains at least one further monomer, and (d) polymerizing the monomers of the second mixture. The invention also relates to the plastic obtained according to the inventive method.

公开(公告)号：AU4920900A

公开(公告)日：2000-12-12

申请号：AU4920900

申请日：2000-05-11

Applicant: BASF AG

Inventor： JUNGLING STEPHAN ,  SCHADE CHRISTIAN ,  GAUSEPOHL HERMANN ,  WARZELHAN VOLKER ,  MOORS RAINER ,  SCHACH HANSJORG ,  QUEISSER JOACHIM ,  LUINSTRA GERRIT ,  DEMETER JURGEN

IPC: C08F2/00 ,  C08F2/06 ,  C08F2/38 ,  C08F4/60 ,  C08F4/62 ,  C08F4/639 ,  C08F4/642 ,  C08F4/646 ,  C08F36/04 ,  C08F236/10 ,  C08F279/02 ,  C08F297/04 ,  C08L55/02

Abstract: In a process for polymerizing dienes in a solvent comprising vinylaromatic monomers, the polymerization is carried out in the presence of a metal compound of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo or W as catalyst and a Lewis acid as cocatalyst and, if desired, an alkylating agent and, if desired, a regulator. This process can be used for preparing high-impact polystyrene, acrylonitrile-butadiene-styrene copolymers or methyl methacrylate-butadiene-styrene copolymers.

公开(公告)号：DE19914075A1

公开(公告)日：2000-09-28

申请号：DE19914075

申请日：1999-03-27

Applicant: BASF AG

Inventor： KNOLL KONRAD ,  FISCHER WOLFGANG ,  GAUSEPOHL HERMANN

IPC: C08J5/00 ,  C08F293/00 ,  C08F297/04 ,  C08L25/06 ,  C08L53/02

Abstract: New block copolymers (I) comprise at least two vinylaromatic hard blocks (S1 and S2) and at least one interposed statistical diene/vinylaromatic soft block (B/S), where the proportion of hard blocks is more than 40 wt.% and the 1,2-vinyl content of the soft block is less than 20%. Independent claims are also included for the following: (1) polymer mixtures comprising (I) and other styrene polymers; (2) production of (I) by sequential anionic polymerization, where polymerization of at least the soft block is effected in the presence of a potassium salt.

公开(公告)号：DE19911960A1

公开(公告)日：2000-09-21

申请号：DE19911960

申请日：1999-03-17

Applicant: BASF AG

Inventor： OEPEN SABINE ,  SCHNEIDER MICHAEL ,  GAUSEPOHL HERMANN

IPC: C08F212/32 ,  C08F212/08

Abstract: A 1,2-diphenylethylene/styrene copolymer (I) is prepared by polymerization of (A) 1,2-diphenylethene, (B) styrene and optionally (C) copolymerizable monomers whereby (A) and a polymerization initiator are mixed and component (B) and optionally (C) are continuously dosed into the reaction mixture. A 1,2-diphenylethylene/styrene copolymer (I) is prepared by polymerization of: (A) 1-63wt.% 1,2-diphenylethene, optionally substituted by up to 5 1-12C alkyl groups on the aromatic rings; (B) 37-99 wt.% styrene, optionally substituted by up to 5 1-12C alkyl groups on the aromatic ring; and (C) 0-50 wt.% copolymerizable monomers. whereby (A) and a polymerization initiator are mixed and component (B) and optionally (C) are continuously dosed into the reaction mixture.

公开(公告)号：DE19836410A1

公开(公告)日：2000-02-17

申请号：DE19836410

申请日：1998-08-13

Applicant: BASF AG

Inventor： WUENSCH JOSEF RICHARD ,  KNOLL KONRAD ,  GAUSEPOHL HERMANN

IPC: C08F293/00 ,  C08K5/00 ,  C08L53/00 ,  C08L25/04 ,  C08L71/12

Abstract: Thermoplastic molding composition contains (A) 20-96 wt.% star polymer, obtained by polymerization of vinyl-aromatic monomers with a branched monomer, which contains NOTLESS 2 vinyl-aromatic functional groups, (B) 3-50 wt.% copolymer of vinyl-aromatic monomer, 1,1-diphenylethylene and optionally diene, (C) 1-15 wt.% polyarylene ether, (D) 0-5 wt.% nucleating agent, (E) 0-5 wt.% antioxidant, (F) 0-5 wt.% stabilizer and (G) 0-50 wt.% fibrous or particulate filler. Independent claims are also included for (a) the production of the composition by mixing the components at 270-320 degrees C; and (b) fibers, films and moldings based on the composition

公开(公告)号：AU2831899A

公开(公告)日：1999-09-06

申请号：AU2831899

申请日：1999-02-05

Applicant: BASF AG

Inventor： SCHADE CHRISTIAN ,  FISCHER WOLFGANG ,  GAUSEPOHL HERMANN ,  KNOLL KONRAD ,  WARZELHAN VOLKER ,  FONTANILLE MICHEL ,  DEFFIEUX ALAIN ,  DESBOIS PHILIPPE

IPC: C08F4/54 ,  C08F4/46 ,  C08F12/04 ,  C08F36/04 ,  C08F236/10 ,  C08F297/06

Abstract: In a process for the homopolymerization of vinylaromatic monomers or the copolymerization of vinylaromatic monomers and dienes in the presence of at least one alkali metal compound and at least one compound of an element of group 3a of the Periodic Table of the elements, the compounds contain, based on the sum of molar equivalents of alkali metal and elements of group 3a, in each casea) from 0.1 to 3.9 molar equivalents of oxygen, sulfur, nitrogen or phosphorus andb) from 0.1 to 3.9 molar equivalents of an organyl ligand.

公开(公告)号：AU2719199A

公开(公告)日：1999-08-23

申请号：AU2719199

申请日：1999-01-26

Applicant: BASF AG

Inventor： SCHADE CHRISTIAN ,  GAUSEPOHL HERMANN ,  FISCHER WOLFGANG ,  MOORS RAINER ,  WARZELHAN VOLKER

IPC: C08F4/42 ,  C08F279/02 ,  C08F287/00

Abstract: A process prepares impact-modified thermoplastic molding compositions which comprise a soft phase made from a rubber dispersed in a hard matrix composed of vinylaromatic monomers, where the hard matrix is prepared by anionic polymerization in the presence of a metal alkyl compound or a metal aryl compound of an element of the second or third main group, or of the second subgroup, of the Periodic Table.