公开(公告)号：EP2147049A1

公开(公告)日：2010-01-27

申请号：EP08736472.5

申请日：2008-04-23

Applicant: BASF SE

Inventor： WEBER, Martin ,  DATKO, Achim ,  LEBER, Ludger

IPC: C08L33/12 ,  C08L25/12 ,  C08L51/00 ,  C08L33/08

CPC classification number: C08L51/04 ,  C08F257/02 ,  C08F279/02 ,  C08F285/00 ,  C08L25/12 ,  C08L33/08 ,  C08L33/12 ,  C08L35/06 ,  C08L51/00 ,  C08L51/003 ,  C08L2205/03 ,  C08L2666/02 ,  C08L2666/04

Abstract: The present invention relates to thermoplastic molding compounds containing a mixture of the following: A) at least one methyl methacrylate polymer; B) at least one copolymer, obtainable by the polymerization of a mixture consisting of (B1) at least one vinyl aromatic monomer and (B2) at least one vinyl cyanide as monomers; C) at least one graft copolymer, obtainable from a core and a first graft shell and a second graft shell; D) at least one poly(butyl acrylate) with a molecular weight of 1700 to 4000 g/mol (determined as the MW by gel permeation chromatography); and E) optionally, conventional additives as component (E); a method for the production of these thermoplastic molding compounds, the use of these thermoplastic molding compounds for the production of molded objects, and the use of styrene-methyl methacrylate copolymers with a molecular weight of 1700 to 4000 g/mol (determined as the MW by gel permeation chromatography) for improving the flowability and reducing the dependence of the impact strength and the haze value of thermoplastic molding compounds on injection conditions.

公开(公告)号：EP2553018A1

公开(公告)日：2013-02-06

申请号：EP11709734.5

申请日：2011-03-23

Applicant: BASF SE

Inventor： MÜLLER, Matthias ,  LEBER, Ludger ,  DATKO, Achim ,  BRAUN, Leonie Felicitas ,  LEMAIRE, Christian ,  CHAROENSIRISOMBOON, Piyada ,  PEPERS, Michel

IPC: C08L33/12 ,  C08L25/12 ,  C08L51/04

CPC classification number: C08L51/04 ,  C08L25/12 ,  C08L33/12 ,  C08L2205/03 ,  C08L2666/04 ,  C08L2666/06

Abstract: The present invention relates to thermoplastic molding compositions comprising a mixture of (a) 10 to 50% by weight, based on the sum of components (A), (B) and (C), of a methyl methacrylate polymer as component (A) and (b) 20 to 60% by weight, based on the sum of the components (A), (B) and (C), of a copolymer as component (B), obtainable by polymerizing a vinylaromatic monomer and a vinyl cyanide, and 20 to 70% by weight, based on the sum of components (A), (B) and (C), of graft copolymer as component (C), obtainable from (c1) 50 to 70% by weight, based on (C), of a core as component (C1), obtainable by polymerizing a 1,3-diene and a vinylaromatic monomer and an agglomeration polymer and (c2) 15 to 25% by weight, based on (C), of a first graft shell as component (C2), obtainable by polymerizing a vinylaromatic monomer, a C
1 -C
8 -alkyl ester of methacrylic acid and/or a C
1 -C
8 -alkyl ester of acrylic acid and a crosslinking monomer and (c3) 15 to 25% by weight, based on (C), of a second graft shell as component (C3), obtainable by polymerizing a C
1 -C
8 -alkyl ester of methacrylic acid as component (C31) and a further monomer as component (C32), it being essential to the invention that component (C32) is a vinylaromatic monomer and graft copolymer (C) is prepared by emulsion polymerization and isolated from the reaction mixture by shear precipitation, and to processes for producing these molding compositions, to the use thereof and to the moldings obtainable thereby.

公开(公告)号：EP1436348B1

公开(公告)日：2010-09-08

申请号：EP02801301.9

申请日：2002-10-01

Applicant: BASF SE

Inventor： DATKO, Achim ,  HAHN, Klaus ,  LEHNEN, Uwe-Johannes ,  ZÖLLNER, Knut

IPC: C08J9/20 ,  C08J9/00 ,  C08L25/06

CPC classification number: C08J9/20 ,  C08J9/0066 ,  C08J2325/04

Abstract: The invention relates to a method for the production of styrene polymers by polymerization of styrene in the presence of graphite particles and several peroxides which decompose at various temperatures, whereby one thereof has a half-life value of 1 hour at 50 up to less than 70 °C.

公开(公告)号：EP2147049B1

公开(公告)日：2011-11-23

申请号：EP08736472.5

申请日：2008-04-23

Applicant: BASF SE

Inventor： WEBER, Martin ,  DATKO, Achim ,  LEBER, Ludger

IPC: C08L33/12 ,  C08L25/12 ,  C08L51/00 ,  C08L33/08

CPC classification number: C08L51/04 ,  C08F257/02 ,  C08F279/02 ,  C08F285/00 ,  C08L25/12 ,  C08L33/08 ,  C08L33/12 ,  C08L35/06 ,  C08L51/00 ,  C08L51/003 ,  C08L2205/03 ,  C08L2666/02 ,  C08L2666/04

Abstract: The present invention relates to thermoplastic molding compounds containing a mixture of the following: A) at least one methyl methacrylate polymer; B) at least one copolymer, obtainable by the polymerization of a mixture consisting of (B1) at least one vinyl aromatic monomer and (B2) at least one vinyl cyanide as monomers; C) at least one graft copolymer, obtainable from a core and a first graft shell and a second graft shell; D) at least one poly(butyl acrylate) with a molecular weight of 1700 to 4000 g/mol (determined as the MW by gel permeation chromatography); and E) optionally, conventional additives as component (E); a method for the production of these thermoplastic molding compounds, the use of these thermoplastic molding compounds for the production of molded objects, and the use of styrene-methyl methacrylate copolymers with a molecular weight of 1700 to 4000 g/mol (determined as the MW by gel permeation chromatography) for improving the flowability and reducing the dependence of the impact strength and the haze value of thermoplastic molding compounds on injection conditions.

公开(公告)号：EP1432757B1

公开(公告)日：2011-01-19

申请号：EP02779305.8

申请日：2002-09-05

Applicant: BASF SE

Inventor： DATKO, Achim ,  HAHN, Klaus ,  LARBIG, Harald ,  BATSCHEIDER, Karl-Heinz

IPC: C08J9/20 ,  C08J9/00 ,  C08L25/06

CPC classification number: C08J9/0061 ,  C08J9/20 ,  C08J2203/14 ,  C08J2325/06 ,  C08J2491/00 ,  C08K5/01 ,  C08L25/06

Abstract: The invention relates to a method for the production of bead-shaped expanded polystyrene by suspension polymerisation of styrol in the presence of 1 to 5 wt. % of a hydrocarbon with 4 to 6 C atoms and 0.5 to 3.5 wt. % of a saturated aliphatic hydrocarbon with a boiling point above 70°C, but in the absence of a chain initiator, giving rise to a reduction in the molecular weight of the polystyrene.

公开(公告)号：EP1758951B1

公开(公告)日：2010-05-19

申请号：EP05753572.6

申请日：2005-06-09

Applicant: BASF SE

Inventor： DATKO, Achim ,  HAHN, Klaus ,  ALLMENDINGER, Markus

IPC: C08J9/00 ,  C08J9/20

CPC classification number: C08J9/0014 ,  C08J9/0066 ,  C08J9/20 ,  C08J2203/14 ,  C08J2325/06

Abstract: The invention relates to styrene polymer particle foam materials having a density of less than 25 g/l, which have a thermal conductivity μ, determined at 10 °C according to DIN 52612, under 32 mW/m*K, and to methods for the production thereof.