公开(公告)号：DE1949487A1

公开(公告)日：1971-04-08

申请号：DE1949487

申请日：1969-10-01

Applicant: BASF AG

Inventor： STEIN DIETER DR ,  BRONSTERT KLAUS DR ,  SCHWAAB JOSEF DR ,  MITTNACHT HANS DR

IPC: C08F279/04 ,  C08L25/12 ,  C08L35/06 ,  C08L55/02 ,  C08F37/00

公开(公告)号：DE4006643A1

公开(公告)日：1991-09-05

申请号：DE4006643

申请日：1990-03-03

Applicant: BASF AG

Inventor： SEITZ FRIEDRICH DR ,  RUPPMICH KARL ,  SCHWAAB JOSEF DR

IPC: C08F265/06 ,  C08F265/00 ,  C08F265/04 ,  C08F291/08 ,  C08L25/12 ,  C08L51/00 ,  C08L51/06 ,  C08L101/00

Abstract: A particulate graft polymer comprises from 30 to 90% by weight, of at least one elastomeric polymer A having a median particle size of from 30 to 1000 nm comprising-based on A-from 85 to 99.8% by weight of at least one alkyl acrylate A1 having from 1 to 8 carbon atoms in the alkyl moiety, from 0.1 to 5% by weight of at least one polyfunctional, crosslinking monomer A2 and from 0.1 to 10% by weight of at least one further monoethylenically unsaturated monomer as grafting base, and from 10 to 70% by weight, grafted onto the elastomeric polymer A, of a sheath B comprising-based on B-from 50 to 90% by weight of at least one aromatic vinyl monomer B1 and from 10 to 50% by weight of at least one polar, copolymerizable, ethylenically unsaturated monomer B2, wherein monomer A3 is a hydroxyalkyl acrylate or methacrylate.

公开(公告)号：DE3561736D1

公开(公告)日：1988-04-07

申请号：DE3561736

申请日：1985-04-01

Applicant: BASF AG

Inventor： MITULLA KONRAD DR ,  HAMBRECHT JUERGEN DR ,  ECHTE ADOLF DR ,  SWOBODA JOHANN DR ,  SIEBEL PETER DR ,  SCHWAAB JOSEF DR ,  FRANK HERBERT

IPC: C08L51/00 ,  C08L51/04 ,  C08L69/00

Abstract: A thermoplastic molding material consists of a polycarbonate A and a graft copolymer B, the latter consisting of an elastomer (rubber) (b1) and a shell (b2) grafted onto the elastomer. The elastomer (b1) contains, as copolymerized units, from 35 to 100% by weight of a diene from the group consisting of the conjugated dienes of 4 to 5 carbon atoms, and can contain, as copolymerized units, from 0 to 65% by weight of a monomer from the group consisting of the alkyl acrylates or alkyl methacrylates, where alkyl is of 1 to 8 carbon atoms. The shell (b2) is obtained in a conventional manner by successive polymerization of the monomers constituting the shell, in two process steps, in the presence of the elastomer (b1); in a first process step, from 10 to 90% by weight of a mixture of a vinylaromatic hydrocarbon and one or more ethylenically unsaturated monomers which differ from the said hydrocarbon, in a weight ratio of from 90:10 to 60:40, are first incorporated as copolymerized units, followed by the polymerization of from 90 to 10% by weight of a monomer from the group consisting of the alkyl acrylates or of the alkyl methacrylates, where alkyl is of 1 to 8 carbon atoms. The molding material is used for the production of shaped articles.

公开(公告)号：DE3561464D1

公开(公告)日：1988-02-25

申请号：DE3561464

申请日：1985-04-01

Applicant: BASF AG

Inventor： MITULLA KONRAD DR ,  HAMBRECHT JUERGEN DR ,  ECHTE ALDOLF DR ,  SWOBODA JOHANN DR ,  SIEBEL PETER DR ,  SCHWAAB JOSEF DR ,  FRANK HERBERT

IPC: C08L51/00 ,  C08L69/00

Abstract: A thermoplastic molding material consists of from 10 to 90 parts by weight of a polycarbonate A and from 90 to 10 parts by weight of a graft copolymer B having a mean particle size of from 200 to 700 nm (d50 value of the integral mass distribution). The graft polymer B is formed from an elastomer (rubber) (b1), which accounts for from 10 to 80% by weight, and a grafted shell (b2), which accounts for from 90 to 20% by weight, the percentages in each case being based on (B). The elastomer (b1) is composed of from 50 to 99.9% by weight of an alkyl acrylate, where alkyl is of 1 to 8 carbon atoms, and from 0.1 to 5% by weight of a copolymerizable polyfunctional crosslinking monomer. The grafted shell (b2) is produced in three stages and contains, as graft monomers, (b2a1) from 5 to 40% by weight of a monoethylenically unsaturated aromatic hydrocarbon of not more than 12 carbon atoms, in the first stage, (b2a2) from 15 to 50% by weight of a mixture of a monoethylenically unsaturated aromatic hydrocarbon of not more than 12 carbon atoms and a copolymerizable ethylenically unsaturated monomer, in a weight ratio of from 90:10 to 60:40, in the second stage, and (b2a3) from 10 to 85% by weight of an alkyl (meth)acrylate in the third stage, the percentages in each case being based on (b2).

公开(公告)号：DE3273793D1

公开(公告)日：1986-11-20

申请号：DE3273793

申请日：1982-07-15

Applicant: BASF AG

Inventor： BRANDSTETTER FRANZ DR ,  HAMBRECHT JUERGEN DR ,  STEPHAN RUDOLF DR ,  OVERHOFF HEINZ-JUERGEN DR ,  SCHWAAB JOSEF DR ,  BERNHARD CLAUS DR ,  SWOBODA JOHANN DR ,  ECHTE ADOLF DR

IPC: C08L25/12 ,  C08L51/00

Abstract: Thermoplastic molding materials contain a copolymer A and a graft copolymer B. The copolymer A is a hard component comprising one or more copolymers of styrene and/or alpha -methylstyrene with from 20 to 40% by weight of acrylonitrile. The graft copolymer B comprises one or more crosslinked acrylate polymer with a mean particle size of 0.5-0.8 mu m (d50 value of the cumulative mass distribution), a particle distribution, expressed by the ratio in the range Q>/=0.6, and a glass transition temperature Tg below 0 DEG C. A mixture of styrene and acrylonitrile in a weight ratio from 88:12 to 65:35 is grafted onto this rubber.