公开(公告)号：CA1175984A

公开(公告)日：1984-10-09

申请号：CA393275

申请日：1981-12-29

Applicant: BASF AG

Inventor： BRANDSTETTER FRANZ ,  ECHTE ADOLF ,  HAAF FRANZ ,  HAMBRECHT JUERGEN ,  NAARMANN HERBERT

IPC: C08L51/00 ,  C08L33/00 ,  C08L33/02 ,  C08L51/02 ,  C08L51/04 ,  C08L51/06 ,  C08L71/00 ,  C08L71/12 ,  C08L71/04

Abstract: A thermoplastic molding material based on an impactresistant styrene polymer and on a polyphenylene ether, wherein the impact-resistant styrene polymer contains, as soft component, a graft copolymer of styrene to a copolymer of an alkyl acrylate, where alkyl is of 4 to 8 carbon atoms, and 0.5 to 10% by weight, based on total monomers, of a copolymerizable polyfunctional monomer, the soft component having a mean particle diameter of from 0.3 to 1.0 .mu.m. The novel molding materials possess improved flow and give moldings having improved aging resistance.

公开(公告)号：CA1171582A

公开(公告)日：1984-07-24

申请号：CA394074

申请日：1982-01-13

Applicant: BASF AG

Inventor： BRANDSTETTER FRANZ ,  HAMBRECHT JUERGEN ,  ECHTE ADOLF

IPC: C08L25/00 ,  C08L25/04 ,  C08L33/00 ,  C08L33/02 ,  C08L51/00 ,  C08L51/02 ,  C08L51/04 ,  C08L51/06 ,  C08L71/00 ,  C08L71/12 ,  C08L71/04

Abstract: O.Z. 0050/034,891 The use of tricyclodecenyl alcohol in place of other crosslinking agents for crosslinking the soft component of impact-resistant polystyrene based on a polystyrene-grafted poly(alkyl acrylate) improves the flow of mixtures of the said polystyrene with polyphenylene ethers.

公开(公告)号：CA1170799A

公开(公告)日：1984-07-10

申请号：CA380031

申请日：1981-06-17

Applicant: BASF AG

Inventor： ECHTE ADOLF ,  GAUSEPOHL HERMANN ,  HOFMANN HERMANN P ,  MITTNACHT HANS

IPC: C08F2/38 ,  C08F4/00 ,  C08F212/06 ,  C08F279/02 ,  C08L7/00 ,  C08F279/00 ,  C08F281/00 ,  C08L25/00 ,  C08L45/00 ,  C08L47/00 ,  C08L53/00 ,  C08L25/02 ,  C08L51/06

Abstract: O.Z. 0050/034517 A process, carried out without a diluent or in solution, in more than 2 reaction zones, for the continuous preparation of rubber-modified polymers of vinylaromatics, wherein a monomeric aromatic vinyl compound and an elastomeric polymer, in an amount of from 3 to 16% by weight based on the monomer, are polymerized, in the absence of a free radical initiator, but in the presence of a mercaptan as a chain transfer agent, at from 80 to 180.degree.C in a first reaction zone, with stirring, up to a maximum monomer conversion, Umax, given by the equation Umax = K - 1 where K is the amount of rubber in % by weight based on monomer, and, in a second reaction zone, polymerization is continued, with stirring, to a conversion of up to about 50% by weight, after which a chain transfer agent is introduced in an amount of from 0.01 to 0.2% by weight, based on vinyl-aromatic monomer, and polymerization is continued, if appropriate in more than one reaction zone, up to a monomer conversion of less than 85% by weight. The polymer is treated in a devolatilization zone to remove vinyl-aromatic monomer and solvent, if any, and these constituents are recycled to the process. The process claimed makes it possible to prepare products which exhibit good gloss coupled with good mechanical properties, and which can be employed for conventional applications.

公开(公告)号：AU532316B2

公开(公告)日：1983-09-22

申请号：AU6452680

申请日：1980-11-19

Applicant: BASF AG

Inventor： ECHTE ADOLF ,  GAUSEPOHL HERMANN ,  JENNE HELMUT ,  MITTNACHT HANS

IPC: C08F212/06 ,  C08F255/06 ,  C08F279/02 ,  C08F279/06

Abstract: Thermoplastic molding materials which contain a copolymer which has been made impact-resistant with a rubber. The copolymer is produced by polymerizing a mixture of a monovinyl-aromatic compound and an acrylic acid derivative or methacrylic acid derivative in the presence of a rubber. The folding materials contain a specific proportion of soft component. The diameter of the particles of the soft component, and the swelling index of the soft component, lie within a specific range, and the tensile strength of the molding material is higher than the yield strength.