公开(公告)号：DE2613352A1

公开(公告)日：1977-10-06

申请号：DE2613352

申请日：1976-03-29

Applicant: BASF AG

Inventor： WALTER MANFRED DIPL CHEM DR ,  STEIN DIETER DIPL CHEM DR ,  FAHRBACH GERHARD DIPL CHEM DR ,  JUNG RUDOLF H DIPL CHEM DR ,  ECHTE ADOLF DIPL CHEM DR

IPC: C08F291/00 ,  C08F279/02 ,  C08F291/02

Abstract: A process for the manufacture of high impact and translucent polystyrene, in which, in a first stage, styrene is prepolymerized in mass or in solution in the presence of a rubber, and the polymerization is then completed in mass, in solution or in aqueous suspension. The prepolymerization is taken to a stage where the amount of styrene converted is from 3 to 10 times the amount of the elastomer constituent of the rubber, and at this conversion the disperse soft-component phase formed should have a mean particle size of less than 1 mu m and should contain from 35 to 65% by weight of free or chemically bonded polystyrene segments. The translucent styrene polymers of high impact strength may be used for packaging purposes.

公开(公告)号：DE2401629A1

公开(公告)日：1975-07-24

申请号：DE2401629

申请日：1974-01-15

Applicant: BASF AG

Inventor： FAHRBACH GERHARD DIPL CHEM DR ,  SEILER ERHARD DIPL CHEM DR ,  GERBERDING KARL DIPL CHEM DR

IPC: C08F285/00 ,  C08F293/00 ,  C08F295/00 ,  C08F297/02

公开(公告)号：DE2610069A1

公开(公告)日：1977-09-22

申请号：DE2610069

申请日：1976-03-11

Applicant: BASF AG

Inventor： FAHRBACH GERHARD DIPL CHEM DR ,  GERBERDING KARL DIPL CHEM DR ,  SEILER ERHARD DIPL CHEM DR ,  STEIN DIETER DIPL CHEM DR

IPC: C08G81/02 ,  C08F297/04

公开(公告)号：DE2610068A1

公开(公告)日：1977-09-29

申请号：DE2610068

申请日：1976-03-11

Applicant: BASF AG

Inventor： FAHRBACH GERHARD DIPL CHEM DR ,  GERBERDING KARL DIPL CHEM DR ,  MITTNACHT HANS DIPL CHEM DR ,  SEILER ERHARD DIPL CHEM DR ,  STEIN DIETER DIPL CHEM DR

IPC: C08L25/06 ,  C08L53/02 ,  C08L25/00

公开(公告)号：DE2408487A1

公开(公告)日：1975-09-18

申请号：DE2408487

申请日：1974-02-22

Applicant: BASF AG

Inventor： SCHMIDT FRANZ DIPL CHEM DR ,  FAHRBACH GERHARD DIPL CHEM DR ,  SCHENK WOLFGANG DIPL CHEM DR ,  SEILER ERHARD

IPC: C08F293/00 ,  C08L23/00 ,  C08L51/00 ,  C08L51/02 ,  C08L53/00 ,  C08L59/00 ,  C08L59/02 ,  C08L71/00 ,  C08L71/02 ,  C08L77/00 ,  C08L101/00 ,  C08L61/02

Abstract: Impact-resistant thermoplastic molding compositions containing from 70 to 98 percent by weight of a polyoxymethylene and from 30 to 2 percent by weight of a block copolymer of the general formula A - B - A, wherein A is a polyalkylene oxide block and B is a diene polymer block.

公开(公告)号：DE2942128A1

公开(公告)日：1981-04-30

申请号：DE2942128

申请日：1979-10-18

Applicant: BASF AG

Inventor： DRUSCHKE WOLFGANG DIPL CHEM DR ,  FAHRBACH GERHARD DIPL CHEM DR ,  GROH WOLFGANG DIPL CHEM DR

IPC: C09J153/02 ,  C09J3/14 ,  C09J5/06

Abstract: Melt adhesive is a mixt. of (a) 100 pts. wt. of a non- hydrogenated, linear block copolymer with mol.wt. 30,000-300,000 of formula A-B-A, in which the terminal A blocks form 10-50 wt.% of the block copolymer, each have mol.wt. 5,000-50,000 and are non-elastomeric blocks of a monovinyl-aromatic monomer, and the block B is an elastomeric (co)polymer of butadiene and/or isoprene in ratio by wt. of 70:30-5:95; (b) 25-300 pts. wt. of a tackifying resin; (c) 5-200 pts.wt. of a rubber extending oil; and opt. (d) the usual additives. Compsn. is esp. used as a pressure-sensitive adhesive for self-bonding materials, e.g. films, labels, floor or wall coverings, and medicinal plasters.

公开(公告)号：DE2931736A1

公开(公告)日：1981-02-26

申请号：DE2931736

申请日：1979-08-04

Applicant: BASF AG

Inventor： GERBERDING KARL DIPL CHEM DR ,  FAHRBACH GERHARD DIPL CHEM DR ,  HOEVEMANN FRIEDRICH DIPL CHEM

IPC: C08G81/02 ,  C08F8/04 ,  C08F8/00 ,  C08F297/04

Abstract: The polymers (I) are products obtd. by hydrogenating a star- shaped copolymer (II) comprising 3 or 4 linear copolymer chains attached to a central unit X (e.g. Si or Ge). Each linear chain is a statistical copolymer of at least one 4-5C conjugated diene (III) and at least one monovinyl aromatic cpd. (IV). The improvement comprises grafting additional (III) onto the ends of (IV)-terminal chains prior to coupling with X, so that the chains are linked to X via (III). (I) are useful as VI improvers for lubricating oils. The improvement provides more complete coupling of the chains with X and reduces the hydrogenation time.

公开(公告)号：DE2748884A1

公开(公告)日：1979-05-03

申请号：DE2748884

申请日：1977-11-02

Applicant: BASF AG

Inventor： LADENBERGER VOLKER DIPL CHEM D ,  BRONSTERT KLAUS DIPL CHEM DR ,  FAHRBACH GERHARD DIPL CHEM DR ,  GROH WOLFGANG DIPL CHEM DR

IPC: C08C19/02 ,  C08F8/04

公开(公告)号：DE2456439A1

公开(公告)日：1976-08-12

申请号：DE2456439

申请日：1974-11-29

Applicant: BASF AG

Inventor： BARZYNSKI HELMUT DIPL CHEM DR ,  FAHRBACH GERHARD DIPL CHEM DR ,  WIGGER AUGUST DIPL CHEM DR ,  RICHTER PETER DIPL CHEM DR ,  SEILER ERHARD DIPL CHEM DR

IPC: G03F7/038 ,  B41N1/00 ,  G03F7/032 ,  G03F7/09 ,  G03F7/11 ,  G03F7/02

公开(公告)号：DE2420300A1

公开(公告)日：1975-12-11

申请号：DE2420300

申请日：1974-04-26

Applicant: BASF AG

Inventor： SCHMIDT FRANZ DIPL CHEM DR ,  FAHRBACH GERHARD DIPL CHEM DR ,  SCHENK WOLFGANG DIPL CHEM DR ,  SEILER ERHARD DIPL CHEM DR

IPC: C08L59/00 ,  C08L23/00 ,  C08L51/00 ,  C08L51/02 ,  C08L53/00 ,  C08L59/02 ,  C08L77/00 ,  C08L101/00

Abstract: Thermoplastic molding compositions based on polyoxymethylene and containing, to improve the impact resistance, a block copolymer of a diene polymer block B and at least one poly(alkylmethacrylate) block A.