公开(公告)号：DE3209624A1

公开(公告)日：1983-09-22

申请号：DE3209624

申请日：1982-03-17

Applicant: BASF AG

Inventor： POHRT JUERGEN ,  MATERN RUEDIGER ,  JENNE HELMUT DR ,  GAUSEPOHL HERMANN DR ,  GERBERDING KARL DR

IPC: C08L53/02 ,  C08L51/04

Abstract: A thermoplastic molding material comprises copolymers I and II. Copolymer I is a high-impact (graft) copolymer which is derived from a monovinyl-aromatic monomer and a polymer or copolymer predominantly containing polymerized 1,3-diene units, and is present in a proportion of 0.1-1.0% by weight, based on the molding material. Copolymer II is a block copolymer with star-shaped branching, ie. a radial block copolymer, having an average of more than two branches per molecule. It is substantially derived from 55-80% by weight of a monovinyl-aromatic monomer and 20-45% by weight of a 1,3-diene monomer. The molding material may contain conventional assistants and is used for the production of blown film.

公开(公告)号：DE3106959A1

公开(公告)日：1982-09-09

申请号：DE3106959

申请日：1981-02-25

Applicant: BASF AG

Inventor： GERBERDING KARL DR ,  LADENBERGER VOLKER DR ,  MUELLER WOLFGANG F DR ,  SCHMITT BURGHARD DR ,  VOGEL HANS-HENNING

IPC: C08F4/48 ,  C08F212/08 ,  C10M143/12 ,  C08F236/10 ,  C10M1/18 ,  C10M3/12

Abstract: A process for the preparation of copolymers by polymerising from 52 to 54% by weight of styrene and 48 to 46% by weight of butadiene with alkyllithium initiators in the presence of tetrahydrofuran, where certain maximum temperatures are not exceeded, and subsequently hydrogenating the copolymer, and the use of the hydrogenated copolymers as viscosity index improvers for lubricant oils.

公开(公告)号：DE2550227A1

公开(公告)日：1977-05-18

申请号：DE2550227

申请日：1975-11-08

Applicant: BASF AG

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

IPC: C08F2/00 ,  C08F2/38 ,  C08F8/00 ,  C08F8/04 ,  C08F297/00 ,  C08F297/02 ,  C08F297/04 ,  C08G81/02

公开(公告)号：DE2300974A1

公开(公告)日：1974-07-11

申请号：DE2300974

申请日：1973-01-10

Applicant: BASF AG

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

IPC: C07F1/04 ,  C07F1/00 ,  C07F1/06

Abstract: Production of organometallic compounds of sodium and potassium with alkylaromatic hydrocarbons (X) by reaction of the metal with a monochloride of a hydrocarbon (Y) and reaction of the organometallic compound formed with the alkylaromatic hydrocarbon (X). A fine dispersion of the metal in the alkylaromatic hydrocarbon (X) is first prepared by stirring a mixture of molten metal and hydrocarbon (X) in the presence of a dispersing agent; then the monochloride of the hydrocarbon (Y) is slowly added. The sodium or potassium compounds may be used for organometallic reactions or as monofunctional polymerization catalysts.