Abstract:
PRODUCTION OF POLYMERS OF CYCLOPENTENE IN SOLVENT SOLU TION BY THE ADDITION OF CATALYST COMPONENTS COMPRISING TUNGSTEN HEXACHLORIDE, CYCLOPENTENE-HYDROPEROXIDE AND ALUMINUM ALKYL OR ALUMINUM AKYL HALIDE, SAID ALUMINUM ALKYL OR ALUMINUM ALKYL HALIDE BEING ADDED AFTER THE ADDITIONS OFF TUNGSTEN HEXACHLORIDE AND CYCLOPENTENE-2HYDROPEROXIDE AND FOLLOWING A CHANGE IN SOLVENT SOLUTION COLOR.
Abstract:
PROCESS FOR PRODUCING GRAFT COPOLYMERS FROM STYRENE, SUBSTITUTED STYRENES AND METHYL METHACRYLATE AND FROM ACRYLONITRILE, METHACRYLONITRILE, METHACRYLATES OR MIXTURES THEREOF BY POLYMERISATION IN THE PRESENCE OF AN AZOACYL COMPOUND AS CATALYST.
Abstract:
Thermoplastic-elastic moulding compositions from 5 to 50 percent by weight of a polypentenamer as a grafting base and from 95 to 50 parts by weight of a vinyl or vinylidene compound and a process for producing these compositions by graft polymerizing the vinyl or vinylidene compound in the presence of the polypentenamer e.g. in emulsified form.
Abstract:
CYCLOOLEFINS ARE POLYMERISED WITH A CATALYST COMPRISING AN ORGANIC OF A METAL OF GROUPS IV TO VI OF THE PERIODIC TABEL, A FRIEDEL-CRAFTS CATALYST AND OPTIONALLY AN OXYGEN COMPOUND.