Graft copolymer and process for producing the same

Details Graft copolymer and process for producing the same Graft copolymer and process for producing the same

1991-12-06

1993-10-05

Foelak, Morton

Stone working

Turning

Grinding-wheel dressing

525267, 525241, 525245, 525249, 525235, 525242, 525254, 525255, 525259, 526335, 526336, 526340, 5263403, 526346, 526347, C08F 400

Patent

active

052506290

ABSTRACT:
There is provided a process for producing a styrenic graft copolymer which comprises coplymerizing a styrenic monomer and a styrenic monomer having a hydrocarbon radical with an unsaturated bond in the presence of a catalyst comprising as primary ingredient (A) a transition metal compound and (B) a contact product of an organoaluminum compound and a condensation agent or (C) a compound which produces an ionic complex by reacting with the above-mentioned transition metal compound and subsequently graft polymerizing an ethylenically unsaturated monomer onto the resultant styrenic copolymer.
The above-described styrenic graft copolymer is greatly improved in terms of compatibility, adhesivity, coatability and wettability while preserving heat resistance and chemical resistance thereof, and thus effective as a variety of constructional materials and compatibilizing agents. Furthermore, the composition or multi-layer material comprising the above-mentioned styrenic graft copolymer is widely utilized in a variety of application field including film, sheet, especially stampable sheet, container, packaging material, automobile parts, electrical and electronic parts, etc.

REFERENCES:
patent: 4414283 (1983-11-01), Tobias
patent: 5037890 (1991-08-01), Yokoyama et al.

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