Thermoplastic moulding composition comprising a polymer blend ba

Details Thermoplastic moulding composition comprising a polymer blend ba Thermoplastic moulding composition comprising a polymer blend ba

1992-11-12

1993-08-03

Buttner, David J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 71, 525133, 525148, C08L 3312, C08L 6900, C08L 5100

Patent

active

052329860

ABSTRACT:
The invention relates to polymer blends, which can be processed like a thermoplastic, whose bulk A) (50 to 90 wt. %) is polymethylmethacrylate or a polymethacrylate resin; and which also contain 5 to 40 wt. % of, as component B), a tough polymer, in particular an ABS polymerizate; and contain 5 to 40 wt. % of, as component C), a polycarbonate or a polyester carbonate. By adding component C), the heat resistance, impact strength and notched impact strength are improved in the known polymethacrylate/ABS blends. With the addition of an impact modifying component D), contained in quantities of 0 to 20 wt. % in the polymer blend, the impact strength and notched impact strength can be further raised. Preferably, recycled polymers can be added as the polymeric mix components.

REFERENCES:
patent: 4440905 (1984-04-01), Dunkelberger
patent: 4677162 (1987-01-01), Grigo et al.
WPI, File Supplier, AN=74-85000V, Derwent Publications Ltd, London, GB; Abstract of JP-A-49 041 441 (Teijin Chems. Ltd) Apr. 18, 1974.

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