Flow improvement in the processing of PVC blends to be modified

Details Flow improvement in the processing of PVC blends to be modified Flow improvement in the processing of PVC blends to be modified

1991-07-31

1993-02-09

Seidleck, James J.

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

Synthetic resins

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

525221, 525 80, 525239, 2643281, C08L 3310, C08L 3312, C08L 2706, C08L 2502

Patent

active

051854040

ABSTRACT:
This invention relates to the flow improvement of compositions containing PVC to be modified for impact resistance, such as PVC-ABS polymer blends, during their processing, for example during injection molding, in processing machines by polymers based on alkyl methacrylate that are made up of at least 50 wt. % methyl methacrylate and with 2 to 50 wt. % C.sub.2-8 -alkyl methacrylates as monomers, with molecular weights Mw in the range of 2,000 to .ltoreq.20,000 g/mol.

REFERENCES:
patent: 3983186 (1976-09-01), Eilers et al.
patent: 4413092 (1983-11-01), Witschard
patent: 4440905 (1984-04-01), Dunkelberger

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