Compatibilized ABS polycarbonate molding

Details Compatibilized ABS polycarbonate molding Compatibilized ABS polycarbonate molding

1998-04-24

1999-06-08

Warzel, Mark L.

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, 525 73, 525 74, 525 78, 525 80, 525 84, C08L 5100

Patent

active

059105380

ABSTRACT:
A thermoplastic molding composition containing a blend of polycarbonate, vinyl copolymer, such as SAN, and a graft polymer, such as ABS is disclosed. The invention resides in the finding that the incorporation of a compatibilizing agent which comprises a polymeric resin having a number average molecular weight of at least about 21,000 and which is miscible with the grafted phase of the graft polymer and which contains secondary amine reactive groups in its structure yields stable compositions having improved mechanical properties especially at low temperatures.

REFERENCES:
patent: 4713415 (1987-12-01), Lavengood et al.
patent: 5420181 (1995-05-01), Eichenauer et al.
patent: 5672645 (1997-09-01), Eckel et al.
patent: 5674924 (1997-10-01), Lee et al.

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