Process for preparing an impact resistant resin

Details Process for preparing an impact resistant resin Process for preparing an impact resistant resin

1993-06-07

1994-03-29

Jagannathan, Vasu S.

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

Synthetic resins

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

525265, 525292, 525310, 525315, 525316, 526172, 528489, 528490, C08F 440, C08F27902

Patent

active

052985636

ABSTRACT:
A process for preparing an impact resistant resin, which comprises a step of graft copolymerizing a monomer mixture comprising an aromatic vinyl monomer and a monomer copolymerizable therewith, to a butadiene rubber-like polymeric latex in the presence of a redox polymerization initiator; a step of coagulating the resulting graft copolymer latex by mixing an antioxidant thereto and adding an alkaline earth metal salt thereto; and a step of washing the coagulated product by a washing water having the pH adjusted to a level of at most 7.

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