Process for preparing an impact resistant resin
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United States of America Patent
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Mar 29, 1994
Issued Date -
N/A
app pub date -
Jun 7, 1993
filing date -
Nov 13, 1989
priority date (Note) -
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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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