Melt kneading polycarbonate with compound containing carbon to carbon double bond
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United States of America Patent
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Feb 15, 1994
Grant Date -
N/A
app pub date -
Sep 18, 1992
filing date -
Nov 25, 1991
priority date (Note) -
Expired
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Abstract
The present invention discloses a polycarbonate modification method wherein a polycarbonate resin having (a) a carbon-carbon double bond, and (b) at least one group selected from the group consisting of --C(.dbd.O)--Cl, --C(.dbd.O)--Br, --C(.dbd.O)--OH, --OH, --O--C(.dbd.O)--Cl and --O--C(.dbd.O)--Br, is melt-kneaded in the presence of a radical initiator. Polycarbonate resins prepared according to the present method retain the desirable properties associated with polycarbonates while exhibiting decreased surface gloss.
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