Method for producing methacrylic polymer composition, and molded article
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United States of America Patent
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Dec 20, 2016
Grant Date -
Jun 30, 2016
app pub date -
Nov 29, 2013
filing date -
Dec 3, 2012
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Abstract
A method for producing a methacrylic polymer composition, which comprises
- a first polymerization step wherein a raw material composition A comprising a raw material monomer A containing no less than 50% by weight of methyl methacrylate, a polymerization initiator A, and a chain transfer agent A is supplied into a first complete mixing type reactor through a supply port of the reactor; anda second polymerization step wherein a raw material composition B comprising a raw material monomer B containing no less than 50% by weight of methyl methacrylate, a polymerization initiator B, and a chain transfer agent B, and the intermediate composition withdrawn in the first polymerization step are supplied into a second complete mixing type reactor through a supply port of the reactor.
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