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The manufacturing plant produces a plastic resin (m-xylylene
adipamide) which is a semi-crystalline polymer derived from
the polycondensation of m-xylylene diamine (MXDA)
and adipic acid. The polymerization technology of this
resin has been licensed to MAP by Mitsubishi Gas Chemical
Company (MGC). MGC pioneered the sophisticated technology
behind the process that separated high purity m-xylene
and manufactured MXDA used as the
backbone of this unique polymer. MGC has a long history
in the development
of a protected MX-Nylon process and patented MX-Nylon grades.
1940 -- Wallace
Hume Carothers of the DuPont Company prepares a nylon using
the para-isomer of xylylene diamine (three isomers of xylylene
diamine are possible – ortho, para and meta).
1956 -- F. G.
Lum of the California Research Corporation publishes that
Nylon-MXD6 is a semi-crystalline polymer. Research, however,
was limited to the laboratory because the meta-isomer
of xylylene diamine was not a commercial product although
mixtures of p-xylylene diamine (PXDA) and MXDA were
available.
1968 -- m-xylene,
which was essentially free of p-xylene, becomes
available when MGC develops a patented commercial process.
1971 -- Production
of MXDA started by MGC.
1984 -- MGC
commences production of MX-Nylon (N-MXD6) in Niigata Factory.
1984 to 2003 --
MGC continues to expand production facilities in Japan and
extend facilities to the United States in order to directly
support customers and meet increasing market demand.
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| Batch
Identification |
Batches
have unique identification that provides full traceability
from the customer to the raw material supplier.
The batch format provides the following information:
S40430-21

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S |
indicates
the batch was polymerized using the
solid phase process |
|
1st
digit |
Year
the batch was produced |
|
2nd
and 3rd digits |
Month
the batch was produced |
|
4th
and
5th digits |
Day
the batch was produced |
|
6th
digit |
Vessel
number (usually 1, 2 or 3) |
|
7th
digit |
Sequential
batch number for the production
day |
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