MOLDED ARTICLE HAVING EXCELLENT FUEL BARRIER PROPERTIES
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United States of America Patent
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Issued Date -
Sep 26, 2013
app pub date -
Nov 29, 2011
filing date -
Nov 30, 2010
priority date (Note) -
Abandoned
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Abstract
The molded article includes a resin composition with a single shaft extruder, in which the resin composition is generated by melting and mixing a raw mixture, the raw mixture being obtained by blending 40-90 parts by mass of the polyolefin (A), 3-30 parts by mass of the metaxylylene group-containing polyamide (B), and 3-50 parts by mass of the modified polyolefin (C). In the single shaft extruder, the ratio of the length of the feeding part to the screw effective length is 0.40-0.55, the ratio of the length of the compressing part to the screw effective length is 0.10-0.30, the ratio of the length of the measuring part to the screw effective length is 0.10-0.40, the upper limit of the temperature of the feeding part falls within the range of +20° C. from the melting point of the metaxylylene group-containing polyamide or less, and the temperatures of the compressing part and the measuring part fall within the range of −30° C. to +20° C. from the melting point of the metaxylylene group-containing polyamide, and the shear rate is 14/second or more.
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