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AssigneeMitsubishi Gas Chemical Company, Inc.
InventorsKazunobu Sato, Katsuya Maruyama
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The present invention relates to a multilayer injection molded article comprising a layer of a barrier resin composition including (A) 10 to 70% by mass of a polyamide resin including a diamine constitutional unit 70 mol % or more of which is derived from m-xylylenediamine and a dicarboxylic acid constitutional unit 70 mol % or more of which is derived from a dicarboxylic acid containing a C4 to C20 α,ω-linear aliphatic dicarboxylic acid and isophthalic acid at a molar ratio of from 30:70 to 100:0, (B) 90 to 30% by mass of a modified polyolefin, and the like; a multilayer injection molded article including a layer of a barrier resin composition including (A) 50 to 90% by mass of the above polyamide resin, (B) 2 to 45% by mass of the modified polyolefin and (D) 2 to 45% by mass of a m-xylylene group-free polyamide; and an injection molded article including (A) 10 to 60% by mass of the polyamide resin and (E) 40 to 90% by mass of a polyolefin wherein at least a part of the polyamide (A) is dispersed in a layered state. These molded articles are excellent in barrier property.
An injection molded article with a multilayer structure comprising at least one layer of a barrier resin composition comprising (A) 10 to 70% by mass of a polyamide resin comprising a diamine unit 70 mol % or more of which is one or more m-xylylenediamine units and a dicarboxylic acid unit 70 mol % or more of which is one or more dicarboxylic acid units containing a C4 to C20 α,ω-linear aliphatic dicarboxylic acid and isophthalic acid at a molar ratio of from 30:70 to 100:0;
An injection molded article with a multilayer structure comprising at least one layer of a barrier resin composition comprising (A) 50 to 90% by mass of a polyamide resin comprising a diamine unit 70 mol % or more of which is one or more m-xylylenediamine units and a dicarboxylic acid unit 70 mol % or more of which is one or more a dicarboxylic acid units containing a C4 to C20 α,ω-linear aliphatic dicarboxylic acid and isophthalic acid at a molar ratio of from 30:70 to 100:0;
An injection molded article comprising (A) 10 to 60% by mass of a polyamide resin comprising a diamine unit 70 mol % or more of which is one or more m-xylylenediamine units and a dicarboxylic acid unit 70 mol % or more of which is one or more dicarboxylic acid units containing a C4 to C20 α,ω-linear aliphatic dicarboxylic acid and isophthalic acid at a molar ratio of from 30:70 to 100:0;
Dependencies are inferred from the claim text.