Flexible polyamide
AssigneeUnitika Ltd.
InventorsMakoto Nakai, Yuki Takubo, Yusuke Yagi
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Abstract
A flexible polyamide including a unit formed from an aliphatic dicarboxylic acid (A1) having 18 or more carbon atoms and/or a unit formed from an aliphatic diamine (B1) having 18 or more carbon atoms, wherein the polyamide has a total content of 10 to 90% by mass of the unit formed from (A1) and the unit formed from (B1) and has a melting point of 240° C. or higher.
Claims8
A flexible polyamide comprising a unit formed from an aliphatic dicarboxylic acid (A1) having 18 or more carbon atoms, a unit formed from an aliphatic diamine (B1) having 18 or more carbon atoms, a unit formed from a dicarboxylic acid (A2) having 12 or less carbon atoms, and a unit formed from a diamine (B2) having 8 to 12 carbon atoms,
- wherein the polyamide has a total content of 10 to 90% by mass of the unit formed from the aliphatic dicarboxylic acid (A1) having 18 or more carbon atoms and the unit formed from the aliphatic diamine (B1) having 18 or more carbon atoms, and
- wherein the polyamide has a melting point of 300° C. or higher,
- wherein the aliphatic diamine (B1) having 18 or more carbon atoms comprises dimer diamine, and
- wherein the dicarboxylic acid (A2) having 12 or less carbon atoms comprises aromatic dicarboxylic acid.
Dependencies are inferred from the claim text.