| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain an adhesive for a polyamide/polyester multilayer composite material and a compatibilizer for a polymer blend by using a block polyester- amide having a polyamide block and an aromatic polyester block and forming two crystal phases as the base. SOLUTION: This invention provides an adhesive and a compatibilizer based on a partially crystallized high-molecular-weight block (co)polyester-amide, wherein the block (co)polyester amide forms two crystal phases and has, as a segment, at least one (co)polyamide block having a uniform number-average molar mass of 1,000g/mol or above and at least one aromatic (co)polyester block having a uniform number-average molar mass of 1,000g/mol and contains at least one diol component represented by the formula: HO-R-OH (wherein R is an aliphatic or partially aromatic (co)polyester, an aliphatic polyether, an aliphatic (co)polyester-amide, a polycarbonate, an aliphatic or aromatic hydrocarbon group).</p> |
