| 摘要 |
<p>The invention provides compositions and methods of manufacture of polytrimethylene naphthalate (PTN) made with reduced presence of acrolein by transesterifying naphthalene dicarboxylic acid dimethyl ester (NDC) with propylene glycol or 1,3 propane diol (PDO) in the presence of catalysts and one of more of nucleating agents, toners, thermal stabilizers, antioxidants, and end-capping agents.</p> |
