| 摘要 |
<p>PCT No. PCT/GB93/02461 Sec. 371 Date Jun. 15, 1995 Sec. 102(e) Date Jun. 15, 1995 PCT Filed Nov. 30, 1993 PCT Pub. No. WO94/12652 PCT Pub. Date Jun. 9, 1994A process for producing a polyester comprising as repeating units (i) residues of at least one aliphatic hydroxycarboxylic acid, aminocarboxylic acid, or derivative thereof; or (ii) residues of (a) at least one aliphatic dicarboxylic acid or derivative thereof, (b) at least one aliphatic hydroxyamine, diol, polyol, diamine or polyamine, and optionally (c) at least one aliphatic hydroxycarboxylic acid, aminocarboxylic acid or derivative thereof; comprises reacting the components defined in (i) or components defined in (ii) in the absence of a solvent and in the presence of a lipase.</p> |
