Polyesters derived from diketodiols and aromatic dicarboxylic acids and
申请人:E. I. Du Pont de Nemours and Company
公开号:US04226970A1
公开(公告)日:1980-10-07
High modulus filaments are melt-spun from polyesters which are derived from certain substituted aromatic diketodiols and aromatic dicarboxylic acids. The polyesters are optically anisotropic in the melt. As-spun filaments from these polyesters can be heat treated while free from tension to increase their tenacity.