Thermally stable, rigid polyesters from aromatic dibasic acids and
申请人:E. I. Du Pont de Nemours and Company
公开号:US04065431A1
公开(公告)日:1977-12-27
Rigid polyesters of the formula ##STR1## WHERE R and R.sup.1 are each arylene or substituted arylene and n is at least about 10 have a combination of being thermally stable and melt spinnable.
Thermally stable, rigid, aliphatic diols of the formula ##STR1## where R is a substituted or unsubstituted arylene group are useful as intermediates for forming polymers such as thermally stable, rigid polyesters.