Polymer compositions, molded articles and films with improved hydrolytic stability
申请人:HOOKER CHEMICALS & PLASTICS CORP.
公开号:EP0007171A1
公开(公告)日:1980-01-23
This invention relates to substantially transparent solid solution polymer blends having improved hydrolytic stability, and flexibility which comprise (a) a linear aromatic polyester containing as monomer units the residues of a dicarboxylic acid and a bisphenol, and (b) a linear aromatic polysulfonate containing as monomer units the residues of a bisphenol and a disulfonic acid. The polyblends are useful in preparation of films and molded articles.
Polyesters of bis (2-(4-hydroxyphenyl) hexafluoroisopropyl)- diphenyl ether
申请人:HOECHST CELANESE CORPORATION
公开号:EP0323561A2
公开(公告)日:1989-07-12
Polyesters of 4,4′-bis[2-(4-hydroxyphenyl)hexafluoroisopropyl]diphenyl ether having high transparency, high solvent solubility and excellent melt processability are prepared. They possess high thermal and radiation stability and are useful in the preparation of protective films, protective paints, films, fibers, diffusion membranes and shaped articles where high service temperature and radiation resistance are desired.