Polysulfone compositions and derivatives thereof
US4517354A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1983 |
| Grant date | May 14, 1985 |
| Priority date | — |
| Expiry date | Oct 31, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L81/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The compositions disclosed herein comprise compounds of the formula: EQU DOOCArO-ArSO.sub.2 Ar'QAr'SO.sub.2 Ar-OArCOOD (I) and also derivatives and polymers therefrom or from the compound: EQU X-ArSO.sub.2 Ar'QAr'SO.sub.2 Ar-X in which compounds D is hydrogen, halogen or a monovalent hydrocarbon radical, preferably of 1-20 carbon atoms; Q is either --O-- or --SO.sub.2 --; Ar and Ar' are divalent aromatic groups including a multiplicity of aromatic groups linked by O, SO.sub.2, hydrocarbon groups, etc.; and X is preferably Cl but may be other halogen atoms. In these compounds, the central core or residue --ArSO.sub.2 Ar'QAr'SO.sub.2 Ar-- may be represented by A. Various derivatives and polymers having the core A are prepared, such as diamides of the formula R.sub.2 NOCArO-A-OArCONR.sub.2 ; polyester polymers of the formula [--OROOCArO-A-OArCO--]; polyarylate polymers of the formula [--ArCOOArO-A-OArOOCArCOO--]; polycarbonate polymers of the formula [--OCOOArO-A-OArOOCO--]; phenolic resins, and many other derivatives. These compositions exhibit many desirable properties and have many uses including the improvement or upgrading of polyethylene terephthalate (PET) and polybutyleneterep…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.