Reactive plasticizer for thermoplastic polysulfone resins
US4108926A · kind A · utility
35Cited by
1References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1976 |
| Grant date | Aug 22, 1978 |
| Priority date | — |
| Expiry date | Oct 28, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/41
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The new composition 4,4'-bis(3-ethynylphenoxy)diphenylsulfone is prepared by the nucleophilic displacement reaction of m-hydroxyphenyl acetylene with various disubstituted diphenylsulfones. The composition is useful as a composite resin and also as a reactive plasticizer for polysulfone thermoplastic resins. A reactive plasticizer is a material that remains fluid and acts as a plasticizer during early stages of fabrication and then polymerizes to a rigid resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.