4,4'-Bis(3-ethynylphenoxy)diphenylsulfone
US4131625A · kind A · utility
14Cited by
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1Claims
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Assignee
Inventors
Key dates
| Filing date | Jan 19, 1978 |
| Grant date | Dec 26, 1978 |
| Priority date | — |
| Expiry date | Jan 19, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2918
- 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-hydroxy-phenyl 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.