Miscible blends of polysulfones and aromatic alkyl methacrylate polymers
US5446096A · kind A · utility
3Cited by
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13Claims
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Key dates
| Filing date | May 25, 1994 |
| Grant date | Aug 29, 1995 |
| Priority date | — |
| Expiry date | May 25, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L33/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Blends of an aromatic polysulfone (PSF) and aromatic alkyl methacrylates (PAAM) form thermodynamically miscible mixtures. They exhibit only one glass transition over a wide range of compositions and show marked improvement in mechanical and thermal properties compared to binary mixtures of PSF and other methacrylate or styrenic polymers. Furthermore, they possess better processing and workability without unwanted thermal decomposition owing to better flow properties at relatively lower temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.