Polyetherimide resin/polyester resin blends having improved visual clarity
US6646031B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2002 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | Mar 26, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L79/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Transparent thermoplastic resin compositions include a polyetherimide resin, a polyester resin, sodium benzene phosphinate, and optionally 3,4-epoxy cyclohexylmethyl-3,4-epoxy cyclohexanecarboxylate and preferably comprising a first polyester resin and a second polyester resin and sodium benzene phosphinate, wherein from 50 to 100 mole percent of the structural units of the first polyester resin include an alicyclic hydrocarbon radical as the diol residue of the structural unit, and wherein less than 50 mole percent of the structural units of the second polyester include an alicyclic hydrocarbon radical as the diol residue of the structural unit, exhibit resistance to elevated temperature and improved impact properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.