Hydrostable polyetherimide blends, methods of manufacture, and articles formed therefrom
US9006319B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2011 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | Mar 24, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/49
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition comprising, based on the total weight of the composition, from 10 to 90 wt. % of a polyetherimide with a weight average molecular weight from 10,000 to 80,000 Daltons; from 10 to 90 wt. % of a polymer selected from polycarbonates, polyester-polycarbonates, polyalkylene terephthalates, or a combination thereof, from 0.005 to 1 wt. % of a hydrotalcite having a particle size of less than 10 micrometer and a magnesium oxide to aluminum oxide mole ratio of 1.0 to 5.0; from 0.01 to 1.0 wt. % of a phosphorus-containing stabilizer; from 0.01 to 1.00 wt. % of a hindered phenol stabilizer; optionally, from 0 to 3 wt. % of a polyolefin; and optionally, from 0 to 5 wt. % of an inorganic metal oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.