Method for manufacturing a polyester composition having improved impact properties
US8653192B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2010 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Jul 13, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L55/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for manufacturing a thermoplastic composition including: a polyester resin (c); a mixture including a copolymer (a) of an α-olefin and of a monomer having an ethylenic unsaturation and an epoxy function, as well as a core-shell compound (b); characterized in that said method includes a first step of manufacture the mixture of (a) and (b) by extrusion at a temperature at which the copolymer (a) is in the molten state and at a maximum temperature of 60 to 180° C.; a second step of manufacturing the thermoplastic composition by extrusion or by mixing the polyester resin (c) with the mixture of (a) and (b) produced in the first step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.