Process for the production of impact-modified polyalkylene terephthalate/polycarbonate compostions
AssigneeBayer MaterialScience AG
InventorPierre Moulinie
Life of this patent
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Abstract
A process for the production of impact-modified composition that contains polyalkylene terephthalate and polycarbonate resins is disclosed. The process includes (i) in a first step combining in the melt at 90 to 175° C. glycidyl ester with at least one member selected from the first group consisting of polyalkylene terephthalate and polycarbonate to obtain a molten mixture, said member in powder form, and (ii) in a subsequent step combining the molten mixture with at least one component selected from the second group consisting of polyalkylene terephthalate and polycarbonate to obtain a composition. The composition is characterized in high gloss value.
Claims12
A process for producing an impact-modified polyester/polycarbonate composition, comprising:
- (i) combining, at a temperature of from 90 to 175° C., a melt of glycidyl ester with a powder form of at least one member selected from a first group consisting of polyalkylene terephthalate and polycarbonate, thereby obtaining a mixture;
- and
- in a subsequent step, combining the mixture with at least one component selected from a second group consisting of polyalkylene terephthalate and polycarbonate, thereby obtaining the impact-modified polyester/polycarbonate composition.
Dependencies are inferred from the claim text.