Elastomer blends containing polycarbonates and copolyetheresters derived from polyethylene terephthalate, method of manufacture, and articles therefrom
US8309656B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2007 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Jun 15, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L83/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition comprising from 10 to 90 weight percent of a copolyetherester elastomer comprising: a modified, random polybutylene terephthalate copolymer block that is derived from a polyethylene terephthalate component selected from the group consisting of polyethylene terephthalate, polyethylene terephthalate copolymers, and combinations thereof; and that contains at least one residue derived from the polyethylene terephthalate component; and a polyalkylene oxide copolymer block that is derived from the polyethylene terephthalate component and a polyalkylene oxide glycol, and that contains polyalkylene oxide and at least one residue derived from the polyethylene terephthalate component; from 10 to 90 weight percent of a polycarbonate; and from 0 to 60 weight percent of a polyester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.