Polyester-polycarbonate compositions
US7226985B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2005 |
| Grant date | Jun 5, 2007 |
| Priority date | — |
| Expiry date | Jul 28, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/5205
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed are polymer compositions comprising: (A) a first component comprising about 1 to 99 percent by weight at least one polyester (A) comprising: (1) diacid residues selected from the group consisting of terephthalic acid residues, isophthalic acid residues and mixtures thereof, and (2) diol residues selected from the group consisting of 1,4 -cyclohexanedimethanol residues, ethylene glycol residues and mixtures thereof; wherein the molar ratio of 1,4-cyclohexanedimethanol to ethylene glycol is less than 0.50; (B) a second component comprising about 99 to 1 percent by weight of a miscible blend of: (1) at least one polycarbonate (B) of bisphenol A (2) at least one polyester (C) comprising (a) diacid residues selected from the group consisting of terephthalic acid residues, isophthalic acid residues and mixture thereof, and (b) diol residues selected from the group consisting of 1,4-cyclohexanedimethanol residues, ethylene glycol residues, and mixtures thereof; wherein the molar ratio of 1,4-cyclohexanedimethanol to ethylene glycol is 0.50 or greater; and, wherein the total weight percent for the first component and for the second component is equal to 100 weight percent; and wh…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.