Transparent thermoplastic molding compositions
US5461120A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 1994 |
| Grant date | Oct 24, 1995 |
| Priority date | — |
| Expiry date | May 18, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L69/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A thermoplastic molding composition which has an improved total light transmission value comprising (i) copolyester of ethylene terephthalate and cyclohexane dimethanol and (ii) at least one member selected from the group consisting of PA1 (a) an aromatic copolycarbonate resin which contains at least some structural units derived from a dihydroxy compound having a special cyclic bridging units and PA1 (b) a blend containing (b1) and (b2) wherein PA2 (b1) is an aromatic polycarbonate resin which is derived from dihydroxy compounds having no special cyclic bridging units and where PA2 (b2) is said (a), is disclosed. The special cyclic bridging unit corresponds to ##STR1## wherein R.sup.3 and R.sup.4, X and m are defined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.