Polycarbonate resin and transparent film formed therefrom
US8778486B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 17, 2012 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | May 17, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31507
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The polycarbonate resin of the invention includes a first structural unit derived from a dihydroxy compound represented by a general formula (1), a second structural unit derived from a dihydroxy compound represented by a general formula (2), and a third structural unit derived from at least one dihydroxy compound selected from the group consisting of a dihydroxy compound represented by a general formula (3), a dihydroxy compound represented by a general formula (4), a dihydroxy compound represented by a general formula (5), and a dihydroxy compound represented by a general formula (6), and in which the first structural unit derived from a dihydroxy compound represented by the general formula (1) accounts for 18% by mole or more of the polycarbonate resin. The above general formulae (1) to (6) are described in the specification of the present application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.