Polycarbonates
US9944749B2 · kind B2 · utility
14Cited by
95References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Aug 2, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1352
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polycarbonates made from polyhydric phenols that preferably exhibit estrogenic activity less than bisphenol S exhibit properties such as high impact strengths, moderate to high glass transition temperatures, chemical resistance, and good color and clarity similar to conventional BPA-derived polycarbonates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.