Branched thermoplastic polycarbonates having improved protection against UV light
US5001177A · kind A · utility
16Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 1987 |
| Grant date | Mar 19, 1991 |
| Priority date | — |
| Expiry date | May 8, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2307/56
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
This invention relates to branched thermoplastic polycarbonates containing hydroxybenzotriazoles corresponding to the following general formula (I): ##STR1##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.