Resin compositions for laser marking
US5373039A · kind A · utility
43Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 1993 |
| Grant date | Dec 13, 1994 |
| Priority date | — |
| Expiry date | May 25, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/0008
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A resin composition suitable for marking with a laser and a method for laser marking said resin are provided. The resin composition comprises a thermoplastic resin, one or more compounds selected from the group consisting essentially of (i) tetrazole compounds, and (ii) sulfonylhydrazide, nitroso and azo compounds having a decomposition temperature of at least 210.degree. C., and carbon black.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.