Polytetrafluoroethylene coating material for laser marking
US6617515B1 · kind B1 · utility
25Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 20, 1996 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Mar 20, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31544
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A coating material based on polytetrafluoroethylene (PTFE) containing pigments and suitable for marking with a UV laser includes raw PTFE, 0.01 to 5 wt. % titanium oxide pigment, and 0.1 to 5 wt. % of one or more of arylene sulfide polymers, particularly polyphenylene sulfide (PPS); polyarylsulfones, in particular polysulfone (PSU) or polyethersulfone (PES); and polyaryletherketones, in particular polyetherketone (PEK) or polyetheretherketone (PEEK).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.