Back to results
US 2003/0191223 A1Published application
Laser-inscribable coating based on a polymer powder
AssigneeDegussa AG
InventorsPaul-Ludwig Waterkamp, Heinz Scholten, Wolfgang Christoph, Thomas Schiffer
Life of this patent
Estimating the term…
Abstract
A thermoplastic polymer powder composition which contains a thermoplastic polymer and a laser light-active compound is used for coating of metallic substrates. The resulting coating can be subsequently inscribed using laser light, even after further coating with a finish layer.
Claims20
A thermoplastic polymer powder composition, comprising:
- a thermoplastic polymer;
- and
- a laser light-sensitive compound.
A process for the coating of a metallic substrate, comprising:
- contacting said metallic substrate with a thermoplastic polymer powder composition which comprises a thermoplastic polymer and a laser light-sensitive compound.
Dependencies are inferred from the claim text.