Laser-writable polymer composition

Details Laser-writable polymer composition Laser-writable polymer composition

2005-06-07

2005-06-07

Seidleck, James J. (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S101000, C524S102000, C524S103000, C522S081000, C522S083000

Reexamination Certificate

active

06903153

ABSTRACT:
The invention relates to a polymer composition containing a polymer and, as an additive for making a dark laser marking, at least 0.1 wt. % antimony trioxide having an average particle size above 0.5 micrometer. The invention also relates to articles wholly or partly made of the polymer composition and to a process for applying a dark laser mark onto a light background of such article. The polymer composition according to the invention can be marked with laser light of wavelength 1064 nm.

REFERENCES:
patent: 3898194 (1975-08-01), Sanroma
patent: 6043304 (2000-03-01), Kehal
patent: 6184282 (2001-02-01), Gareiss et al.
patent: 6280520 (2001-08-01), Andes et al.
patent: 4143258 (1993-07-01), None
patent: 0472935 (1992-03-01), None
patent: 0567977 (1993-11-01), None
patent: 8041291 (1996-02-01), None

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