Pigmented plastics molding composition and its use

Details Pigmented plastics molding composition and its use Pigmented plastics molding composition and its use

1994-08-30

1997-02-04

Cain, Edward J.

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...

524496, 524417, C08K 300

Patent

active

055998690

ABSTRACT:
A plastics molding composition comprises (a) at least one organic thermoplastic polymer, (b) at least one mineral black pigment and (c) another coloring agent which is an inorganic and/or organic pigment and/or a polymer-soluble dyestuff, and if appropriate (d) further additives. This molding composition is used for the production of shaped objects which are provided with colored symbols with the aid of a laser beam. In the process for the production of such a shaped article, the molding composition mentioned is employed and the resulting shaped article is exposed to a laser beam having a principal wavelength of 1,064 nm or of 532 nm.

REFERENCES:
patent: 4391764 (1983-05-01), Edinger et al.
patent: 4477608 (1984-10-01), Babler et al.
patent: 5053440 (1991-10-01), Schueler
patent: 5350792 (1994-09-01), Hess et al.
European Search Report No. 94113046.0, Dec. 22, 1994.

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