Resin compositions for laser marking

Details Resin compositions for laser marking Resin compositions for laser marking

1993-05-25

1994-12-13

Morgan, Kriellion S.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524173, 524259, 524424, 522 75, 522 78, 430292, 430298, C08K 534, C08K 532, C08K 300

Patent

active

053730399

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.

REFERENCES:
patent: 4032691 (1977-06-01), Kido et al.
patent: 4241166 (1980-12-01), Klupfel et al.
patent: 4629679 (1986-12-01), Uchida et al.
patent: 5063137 (1991-11-01), Kiyonari et al.

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