Resin compositions for laser marking
First Claim
Patent Images
1. A resin composition for laser marking, comprising:
- [A] a thermoplastic resin.[B] one or more compounds selected from the group consisting essentially of tetrazole compounds, and also sulfonylhydrazide compounds, nitroso compounds and azo compounds having a decomposition temperature of 210°
C. or more, and[C] carbon black.
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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° C., and carbon black.
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Citations
14 Claims
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1. A resin composition for laser marking, comprising:
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[A] a thermoplastic resin. [B] one or more compounds selected from the group consisting essentially of tetrazole compounds, and also sulfonylhydrazide compounds, nitroso compounds and azo compounds having a decomposition temperature of 210°
C. or more, and[C] carbon black. - View Dependent Claims (2)
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3. A resin composition comprising
(A) a thermoplastic resin; - and
(B) one or more compounds selected from the group consisting essentially of (i) tetrazole compounds, (ii) sulfonylhydrazide, nitroso and azo compounds having a decomposition temperature of 210°
C. or more, and(C) carbon black. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of marking a resin composition the steps of preparing a resin composition of
(A) a thermoplastic resin, (B) 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 210° - C. or more, and
(C) carbon black, and irradiating at least a portion of a surface of the resin composition with a laser. - View Dependent Claims (14)
- C. or more, and
Specification