General Electric Company

Franciscus Petrus Mercx

Tohru Takekoshi

Farid Fouad Khouri

Chris Van Der Weele

Johannes Jacobus De Moor

Yvonne Flohil-Janse

A resin composition having laser marking properties with the CO.sub.2 laser with radiation at 10600 nm comprises a polyester thermoplastic resin, a sufficient amount of dark pigment for forming a dark background coloration, a mica material for absorbing said laser radiation, and an effective amount of a hydrated metal phosphate containing water of crystallization wherein said metal phosphate decomposes in laser struck areas to release said hydrated water whereby light colored markings in laser struck areas are obtained on said dark background coloration.

Composition for laser marking

The instant invention provides a substantially flame retardant composition comprising: (a) a thermoplastic polyester and copolyester material, a halogenated organic fire retardant, antimony oxide, organo clay, and a fluorocarbon polymer. Also provided are compositions comprising glass fibers and stabilizers. The combination of the organo clay and the fluorocarbon polymer exhibits a synergistic effect on the fire retardant properties of the instantly claimed composition. This synergistic effect helps reduce the amount of the halogenated organic fire retardant in the instantly claimed flame retardant composition.

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Bergen op Zoom, Netherlands

Franciscus Petrus Mercx