Dark Colored Laser Transparent Composition and Molded Articles Made Therefrom
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United States of America Patent
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Issued Date -
Apr 6, 2023
app pub date -
Aug 11, 2022
filing date -
Aug 13, 2021
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Abstract
Polyester polymer compositions are described containing a blend of coloring agents and optionally reinforcing fibers. The polyester polymer, for instance, can be polybutylene terephthalate. The polymer composition is particularly formulated in order to be substantially transparent at specific wavelengths of light. Consequently, the polyester polymer composition is well suited for use in laser transmission welding in which a laser beam passes through the polymer composition and forms a weld on an adjoining surface.
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