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Ultraviolet (UV) Stabilizers

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From 07/18/2014 through 2/7/2012

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Notes

“UV light stabilizers are used frequently in plastics, including cosmetics and films. The primary function is to protect the substance from the long-term degradation effects from light, most frequently ultraviolet light. Different UV stabilizers are utilized depending upon the substrate, intended functional life, and sensitivity to UV degradation.

UV stabilizers, such as benzophenones, work by absorbing the UV radiation and preventing the formation of free radicals. Depending upon substitution, the UV absorption spectrum is changed to match the application. Concentrations normally range from 0.05% to 2%, with some applications up to 5%.”

(Wikipedia, UV Stabilizers, 5/16/2012)

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Roger D. Corneliussen
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Copyright 2012 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen
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* Date of latest addition; date of first entry is 5/16/2012.

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