PHOTOCURABLE LIQUID SILICONE COMPOSITION, CURED ARTICLE THEREOF, OPTICAL FILLER CONTAINING SAID COMPOSITION, AND DISPLAY DEVICE CONTAINING LAYER COMPRISING CURED ARTICLE THEREOF
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United States of America Patent
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Issued Date -
Apr 6, 2023
app pub date -
Feb 19, 2021
filing date -
Feb 21, 2020
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Abstract
A photocurable liquid silicone composition, that has low viscosity that facilitates injection into a small gap, cures quickly by irradiating with a high energy beam (such as ultraviolet light or the like), has a refractive index after curing that is high not only in a visible region but also in an infrared region, and is particularly useful as a material for a device using an infrared LED light source, is provided. The photocurable liquid silicone composition comprises: (A) an organosilane or low molecular weight organosiloxane with one to five silicon atoms and in one molecule, at least two alkenyl groups and at least two monovalent functional groups selected from aromatic groups and aralkyl groups, (C) in one molecule, a compound having at least two mercapto groups, and (D) a photoradical initiator. The refractive index of the entire liquid composition, prior to curing, is 1.48 or higher.
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