MODIFIED WOOD AND TRANSPARENT WOOD COMPOSITES, AND SYSTEMS AND METHODS FOR FORMING AND USE THEREOF
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United States of America Patent
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Issued Date -
Aug 17, 2023
app pub date -
Jul 9, 2021
filing date -
Jul 10, 2020
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Abstract
In some embodiments, a material comprises a contiguous block of chemically-modified wood infiltrated with an index-matching polymer. The contiguous block has a first section that is substantially transparent to light and a second section that is translucent or opaque. The first section can have a lower lignin content than the second section. Alternatively, the first section can have a chromophore state altered from that of the wood in its natural state, and the lignin in the second section can retain a chromophore state of the wood in its natural state. In some embodiments, a material comprises a section of wood chemically-modified such that chromophores of lignin within the wood in its natural state are altered or removed, and the section retains at least 70% of the lignin of the wood in its natural state. Methods for forming such materials are also disclosed.
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