High purity lignin, lignin compositions, and higher structured lignin
First Claim
Patent Images
1. A technical lignin comprising:
- a methoxyl content of 102 units to 120 units, per 100 aromatic units; and
an oxygenated aliphatic content of 100 units to about 150 units, per 100 aromatic units.
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Abstract
Disclosed are lignins and lignin compositions having high purity. Also disclosed are lignins having unique structural characteristics, including less structural degradation than conventional lignins.
66 Citations
32 Claims
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1. A technical lignin comprising:
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a methoxyl content of 102 units to 120 units, per 100 aromatic units; and an oxygenated aliphatic content of 100 units to about 150 units, per 100 aromatic units. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A technical lignin comprising:
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a methoxyl content of 102 units to 138 units, per 100 aromatic units; and an oxygenated aliphatic content of 100 units to 120 units, per 100 aromatic units. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A technical lignin comprising:
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a methoxyl content of 102 units to 114 units, per 100 aromatic units; and an oxygenated aliphatic content of about 80 units to about 150 units, per 100 aromatic units. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A technical lignin having a 1H—
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13C HSQC NMR spectrum comprising the cross peaks shown in
FIG. 4 .
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13C HSQC NMR spectrum comprising the cross peaks shown in
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32. A technical lignin having a 13C NMR spectrum comprising the spectrum shown in
FIG. 5 .
Specification