Compositions comprising lignin
First Claim
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1. A phenolic resin:
- wherein at least a portion of said phenolic resin is produced by a reaction with a phenol substitute;
wherein said phenol substitute comprises;
lignin; and
less than about 2000 mg in total per kg of said lignin of elements;
wherein said elements are Al, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, P, Pb, S, Sb, Se, Si, Sn, Sr, Ti, Tl, V, and Zn.
1 Assignment
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Accused Products
Abstract
Compositions comprising lignin and low levels of undesirable impurities, such as compounds containing sulfur, nitrogen, or metals, are disclosed.
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Citations
30 Claims
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1. A phenolic resin:
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wherein at least a portion of said phenolic resin is produced by a reaction with a phenol substitute; wherein said phenol substitute comprises; lignin; and less than about 2000 mg in total per kg of said lignin of elements; wherein said elements are Al, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, P, Pb, S, Sb, Se, Si, Sn, Sr, Ti, Tl, V, and Zn. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A phenol formaldehyde resin comprising:
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a reaction product of phenol and formaldehyde; and an extender, wherein said extender comprises; lignin; and less than about 2000 mg in total per kg of said lignin of elements; wherein said elements are Al, As, B, Ba, Be, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, P, Pb, S, Sb, Se, Si, Sn, Sr, Ti, Tl, V, and Zn. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification