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Class Information
Number: 530/501
Name: Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof > Lignins or derivatives > Aldehyde, ketone or ozone reacted with a lignin or lignin containing substance, or product thereof
Description: Processes wherein a lignin or a lignin-containing substance is reacted with an aldehyde, with a ketone, or with ozone, or the reaction products thereof.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7498422 |
Lignophenol derivative, polymer, resin composition, and molded resin |
Mar. 3, 2009 |
| 6664002 |
Organic expander for lead-acid storage batteries |
Dec. 16, 2003 |
| 6632912 |
Process for preparing a black liquor-phenol formaldehyde thermoset resin |
Oct. 14, 2003 |
| 6558461 |
Set retarders for foamed cements |
May. 6, 2003 |
| 6346347 |
Organic expander for lead-acid storage batteries |
Feb. 12, 2002 |
| 6291558 |
Composition board binding material |
Sep. 18, 2001 |
| 5925743 |
Polymerized alkaline lignin materials |
Jul. 20, 1999 |
| 5756098 |
Methods for the extraction of phytochemicals from fibrous plants in the absence of solvent |
May. 26, 1998 |
| 5608040 |
Process for the production of lignin-containing polymers |
Mar. 4, 1997 |
| 5554596 |
Virus inhibiting composition |
Sep. 10, 1996 |
| 5446133 |
Nitric acid oxidized lignosulfonates |
Aug. 29, 1995 |
| 5288857 |
Lignin preparation and method for its manufacture |
Feb. 22, 1994 |
| 5281434 |
Composition and process of making an animal feed binder composed of ozonated lignosulfonate |
Jan. 25, 1994 |
| 5202403 |
Lignin modified phenol-formaldehyde resins |
Apr. 13, 1993 |
| 5177169 |
Method for recovering and using lignin in adhesive resins |
Jan. 5, 1993 |
| 5169931 |
Nitrite-oxidized lignosulfonates and method of making the same and use of these as dispersants |
Dec. 8, 1992 |
| 5049661 |
Sulfonation of lignins |
Sep. 17, 1991 |
| 5043432 |
Sulfonation of lignins |
Aug. 27, 1991 |
| 5043434 |
Oleum sulfonation of lignins |
Aug. 27, 1991 |
| 5043433 |
Oleum sulfonation of lignins |
Aug. 27, 1991 |
| 5026808 |
Method for recovering and using lignin in adhesive resins by extracting demethylated lignin |
Jun. 25, 1991 |
| 5021531 |
Method for recovering and using lignin in adhesive resins by extracting demethylated lignin |
Jun. 4, 1991 |
| 5013825 |
Sulfation of lignin |
May. 7, 1991 |
| 5012870 |
Aminated sulfonated or sulformethylated lignins as cement fluid loss control additives |
May. 7, 1991 |
| 5010156 |
Organosolv lignin-modified phenolic resins and method for their preparation |
Apr. 23, 1991 |
| 5008378 |
Submicron lignin dispersions |
Apr. 16, 1991 |
| 4925923 |
Lignin having chemically bound sulfur and phosphorus groups mainly as thiophosphate, using phosphorus pentasulfide |
May. 15, 1990 |
| 4892588 |
Production of lignosulfonate additives |
Jan. 9, 1990 |
| 4892587 |
Lignosulfonate additive-containing carbon black compositions |
Jan. 9, 1990 |
| 4857638 |
Lignin having nitrogen and sulfur and process therefor employing thiourea |
Aug. 15, 1989 |
| RE32895 |
Solubilized lignosulfonate derivatives |
Mar. 28, 1989 |
| 4786720 |
Sulfomethylated lignin amines |
Nov. 22, 1988 |
| 4775744 |
Cationic and anionic lignin amines |
Oct. 4, 1988 |
| 4769434 |
Lignin derivative polymers |
Sep. 6, 1988 |
| 4764597 |
Method for methylolation of lignin materials |
Aug. 16, 1988 |
| 4748235 |
Method of producing improved amine salts of lignosulfonates |
May. 31, 1988 |
| 4732572 |
Amine salts of sulfomethylated lignin |
Mar. 22, 1988 |
| 4728728 |
Sulfonated ligno-aminodicarboxylates and process for making same |
Mar. 1, 1988 |
| 4721778 |
Ammonium lignosulfonates |
Jan. 26, 1988 |
| 4670482 |
Ammonium lignosulfonates |
Jun. 2, 1987 |
| 4642336 |
Ammonium lignosulfonates |
Feb. 10, 1987 |
| 4636224 |
Ammonium lignosulfonates |
Jan. 13, 1987 |
| 4629469 |
Humectant composition derived from kraft black liquor |
Dec. 16, 1986 |
| 4590262 |
Low electrolyte sodium lignosulfonates |
May. 20, 1986 |
| 4562236 |
Reaction product of lignosulfonate and unsaturated fatty amine |
Dec. 31, 1985 |
| 4546173 |
Selective crosslinking of low molecular weight sulfonated lignins and lignosulfate products produced thereby |
Oct. 8, 1985 |
| 4534771 |
Selective crosslinking of low molecular weight sulfonated lignins and lignosulfate products produced thereby |
Aug. 13, 1985 |
| 4521336 |
Process for preparing lignosulfonates |
Jun. 4, 1985 |
| 4486346 |
Color reduction process for non-sulfonated lignin |
Dec. 4, 1984 |
| 4455257 |
Cationic reaction product of kraft lignin with aldehyde and polyamine |
Jun. 19, 1984 |
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