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| Patents for C08H 99 - Subject matter not provided for in other groups of this subclass (521) |
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| 03/09/1982 | US4319041 By extraction using causic soda to dissolve a humic acid bearing ore | | 10/27/1981 | CA1111206A1 Process for making a shapeable cellulose and shaped cellulose products | | 09/15/1981 | US4289663 Dehydration of sugars to furfural derivatives, condensation with lignin | | 09/01/1981 | CA1108126A1 Agricultural residue extracts and their use | | 05/06/1980 | US4201851 Organic phenol extract compositions of pecan pith agricultural residues and method | | 05/06/1980 | US4201700 Phenol-aldehyde resin composition containing peanut hull extract and an aldehyde | | 05/06/1980 | US4201699 Phenol-aldehyde resin composition containing pecan pith extract and an aldehyde | | 04/29/1980 | US4200723 Organic phenol extract compositions of peanut hull agricultural residues and method | | 04/01/1980 | US4196282 Process for making a shapeable cellulose and shaped cellulose products | | 07/25/1979 | EP0003135A2 Process for improving the solubility of viscose | | 03/06/1979 | CA1050013A1 Polymer made of lignin, and method for making it | | 08/15/1978 | US4107111 Polymer made of lignin, and method for making it | | 07/11/1978 | US4100155 Acidificatin | | 12/20/1977 | US4064166 Etherification of bark extracts | | 11/01/1977 | US4056400 Alkali hypohalite, precipithtion | | 07/26/1977 | US4038172 Coal, paper, wood, lignin substances, red clay catalyst | | 07/20/1976 | US3970691 Etherification of bark extracts | | 05/04/1976 | US3954497 Hydrolysis of deciduous wood | | 01/13/1976 | US3932494 Thiohumic acid, a process for preparing same, and its use for absorbing heavy metal ions | | 01/13/1976 | US3932488 Alkaline catalyst; polyphenolic extract | | 01/06/1976 | US3931003 Ion exchanger for the treatment of waste water |
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