| 摘要 |
Case Docket No. CHR 83-1 (C-I-P) II Serial No. 07/045,683 SULFOMETHLATED LIGNIN AMINES Surface active agents are prepared from by-products of papermaking. Lignin, modified lignin, resin acid, and tall oil fatty acid are reacted with a polyamine to produce an amine condensate, and this amine condensate is reacted with a bisulfite and formaldehyde in aqueous solution to produce the novel surface active agents. |
