Magnesium low base number sulphonates

摘要

PCT No. PCT/EP96/00813 Sec. 371 Date Sep. 10, 1997 Sec. 102(e) Date Sep. 10, 1997 PCT Filed Feb. 27, 1996 PCT Pub. No. WO96/26920 PCT Pub. Date Sep. 6, 1996Magnesium low base number (LBN) sulphonates derived from high molecular weight sulphonic acids have low viscosity and are chloride free. The magnesium low base number sulphonates are not skin sensitisers. In their preparation neutralization of high molecular weight sulphonic acids or partially neutralized soaps of high molecular weight sulphonic acids is completed by the use of a high base number sulphonate in conjunction with a carboxylic acid. The process does not require the use of chloride containing promoters and produces low chloride products.