prov:value
| - lcium hydroxide, calcium carbonate, magnesium oxide, magnesium carbonate, dolomite, lithium hydroxide, lithium carbonate, zinc oxide, zinc carbonate and basic inorganic fillers.Weak basic neutralizing agents, such as urea or caprolactam, and basic fillers may be used in excess over the sulfonic acid groups present.The products of the present invention are valuable starting materials for the produc
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