Chemical Products for Industrial Purposes, Especially for Use in the Exploration and Exploitation of Oil, Gas and Water-Namely, Drilling Fluid Additives; Chemical Products for Use in the Building Industry-Namely, Additives for the Suspensions Used Therein; Chemicals Used in the Manufacture of Detergents; Wetting and Dispersing Agents, and Emulsifiers for Use in the Textile, Sugar, Gypsum, Detergent, Pesticide and Polymerization Industries; and Industrial Wetting and Cleaning Agents for Use in...