Grillo-werke Ag

Ludwig Taprogge Reinigungsanlagen Fur Rohren-warmeaustauscher

Natvarlal B Desai

Norbert Lowicki

The zinc salt of the hydrolyzed tricarboxylic acid from Diels-Alder adducts or ene-adducts of maleic anhydride to undecylenic acid, preferably in a molar ratio of from 0.8 to 1.2, are described as skin-compatible bactericides and fungicides. They are preferably used in cosmetic preparations. They are more active and less toxic than the substances previously known and used for said purposes.

Zinc salt of a hydrolyzed tricarboxylic acid from ene-adducts of maleic

Disclosed are novel polyhydric alcohol partial esters of polycarboxylic acids from Diels-Alder adducts of maleic anhydride and a straight chain unsaturated carboxylic acid having ten to twenty-five carbon atoms. The partial esters can be subsequently sulfated. The polyhydric alcohol can be a mono- or disaccharide such as sucrose or mannose. The partial esters are surfactants which are dermatologially acceptable and useful in personal products and skin-care products.

Surfactants which are polyhydric alcohol partial esters of adducts of

The reaction product of long-chain unsaturated hydrocarbons (fatty derivatives) with maleic acid anhydride and/or maleic acid is added to the salt-containing water of a thermal desalination installation to increase the solubility of the calcium and magnesium salts and prevent encrustation of heating surfaces thereby.

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Dinslaken, Germany

Natvarlal B Desai