Grillo-werke Ag

Norbert Lowicki

Natvarlal B Desai

Michael Sidillo

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

Compositions and processes comprising certain metal salts of an unsaturated hydroxy carboxylic acid having 17-21 carbon atoms are disclosed as the active ingredient in various deodorants. Also described are various synergistic agents, anti-oxidants and reinforcing agents which are useful therewith.

Deodorants for both cosmetic and commercial use

Method of preventing deposits of dissolved inorganic salts on heated surfaces, such as tubular heat exchangers, is carried out by adding a deposit-preventing agent to the water before contact with the heated surfaces. Compounds complexing with cations are combined with anionic substances which are capable of salt formation with complex bound cations to form additive compositions which are added to the water in the zone near the walls of vessels or tubular heat exchangers subject to deposit incrustation. Such compositions are formed from cation-complexing compounds comprising a mixture of sulfurous acid esters of di- and/or polysaccharides and carboxymethyl cellulose as cation-complexing compounds, which mixture is combined with anionic substances comprising sulfonated fat by alcohols and/or fatty acids in the weight ratio having a range of from about 80 parts by weight cation-complexing compound to about 20 parts by weight anionic substance to (2) about 95 parts by weight cation-complexing compound to about 5 parts by weight anionic substance, the preferred weight ratio being 85:15 to 90:10 of cation-complexing compound; anionic substance, respectively. These compositions are added to the water in amounts ranging from 10 to 60 milligrams per liter, preferably 20 to 30 milligrams per liter.

Growing community of inventors

Duisburg, Germany

Norbert Lowicki