Polyaminoacids as builders for formulations of detergents
AssigneeMontedipe S.p.A.
InventorsAnnick Du Vosel, Franco Francalanci, Paola Maggiorotti
Life of this patent
Estimating the term…
Abstract
This invention relates to use of polyaminoacids as builders or co-builders in the formulation of detergents. These polyaminoacids, which are highly efficient as complexing agents, have good resistance to heat and stability to pH and are entirely biodegradable, have been chosen among those having the general formula: ##STR1## with substituents which are defined in the following description. The formulations of detergents contain, apart from the above builders, surface active agents, alumina-silicates and additives chosen from neutral salts, enzymes, bleaching agents, stabilizers, anti-foaming agents, perfumes, bactericides.
Claims3
A detergent formulation containing 10 to 40% by weight of at least one surface active agent, from 5 to 50% of weight of at least one sodium aluminosilicate, from 0.5 to 70% by weight of at least one additive chosen from neutral salts, enzymes, bleaching agents, stabilizers, anti-foaming agents, perfumes, bactericides and from 5 to 50% by weight of a builder or cobuilder which is at least one polyamino acid chosen from those having the formula:
- ##STR5## in which m can be 1 or 2;
- n is between 100 and 2000;
- R is a radical chosen from:
- H, CH.sub.3, COY, CH.sub.2 COY, CH.sub.2 CH.sub.2 COY, CH.sub.2 CH.sub.2 CH.sub.2 NHC.dbd.(NH.sub.2)NH CH.sub.2 SH, CH.sub.2 CH.sub.2 CH(OH)CH.sub.2 NH.sub.2, CH.sub.2 CH(CH.sub.3).sub.2, CH(CH.sub.3)CH.sub.2 CH.sub.3, CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 NH.sub.2, CH.sub.2 CH.sub.2 SCH.sub.3, ##STR6## wherein Y can be:
- --OZ wherein Z represents H or a C.sub.1 -C.sub.15 alkyl radical;
- or --NZZ' wherein Z and Z' are the same or different from one another, and represent H or a C.sub.1 -C.sub.15 alkyl radical.
Dependencies are inferred from the claim text.