Use of an arylsulphonylurethane as film forming resin in nitrocellulose nail varnishes, new arylsulphonylurethanes and new nitrocellulose nail varnishes
AssigneeSociete Nationale des Poudres et Explosifs
InventorsMaryse LeCacheur, Eric Wimmer, Vincent Mutterer
Life of this patent
Estimating the term…
Abstract
The present invention lies in the field of nitrocellulose nail varnishes and its subject is the use of an arylsulphonylurethane as film forming resin in these varnishes, which makes it possible in particular to avoid the release of formaldehyde, a carcinogenic compound which is formed when an arylsulphonamide-formaldehyde resin is employed. Another subject of the invention is new poly(arylsulphonylurethanes) containing from 2 to 5 arylsulphonylurethane groups and possessing a molecular mass of between 450 and 1500.
Claims8
A poly(arylsulphonylurethane) of molecular weight 450-1500 of formula (II) ##STR32## wherein n is an integer and 2.ltoreq.n.ltoreq.5 and A is a di-, tri, tetra- or pentavalent organic radical, depending whether n is equal to 2, 3, 4 or 5 respectively, and A is the residue of a polyol of structure ##STR33## and A is a member selected from the group consisting of polymethylene glycols, polyoxyalkylene glycols, polyethertriols, polyethertetraols, glycerol, trimethylolalkanes and xylitol.
A nail varnish consisting essentially of nitrocellulose, a film forming resin, a plasticizer, a gelling agent and a solvent-diluent system wherein the film forming resin includes an arylsulphonylurethane which is a member selected from the group consisting of poly(arylsulphonylurethanes) of formula (II) ##STR36## wherein n is an integer and 2<n<5 and A is a di-, tri, tetra- or pentavalent organic radical, depending whether n is equal to 2, 3, 4 or 5 respectively, and A is the residue of a polyol of structure A(OH).sub.n and A is a member selected from the group consisting of polymethylene glycols, polyoxyalkylene glycols, polyethertriols, polyethertetraols, glycerol, trimethylolalkanes and xylitol and of mono(arylsulphonylurethanes) of formula (I) ##STR37## wherein Ar is an aromatic group;
- R is a linear or branched alkyl or cycloalkyl group, or an alkyl or cycloalkyl group substituted by at least one alkoxy or polyoxyalkyl group and at least one additive which is a pigment, a dye, a wetting agent, a gelling agent, a swelling agent, an Oriental essence or an agent capable of absorbing UV radiation.
Dependencies are inferred from the claim text.