FIELD OF THE INVENTION

The present invention relates to nail compositions comprising diisononyl 1,2-cyclohexanedicarboxylate, as well as to methods of improving hardness and shine properties of nail compositions by including diisononyl 1,2-cyclohexanedicarboxylate in the nail compositions.

DISCUSSION OF THE BACKGROUND

Diisononyl 1,2-cyclohexanedicarboxylate is marketed by BASF under the brand name of Hexamoll® Dinch® and has been approved for many applications in medical devices, food contact packaging and toys. It is disclosed in European Patent 1475071.

Diisononyl 1,2-cyclohexanedicarboxylate has a structure which differs from typical nail polish plasticizers such as phosphates, phthalates, citrates and camphor.

US 2017/0056313 disclose UV-gel nail coatings assertedly having enhanced adhesion.

CN 102512331 appears to disclose a multi-component nail polish that changes with temperature, with one component possibly having an extremely small amount of cyclohexane diisononyl ester.

There remains a need for new ways to improve hardness and shine properties in solvent-based nail compositions, particularly nail compositions containing a cellulose compound like nitrocellulose.

SUMMARY OF THE INVENTION

The present invention relates to a nail composition comprising at least 5% diisononyl 1,2-cyclohexanedicarboxylate by weight with respect to the total weight of the composition. Preferably, the nail composition further comprises nitrocellulose.

The present invention also relates to a nail composition comprising at least one coloring agent and at least 5% diisononyl 1,2-cyclohexanedicarboxylate by weight with respect to the total weight of the composition. Preferably, the nail composition further comprises nitrocellulose.

The present invention also relates to a nail composition set comprising at least one color coat comprising at least one coloring agent and at least one topcoat comprising at least 5% diisononyl 1,2-cyclohexanedicarboxylate by weight with respect to the total weight of the topcoat. Preferably, the color coat and/or topcoat further comprises nitrocellulose.

The present invention also relates to a kit comprising at least one color coat composition comprising at least one coloring agent and at least one topcoat comprising at least 5% diisononyl 1,2-cyclohexanedicarboxylate by weight with respect to the total weight of the topcoat. Preferably, the color coat and/or topcoat further comprises nitrocellulose.

The present invention also relates to a nail composition set comprising at least one color coat comprising at least one coloring agent and at least one basecoat comprising at least 5% diisononyl 1,2-cyclohexanedicarboxylate by weight with respect to the total weight of the basecoat. Preferably, the color coat and/or basecoat further comprises nitrocellulose.

The present invention also relates to a kit comprising at least one color coat composition comprising at least one coloring agent and at least one basecoat comprising at least 5% diisononyl 1,2-cyclohexanedicarboxylate by weight with respect to the total weight of the basecoat. Preferably, the color coat and/or basecoat further comprises nitrocellulose.

The present invention also relates to methods of improving shine and/or hardness properties of a nail composition comprising adding at least 5% diisononyl 1,2-cyclohexanedicarboxylate by weight with respect to the total weight of the composition to the nail composition during preparation of the nail composition. Preferably, the nail composition further comprises nitrocellulose.

The present invention further relates to methods for making up and/or protecting nails comprising applying to the nails a nail composition comprising at least 5% diisononyl 1,2-cyclohexanedicarboxylate by weight with respect to the total weight of the composition. Preferably, the nail composition further comprises nitrocellulose.

The present invention further relates to methods for making up and/or protecting nails comprising applying to the nails (1) at least one color coat comprising at least one coloring agent, and (2) at least one topcoat comprising at least 5% diisononyl 1,2-cyclohexanedicarboxylate by weight with respect to the total weight of the topcoat. Preferably, the color coat and/or topcoat further comprises nitrocellulose.

The present invention further relates to methods for making up and/or protecting nails comprising applying to the nails (1) at least one basecoat comprising at least 5% diisononyl 1,2-cyclohexanedicarboxylate by weight with respect to the total weight of the basecoat; and (2) at least one color coat comprising at least one coloring agent. Preferably, the color coat and/or basecoat further comprises nitrocellulose.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only, and are not restrictive of the invention.

