| 摘要 |
The present invention relates to compositions which are useful as cosmetic or therapeutic agents for nails. The present compositions form films exhibiting a 7-day Toughness Value of from about 1.2 MPa to about 12 MPa. The films preferably further have a Rigidity Value of from about 500 to about 1300 MPa. The compositions also advantageously provide films having a 7-day Wear Value of from about 1000 (MPa)<2> to about 5000 (MPa)<2>. The compositions and films are particularly useful as nail polishes providing improved wear. Preferred compositions contain, by weight of the composition, from about 5 % to about 20 % of a film forming cellulosic polymer; from about 1.25 % to about 8 %, of a film forming polyurethane polymer; from about 3 % to about 20 % of a plasticizer; and from about 55 % to about 90 % of a volatile, organic solvent. The invention also relates to films formed from the compositions, and methods of treating the nails comprising application of the composition to the nails. |
