Tampons including moisture-activated compositions
View Patent ↗The present disclosure is directed to alleviating the uncomfortable and unpleasant sensations that may accompany insertion and removal of personal care devices. Specifically, the present disclosure is directed to a personal care device that includes a moisture-activated composition that becomes lubricious only upon contact with moisture, such as from mucosal surfaces in the body.
1. A tampon comprising a moisture-activated composition, wherein the composition comprises a hydrophobic carrier, a high molecular weight polymer having a molecular weight of between about 850,000 and 8,000,000 daltons; and C 12 -C 15 Pareth-7.
2. The tampon of claim 1 , wherein the high molecular weight polymer has a molecular weight of about 5,000,000 daltons.
3. The tampon of claim 1 , wherein the composition comprises from about 1% to about 60%, by weight, of the high molecular weight polymer.
4. The tampon of claim 1 , wherein the high molecular weight polymer is sodium polyacrylate.
5. The tampon of claim 1 , wherein the composition comprises from about 0.1% to about 99%, by weight, of the hydrophobic carrier.
6. The tampon of claim 1 , wherein the hydrophobic carrier is mineral oil.
7. The tampon of claim 1 , wherein the composition further comprises a low HLB surfactant.
8. The tampon of claim 1 , wherein the tampon comprises at least one of a pledget and a withdrawal string, and a tampon applicator.
9. The tampon of claim 8 , wherein at least one of the pledget and the withdrawal string comprises the composition.
10. A tampon comprising a moisture-activated composition, wherein the composition comprises a hydrophobic carrier, and a high molecular weight polymer having a molecular weight of between about 850,000 and 8,000,000 daltons; and wherein the low HLB surfactant is sorbitan monooleate.
11. The tampon of claim 10 , wherein the composition comprises from about 1% to about 60%, by weight, of the high molecular weight polymer.
12. The tampon of claim 10 , wherein the high molecular weight polymer is sodium polyacrylate.
13. The tampon of claim 10 , wherein the hydrophobic carrier is mineral oil.
14. The tampon of claim 10 , wherein the composition further comprises a high HLB surfactant.
15. A method of reducing the coefficient of friction during use of a tampon, the method comprising:
applying a moisture-activated composition to the tampon, the composition comprising a hydrophobic carrier, and a high molecular weight polymer having a molecular weight of between about 850,000 and 8,000,000 daltons; and at least one surfactant selected from the group consisting of C 12 -C 15 Pareth-7 and sorbitan monooleate; and
contacting the tampon with a mucosal surface to activate the composition on the tampon, wherein upon contact, the coefficient of friction between the tampon and the mucosal surface is reduced.
16. The method of claim 15 , wherein the tampon is a vaginal tampon.
17. A method of reducing the soiled appearance after removal of a tampon, the method comprising:
applying a moisture-activated composition to a tampon, wherein the composition comprises a hydrophobic carrier; a high molecular weight polymer having a molecular weight of between about 850,000 and 8,000,000 daltons; and at least one surfactant selected from the group consisting of C 12 -C 15 Pareth-7 and sorbitan monooleate; and
contacting the tampon with a mucosal surface to activate the composition on the tampon; and
removing the tampon, wherein upon removal, the soiled appearance of the tampon is reduced.
18. The method of claim 17 , wherein the high molecular weight polymer has a molecular weight of about 5,000,000 daltons.
19. The method of claim 17 , wherein the composition comprises from about 1% to about 60%, by weight, of the high molecular polymer.
20. The method of claim 17 , wherein once contacted with the mucosal surface, the absorbency of the tampon is reduced by less than 15%.