| US 7,387,783 B2 | ||
| Keratotic plug remover | ||
| Takahiro Osumi, Hannan (Japan); and Yasuyuki Murase, Yoshikawa (Japan) | ||
| Assigned to Kao Corporation, Tokyo (Japan) | ||
| Filed on Jul. 12, 2004, as Appl. No. 10/888,587. | ||
| Application 10/888587 is a continuation of application No. 09/986538, filed on Nov. 09, 2001. | ||
| Application 09/986538 is a continuation of application No. PCT/JP00/03026, filed on May 11, 2000. | ||
| Claims priority of application No. 11-131046 (JP), filed on May 12, 1999. | ||
| Prior Publication US 2004/0241136 A1, Dec. 02, 2004 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. A61K 8/02 (2006.01); A61K 31/74 (2006.01); A01N 25/24 (2006.01); A01N 25/34 (2006.01); A61F 13/00 (2006.01) | ||
| U.S. Cl. 424—401 [424/402; 424/443; 424/445; 424/449; 424/77; 424/78.03] | 21 Claims |
| 1. A keratotic plug remover comprising:
(i) a polymer (A) which is polystyrene sulfonic acid or a salt thereof; and
(ii) a nonionic polymer (B) which is polyvinylpyrrolidone,
wherein polymer (A) and nonionic polymer (B) are soluble in water, and a mixing proportion of said polymer (A) to nonionic
polymer (B) is 30:70 to 70:30 in terms of a weight ratio of (A) to (B).
|