Claims
- 1. A method of using a copolymer of N-isopropyl-3-methylene-2-pyrrolidone and 2-hydroxyethylmethacrylate having an equilibrium water concentration of 36.5% by weight at room temperature in a transdermal delivery system for administration of a pharmaceutical.
- 2. A method of using a copolymer of N-isopropyl-3-methylene-2-pyrrolidone and 2-hydroxyethylmethacrylate having an equilibrium water concentration of 36.5% by weight at room temperature for sustained release dosage forms for administration of a pharmaceutical.
- 3. A method of using a copolymer of N-isopropyl-3-methylene-2-pyrrolidone and 2-hydroxyethylmethacrylate having an equilibrium water concentration of 36.5% by weight at room temperature in a soft contact lens.
- 4. A method of using a copolymer of N-isopropyl-3-methylene-2-pyrrolidone and 2-hydroxyethylmethacrylate having an equilibrium water concentration of 36.5% by weight at room temperature as a wound dressing.
- 5. A sustained release pharmaceutical composition comprising a pharmaceutical in combination with a copolymer N-isopropyl-3-methylene-2-pyrrolidone and 2-hydroxyethylmethacrylate having an equilibrium water concentration of 36.5% by weight at room temperature.
Parent Case Info
This is a divisional of U.S. application Ser. No. 347,630 filed May 5, 1989, now U.S. Pat. No. 4,931,510, which is a divisional of U.S. application Ser. No. 057,467 filed June 2, 1987, now U.S. Pat. No. 4,851,545 issued July 25, 1989.
US Referenced Citations (5)
Foreign Referenced Citations (1)
Number |
Date |
Country |
703307 |
May 1969 |
ZAX |
Divisions (2)
|
Number |
Date |
Country |
Parent |
347630 |
May 1989 |
|
Parent |
57467 |
Jun 1987 |
|