Title:
コンタクトレンズ用装着液
Document Type and Number:
Japanese Patent JP4837877
Kind Code:
B2
Abstract:
Contact lens wetting solutions for reducing friction between the contact lens and ocular tissues, and maintaining such effect for a long time, are disclosed. The wetting solution is composed only of a particular ratio of a lubricant composed of copolymer (A) obtained by polymerizing a monomer composition comprising 2-(meth)acryloyloxyethyl phosphorylcholine and alkyl(meth)acrylate, a buffer, an inorganic chloride, a preservative, a chelating agent, and water. The copolymer (A) has a weight average molecular weight of 100,000 to 1,000,000, and satisfies the formula 80<=NxR<=240, provided that 4<=N<=18 and 10%<=R<=60%, wherein N stands for the carbon number of the alkyl group in monomer Y constituting copolymer (A), and R stands for a molar fraction of the unit derived from monomer Y with respect to the sum of the units derived from monomers X and Y.
Inventors:
Motohiro Mitani
Ryota Ando
Hirofumi Irie
Ken Suzuki
Nobuo Nakabayashi
Kazuhiko Ishihara
Ryota Ando
Hirofumi Irie
Ken Suzuki
Nobuo Nakabayashi
Kazuhiko Ishihara
Application Number:
JP2002520832A
Publication Date:
December 14, 2011
Filing Date:
August 22, 2001
Export Citation:
Assignee:
NOF CORPORATION
Nobuo Nakabayashi
Kazuhiko Ishihara
Nobuo Nakabayashi
Kazuhiko Ishihara
International Classes:
A61K31/80; A61K9/08; A61K47/02; A61K47/18; A61K47/34; A61L12/14; A61P27/02; C11D3/00; C11D3/02; C11D3/37; C11D3/48; G02C13/00
Domestic Patent References:
| JP2000098310A | 2000-04-07 | |||
| JPH11335301A | 1999-12-07 |
Attorney, Agent or Firm:
Hajime Sakai