Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
OPHTHALMIC COMPOSITION LIQUID AND METHOD OF USING THE SAME
Document Type and Number:
Japanese Patent JP2018028673
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve use feeling and safety of ophthalmic composition liquid for use in a contact lens.SOLUTION: Ophthalmic composition liquid according to the present invention improves a refractive index of a contact lens and contains: polyoxyethylene-polyoxypropylene glycol in which ratio EO/PO of an average degree of polymerization of ethylene oxide (EO) to an average degree of polymerization of propylene oxide (PO) falls within a range of 1.0 or greater and 5.0 or less; one or more selected from polyvalent carboxylic acid and polyvalent carboxylic acid; and an algefacient. The ophthalmic composition liquid has an IC50 value of 1.0% or greater, and concentration of dibutyl hydroxytoluene (BHT) in the composition liquid of less than 1.5 ppm. The ophthalmic composition liquid may be used for a soft contact lens and a hard contact lens, and more particularly, the ophthalmic composition liquid is more preferable to be used for a hard contact lens manufacture by a molding method.SELECTED DRAWING: None

Inventors:
TANIGAWA SADAYASU
Application Number:
JP2017193391A
Publication Date:
February 22, 2018
Filing Date:
October 03, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MENICON CO LTD
International Classes:
G02C13/00; A61K9/08; A61K31/045; A61K45/00; A61K47/10; A61K47/12; A61K47/18; A61K47/32; A61K47/36; A61P27/02; G02C7/04
Domestic Patent References:
JP2011021002A2011-02-03
JP2011246383A2011-12-08
JP2008009145A2008-01-17
JP2001192333A2001-07-17
JPH11258556A1999-09-24
JP2012198538A2012-10-18
Foreign References:
WO2009022379A12009-02-19
WO2009034602A12009-03-19
WO2010065686A12010-06-10
Attorney, Agent or Firm:
Aitec International Patent Office



 
Previous Patent: Stringed instrument

Next Patent: A method and a system which search for an objective space structure