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Patent Searching and Data


Title:
CONTACT LENS COMPOSITION
Document Type and Number:
Japanese Patent JP2015227909
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To newly provide a contact lens composition capable of effectively achieving all of (1) further improvement in wettability of a contact lens, (2) prevention of lipid adhesion to the contact lens without disturbing a structure of a lacrimal fluid, and (3) shape stability of the contact lens.SOLUTION: The contact lens composition is characterized by containing hypromellose having polydispersity of 8 or higher. Meanwhile, a weight average molecular weight of the hypromellose is preferably 50,000 or higher and 1,000,000 or lower. In addition, a substitution degree of a methoxy group in the hypromellose is preferably 27.0 to 30.0% and a substitution degree of a hydroxypropoxyl group in the hypromellose is preferably 4.0 to 12.0%. Moreover, it is preferable that the contact lens composition further contains taurine.

Inventors:
HAMAGUCHI SHINICHI
TANIGAWA SADAYASU
TSUKAMOTO KEIJI
Application Number:
JP2014112420A
Publication Date:
December 17, 2015
Filing Date:
May 30, 2014
Export Citation:
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Assignee:
MENICON CO LTD
International Classes:
G02C13/00; A61K9/08; A61K47/20; A61K47/38
Attorney, Agent or Firm:
Yoshitaka Kasai
Nakane Mie