The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 28, 1980
Filed:
Apr. 26, 1979
Aizo Yamauchi, Atsugi, JP;
Yasuo Matsuzawa, Machida, JP;
Sadayoshi Kamiya, Nagoya, JP;
Keisuke Nishioka, Yao, JP;
Yoshiaki Hara, Kashiwara, JP;
Shogo Matsushima, Nara, JP;
Director-General of the Agency of Industrial Science and Technology, Tokyo, JP;
Nihon, Tenganyaku Kenkyusho K.K., Aichi, JP;
Abstract
The invention presents a high-viscosity eye lotion with which lasting curve effects can be obtained with no feeling of foreign bodies to the eye as in the conventional eye salves used in treating eyes. The high-viscosity eye lotion of the invention comprises a swollen hydrated gel of a crosslinked polyvinyl alcohol and an eye-disease curative active ingredient contained therein. It is prepared by irradiating an aqueous solution of a polyvinyl alcohol with an ionizing radiation to such an extent that the polyvinyl alcohol is crosslinked to give a hydrated gel with an equilibrium swelling ratio in the range from 70 to 100 by weight and then dipping the hydrated gel in an aqueous solution of the eye-disease curative active agent.