Title:
【発明の名称】コンタクトレンズ並びにその製造方法及びその素材
Document Type and Number:
Japanese Patent JP2604805
Kind Code:
B2
Abstract:
A polymer is prepared by forming a mixture of 3-methacryloxypropytris(trimethylsiloxy) silane, methacrylic acid, cyclohexylmethacrylate, 2-hydroxypropylmethacrylate, m,p-styrylethyltrimethoxysilane, methyl methacrylate and a cross linker. A polymerization initiator is added to the mixture, and UV or thermal energy is supplied so that the mixture polymerizes to form a polymer that is transparent, hard, machinable and oxygen permeable. The polymer is cut into lenses, and the lenses are treated with acetyl chloride or another suitable chemical so that their surfaces become hydrophilic. The result is oxygen-permeable, hydrophilic, daily and extended-wear, hard contact lenses.
Inventors:
Richard Wyes Chen
Application Number:
JP14990688A
Publication Date:
April 30, 1997
Filing Date:
June 17, 1988
Export Citation:
Assignee:
Ocular Technologies Inc.
International Classes:
B29D11/00; C08F30/08; C08F290/00; G02B1/04; C08F299/08; G02C7/04; (IPC1-7): G02C7/04; B29D11/00; C08F299/08
Attorney, Agent or Firm:
Sadaaki Kambara