Contact lens cleaning material formed of a polymer

• US 5,919,742 A
• Filed: 07/28/1997
• Issued: 07/06/1999
• Est. Priority Date: 07/29/1996
• Status: Expired due to Fees

• Current Assignee: Menicon Company Limited
• Original Assignee: Menicon Company Limited
• Inventors: Tanikawa, Sadayasu, Tsuzuki, Akira
• Primary Examiner(s): HERTZOG, ARDITH E
• Application Number:
  US08/901,773
• Time in Patent Office: 708 Days
• Field of Search: 510/112-115, 510/475, 510/476, 510/403, 510/434, 510/445, 510/455, 510/383, 510/384-386
• US Class Current: 510/112
• CPC Class Codes: C11D 3/0078 Compositions for cleaning contact lenses, spectacles or lenses
• CPC Class Codes: C11D 3/3757 (Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions

Abstract

A cleaning material for a contact lens formed of a polymer which is obtained by polymerizing a polymeric composition including at least a nonionic surface active agent having a polymerizable unsaturated double bond, and a cross-linking agent having a plurality of polymerizable unsaturated double bonds.

Claims

1. A contact lens cleaning material in a solid form, said material being formed of a polymer obtained by polymerizing a polymeric composition including:

not less than 5 wt. % of a polyoxethylated nonionic surface active agent having an ethylenically unsaturated double bond, and 0.01 to 5 wt. % of a cross-linking agent having a plurality of ethylenically unsaturated double bonds.

2. A contact lens cleaning material according to claim 1, wherein said polymeric composition further includes 0.01 to 10 wt. % of a disinfectant having an ethylenically unsaturated double bond.

3. A contact lens cleaning material according to claim 2, wherein said disinfectant is included in said polymeric composition in an amount of 0.01-1% by weight.

4. A contact lens cleaning material according to claim 2, wherein said disinfectant is a quaternary ammonium salt having a polymerizable unsaturated double bond.

5. A contact lens cleaning material according to claim 1, wherein said nonionic surface active agent is included in said polymeric composition in an amount of 20-99.9% by weight.

6. A contact lens cleaning material according to claim 1, wherein said nonionic surface active agent is included in said polymeric composition in an amount of 50-99.9% by weight.

7. A contact lens cleaning material according to claim 1, wherein said cross-linking agent is included in said polymeric composition in an amount of 0.1-3% by weight.

8. A contact lens cleaning material according to claim 1, wherein said polymeric composition further includes a hydrophilic monomer having a polymerizable unsaturated double bond.

9. A contact lens cleaning material according to claim 1, wherein said polymeric composition is dissolved in a solvent and polymerized.

10. A contact lens cleaning material according to claim 1, having a content of an aqueous component in a range of 10-90%.

11. A contact lens cleaning material according to claim 1, further including a filler.

12. A contact lens cleaning material according to claim 1, wherein said polymer is in the form of a gel which contains an aqueous component.

13. A contact lens cleaning material according to claim 1, wherein said solid form is selected from the group consisting of a sheet, a plate and a sponge.