Hydrophilic polysiloxane macromonomer, and production and use of the same

• US 8,129,442 B2
• Filed: 02/06/2009
• Issued: 03/06/2012
• Est. Priority Date: 02/08/2008
• Status: Active Grant

• Current Assignee: Coopervision International Limited (The Cooper Cos., Inc.)
• Original Assignee: Coopervision International Holding Company LP (The Cooper Cos., Inc.)
• Inventors: Ueyama, Hiroyuki, Ikawa, Seiichiro, Iwata, Junichi
• Primary Examiner(s): ZIMMER, MARC S
• Application Number:
  US12/366,670
• Publication Number:
  US 20090234089A1
• Time in Patent Office: 1,124 Days
• Field of Search: None
• US Class Current: 523/107
• CPC Class Codes: C08F 283/12 on to polysiloxanes
• CPC Class Codes: C08F 290/06 Polymers provided for in subclass C08G
• CPC Class Codes: C08F 290/061 Polyesters; Polycarbonates
• CPC Class Codes: C08F 290/068 Polysiloxanes
• CPC Class Codes: C08F 8/42 Introducing metal atoms or metal-containing groups
• CPC Class Codes: C08G 77/38 Polysiloxanes modified by chemical after-treatment C08G77/045 takes precedence
• CPC Class Codes: C08G 77/46 containing polyether sequences
• CPC Class Codes: C08L 51/085 on to polysiloxanes
• CPC Class Codes: C08L 83/12 containing polyether sequences
• CPC Class Codes: G02B 1/043 Contact lenses

Abstract

A hydrophilic polysiloxane macromonomer containing polyoxyethylene as a hydrophilic side chains pendant to a polysiloxane main chain for imparting transparency, oxygen permeability, and hydrophilic properties to a contact lens is disclosed. The properties of the material are controlled by regulating the length of the polysiloxane main chain, the length of the hydrophilic polyoxyethylene side chains, and the number of the side chains.

Claims

1. An ophthalmic lens obtained by copolymerizing a hydrophilic polysiloxane macromonomer with one or more polymerizable monomers, wherein said hydrophilic polysiloxane macromonomer is represented by a general formula (1):

2. The ophthalmic lens according to claim 1, wherein a and b in the general formula (1) are 25-200 and 2-20, respectively.

3. The ophthalmic lens according to claim 1, wherein n in the general formula (1) is 5 to 20.

4. The ophthalmic lens according to claim 2, wherein n in the general formula (1) is 5 to 20.

5. The ophthalmic lens according to claim 1, wherein a and b in the general formula (1) are 25-160 and 3-10, respectively, and n is 5-15.

6. An ophthalmic lens material obtained by copolymerizing a hydrophilic polysiloxane macromonomer with one or more polymerizable monomers, wherein said hydrophilic polysiloxane macromonomer is represented by a general formula (1):

7. An ophthalmic lens comprising the ophthalmic lens material according to claim 6.

8. A method of producing a composition suitable for use as a component in the manufacture of an ophthalmic lens having high oxygen permeability and high hydrophilicity, said composition consisting essentially of a polydisperse hydrophilic polysiloxane macromonomer represented by general formula (1):

9. A method of producing a composition suitable for use as a component in the manufacture of an ophthalmic lens having high oxygen permeability and high hydrophilicity, said composition consisting essentially of a polydisperse hydrophilic polysiloxane macromonomer represented by general formula (1):