Hydrophilic polysiloxane macromonomer, and production and use of the same

• US 8,524,850 B2
• Filed: 03/05/2012
• Issued: 09/03/2013
• 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:
  US13/411,709
• Publication Number:
  US 20120184698A1
• Time in Patent Office: 547 Days
• Field of Search: None
• US Class Current: 528/32
• 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

PROBLEM TO BE SOLVED

To provide an ophthalmic lens, which can be more safely worn, that is, to provide a material, which is transparent and has high oxygen permeability and a high hydrophilic property, and to provide a novel monomer to be a raw material thereof.

SOLUTION

A hydrophilic polysiloxane macromonomer contains polyoxyethylene as a hydrophilic side chains in a polysiloxane main chain, wherein transparency, oxygen permeability, and hydrophilic 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. A macromonomer consisting of a macromonomer represented by a general formula (1):

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

3. The macromonomer according to claim 1, wherein n presented in the general formula (1) represents 5 to 20.

4. The macromonomer according to claim 1, wherein a and b, which are presented in the general formula (1), represent 25-160 and 3-10, respectively, and n represents 5-15.

5. The macromonomer according to claim 2, wherein n presented in the general formula (1) represents 5 to 20.

6. The macromonomer of claim 1, wherein m=0.

7. A purified hydrophilic polysiloxane macromonomer useful as a raw material for an ophthalmic lens, wherein said macromonomer is represented by a general formula (1):

8. The macromonomer according to claim 7, wherein a and b, which are presented in the general formula (1), represent 25-200 and 2-20, respectively.

9. The macromonomer according to claim 7, wherein n presented in the general formula (1) represents 5 to 20.

10. The macromonomer according to claim 7, wherein a and b, which are presented in the general formula (1), represent 25-160 and 3-10, respectively, and n represents 5-15.

11. The macromonomer according to claim 8, wherein n presented in the general formula (1) represents 5 to 20.