Siloxanyl materials for molded plastics

• US 8,053,539 B2
• Filed: 12/12/2006
• Issued: 11/08/2011
• Est. Priority Date: 06/30/2006
• Status: Active Grant

• Current Assignee: Johnson & Johnson Vision Care Incorporated (Johnson & Johnson), Toray Industries Incorporated
• Original Assignee: Johnson & Johnson Vision Care Incorporated (Johnson & Johnson), Toray Industries Incorporated
• Inventors: Nakamura, Masataka, Yokota, Mitsuru, Fujisawa, Kazuhiko
• Primary Examiner(s): Choi; Ling
• Assistant Examiner(s): WANG, CHUN CHENG
• Application Number:
  US11/609,677
• Publication Number:
  US 20080004401A1
• Time in Patent Office: 1,792 Days
• Field of Search: 526/279, 528/35
• US Class Current: 526/279
• CPC Class Codes: C08F 220/26 Esters containing oxygen in addition to the carboxy oxygen
• CPC Class Codes: C08F 230/08 containing silicon
• CPC Class Codes: C08G 77/045 containing less than 25 silicon atoms
• CPC Class Codes: C08G 77/14 containing silicon bound to oxygen-containing groups C08G77/045 takes precedence

Abstract

In one aspect, the invention relates to compositions comprising siloxanyl compounds comprising the structure:

or residues thereof. Such compositions can be suitable for producing molded articles, can be excellent in transparency, hydrophilicity, and oxygen permeability, and can have a low modulus of elasticity and/or an excellent optical quality, so as to be suitable for ophthalmic lenses such as contact lenses and intraocular lenses. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Claims

1. A composition comprising siloxanyl compounds comprising the structures:

2. The composition of claim 1, wherein the content of the compound in the composition is at least about 92% by weight.

3. The composition of claim 1, wherein an epoxide moiety or a diol moiety is substantially absent from the composition.

4. The composition of claim 1, wherein R¹ represents n-butyl and wherein R² to R⁷ independently represent C₁-C₄ alkyl.

5. The composition of claim 1, wherein R¹ represents n-butyl and wherein R² to R⁷ independently represent methyl.

9. A molded article, ophthalmic lens, or contact lens comprising the composition of claim 1.

6. A composition comprising a polymer comprising residues of:

7. The composition of claim 6, wherein the content of the polymer in the composition is at least about 92% by weight.

8. The composition of claim 6, wherein the polymer is a copolymer comprising residues of 2-hydroxyethyl methacrylate.

10. A molded article, ophthalmic lens, or contact lens comprising the composition of claim 6.

11. The composition of claim 6, wherein R¹ represents n-butyl and wherein R² to R⁷ independently represent C₁-C₄ alkyl.

12. The composition of claim 6, wherein R¹ represents n-butyl and wherein R² to R⁷ independently represent methyl.