GAS PERMEABLE OPHTHALMIC LENS MATERIAL AND GAS PERMEABLE OPHTHALMIC LENS OF SUCH MATERIAL

• US 20190094416A1
• Filed: 10/17/2017
• Published: 03/28/2019
• Est. Priority Date: 09/26/2017
• Status: Active Grant

• Current Assignee: Scienbizip Consulting (Shenzhen) Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: CHIEN, HSIU-WEN
• Granted Patent: US 10,605,957 B2
• Time in Patent Office: Days
• CPC Class Codes: C07F 7/04 Esters of silicic acids
• CPC Class Codes: C08G 77/26 nitrogen-containing groups
• CPC Class Codes: C08G 77/28 sulfur-containing groups
• CPC Class Codes: C08G 77/30 phosphorus-containing groups
• CPC Class Codes: C08L 83/04 Polysiloxanes
• CPC Class Codes: C08L 83/08 containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
• CPC Class Codes: G02B 1/043 Contact lenses

Abstract

A gas permeable ophthalmic lens material comprises a tetraethoxysilane and an ionic silane. The ionic silane comprises positive charges and negative charges. The lens made therefrom thus comprises positive and negative charges, thus the gas permeable ophthalmic lens is hydrophilic, and prevents adhesion of bacteria in allowing the surface of the human eye to breath. A gas permeable ophthalmic lens made of the gas permeable ophthalmic lens material is also provided.

Claims

1. A gas permeable ophthalmic lens material comprising:

a tetraethoxysilane; and

an ionic silane;

wherein the ionic silane comprises positive charges and negative charges.

2. The gas permeable ophthalmic lens material of claim 1, wherein the ionic silane is a zwitterionic silane.

3. The gas permeable ophthalmic lens material of claim 2, wherein the tetraethoxysilane has a mass percentage of about 68% to about 98.5% of the total mass of the gas permeable ophthalmic lens material, the zwitterionic silane has a mass percentage of about 1.5% to about 32% of the total mass of the gas permeable ophthalmic lens material.

4. The gas permeable ophthalmic lens material of claim 2, wherein the zwitterionic silane is selected from sulfobetainesilane, carboxybetainesilane, phosphorylcholinesilane, or any combination thereof.

5. The gas permeable ophthalmic lens material of claim 1, wherein the ionic silane comprises a positively charged molecule silane and a negatively charged molecule silane.

6. The gas permeable ophthalmic lens material of claim 5, wherein the tetraethoxysilane has a mass percentage of about 67.2% to about 98% of the total mass of the gas permeable ophthalmic lens material, the positively charged molecule silane has a mass percentage of about 0.8% to about 32% of the total mass of the gas permeable ophthalmic lens material, the negatively charged molecule silane has a mass percentage of about 0.8% to about 32% of the total mass of the gas permeable ophthalmic lens material.

7. The gas permeable ophthalmic lens material of claim 5, wherein the positively charged molecule silane is selected from 3-(trimethoxysilyl)propyl-N,N,N-trimethylammonium, N-(trimethoxysilylpropyl) ethylenediaminetriacetate, 4-(TRIMETHOXYSILYLETHYL)BENZYLTRIMETHYLAMMONIUM CHLORIDE, TETRADECYLDIMETHYL(3-TRIMETHOXYSILYLPROPYL)AMMONIUM CHLORIDE, or any combination thereof.

8. The gas permeable ophthalmic lens material of claim 5, wherein the negatively charged molecule silane is selected from carboxyethylsilanetriol, 3-(TRIHYDROXYSILYL)-1-PROPANESULFONIC ACID, TRIETHOXYSILYLPROPYLMALEAMIC ACID, 3-(TRIHYDROXYSILYL)PROPYL METHYLPHOSPHONATE, or any combination thereof.

9. A gas permeable ophthalmic lens formed with:

a gas permeable ophthalmic lens material, the gas permeable ophthalmic lens material comprising;

a tetraethoxysilane; and

an ionic silane;

wherein the ionic silane comprises a positive charge and a negative charge.

10. The gas permeable ophthalmic lens of claim 9, wherein the ionic silane is a zwitterionic silane.

11. The gas permeable ophthalmic lens of claim 10, wherein the tetraethoxysilane has a mass percentage of about 68% to about 98.5% of the total mass of the gas permeable ophthalmic lens material, the zwitterionic silane has a mass percentage of about 1.5% to about 32% of the total mass of the gas permeable ophthalmic lens material.

12. The gas permeable ophthalmic lens of claim 10, wherein the zwitterionic silane is selected from sulfobetainesilane, carboxybetainesilane, phosphorylcholinesilane, or any combination thereof.

13. The gas permeable ophthalmic lens of claim 9, wherein the ionic silane comprises a positively charged molecule silane and a negatively charged molecule silane.

14. The gas permeable ophthalmic lens of claim 13, wherein the tetraethoxysilane has a mass percentage of about 67.2% to about 98% of the total mass of the gas permeable ophthalmic lens material, the positively charged molecule silane has a mass percentage of about 0.8% to about 32% of the total mass of the gas permeable ophthalmic lens material, the negatively charged molecule silane has a mass percentage of about 0.8% to about 32% of the total mass of the gas permeable ophthalmic lens material.

15. The gas permeable ophthalmic lens of claim 13, wherein the positively charged molecule silane is selected from 3-(trimethoxysilyl)propyl-N,N,N-trimethylammonium, N-(trimethoxysilylpropyl) ethylenediaminetriacetate, 4-(TRIMETHOXYSILYLETHYL)BENZYLTRIMETHYLAMMONIUM CHLORIDE, TETRADECYLDIMETHYL(3-TRIMETHOXYSILYLPROPYL)AMMONIUM CHLORIDE, or any combination thereof.

16. The gas permeable ophthalmic lens of claim 13, wherein the negatively charged molecule silane is selected from carboxyethylsilanetriol, 3-(TRIHYDROXYSILYL)-1-PROPANESULFONIC ACID, TRIETHOXYSILYLPROPYLMALEAMIC ACID, 3-(TRIHYDROXYSILYL)PROPYL METHYLPHOSPHONATE, or any combination thereof.

17. The gas permeable ophthalmic lens of claim 9, wherein the gas permeable ophthalmic lens comprises following chemical structure:

18. The gas permeable ophthalmic lens of claim 9, wherein the gas permeable ophthalmic lens comprises following chemical structure: