Ophthalmic compositions comprising polyether substituted polymers
US-9297928-B2 · Mar 29, 2016 · US
US12049606B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12049606-B2 |
| Application number | US-202117546434-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 9, 2021 |
| Priority date | Jan 12, 2021 |
| Publication date | Jul 30, 2024 |
| Grant date | Jul 30, 2024 |
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The present invention relates to borate and phosphate containing compositions, especially eye care compositions, achieving physiologically compatible pH and tonicity as well as good bacteriostatic properties. Methods of using the compositions of the present invention are also disclosed.
Opening claim text (preview).
What is claimed is: 1. A composition, comprising: a. from about 0.1% w/v to less than or equal to about 0.6% w/v of a borate compound; b. from about 0.3% w/v to about 0.9% w/v of a phosphate compound; and c. ophthalmologically acceptable carrier wherein the ratio of the phosphate compound to the borate compound is at least about 1.5:1 on a weight basis; and wherein the composition is free of preservatives. 2. The composition of claim 1 wherein the composition comprises from about 0.2% w/v to less than or equal to 0.5% w/v of a borate compound. 3. The composition of claim 2 wherein the composition comprises from about 0.25% w/v to less than or equal to 0.45% w/v of a borate compound. 4. The composition of claim 3 wherein the composition comprises from about 0.25% w/v to less than or equal to 0.4% w/v of a borate compound. 5. The composition of claim 1 wherein the composition comprises from about 0.4% w/v to about 0.85% w/v of a phosphate compound. 6. The composition of claim 5 wherein the composition comprises from about 0.5% w/v to about 0.8% w/v of a phosphate compound. 7. The composition of claim 1 wherein the ratio of the phosphate compound to the borate compound is at least about 2.5:1 on a weight basis. 8. The composition of claim 1 wherein the ratio of the phosphate compound to the boric acid compound is from about 1.5:1 to about 3:1 on a weight basis. 9. The composition of claim 1 wherein the ratio of the phosphate compound to the boric acid compound is from about 2:1 to about 3:1 on a weight basis. 10. The composition of claim 1 further comprising a demulcent polymer. 11. The composition of claim 10 , wherein the demulcent polymer is selected from block copolymers of polyethyleneoxide (PEO) and polypropyleneoxide (PPO), polyvinyl alcohol, polyvinyl pyrrolidone, polyacrylic acid, polyethers, hyaluronic acid and hyaluronic acid derivatives, chitosan, polysorbates, dextrans, cellulosic derivatives, acyclic polyamides, salts thereof and mixture thereof. 12. The composition of claim 1 further comprising additional components selected from cleaning agents, wetting agents, nutrient agents, therapeutic agent, sequestering agents, viscosity builders, contact lens conditioning agents, antioxidants, and the like and mixtures thereof.
Solvents · CPC title
Phosphates, including polyphosphates · CPC title
Salts · CPC title
Acids · CPC title
Biocides, antimicrobial agents, antiseptic agents · CPC title
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