Medical devices having homogeneous charge density and methods for making same
US-9170349-B2 · Oct 27, 2015 · US
Non-reactive, hydrophilic polymers having terminal siloxanes and methods for making and using the same
US9522980B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9522980-B2 |
| Application number | US-201113100473-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 4, 2011 |
| Priority date | May 6, 2010 |
| Publication date | Dec 20, 2016 |
| Grant date | Dec 20, 2016 |
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Abstract
Official abstract text for this publication.
The present invention relates to compositions comprising at least one stable, near-monodisperse, non-reactive hydrophilic polymer comprising in said polymer's backbone, a hydrophilic segment having a degree of polymerization of about 10 to about 1000, and a linear silicone segment at least one terminal end of said non-reactive hydrophilic polymer, wherein said silicone segment comprises between about 6 and about 200 siloxy units, and said non-reactive hydrophilic polymer is associated, via the linear silicone block with a silicone hydrogel. The non-reactive hydrophilic polymers may be incorporated into the formulation from which the silicone hydrogel is made or may be contacted with the silicone hydrogel post formation.
First claim
Opening claim text (preview).
We claim: 1. An ophthalmic device comprising a silicone-containing polymer and at least one stable, non-reactive hydrophilic polymer comprising in said non-reactive hydrophilic polymer's backbone, a hydrophilic segment having a degree of polymerization of about 500 to about 10,000, and a linear silicone segment on at least one terminal end of said non-reactive hydrophilic polymer, wherein said silicone segment comprises between about 6 and about 20 siloxy units, wherein said non-re…
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- C08L51/085Primary
Chemistry & Metallurgy · mapped topic
Physics · mapped topic
Chemistry & Metallurgy · mapped topic
Physics · mapped topic
Chemistry & Metallurgy · mapped topic
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Frequently asked questions
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- What does patent US9522980B2 cover?
- The present invention relates to compositions comprising at least one stable, near-monodisperse, non-reactive hydrophilic polymer comprising in said polymer's backbone, a hydrophilic segment having a degree of polymerization of about 10 to about 1000, and a linear silicone segment at least one terminal end of said non-reactive hydrophilic polymer, wherein said silicone segment comprises between…
- Who is the assignee on this patent?
- Scales Charles, Venkatasubban Kunisi, Mahadevan Shivkumar, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification C08L51/085. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 20 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).