11-04-2013 дата публикации
Номер: US20130089505A1
Alkyl cyanoacrylate compositions and methods for making those compositions, utilizing high purity monomeric starting materials, formed into more viscous oligomers, and combined with a plasticizer and inhibitor to provide a single-container, storage stable medical cyanoacrylate. 1. A medical grade composition suitable for application to or in the human body , comprising a mixture of:(a) a polymerizable alkyl cyanoacrylate oligomer, wherein said polymerizable alkyl cyanoacrylate oligomer has a viscosity of from 10 centipoise to 30 centipoise;(b) at least one polymerization inhibitor;(c) a contrast agent; and(d) a plasticizer,wherein said composition is sealed in a single container and is stable for more than one month at room temperature, and is adapted to polymerize in vivo.2. The composition of claim 1 , wherein the polymerizable alkyl cyanoacrylate oligomer is selected from the group consisting of 2-hexyl cyanoacrylate oligomer claim 1 , n-hexyl cyanoacrylate oligomer claim 1 , pentyl cyanoacrylate oligomer claim 1 , heptyl cyanoacrylate oligomer claim 1 , and octyl cyanoacrylate oligomer.3. The composition of claim 1 , wherein the polymerizable alkyl cyanoacrylate oligomer is n-hexyl cyanoacrylate oligomer.4. The composition of claim 1 , wherein the inhibitor is selected from the group consisting of 4-methoxyphenol claim 1 , 2 claim 1 ,6-di-tert-butyl-4-methylphenol claim 1 , hydroquinone claim 1 , phosphoric acid claim 1 , sulfur dioxide (SO) claim 1 , and any combination thereof.5. The composition of claim 4 , wherein the inhibitor is a mixture of 4-methoxyphenol claim 4 , 2 claim 4 ,6-di-tert-butyl-4-methylphenol claim 4 , and sulfur dioxide.6. The composition of claim 1 , wherein the plasticizer is tri-n-butyl O-acetylcitrate.7. The composition of claim 1 , wherein the contrast agent is selected from the group consisting of gold claim 1 , platinum claim 1 , tantalum claim 1 , titanium claim 1 , tungsten claim 1 , barium sulfate claim 1 , and combinations ...
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