23-05-2013 дата публикации
Номер: US20130125786A1
A method is provided for sterilization of a polymerizable monomer, in which the mixture contains at least the polymerizable monomer, a compound (a), and a compound (b). Compound (a) is selected from the group of compounds (a1), compounds (a2), and compounds (a3), wherein compounds (a1) are represented by general formula (I): 2. The method according to claim 1 , wherein the fraction of compound (b) in the mixture is no more than 2% by weight claim 1 , relative to the total weight of the mixture.3. The method according to claim 1 , wherein the polymerizable monomer is a monomer for radical polymerization.4. The method according to claim 1 , wherein compound (a) is β-propiolactone.5. The method according to claim 1 , wherein the polymerizable monomer and compound (b) are the same compound.6. The method according to claim 1 , wherein the ratio of the quantity of compound (b) claim 1 , n claim 1 , in the mixture to the quantity of compound (a) claim 1 , n claim 1 , in the mixture is represented by the in equation n/n>0.5.9. The mixture according to claim 7 , wherein the polymerizable monomer is a monomer for radical polymerization.10. The mixture according to claim 7 , wherein compound (a) is β-propiolactone.11. The mixture according to claim 8 , wherein compound (c) is selected from the group consisting of 3-hydroxypropionic acid and 3-hydroxypropionic acid esters.12. The mixture according to claim 7 , wherein the mixture contains a polymer soluble in the polymerizable monomer.13. The mixture according to claim 7 , wherein the mixture contains a polymer insoluble in the polymerizable monomer.14. A kit for producing bone cement claim 8 , the kit comprising at least a paste A and a paste B claim 8 , wherein at least one of pastes A and B contains a mixture according to .15. The kit according to claim 14 , wherein paste A and paste B are present in a first package and a second package claim 14 , respectively.16. A bone cement paste comprised of a mixture according to . The ...
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