Patent ID: 9345811
Filing Date: 2016-05-24
CPC Classification: A61K,A61L,A61P,C08F

Claim Text:
1. A medical antimicrobial composition comprising an ammonium group-containing polymer compound dispersed in a siloxanyl structure-containing polymer, and the medical antimicrobial composition has a N/OH ratio of 0.001 to 0.5, wherein OH is the number of hydroxyl groups bonded to the carbon atoms in the medical antimicrobial composition and N is the number of ammonium nitrogens, the ammonium group-containing polymer compound being selected from the group consisting of: wherein in formulae (h) and (i), R8, R9, and R10 are respectively and independently selected from the group consisting of a substituted or non-substituted alkyl group with 1 to 20 carbon atoms and a substituted or non-substituted aryl group with 6 to 20 carbon atoms; R11 is hydrogen or a methyl group; Z is O or NH; and X− is an anion, and wherein after a surface of the medical antimicrobial composition has been ultrasonically washed with water, the ammonium group-containing polymer compound contained in the medical antimicrobial composition is extractable from the composition using an organic solvent.