公开(公告)号：US20180221249A1

公开(公告)日：2018-08-09

申请号：US15747823

申请日：2016-07-27

Applicant: DENTSPLY SIRONA inc.

Inventor： Christoph P. FIK ,  SVEN POHLE ,  JOACHIM KLEE

IPC: A61K6/00 ,  A61K6/083

CPC classification number: A61K6/0023 ,  A61K6/0017 ,  A61K6/083 ,  C08L33/02 ,  C08L33/26

Abstract: The present invention relates to an aqueous dental composition having a pH of less than 7 as well as to the use of a stabilizer for the preparation of an aqueous dental composition having a pH of less than 7. In particular, the present invention relates to an aqueous dental composition having a pH of less than 7 comprising (i) one or more polymerizable compounds having at least one polymerizable double bond; (ii) a polymerization initiator system containing a) an 1,2-diketone photoinitiator compound having a light absorption maximum in the range from 300 to 500 nm; and b) a coinitiator compound; (iii) a stabilizer of the following formula (I) and/or (II), wherein the Rs, which may be the same or different, independently represent a branched C3-8 alkyl or alkenyl group, or a C3-8 cycloalkyl or cycloalkenyl group, R′ represents a hydrogen atom, a C1-6 alkyl or C2-6 alkenyl group, or a C1-6 fluoroalkyl or C2-6 fluoroalkenyl group, X represents a group selected from a C1-8 alkyl group or a C3-8 cycloalkyl group, and n is 0, 1 or 2; and a solvent mixture comprising an organic solvent and at least 1 percent by weight of water based on the total weight of the aqueous dental composition.