REDOX CURING DENTAL COMPOSITION
    3.
    发明申请

    公开(公告)号:US20220226198A1

    公开(公告)日:2022-07-21

    申请号:US17604483

    申请日:2020-04-17

    摘要: A redox curing dental composition comprising: a. one or more compounds having a radical polymerizable carbon-carbon double bond; b. a redox initiator system comprising a reducing agent which is a compound of the following formula (I): wherein R1 and R2 which may be the same or different, independently represent a C1-18 hydrocarbyl group, or R1 and R2 form together with the silicon atom to which they are bonded a 3 to 8-membered silicon-containing alicyclic ring, which groups R1 and/or R2 may be substituted with one to three substituents selected from the group consisting of a C1-6 alkoxy group, a halogen atom, or a carboxylic acid group; and (ii) an oxidizing agent adapted to oxidize the reducing agent of formula (I) in the absence of light for generating a radical capable of initiating radical polymerization of the one or more compounds having a radical polymerizable carbon-carbon double bond.

    DENTAL IMPRESSION MATERIAL
    5.
    发明申请

    公开(公告)号:US20210106503A1

    公开(公告)日:2021-04-15

    申请号:US16982094

    申请日:2019-03-07

    IPC分类号: A61K6/90 A61C13/15

    摘要: A photocurable dental impression material comprising: (a) a mixture of polymerizable silicone compounds each having two or more polymerizable (meth)acrylate groups, said mixture having a dynamic viscosity at 25° C. of from 1 to 100 Pas; (b) a filler; (c) a photo initiator system, wherein the mixture of polymerizable silicone compounds comprises based on the total weight of the mixture of polymerizable silicone compounds (a) 10 to 90 percent by weight of high-molecular polymerizable silicone compounds having a molecular weight in the range of from more than 4000 up to 10.000; and (b) 90 to 10 percent by weight of polymerizable silicone compounds having a molecular weight in the range of from 300 to 4000.

    PHOTOINITIATOR MODIFIED POLYACIDIC POLYMER

    公开(公告)号:US20210069070A1

    公开(公告)日:2021-03-11

    申请号:US16642259

    申请日:2018-08-30

    摘要: The present invention relates to an initiator modified polyacidic polymer having a covalently bonded initiator compound, and to a dental resin-modified glass ionomer composition comprising this polyacidic polymer. Furthermore, the present invention relates to a use of the initiator modified polyacidic polymer for the preparation of a dental composition.
    The covalently bonded initiator compound of the initiator modified polyacidic polymer may be any compound of a redox initiator system, a photoinitiator system, for example a Norrish type I or II photoinitiator, an electron donor component, a sensitizer component or a coinitiator component.