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    Dental composition
    1.
    发明授权
    Dental composition 有权

    公开(公告)号：US10278901B2

    公开(公告)日：2019-05-07

    申请号：US15323161

    申请日：2015-07-02

    Applicant: DENTSPLY SIRONA Inc.

    Inventor： Joachim Klee

    IPC: A61K6/087 ,  C07D301/16 ,  C07D303/23 ,  C08L63/00 ,  A61K6/00 ,  C08G59/06 ,  C08G59/24 ,  C08G59/32 ,  C08G59/50

    Abstract: Dental composition comprising(a) at least two di- or polyepoxides having 2 to 5 epoxide groups and having a molecular weight of from 200 to 700 Da, or a macromonomeric reaction product obtainable by reacting the diepoxide with a dicarboxylic acid in a molar ratio [diepoxide]/[dicarboxylic acid] of at least 2; (b) one or more primary monoamines and/or disecondary diamines; (c) optionally one or more aliphatic polyamines; (d) a particulate filler, wherein the molar ratio of epoxide groups in component (a) to the N—H bonds in component (b) and (c) [epoxide(a)]/[N—H(b),(c)] is in the range of from 0.9 to 1.1; wherein the di- or polyepoxide having 2 to 5 epoxide groups is a compound of the following formula (I): A(BZm)n  (I) wherein A represents an n-valent organic moiety optionally having 1 to 10 heteroatoms selected from oxygen atoms and sulfur atoms; and B represents an m+1-valent organic moiety, Z is an epoxide group which may have a substituent, m which are independent from each other represent an integer of at least 1; and n is an integer of from 1 to 5; wherein the m are selected so that 2 to 5 epoxide groups are present; wherein the composition does not contain any 2,2-bis-(4-hydroxyphenyl)-propane, or 2,2-bis-(4-hydroxyphenyl)-methane.

    Dental adhesive
    2.
    发明授权
    Dental adhesive 有权

    公开(公告)号：US10548817B2

    公开(公告)日：2020-02-04

    申请号：US15747823

    申请日：2016-07-27

    Applicant: DENTSPLY SIRONA Inc.

    Inventor： Christoph P. Fik ,  Sven Pohle ,  Joachim Klee

    IPC: A61K6/083 ,  C08L33/02 ,  A61K6/00 ,  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.

    Dental composition
    8.
    发明授权
    Dental composition 有权

    公开(公告)号：US10596078B2

    公开(公告)日：2020-03-24

    申请号：US16357862

    申请日：2019-03-19

    Applicant: DENTSPLY SIRONA Inc.

    Inventor： Joachim Klee

    IPC: A61K6/087 ,  A61K6/00 ,  C08G59/50 ,  C08G59/32 ,  C08G59/24 ,  C08G59/06 ,  C08L63/00 ,  C07D303/23 ,  C07D301/16

    Abstract: Dental composition comprising (a) at least two di- or polyepoxides having 2 to 5 epoxide groups and having a molecular weight of from 200 to 700 Da, or a macromonomeric reaction product obtainable by reacting the diepoxide with a dicarboxylic acid in a molar ratio [diepoxide]/[dicarboxylic acid] of at least 2; (b) one or more primary monoamines and/or disecondary diamines; (c) optionally one or more aliphatic polyamines; (d) a particulate filler, wherein the molar ratio of epoxide groups in component (a) to the N—H bonds in component (b) and (c) [epoxide(a)]/[N—H(b),(c)] is in the range of from 0.9 to 1.1; wherein the di- or polyepoxide having 2 to 5 epoxide groups is a compound of the following formula (I): A(BZm)n  (I) wherein A represents an n-valent organic moiety optionally having 1 to 10 heteroatoms selected from oxygen atoms and sulfur atoms; and B represents an m+1-valent organic moiety, Z is an epoxide group which may have a substituent, m which are independent from each other represent an integer of at least 1; and n is an integer of from 1 to 5; wherein the m are selected so that 2 to 5 epoxide groups are present; wherein the composition does not contain any 2,2-bis-(4-hydroxyphenyl)-propane, or 2,2-bis-(4-hydroxyphenyl)-methane.

    AQUEOUS DENTAL GLASS IONOMER COMPOSITION
    10.
    发明申请
    AQUEOUS DENTAL GLASS IONOMER COMPOSITION 审中-公开

    公开(公告)号：US20170296441A1

    公开(公告)日：2017-10-19

    申请号：US15486335

    申请日：2017-04-13

    Applicant: DENTSPLY SIRONA Inc.

    Inventor： Caroline RENN ,  Oliver Elsner ,  Maximilian Maier ,  Florian Szillat ,  Joachim Klee ,  Christoph Weber ,  Uwe Walz ,  Christian Scheufler ,  Helmut Ritter ,  Andrew Lichkus ,  Xiaoming Jin

    IPC: A61K6/083

    CPC classification number: A61K6/0835 ,  C08L33/00 ,  C08L33/10 ,  C08L33/08

    Abstract: The present disclosure relates to an aqueous dental glass ionomer composition comprising a reactive particulate glass, a water-soluble, polymerizable polymer which is reactive with the particulate glass in a cement reaction, a hydrolysis-stable, water-soluble monomer having a single polymerizable double bond and optionally a carboxylic acid group or hydroxyl group; and a polymerization initiator system, wherein the polymerizable polymer is obtainable by a process comprising a step of polymerizing a mixture comprising a first polymerizable monomer comprising at least one optionally protected carboxylic acid group and a first polymerizable organic moiety, and optionally a second copolymerizable monomer comprising one or more optionally protected primary and/or secondary hydroxyl and/or amino group(s) and a second polymerizable organic moiety, for obtaining an water-soluble polymer; a step of coupling to the water-soluble polymer a compound having a olymerizable moiety and a functional group reactive with an optionally protected carboxylic acid group of repeating units derived from the first polymerizable monomer or an optionally protected hydroxyl and/or amino group of repeating units derived from the second copolymerizable monomer in the water-soluble polymer obtained in step a), wherein the optionally protected carboxylic acid group and the optionally protected hydroxyl and/or amine group are deprotected, so that polymerizable pendant groups are linked to the backbone by ester groups, urethane groups and/or amide groups, and, optionally, a step of deprotecting the protected carboxylic acid group for obtaining a polymerizable polymer.

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