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DENTAL COMPOSITION
专利权人:
DENTSPLY SIRONA Inc.
发明人:
Joachim KLEE
申请号:
US16357862
公开号:
US20190209440A1
申请日:
2019.03.19
申请国别(地区):
US
年份:
2019
代理人:
摘要:
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)whereinA represents an n-valent organic moiety optionally having 1 to 10 heteroatoms selected from oxygen atoms and sulfur atoms; andB 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; andn 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.
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