Polymerisable materials which are based on hardenable siloxane compounds

US6566413B1 · kind B1 · utility

Assignee

• 3M ESPE AG · DE

Inventors

• Wolfgang Weinmann · Gilching, DE
• Joachim W. Zech · Kaufering, DE
• Oswald Gasser · Hanerau-Hademarschen, DE
• Rainer Guggenberger · Hanerau-Hademarschen, DE
• Gunther Eckhardt · Frieding, DE
• Peter Bissinger · Dießen, DE
• Wolfgang Soglowek · Dießen am Ammersee, DE

Key dates

• Filing date: Sep 19, 2001
• Grant date: May 20, 2003
• Expiry date: Sep 19, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F7/21
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to novel cyclic siloxane compounds of the following general formula (I): in which:n=0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 preferably 1, 2, 3, 4, 5;A=H or C1-C15 alk(en)yl, C3-C15 cycloalk(en)yl, C6-C12 aryl, C8-C18 alkaryl, where, in the said radicals, in each case one or more C atoms can be replaced by O, C═O, O(C═O), SiR2 and/or NR, R being an aliphatic radical with 1 to 7 C atoms, in which one or more C atoms can be replaced by O, C═O, and/or O(C═O);B=E or a linear, branched or polycyclic aliphatic- or aromatic-groups-containing hydrocarbon radical which links 2 to 10 of the cyclosiloxane radicals defined above, less B, to one another and contains 2 to 50 C atoms and additionally 0 to 30 other atoms from the group O, N, S, P, Si, Cl, F, Br, I and from which correspondingly 1 to 9, preferably 1 to 4 of the above defined cyclosiloxane radicals, less B, are pending;E=A or a polymerizable group G—Q—L, where on average up to 50% or less of the groups E correspond to representatives of A;G=C1-10 alk(en)ylene;Q=O, N—A or a di- or polyvalent linear, branched or cyclic alcohol, amine or aminoalcohol radical with 2 to 10 C atoms;L=an …