1,2,6-Thiadiazine-3,5-dione-1,1-dioxides and their use as polymerization accelerators

US4443587A · kind A · utility

Assignee

• Abitz, Morf, Gritschneder · DE

Inventors

• Werner Schmitt · Starnberg, DE
• Robert Purrmann · Starnberg, DE
• Peter Jochum · Meiningen, AT
• Heinz-Joachim Hubner · Herrsching am Ammersee, DE
• Bernd Burger · Murnau am Staffelsee, DE

Key dates

• Filing date: Feb 18, 1982
• Grant date: Apr 17, 1984
• Expiry date: Feb 18, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2/40
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

1,2,6-Thiadiazine-3,5-dione-1,1-dioxides of the general formula ##STR1## wherein each R and R.sub.3 independently may be substituted or unsubstituted alkyl, alkenyl or substituted cycloalkyl are described. These compounds, as well as those wherein the R substituents additionally may be cycloalkyl or substituted or unsubstituted aryl, are useful as accelerators for the peroxidic polymerization of ethylenically unsaturated compounds, such as methacrylic acid compounds, and have particular utility in dental compositions.