Heat-applicable and hardenable sealing compositions and its use

US4425389A · kind A · utility

Assignee

• Rutgerswerke Aktiengesellschaft · DE

Inventors

• Wolf-Dietrich Schollhorn · Grünstadt, DE
• Lothar Hockenberger · Ludwigshafen, DE

Key dates

• Filing date: Aug 16, 1982
• Grant date: Jan 10, 1984
• Expiry date: Aug 16, 2002

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31533
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A polysulfide sealing composition is described which contains, in addition to the hardening agents and optional fillers, softeners and other conventional additives, a mixture of a solid polysulfide rubber with terminal SH groups and a liquid polysulfide polymer with terminal SH groups, wherein the weight ratio of the respective solid and liquid polysulfide is 100:5 to 15. The composition may be used for the manufacture of insulating glass units.