Composition which is suitable for producing polyurethane foams and contains at least one HFO blowing agent

US10023679B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Michael Klostermann · Essen, DE
• Joachim Venzmer · Essen, DE
• Christian Eilbracht · Herne, DE
• Martin Glos · Borken, DE
• Carsten Schiller · Mülheim an der Ruhr, DE

Key dates

• Filing date: Dec 5, 2014
• Grant date: Jul 17, 2018
• Expiry date: Jan 20, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2483/12
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to compositions which are suitable for producing polyurethane foams and contain at least one polyol component, at least one blowing agent, a catalyst which catalyzes the formation of a urethane or isocyanurate bond, a silicon-containing foam stabilizer and optionally further additives and optionally an isocyanate component, characterized in that they contain at least one unsaturated halogenated hydrocarbon as blowing agent and additionally at least one surfactant TD which does not have a silicon atom and has an HLB of less than 10, where the proportion of the sum of the surfactants TD in the composition is from 0.05 to 20 parts by mass per 100 parts by mass of polyol components, a process for producing polyurethane and polyisocyanurate foams, in particular rigid foams, starting out from these polyol compositions, the use of the foams, in particular as insulation material, and also the insulation materials themselves.