Synergistic combinations of platinum compounds and rhodium compounds as catalysts in hydrosilylations

US11180613B2 · kind B2 · utility

Assignee

• HERAEUS DEUTSCHLAND GMBH & CO. KG · DE

Inventors

• Walter Lässig · Gelnhausen, DE
• Weiwen Dong · Hanau, DE
• Richard Walter · Santa Clara, US
• Detlef Gaiser · Hanau, DE
• Jörg Fuchs Alameda · Bad Orb, DE

Key dates

• Filing date: Dec 19, 2017
• Grant date: Nov 23, 2021
• Expiry date: Dec 19, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G77/58
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Composition for use as catalyst in hydrosilylations, comprising at least one platinum compound selected from the group consisting of Pt[(Me2SiCH═CH2)2O]2 and Pt2[(Me2SiCH═CH2)2O]3 and at least one rhodium compound selected from the group consisting of Rh(acac)(CO)2, Rh2(CO)4Cl2, [Rh(cod)Cl]2, Rh(acac)(cod), RhH(CO)(PPh3)3, Rh(CO)(PPh3)(acac), RhCl(CO)(PPh3)2, and Rh-2-ethylhexanoate at a molar ratio of Pt/Rh in the range of 0.1 to 100.