Silane mixtures and processes for preparation thereof

US11008441B2 · kind B2 · utility

Assignee

• Evonik Operations GmbH · DE

Inventors

• Caren Roeben · Essen, DE
• Ralph Moser · Glückstadt, DE
• Alexander Koepfer · Innerlehen, DE
• Sebastian Rosenstingl · Rheinfelden (Baden), DE
• Stefanie Mayer · Rheinfelden (Baden), DE
• Andre Hasse · Linnich, DE
• Frank Forster · Oberkirch, DE

Key dates

• Filing date: Nov 27, 2018
• Grant date: May 18, 2021
• Expiry date: Dec 13, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L9/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to silane mixtures comprising a silane of the formula I (R1)y(R2)3-ySi—R3—(S—R4)n—Sx—(R4—S)n—R3—Si(R1)y(R2)3-y  (I) and a silane of the formula II (R1)y(R2)3-ySi—R3—(S—R4)z—S—R3—Si(R1)y(R2)3-y  (II) where the molar ratio of silane of the formula I to silane of the formula II is 19:81-81:19. The silane mixture according to the invention can be prepared by mixing the silanes of the formula I and silanes of the formula II.