Patent · US Active

Urea-containing silanes, process for preparation thereof and use thereof

US9388201B2 · kind B2 · utility

3Cited by

4References

16Claims

0Family size

Assignee

EVONIK DEGUSSA GMBH · DE

Inventors

Caren Röben
Ralph Moser · Glückstadt, DE
Stefanie Mayer · Rheinfelden (Baden), DE

Key dates

Filing date	May 13, 2015
Grant date	Jul 12, 2016
Priority date	—
Expiry date	May 13, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L91/06
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to urea-containing silanes of the formula Iwhich are prepared by, in a first step, reacting an aminosilane of the formula IIwith an isocyanate of the formula IIIand, in a second step, reacting the product from the first process step with sodium sulphide of the formula IVNa2S (IV)or in a first step, reacting an isocyanatosilane of the formula VIwith an amine of the formula VIIand, in a second step, reacting the product from the first process step with sodium sulphide of the formula IVNa2S (IV).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.