Patent · US Active

Curing agent mixture

US11254819B2 · kind B2 · utility

3Cited by

34References

22Claims

0Family size

Assignee

Evonik Operations GmbH · DE

Inventors

Markus Hallack · Schermbeck, DE
Mona Seyfried · Coburg, DE
Berend-Jan de Gans · Mülheim an der Ruhr, DE
Florian Düllmann · Hagen, DE
Sascha Herrwerth · Essen, DE

Key dates

Filing date	Oct 26, 2020
Grant date	Feb 22, 2022
Priority date	—
Expiry date	Oct 26, 2040

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K2200/0685
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A curing agent mixture is for coatings that cure at room temperature. The curing agent mixture can include (A) 10-60% by weight, preferably 20-60% by weight, more preferably 30-50% by weight, of a polysiloxane, (B) 40-90% by weight, preferably 40-80% by weight, more preferably 40-70% by weight, of an amino-functional alkoxysilane and (C) 1-10% by weight, preferably 2-7% by weight, more preferably 3-5% by weight, of a guanidine compound. The stated amounts of components (A), (B), and (C) add up to 100% by weight and are based on the curing agent mixture.

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