Patent · US Active

Amino group terminated impact strength modifier and use thereof in epoxy resin compositions

US9212251B2 · kind B2 · utility

3Cited by

3References

24Claims

0Family size

Assignee

SIKA TECHNOLOGY AG · CH

Inventors

Karsten Frick · Birmenstorf, CH
Jurgen Finter · Glückstadt, DE
Andreas Kramer · Zürich, CH
Ulrich Gerber · Schlieren, CH

Key dates

Filing date	Sep 4, 2012
Grant date	Dec 15, 2015
Priority date	—
Expiry date	Sep 4, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L63/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present disclosure relates to impact strength modifiers, the derivative products thereof, and the use thereof in producing two-component epoxy resin compositions. The disclosure in particular relates to amino group terminated impact strength modifiers prepared by reacting a polyurethane prepolymer having isocyanate groups, a primary diamine, and optionally at least one Michael acceptor. The two-component epoxy resin compositions thus formulated are characterized by a great increase in impact strength while retaining an acceptable tensile shear strength. The impact strength modifiers according to the disclosure and the epoxy resin compositions comprising same are in particular suitable for vehicle manufacturing.

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