The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 15, 2015
Filed:
Sep. 04, 2012
Karsten Frick, Remetschwil, CH;
Jürgen Finter, Zürich, CH;
Andreas Kramer, Zürich, CH;
Ulrich Gerber, Uitikon-Waldegg, CH;
Karsten Frick, Remetschwil, CH;
Jürgen Finter, Zürich, CH;
Andreas Kramer, Zürich, CH;
Ulrich Gerber, Uitikon-Waldegg, CH;
SIKA TECHNOLOGY AG, Baar, CH;
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.