Patents by Inventor Werner Gruber

Werner Gruber has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Anaerobically hardening adhesives and sealants containing a hydrazide accelerator
    Patent number: 3984385
    Abstract: Organic sulfonic acid hydrazides are accelerators for aerostable anaerobically-setting adhesive compositions. They can be used with stabilizers. Preferred hydrazides of this group are the aryl sulfonic acid hydrazides, for example benzene sulfonic acid hydrazide. These provide rapid setting time with good ultimate strength, and have little adverse effect on the storage stability of the compounds when access of air is permitted.
    Type: Grant
    Filed: August 25, 1975
    Date of Patent: October 5, 1976
    Assignee: Henkel & Cie G.m.b.H.
    Inventors: Werner Gruber, Joachim Galinke, Jurgen Keil