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:
Sep. 07, 2010
Filed:
May. 06, 2009
Michael Blumenschein, Bensheim, DE;
Carlo Schuetz, Messel, DE;
Xenia Dann, Gernsheim, DE;
Roland Saettler, Ober-Ramstadt, DE;
Michael Blumenschein, Bensheim, DE;
Carlo Schuetz, Messel, DE;
Xenia Dann, Gernsheim, DE;
Roland Saettler, Ober-Ramstadt, DE;
Evonik Rohm GmbH, Darmstadt, DE;
Abstract
The adhesive bonding of matted PMMA with customary polymerization adhesives leads to very shiny bond seams, since the cured polymerization adhesives have a shiny surface. This emphasizes the very joining zones which it is intended that the viewer of bonded products should not perceive. The adhesive should therefore be matted after curing. The adhesive has for its basis a polymerization adhesive, preferably a (meth)acrylate-based adhesive. Two different kinds of silica are added as disperse powder to the polymerization adhesive, namely a silica powder having an average particle size of from 1 μm to 10 μm (matting agent) and a silica powder having an average particle size of more than 10 μm up to 200 μm (texturing agent).