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:
Mar. 03, 2015
Filed:
Oct. 23, 2008
Alexander Prenzel, Hamburg, DE;
Jennifer Beschmann, Hamburg, DE;
Alexander Prenzel, Hamburg, DE;
Jennifer Beschmann, Hamburg, DE;
tesa SE, Hamburg, DE;
Abstract
The invention relates to a process for preparing a dispersion-based or hotmelt pressure-sensitive adhesive based on at least one polymer, which involves crosslinking the at least one polymer, the polymer having functional groups Y, the polymer additionally being admixed with at least one kind of functionalized particles which have at least one polymeric base unit, characterized in that the particles have a monomer as base unit, the monomer having at least one kind of functional groups Z which are not able to enter into any reaction with the functional group Y and which, by thermal energy, electromagnetic radiation, particulate radiation and/or sound energy, are converted into the group X, the crosslinking of the polymer being brought about at least in part by a reaction of the functional groups X of the particles and of the functional groups Y of the polymer, and additionally to pressure-sensitive adhesives based on at least one crosslinked polymer component, wherein the crosslinking of the polymer component is brought about at least partly through incorporation of functionalized particles, the particles having at least one polymeric base unit and also a monomer with one kind of functional groups Z, these groups Z, following conversion into the groups X by means of thermal energy, electromagnetic radiation, particulate radiation and/or sound energy, being capable of reacting with functional groups Y that are present in the polymer component, and also to the use of surface-modified functionalized particles having a polymeric base unit as crosslinking reagents for the crosslinking of polymers for preparing pressure-sensitive adhesives.