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:
Feb. 05, 2019
Filed:
May. 17, 2017
Evonik Roehm Gmbh, Darmstadt, DE;
André Hennig, Ingelheim, DE;
Bruno Keller, Wackernheim, DE;
Juergen Hartmann, Darmstadt, DE;
Thomas Arnold, Gelnhausen, DE;
Michael Waldhaus, Reinheim, DE;
Monika Maerz, Alzenau, DE;
Evonik Roehm GmbH, Darmstadt, DE;
Abstract
A transparent, heat-sealable coating for transparent PET packaging foils can be provided by using a heat-sealable lacquer based on styrene-containing copolymers, on poly(meth)acrylates, on at least one polyester and optionally on a tackifier, and also the process for the sealing of a foil coated with this lacquer. It is surprising here that, despite the use of a rubber based on styrene-containing polymers that is not optically compatible with polyesters and polymethacrylate, the transparency of the heat-sealable coatings is still very high.