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. 03, 2019
Filed:
Jul. 29, 2015
Applicant:
Munksjö Oyj, Helsinki, FI;
Inventors:
Laurent Schildknecht, Saint Laurent de Mure, FR;
Séverine Schott, Saint-Julien-de-Ratz, FR;
Pascale Escaffre, La Cote Saint Andre, FR;
Assignee:
Munksjö Oyj, Helsinki, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 27/10 (2006.01); B65B 9/20 (2012.01); D21H 19/22 (2006.01); D21H 19/38 (2006.01); D21H 19/40 (2006.01); D21H 19/54 (2006.01); D21H 19/62 (2006.01); D21H 19/82 (2006.01); D21H 19/84 (2006.01); D21H 27/16 (2006.01);
U.S. Cl.
CPC ...
D21H 27/10 (2013.01); B65B 9/20 (2013.01); D21H 19/22 (2013.01); D21H 19/385 (2013.01); D21H 19/40 (2013.01); D21H 19/54 (2013.01); D21H 19/62 (2013.01); D21H 19/826 (2013.01); D21H 19/84 (2013.01); D21H 27/16 (2013.01);
Abstract
The invention relates to a method for the production of a heat-sealable paper that forms a barrier to water vapour, in particular having a water vapour permeability of at most 150 g/m/24 h measured according to ASTM F1249 under so-called tropical conditions of 38° C. and 90% relative humidity, in which at least one coating layer comprising at least one thermoplastic film-forming polymer is applied in-line on the paper-making machine to the fibrous substrate.