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:
May. 07, 2019
Filed:
Sep. 15, 2014
Upm Specialty Papers Oy, Helsinki, FI;
Jukka Kotilainen, Valkeakoski, FI;
Jussi Leinonen, Valkeakoski, FI;
Janne Antila, Hämeenlinna, FI;
Jari Tamminen, Valkeakoski, FI;
UPM SPECIALTY PAPERS OY, Helsinki, FI;
Abstract
The invention relates to manufacturing low weight high quality paper suitable for use as a support layer of a release liner. A paper web is formed from pulp slurry, the moisture content of the paper web is reduced by a press section (PSEC), the paper web is supported by a belt (BELT) from a first contact point (CP) in the press section (PSEC) to a first separation point (SP) in a drying section (DSEC), and the paper web is dried to form paper. The temperature profile of the paper web may be non-decreasing. When supported, the temperature of the paper web of the paper web may be higher than or equal to 56° C. to obtain a paper web having a dry content of at least 40 wt.-% at the first separation point.