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. 03, 2002
Filed:
Apr. 02, 2001
Holger Hollmark, Linnégatan, SE;
Lennart Reiner, Tage Erlandergatan, SE;
Thomas Billgren, Kullavik, SE;
Kaveh Tondkar, Wieselgrensplatsen, SE;
Mats Söderberg, Bågevägen, SE;
Bengt Järrehult, Repslagaregatan, SE;
SCA Hygiene Products AB, Gothenburg, SE;
Abstract
Method of producing a paper having a three-dimensional pattern of alternating raised and recessed portions which is given the paper in connection with impulse drying. The paper web has a varying material composition as seen in its thickness direction, so that it at least in an outer layer contains an amount of a material that softens, melts or hardens in the temperature interval 100-400° C. or in some other way contributes in stabilizing the pattern structure that has been given the paper. It is further referred to an impulse dried paper produced according to the method.