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. 05, 2023
Filed:
Jan. 31, 2019
Stora Enso Oyj, Helsinki, FI;
Kaj Backfolk, Villmanstrand, FI;
Isto Heiskanen, Imatra, FI;
Esa Saukkonen, Lappeenranta, FI;
Jukka Kankkunen, Imatra, FI;
Anna Nyberg Zetterlund, Hammarö, SE;
Jan Lif, Hammarö, SE;
Stora Enso OYJ, Helsinki, FI;
Abstract
The present invention relates to a process for manufacturing a film comprising high amounts of microfibrillated cellulose (MFC), having haptic properties. According to the present invention, a wet web comprising MFC is formed, followed by addition of particles having an average diameter of at least 1 μm to the wet web, followed by dewatering and/or drying. The wet web may be formed for example by wet laid or cast forming methods. The particles may be added to the wet web for example by cast coating or spraying.