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. 26, 2023
Filed:
Dec. 15, 2017
Upm-kymmene Corporation, Helsinki, FI;
Vili-Veli Auvinen, Espoo, FI;
Heli Paukkonen, Espoo, FI;
Marjo Yliperttula, Espoo, FI;
Arto Urtti, Kuopio, FI;
Tiina Hakkarainen, Kaavi, FI;
Patrick Laurén, Espoo, FI;
Mikko Kunnari, Nummela, FI;
Timo Laaksonen, Hyvinkää, FI;
Mingwei Li, Helsinki, FI;
Kari Luukko, Espoo, FI;
UPM-KYMMENE CORPORATION, Helsinki, FI;
Abstract
The present disclosure relates to method for drying hydrogel comprising nanofibrillar cellulose, the method comprising providing a hydrogel comprising nanofibrillar cellulose, providing polyethylene glycol, providing trehalose, mixing the hydrogel, the polyethylene glycol and the trehalose to obtain a mixture, and freeze drying the mixture to obtain a dried hydrogel comprising nanofibrillar cellulose. The present disclosure relates to a freeze-dryable hydrogel comprising nanofibrillar cellulose, to a freeze-dried hydrogel comprising nanofibrillar cellulose, and to a medical hydrogel comprising nanofibrillar cellulose and one or more therapeutic agent(s).