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:
Jan. 26, 2021
Filed:
Nov. 27, 2018
Applicant:
Valmet Technologies, Inc., Espoo, FI;
Inventor:
Jani Turunen, Lievestuore, FI;
Assignee:
VALMET TECHNOLOGIES, INC., Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 1/00 (2006.01); D21F 9/04 (2006.01); B32B 27/20 (2006.01); B32B 27/40 (2006.01); B32B 27/38 (2006.01); D21F 3/10 (2006.01); D21F 3/08 (2006.01); C08K 3/22 (2006.01); C08K 7/24 (2006.01); D21G 1/02 (2006.01); D21H 23/58 (2006.01); D21F 1/40 (2006.01);
U.S. Cl.
CPC ...
D21F 9/046 (2013.01); B32B 1/00 (2013.01); B32B 27/20 (2013.01); B32B 27/38 (2013.01); B32B 27/40 (2013.01); C08K 3/22 (2013.01); C08K 7/24 (2013.01); D21F 1/40 (2013.01); D21F 3/08 (2013.01); D21F 3/105 (2013.01); D21G 1/02 (2013.01); D21G 1/0213 (2013.01); D21G 1/0246 (2013.01); D21H 23/58 (2013.01); B32B 2264/102 (2013.01); C08K 2003/2227 (2013.01);
Abstract
The present invention relates to a roll for use in a manufacture of a fibrous web comprising cellulosic fibers. The roll comprises a roll body with a cylindrical surface, and a roll cover, which is arranged to cover the cylindrical surface of the roll body. The cover comprises a functional layer, which comprises a polymer matrix and filler particles embedded in the polymer matrix. The filler particles comprise hollow spherical particles of aluminium oxide, titanium oxide, zirconium oxide and/or silicon carbide, which hollow particles have a particle size of ≥200 μm.