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US 10,145,065 B2Granted
Roll cover
AssigneeVoith Patent GmbH
InventorsFranz Grohmann, Martin Breineder, Thomas Breineder
Life of this patent
Estimating the term…
Abstract
A roll cover is particular suited for use in an apparatus for producing or surface finishing a fibrous web, such as a web of paper or of cardboard. The roll cover is formed on a roll core of metal or of a fiber-reinforced plastic and includes a matrix system wherein fillers are provided. The fillers provided are three or more in number and they have different median particle sizes.
Claims16
A roll cover assembly, comprising:
- a roll cover formed on a roll core of metal or of a fiber-reinforced plastic, said roll cover being formed of a fiber-reinforced plastic including a matrix system with fillers in said matrix;
- said fillers being at least three in number and said fillers having distinctly different median particle sizes, with a first filler material having a median particle size in a range from 1 to 100 nm, a second filler material having a median particle size in a range from 50 to 2000 nm, and a third filler material having a median particle size in a range from 0.5 to 15 μm.
Dependencies are inferred from the claim text.