Roll Cover, Roll, And Use Of Said Roll
AssigneeVoith Patent GmbH
InventorsFRANZ GROHMANN, ANTON HORAK, NINA EGGERS, STEFAN POLLASCHEK
Life of this patent
Estimating the term…
Abstract
A roll covering includes a functional layer formed of a polymer which is a blend of at least one rubber and one millable polyurethane rubber. The polymer includes from 65% by weight to 85% by weight of the at least one rubber and from 15% by weight to 35% by weight of the millable polyurethane rubber. A roll having the roll core, a method of using the roll and a combination of the roll and a heated drying cylinder are also provided.
Claims17
1-13. (canceled)
A roll covering, comprising:
- a functional layer formed of a polymer being a blend of at least one rubber and one millable polyurethane rubber;
- said polymer including from 65% by weight to 85% by weight of said at least one rubber and from 15% by weight to 35% by weight of said millable polyurethane rubber.
A method of using a roll in a machine for manufacturing paper, paperboard or tissue, the method comprising the following steps:
- providing a roll including a roll core and, formed on the roll core, a roll covering having a functional layer produced from a polymer being a blend of at least one rubber and one millable polyurethane rubber, the polymer including from 65% by weight to 85% by weight of the at least one rubber and from 15% by weight to 35% by weight of the millable polyurethane rubber;
- and
- using the roll for surface finishing, drainage, sizing, coating or pigmentation of a fiber web including a paper web, a paperboard web or a tissue web.
A combination, comprising:
- a roll including a roll core and, formed on said roll core, a roll covering having a functional layer formed of a polymer being a blend of at least one rubber and one millable polyurethane rubber, said polymer including from 65% by weight to 85% by weight of said at least one rubber and from 15% by weight to 35% by weight of said millable polyurethane rubber;
- and
- a heatable or heated drying cylinder;
- said roll and said drying cylinder being at least indirectly in contact with one another and together delimiting a press nip.
Dependencies are inferred from the claim text.