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US 12,679,063 B2Granted
Multi-layer material for press molding, a delivery system and a resulting fiber product
AssigneeBlue Ocean Closures AB
InventorLars Sandberg
Life of this patent
Estimating the term…
Abstract
The present invention relates to a multi-layer material for press molding, a delivery system and a resulting fiber product. Also, a method for recovery is disclosed.
Claims23
A multilayer substrate comprising at least one layer providing tensile strength and at least one layer containing fibers with an internal strength sufficiently low to permit fiber relocation in a press forming operation, forming new bonds in, at least partly, different positions than prior to the press forming operation,
- wherein said substrate comprises at least three layers, including at least one central layer positioned between two outer layers, said at least one central layer comprising said at least one layer containing fibers with an internal strength sufficiently low to permit fiber relocation in a press forming operation, forming new bonds in, at least partly, different positions than prior to the press forming operation;
- and
- wherein at least one outer layer has a higher tensile strength and is thinner than the at least one central layer.
Dependencies are inferred from the claim text.