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US 6,468,666 B2Granted
Magnetic susceptible markerboard
AssigneePremark RWP Holdings, Inc.
InventorsRobert R. Krebs, Ernest L. Phelps
Life of this patent
Estimating the term…
Abstract
A magnetically active laminate is disclosed. The magnetically active laminate is composed of a resin impregnated layer bonded to a distinct, magnetically active sheet. The laminate is especially well suited for use in the construction of erasable markerboards and cubicle panels, although many applications are possible within the scope of the present invention.
Claims36
A laminate, comprising:
- a first phenolic resin impregnated layer, wherein the first phenolic resin impregnated layer is composed of phenolic resin impregnated kraft paper,
- a distinct, magnetically active sheet;
- and
- a first binding layer coupling the first resin impregnated layer to the magnetically active sheet;
- wherein the first binding layer is composed of a copolymer consisting of styrene and maleic anhydride.
2 more elements
A laminate, comprising:
- a first phenolic resin impregnated layer, wherein the first phenolic resin impregnated layer is composed of phenolic resin impregnated kraft paper;
- a magnetically active sheet composed of a substantially distinct material;
- and
- a first binding layer coupling the first resin impregnated layer to the magnetically active sheet;
- wherein the first binding layer is composed of a copolymer consisting of styrene and maleic anhydride.
2 more elements
A laminate, comprising:
- a first phenolic resin impregnated layer, wherein the first phenolic resin impregnated layer is composed of phenolic resin impregnated kraft paper,;
- a magnetically active layer having a substantially uniform material composition;
- and
- a first binding layer coupling the first resin impregnated layer to the magnetically active layer;
- wherein the first binding layer is composed of a copolymer consisting of styrene and maleic anhydride.
2 more elements
A laminate, comprising:
- a polymer layer composed of a phenolic resin impregnated layer, wherein the phenolic resin impregnated layer is composed of resin impregnated kraft paper,
- a binding layer, and
- a steel layer;
- a binding layer composed of a copolymer consisting of styrene and maleic anhydride positioned between the polymer layer and the steel layer for ensuring a secure bond between the layers.
1 more element
The laminate according to claim wherein the steel layer includes an oil coating.
A laminate, comprising:
- a decorative layer, a first phenolic resin impregnated core layer, wherein the first phenolic resin impregnated layer is composed of phenolic resin impregnated kraft paper,
- a second phenolic resin impregnated core layer, wherein the second phenolic resin impregnated layer is composed of phenolic resin impregnated kraft paper,
- a magnetically active layer positioned between the first resin impregnated layer and the second resin impregnated layer, and
- a first binding layer coupling the first resin impregnated layer to the magnetically active layer, wherein the first binding layer is a copolymer consisting of styrene and maleic anhydride.
1 more element
A cubicle panel, comprising:
- a decorative laminate including:
- a decorative layer,
- a phenolic resin impregnated core layer, wherein the phenolic resin impregnated core layer is composed of phenolic resin impregnated kraft paper,
- a magnetically active layer;
- and
- a binding layer composed of a copolymer consisting of styrene and maleic anhydride positioned between the core layer and the magnetically active layer;
- a substrate to which the decorative laminate is bonded to form a decorative laminate panel;
- and
- connecting means coupled to edges of the decorative laminate panel for selectively securing the cubicle panel to adjacent cubicle panels.
6 more elements
A magnetic susceptible markerboard, comprising:
- a decorative laminate including an exterior surface permitting the use of the decorative laminate panel as a readily erasable markerboard, the decorative laminate including:
- a decorative layer including an exterior surface permitting the selective use of the decorative laminate panel as a readily erasable markerboard;
- a first phenolic resin impregnated core layer, wherein the first phenolic resin impregnated layer is composed of resin impregnated kraft paper,
- a magnetically active layer, and
- a first binding layer composed of a copolymer consisting of styrene and maleic anhydride coupling the first phenolic resin impregnated layer to the magnetically active layer.
2 more elements
Dependencies are inferred from the claim text.