Coated pressing surfaces for abrasion resistant laminate and making laminates therefrom
AssigneePremark RWP Holdings, Inc.
InventorsMuyuan M. Ma, Jay T. Oliver
Life of this patent
Estimating the term…
Abstract
A press plate for producing decorative laminate from resin impregnated paper, with alumina particles on its pressing surface, is coated with diborides selected from the group consisting of hafnium diboride, molybdenum diboride, tantalum diboride, titanium diboride, tungsten diboride, vanadium diboride, or zirconium diboride or mixtures thereof for making the press plate resistant to scratching. The preferred diborides are titanium and zirconium. The most preferred diboride is titanium. The color, gloss and surface appearance of laminate pressed with a titanium diboride coated press plate is substantially the same as laminate pressed with the press plate before coating.
Claims47
A method of making a durable laminate, comprising:
- assembling a stack comprising at least one resin impregnated layer, wherein said resin impregnated layer is provided with an amount of a first substance adapted to at least in part provide a desired durable characteristic to said laminate;
- positioning a press plate adjacent to said at least one resin impregnated layer with a surface of said press plate in contact with a first surface of said at least one resin impregnated layer, wherein said surface of said press plate has been coated with a second substance adapted to provide enhanced resistance to degradation of said press plate due to interfacing with said first substance, wherein said second substance has been further adapted not to transfer an undesirable color to said resin impregnated layer when said surface of said press plate engages said first surface of said at least one resin impregnated layer;
- and
- applying said surface of said press plate coated with said second substance to said first surface of said resin impregnated layer.
A method of making a durable laminate, comprising:
- sputter coating a surface of a press plate with a first substance that provides enhanced resistance to degradation of said press plate due to interfacing with a second substance, wherein said coating is done at a speed selected to at least in part prevent warping of said press plate;
- positioning said press plate adjacent to a laminate material comprising at least a first layer with said surface of said press plate in contact with a first surface of said first layer, wherein an amount of said second substance is provided to said first layer to at least in part provide a durable characteristic to said laminate;
- and
- applying said press plate to said first surface to provide a desired characteristic to said first surface.
A method of making a press plate for producing a laminate, comprising:
- coating a first surface of said press plate with a first substance to provide enhanced resistance to degradation of said press plate due to interfacing with a second substance provided to a first layer, wherein said first substance is adapted not to transfer an undesirable color to said first layer due to said interfacing.
Dependencies are inferred from the claim text.