US 10,493,729 B2 · Method of producing a building panel and a building panel

Abstract

A method of producing a building panel, including: providing a core, applying a balancing layer having a first moisture content on a first surface of the core, the balancing layer comprising a sheet impregnated with a thermosetting binder, applying a surface layer having a second moisture content on a second surface of the core, the surface layer comprising a thermosetting binder, adjusting the first moisture content of the balancing layer such that the first moisture content of the balancing layer is higher than the second moisture content of the surface layer prior to curing, and curing the surface layer and the balancing layer by applying heat and pressure. Also, a semi-finished product adapted to be cured for forming a building panel.

Claims20

Dependent claims

A method of producing a building panel, comprising:

providing a core,
applying a balancing layer on a first surface of the core, wherein the balancing layer has a first moisture content, the balancing layer comprising a sheet,
applying a surface layer on a second surface of the core, wherein the surface layer has a second moisture content,
adjusting the first moisture content of the balancing layer such that the first moisture content of the balancing layer is higher than the second moisture content of the surface layer prior to curing by applying heat and pressure, and
curing the surface layer and the balancing layer by applying heat and pressure to produce the building panel with the surface layer oriented on an upper surface of the core and the balancing layer oriented on a lower surface of the core,
wherein the surface layer is configured to be a visible surface when the building panel is installed.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/884,255Filed 15 Oct 2015 · continuation

Priority

11 Jan 2013

Published

US 2016/0031189 A14 Feb 2016

Granted

3 Dec 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification24 codes

B32B 21/06
Comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material: of paper or…
B32B 21/02
Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board: the layer being formed of fibres, chips, or particles ,…
B32B 37/0038
Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding: involving application of liquid to the layers prior to lamination,…
B32B 37/18
With all layers existing as coherent layers before laminating: involving the assembly of discrete sheets or panels only

Family

Application61/751,393Us provisional application · filed 11 Jan 2013

Application14/151,973Parent of this continuation · filed 10 Jan 2014

US 2016/0031189 A1Pre-grant publication · published 4 Feb 2016

US 9,181,698 B2Parent of this continuation

US 2014/0199558 A1Published application

US 10,493,729 B2This patent

From the US filing history. Foreign family members aren’t listed.

Method of producing a building panel and a building panel

Life of this patent

Method of producing a building panel and a building panel

Life of this patent

Abstract

Claims20