Method for manufacturing a laminate, an aminoplast resin catalyst used therein, and a laminate obtained thereby
AssigneeUnilin BV
InventorDieter D'Hondt
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Abstract
A method for manufacturing a laminate includes a carrier material and a cured thermosetting resin. The resin is cured using a catalyst showing one or a combination of two or more of the following properties: the catalyst has a pressure activatable catalyst; the catalyst has an encapsulated catalyst; the catalyst has an organic carboxylic acid. A method is provided for impregnating a paper layer, and an aminoplast resin catalyst is used in the method.
Claims14
A method for manufacturing a laminate, comprising at least a carrier material and a cured aminoplast resin, wherein said method at least comprises:
- the step of providing a carrier material;
- the step of providing a resin mixture, at least comprising said aminoplast resin and capsules comprising a catalyst for curing said resin;
- the step of assembling a stack at least comprising said carrier material and said resin mixture;
- the step of curing said resin under application of heat and pressure,
- wherein the capsules comprise a shell comprising melamine.
A method for impregnating a paper, wherein said paper is impregnated with a resin mixture at least comprising an aminoplast resin and capsules comprising a catalyst,
- wherein said catalyst is heptanoic acid,
- wherein the capsules have an average diameter as expressed with a d50 particle size as determined by a laser light scattering granulometry technique (ISO EN 13320:2009), of below 25 μm;
- wherein said capsules are pressure-activatable and release said catalyst upon exerting pressure.
Dependencies are inferred from the claim text.