Abstract: Polyester resins are disclosed as the impregnant in the core sheets of heat and pressure consolidated laminates, especially decorative laminates having a core of a color complementing that of the decor sheet, and more especially those decorative laminates of unusual thickness.

Abstract: A decorative laminate comprising a core of at least one sheet of saturating kraft paper impregnated with a blend of a phenol/formaldehyde resin and a cross-linked, acrylic copolymer and optionally, a melamine/formaldehyde resin, and a decor sheet impregnated with (1) a first blend of a melamine/formaldehyde resin and a cross-linked, acrylic copolymer and (2) a second blend of a melamine/formaldehyde resin and an abrasive material, and a method for the production thereof, are disclosed.

Abstract: A novel release sheet comprising a web of paper having a water absorption of at least about 200 seconds which has been sized on at least one side thereof with a water-soluble, alkaline earth or earth metal salt, e.g. a calcium salt such as calcium chloride and then coated on said sized side with a film of a mixture of a salt of alginic acid, such as sodium alginate, and either (1) a triglyceride or (2) hydrolyzed or non-hydrolyzed lecithin, and a method of producing decorative laminates therewith.

Abstract: A novel method of releasing from one another in a press pack, a plurality of heat and pressure consolidated resin-impregnated laminates, including those pressed back-to-back, e.g. decorative laminates, metal clad laminates, veneer backs and the like, which method comprises utilizing, as a separator sheet, a web of phenol-formaldehyde resin-free paper having a water absorption of at least about 200 seconds which has been sized on at least one side thereof, from an aqueous solution, with a water-soluble, alkaline earth or earth metal salt, e.g. a calcium salt such as calcium chloride, and then coated on said sized side with a film of a salt of alginic acid, such as sodium alginate.

Abstract: A novel method of releasing from one another in a press pack, a plurality of back-to-back heat and pressure consolidated resin-impregnated laminates, e.g. decorative laminates, metal clad laminates, veneer backs and the like, which method comprises utilizing, as a separator sheet, a web of phenol-formaldehyde resin-free paper having a water absorption of at least about 200 seconds which has been sized on at least one side thereof, from an aqueous mixture, a water-soluble, alkaline earth or earth metal salt, e.g. a calcium salt such as calcium chloride, then coated on said sized side with a film of a mixture of a salt of alginic acid, such as sodium alginate, and either (1) a triglyceride or (2) hydrolyzed or non-hydrolyzed lecithin.

Abstract: Polyester resins are disclosed as the impregnant in the core sheets of heat and pressure consolidated laminates, especially decorative laminates having a core of a color complementing that of the decor sheet, and more especially those decorative laminates of unusual thickness.