IP Library Granted Patent US 11,376,810
Granted Patent B2
US 11,376,810 · App. 16/958,223 · Granted Jul 5, 2022

Laminate with synchronous structure

Inventors: Rainer Doehring (Mielec, PL); Dawid Piotrowski (Olkusz, PL)
Assignee: Xylo Technologies AG
B32B3/30B32B3/06B32B21/02B32B21/06B32B37/1027B32B38/06B44C1/24B44C5/0492B44F9/02E04F13/0866E04F13/0889E04F15/02005E04F15/107B32B2260/028B32B2260/046B32B2307/4023B32B2307/558B32B2471/00B32B2479/00B32B2607/00B44C5/0461
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Quick Facts
Patent No.
US 11,376,810
App. No.
16/958,223
Granted
Jul 5, 2022
Kind
B2
Abstract

A process for the manufacture of a laminate, in particular a continuously pressed laminate, CPL, which can be used, for example, as a surface laminate in the manufacture of worktops or floor panels. The process includes the provision of a finish foil and a support structure, as well as the pressing of the finish foil with the support structure in a CPL process. The provision of a support structure includes impregnating the support structure with phenolic resin. The finish foil is provided with a decorative pattern and a three-dimensional structure that is synchronized with the decorative pattern.

Claims (34)

1. A method for producing a laminate, comprising the following steps:

providing a finish foil, wherein the finish foil is provided with a decorative pattern and a three-dimensional structure, where the three-dimensional structure is synchronized with the decorative pattern;

providing a support structure, wherein the support structure is provided with a phenolic resin; and

pressing of the finish foil with the support structure in a CPL-continuously pressed laminate (CPL) process,

wherein the phenolic resin is a phenol-formaldehyde resin;

wherein the phenolic resin includes a curing agent such that the phenolic resin has a turbidity time at 100 degrees Celsius of 3.0 to 7.0 minutes;

wherein the resin content in the support structure is 70 to 99% by weight;

wherein providing the support structure includes impregnating the support structure with the phenolic resin;

wherein volatile matter after drying of the impregnate are in a range between 6.5% and 9.0%.

2. The method according to claim 1 , wherein the pattern imitates a wooden surface.

3. The method according to claim 1 , wherein the pressing is carried out against an embossing structure provided in the CPL process.

4. The method according to claim 3 , wherein the embossing structure is a textured press belt, or a textured paper, or a textured press plate.

5. The method according to claim 1 , wherein the phenolic resin comprises a curing agent such that the phenolic resin has a turbidity time at 100 degrees Celsius of 3.5 to 6.5 minutes.

6. The method according to claim 1 , wherein the resin content in the support structure is 80 to 95% by weight.

7. The method according to claim 1 , wherein the support structure comprises one or more layers of paper.

8. The method according to claim 1 , wherein the pressing takes place at a pressure of 10 to 100 bar.

9. The method according to claim 1 , wherein the pressing is carried out at a temperature of 120 to 200 degrees Celsius.

10. The method according to claim 1 , wherein the pressing is carried out by a double-belt press.

11. The method according to claim 1 , further comprising providing a dry sheet, wherein the pressing comprises compressing the finish foil with the support structure and the dry sheet in the CPL process.

12. Laminate manufactured by a method according to claim 1 .

13. The laminate according to claim 12 , wherein the laminate has ball impact values according to EN 438 at a shock load with small balls of at least 5 N and not more than 15 N.

14. A panel, comprising a carrier board and a laminate in accordance with claim 12 attached to the carrier board.

15. The panel according to claim 14 , the panel being designed as a floor panel, comprising coupling elements adapted for positive coupling without glue to another similar panel.

16. The panel according to claim 14 , wherein the panel has ball impact values according to EN 438 at a shock load with small balls of at least 15 N and a maximum of 30 N.

17. A process for the manufacture of a panel:

providing a laminate according to claim 12 ;

providing a carrier board; and

laminating the laminate onto the carrier board.

18. A laminate, comprising:

a finish foil; and

a support structure, wherein the support structure is provided with a phenolic resin;

wherein the finish foil is provided with a decorative pattern and a three-dimensional structure, where the three-dimensional structure is synchronized with the decorative pattern,

wherein the finish foil is pressed with the support structure to form the laminate, and

the laminate having a thickness of from 0.1 to 2.0 mm.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 19, 2023
From: XYLO TECHNOLOGIES AG
To: LIGNUM TECHNOLOGIES AG
Reel/Frame 065906/0900 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 1, 2020
From: DOEHRING, RAINER; PIOTROWSKI, DAWID
To: XYLO TECHNOLOGIES AG
Reel/Frame 053099/0468 →
Continuity (1)
Related Publication 20200368993A1 · Nov 26, 2020