Scuff-resistant laminates

Details Scuff-resistant laminates Scuff-resistant laminates

1984-07-25

1985-07-30

McCamish, Marion E.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428147, 428204, 428327, 4283222, 428486, B32B 300, B32B 714, B32B 518, B32B 926

Patent

active

045321701

ABSTRACT:
The scuff resistance of a high-pressure laminate is improved by incorporating in or very near the surface thereof, finely divided polyethylene wax preferably having a particle size of about 1-25 microns and a melting point of 220.degree.-230.degree. F. The wax is incorporated as part of a coating mixture applied to the face of an unimpregnated decor paper sheet in an ultra-thin layer, which layer is dried at a temperature below the wax melting point and then impregnated with conventional melamine-formaldehyde resin. The impregnated sheet is placed onto a sheet of convention phenolic resin impregnated core sheets and consolidated in the conventional way under heat and pressure. During consolidation, the wax particles "bloom", or migrate to the surface. The finished laminate surface has greatly improved scuff resistance.

REFERENCES:
patent: 3726817 (1973-04-01), Niswonger
patent: 4109043 (1978-08-01), Delopp
patent: 4112169 (1978-09-01), Huffmon et al.
patent: 4139671 (1979-02-01), Kelly et al.
patent: 4255480 (1981-03-01), Scher et al.
patent: 4263081 (1981-04-01), Scher et al.

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