Superior stain resistant decorative floor covering and its...

Details Superior stain resistant decorative floor covering and its... Superior stain resistant decorative floor covering and its...

2005-05-31

2005-05-31

Tsoy, Elena (Department: 1762)

Coating processes

Direct application of electrical, magnetic, wave, or...

Polymerization of coating utilizing direct application of...

C427S515000, C427S517000, C427S519000, C522S083000, C522S090000, C522S096000

Reexamination Certificate

active

06899927

ABSTRACT:
A method for manufacturing a decorative floor covering is provided in which the floor covering includes a backing layer, a substrate layer and a surface layer. The backing layer includes at least one of a foaming sub-layer, a mechanical foaming sub-layer and a sizing sub-layer. The surface layer includes at least one of a foaming sub-layer, a non-foaming sub-layer, a printing sub-layer and a skin sub-layer. The method for manufacture includes: (i) air-knife coating a surface treatment composition to a thickness of 10 to 40 μm on the surface layer wherein the surface treatment composition includes an urethaneacrylate oligomer, an acrylate based monomer, acetophenone photoinitiator, a silicon additive and a matting agent, and (ii) curing the surface treatment composition at a line speed of 5 to 30 m/min using 4 to 8 lamps having an output of 200 to 300 watt/in2with the strongest wavelength at 365 nm.

REFERENCES:
patent: 4214028 (1980-07-01), Shortway et al.
patent: 4227980 (1980-10-01), Pregitzer et al.
patent: 5183831 (1993-02-01), Bielat et al.
patent: 5977200 (1999-11-01), Lake
patent: 6103352 (2000-08-01), Takahashi
patent: 61209927 (1985-03-01), None

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