Method of controlling specular gloss characteristics
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United States of America Patent
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Oct 8, 2002
Grant Date -
N/A
app pub date -
Aug 31, 2000
filing date -
Aug 31, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The specular gloss of a polyurethane wear layer of a surface covering is controlled by controlling the thermal conditions of a substrate before and after it is coated with a liquid polyurethane and by controlling the termal conditions of the liquid polyurethane before it is coated on the substrate. The liquid polyurethane is photo-curable or radiation-curable and it contains a matting agent. Changes in specular gloss are attained without changing the composition of the polyurethane or the conditions of photo-curing or radiation curing.
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