Stock material or miscellaneous articles – Pile or nap type surface or component – With coating – impregnation – or bond
Reexamination Certificate
2007-12-25
2007-12-25
Juska, Cheryl (Department: 1771)
Stock material or miscellaneous articles
Pile or nap type surface or component
With coating, impregnation, or bond
C428S095000, C427S412000, C427S209000, C427S389900, C427S394000
Reexamination Certificate
active
10770834
ABSTRACT:
A method for producing a carpet comprising the steps of (a) providing a carpet having a pile side formed from yarn fibers projecting through a primary backing layer and an underside region comprising back stitch yarn fibers; (b) applying effective repellency enhancing amounts of a first repellency enhancing compound to the pile side; (c) applying a liquid repellency enhancing compound to the underside region to provide liquid barrier properties in the region; and (d) applying separately and subsequently a coating to the underside region. Step (a) may be performed separately from step (b) and the liquid repellency enhancing compound forms a discontinuous layer. A carpet with improved liquid barrier properties produced by the method and variations thereof is also disclosed.
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Bernstein Jason A.
Columbia Insurance Company
Juska Cheryl
Powell & Goldstein LLP
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