David A Macewen

US Patent:

62806483, Aug 28, 2001

Filed:

Oct 20, 1998

Appl. No.:

9/176072

Inventors:

Jim Konzelman - Athens GA
David A. MacEwen - Greenville SC
Robert B. Login - Simpsonville SC

Assignee:

Sybron Chemicals, Inc. - Wellford SC

International Classification:

D06M 900

US Classification:

252 861

Abstract:

A stain blocking composition for treating polyamide materials, such as nylon carpeting is disclosed. The stain blocking composition contains one or more novolak resins in combination with an addition polymer and a metal donor, such as a magnesium salt. The addition polymer is directed to a partially sulfonated styrene-maleic copolymer. The addition polymer not only serves as a stain blocking composition but also serves to reduce the yellowing effect sulfonated novolak resins may have on polyamide substrates. Besides containing a sulfonated novolak resin and the addition polymer, the composition of the present invention can include various other ingredients. For instance, the composition can contain an emulsifier or dispersant, antioxidants such as sodium thiocyanate or fluorocarbon repellents or mixtures thereof.