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( 4380 of 4380 ) |
United States Patent | 4,680,212 |
Blyth , et al. | July 14, 1987 |
Nylon carpet fibers are provided which resist staining by acid dye colorants at room temperature, yet are dyeable at elevated temperatures with acid dyes without losing their resistance to acid dye colorants at room temperature. The fibers are characterized by having a coating on the surface thereof comprising one or more selected compounds (stain blockers). Carpets comprising the fibers resist staining when exposed for long periods of time to spills containing acid dye colorants. By also including a fluorochemical in the coating, the carpets can resist such staining even after being subjected to heavy human trafficking.
Inventors: | Blyth; Randolph C. (Gulf Breeze, FL), Ucci; Pompelio A. (Pensacola, FL) |
Assignee: |
Monsanto Company
(St. Louis,
MO)
|
Appl. No.: | 06/914,507 |
Filed: | October 2, 1986 |
Application Number | Filing Date | Patent Number | Issue Date | ||
834804 | Mar., 1986 | ||||
643606 | Aug., 1984 | ||||
562370 | Dec., 1983 | ||||
Current U.S. Class: | 428/97 ; 428/395 |
Current International Class: | D06M 15/37 (20060101); D06M 15/277 (20060101); D06M 15/41 (20060101); D06M 15/21 (20060101); B32B 027/34 () |
Field of Search: | 428/97,375,378,392,394,395 252/8.7,8.75,8.8,15,21,65,73 |
3118723 | January 1964 | Harding |
3178309 | April 1965 | Harding |
3322488 | May 1967 | Freeman |
3663157 | May 1972 | Gilgien et al. |
3765839 | October 1973 | Mueller et al. |
3849162 | November 1974 | Mueller et al. |
4295852 | October 1981 | Walz et al. |
4302202 | November 1981 | Sumner et al. |
4317736 | March 1980 | Marshall et al. |
4325890 | April 1982 | Reitz et al. |
4501591 | February 1985 | Ucci et al. |
"The Monsanto Ultron.RTM. 3D Technical Dyeing Manual", p. 20, This manual was distributed by Monsanto to its carpet fiber customers sometime during Oct. or Nov. of 1983.. |
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