Patent US4579762A successfully refreshed from Google Patents.
US4579762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stain resistant carpet with impervious backing
Assignee: Solutia Inc
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Filing: 1985-06-03
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Granted: 1986-04-01
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Expires: 2005-06-03
Abstract
Abstract Carpets having stain resistant pile fibers and a backing that is substantially impervious to water are described. The impervious backing prevents water from passing through the carpet and into the underpad where its presence causes rotting and mildewing of the underpad and other carpet components. The impervious backing also permits washing of the carpet with generous amounts of water without wetting the underpad.
Inventors
- 👤 Pompelio A. Ucci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:52
CPC Classifications
D; D06; D06N; D06N7/00; D06N7/0063; D06N7/0065; D06N7/0071; D06N7/0073; D06N2201/00; D06N2201/02; D06N2201/0263; D06N2203/00; D06N2203/02; D06N2203/024; D06N2203/026; D06N2203/04; D06N2203/042; D06N2205/00; D06N2205/08; D06N2209/00; D06N2209/12; D06N2209/126; D06N2209/128; D06N2209/14; D06N2209/147; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23979; Y10T428/23986; Y10T428/23993
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
86 words
A carpet comprising a primary backing coated with an adhesive composition and a pile consisting essentially of fibers attached to said primary backing, said carpet being characterized in that said fibers are shaped from nylon 66 or nylon 6 polymer modified to contain as an integral part of its polymer chain aromatic sulfonate units in an amount sufficient to improve the acid dye-resist properties of said fibers and said adhesive composition contains a fluorochemical in an amount sufficient to render said backing substantially impervious to water.
Claim 2
Dependent Claim
86 words
A carpet comprising a primary backing coated with an adhesive composition and a pile consisting essentially of fibers attached to said primary backing, said carpet being characterized in that said fibers are shaped from nylon 66 or nylon 6 polymer modified to contain as an integral part of its polymer chain aromatic sulfonate units in an amount sufficient to improve the acid dye-resist properties of said fibers and said adhesive composition contains a fluorochemical in an amount sufficient to render said backing substantially impervious to water.
Claim 3
Dependent Claim
13 words
The carpet of claim 1 where said polyamide fibers are nylon 66 fibers.
Claim 4
Dependent Claim
26 words
The carpet of claim 1 wherein said aromatic sulfonate units are of the formula ##STR5## where M is hydrogen, the ammonium radical or an alkali metal.
Claim 5
Dependent Claim
11 words
The carpet of claim 1 wherein M is sodium or potassium.
Claim 6
Dependent Claim
11 words
The carpet of claim 1 wherein said fibers are staple fibers.
Claim 7
Dependent Claim
12 words
The carpet of claim 1 wherein the carpet includes a secondary backing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-31 | 1989-09-30 | 1990-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-31 | 1993-09-30 | 1994-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-31 | 1997-09-30 | 1998-04-01 | $7700.00 | Window Closed / Lapsed |