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Improved stability for coapplication

A co-copolymer technology, used in fiber processing, textiles and papermaking, can solve problems that have not been mentioned for use together

Inactive Publication Date: 2008-12-24
EI DU PONT DE NEMOURS & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pacifici does not mention the use of repellant emulsions based on cationic dispersed fluorochemicals (as antifouling agents) with stain repellents

Method used

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  • Improved stability for coapplication
  • Improved stability for coapplication
  • Improved stability for coapplication

Examples

Experimental program
Comparison scheme
Effect test

test approach 1-C

[0044] Test method 1-Cherry KOOL-AID staining test method (Stain Test Method)

[0045]Cherry KOOL-AID (KOOL-AID is a trademark of Kraft General Foods, Inc., White Plains NY) staining tests were performed on 15 cm x 15 cm carpet samples. Acid dye stain resistance was evaluated using a method based on American Association of Textile Chemists and Colorists (AATCC) Method 175, "Stain Resistance: Pile Floor Coverings." . The staining solution was prepared by mixing Cherry KOOL-AID sweetened with sugar (36.5 g) and 500 mL of water. Place the carpet sample to be tested on a flat, non-absorbent surface and place a 2 inch (5 cm) diameter hollow plastic cylinder tightly over the carpet sample. The KOOL-AID stain solution (20 mL) was injected into the cylinder that had been previously placed on the carpet sample. Work the stain evenly into the carpet. The cylinder was then removed and the stained carpet samples were left undisturbed for 24 hours. Then, rinse the carpet well under ...

test approach 4-

[0050] Test Method 4 - Mixture Stability

[0051] All mixtures of anti-stain agent, anti-stain agent, and co-application enhancer were judged by visual inspection as either stable mixtures (i.e., the formulation remained a homogeneous mixture) or unstable mixtures after the storage period indicated in each of the Examples and Comparative Examples (ie the formulation is not a homogeneous mixture).

Embodiment 1-5

[0055] Concentrated mixtures of Examples 1-5 were prepared by physically mixing a mixture consisting of 50% Antistain 1, 25% of the 10% co-applied enhancer solution listed in Table 1, and 25% Antistain 1. The stability of the mixture was observed after 3 and 5 days (test method 4). The stability results are listed in Table 1.

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Abstract

A composition comprising a stable mixture of at least one stain resist agent, at least one soil resist agent, and at least one coapplication enhancer, the enhancer comprising at least one of an alkali metal salt; alkali metal aryl salt; ammonium salt; ammonium aryl salt; aryl sulfonic acid; urea; amide; alkylamide; dialkylamide; amide of C1 to C6 alkanoic acids or of C2 to C6 alkandioic acids; diamides of C2 to C6 alkandioic acids; cyclic imide of C2 to C6 alkandioic acids; C3 to C6 lactams, or combinations thereof, is disclosed.

Description

Background of the invention [0001] In general, the present invention relates to compositions and methods for simultaneously treating fibrous substrates with soil resist agents and stain resist agents. More particularly, the present invention relates to chemical enhancers that allow incompatible mixtures of stain and stain repellents to form stable and effective dual action compositions. [0002] Fluoropolymers, which are available as anionic, cationic or nonionic dispersed fluoropolymer emulsions, are commonly used as stain repellents for fibrous substrates such as carpets, rugs and textiles. These stain repellents work by imparting water and oil repellency and stain repellency to the treated substrate. The resistance to acid dye stains, such as food and beverage stains, is provided by solutions of hydrolyzed maleic anhydride copolymers, copolymers of methacrylic acid and its esters, or sulfonated phenolic resins and blends thereof. An example of a food and beverage stain is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/13D06M11/51D06M11/71D06M11/80D06M11/56D06M13/262D06M13/402D06M15/277D06M15/263D06M15/576D06M15/41
CPCD06M11/13D06M11/51D06M11/56D06M11/71D06M11/80D06M13/262D06M13/402D06M15/263D06M15/277D06M15/41D06M15/576
Inventor J·M·马特尼亚克E·P·凯里P·H·费茨格拉德M·R·朗利P·M·墨菲A·F·塞尔夫
Owner EI DU PONT DE NEMOURS & CO
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