Patent US4421825A successfully refreshed from Google Patents.
Patent US4865885A successfully refreshed from Google Patents.
US4865885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Food color stain blocking fiber agents
Assignee: Crompton and Knowles Corp
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Filing: 1987-06-19
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Granted: 1989-09-12
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Expires: 2007-06-19
Abstract
Abstract This invention relates to a new process and group of products that are useful in preventing nylon and wool fibers, including carpeting and upholstery, from being permanently stained. Fibers can be permanently stained by food colors contained in foods spilled on the fiber. This new group of sulfonated phenol-formaldehyde or naphthol-formaldehyde and anionic surfactant compounds not only block the stain from the fiber but also minimizes any yellowing or discoloration of the treated fibers during the application and during the subsequent exposure to sunlight or commonly used lightfastness testing equipment.
Inventors
- 👤 Michel A. Herlant
- 👤 Alexander S. Kirjanov
- 👤 Vincent W. Bannigan, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:08
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/41; D06M15/412
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
153 words
A synergistic stain blocking composition for preventing a fiber from being permanently stained comprising an effective amount relative to the fiber treated of: (A) a sulfonated phenol-formaldehyde or naphthol-formaldehyde condensation product and an effective amount of: (B) an anionic surface active agent wherein said condensation product contains at least one sulfone group and between 0.5 to 2 moles of sulfonic groups to 4 moles of phenol or naphthol, the percent ratio of (A): (B) is 60-75:, the condensation product has an average molecular weight of less than 1,000 and the anionic surface active agent has the formula: ##STR4## where at least one of the radicals, R, R' and R", is an alkyl chain, branched or ,linear, with 4 to 18 carbons, where one of the radical, R or R' may be H, and where M is a cation selected from the group consisting of H, an alkali metal, NH 4 or an amine.
Claim 2
Dependent Claim
153 words
A synergistic stain blocking composition for preventing a fiber from being permanently stained comprising an effective amount relative to the fiber treated of: (A) a sulfonated phenol-formaldehyde or naphthol-formaldehyde condensation product and an effective amount of: (B) an anionic surface active agent wherein said condensation product contains at least one sulfone group and between 0.5 to 2 moles of sulfonic groups to 4 moles of phenol or naphthol, the percent ratio of (A): (B) is 60-75:, the condensation product has an average molecular weight of less than 1,000 and the anionic surface active agent has the formula: ##STR4## where at least one of the radicals, R, R' and R", is an alkyl chain, branched or ,linear, with 4 to 18 carbons, where one of the radical, R or R' may be H, and where M is a cation selected from the group consisting of H, an alkali metal, NH 4 or an amine.
Claim 3
Dependent Claim
88 words
A process for preventing a fiber from being permanently stained comprising adding an anionic surface active agent to a sulfonated phenol-formaldehyde or a naphthol-formaldehyde condensate containing a sufficient weight ratio of stain blocking composition to fibers and a sufficient amount of a condensation product to impart stain resistance to a fiber finish and maintaining a suitable pH and temperature to a resulting solution, wherein the condensate contains at least one sulfone group and between 0.5 and 2 moles of sulfonic groups to 4 moles of phenol or naphthol.
Claim 4
Dependent Claim
88 words
A process for preventing a fiber from being permanently stained comprising adding an anionic surface active agent to a sulfonated phenol-formaldehyde or a naphthol-formaldehyde condensate containing a sufficient weight ratio of stain blocking composition to fibers and a sufficient amount of a condensation product to impart stain resistance to a fiber finish and maintaining a suitable pH and temperature to a resulting solution, wherein the condensate contains at least one sulfone group and between 0.5 and 2 moles of sulfonic groups to 4 moles of phenol or naphthol.
Claim 5
Dependent Claim
19 words
The composition of claim 1, wherein the sulfonated phenol-formaldehyde or naphthol-formaldehyde condensation product includes sulfonic groups and sulfone groups.
Claim 6
Dependent Claim
31 words
The composition of claim, wherein the concentration of the product is 0.15% to 0.6% on weight of fiber and the mole ratio of sulfonic to sulfone groups is 1:4 to 4:1.
Claim 7
Dependent Claim
21 words
The composition of claim 1, wherein the concentration of the anionic surface active agent is 0.2%-0.8% on the weight of fiber.
Claim 8
Dependent Claim
172 words
A process for preventing a fiber from being permanently stained comprising adding an (A) anionic surface active agent and a (B) sulfonated phenol-formaldehyde or a naphthol-formaldehyde condensate in a sufficient amount to impart stain resistance to a fiber finish, maintaining a pH of 3.5 to 10 and a temperature of about 140°-210° F. (60° C.-99° C.), and treating the fiber wherein the condensate contains at least one sulfone group and between 0.5 and 2 moles of sulfonic groups to 4 moles of phenol or naphthol and said anionic surface active agent has the formula: ##STR5## where at least one of the radicals, R, R' and R" is an alkyl chain, branched or linear, with 4 to 18 carbons, where one of the radicals, R or R', may be H, and where M is a cation selected from the group consisting of H, an alkali metal, NH 4 or an amine the percent ratio of (A): (B) is 60-75: 40-25 and the condensation product has an average molecular weight of less than 1,000.
Claim 9
Dependent Claim
172 words
A process for preventing a fiber from being permanently stained comprising adding an (A) anionic surface active agent and a (B) sulfonated phenol-formaldehyde or a naphthol-formaldehyde condensate in a sufficient amount to impart stain resistance to a fiber finish, maintaining a pH of 3.5 to 10 and a temperature of about 140°-210° F. (60° C.-99° C.), and treating the fiber wherein the condensate contains at least one sulfone group and between 0.5 and 2 moles of sulfonic groups to 4 moles of phenol or naphthol and said anionic surface active agent has the formula: ##STR5## where at least one of the radicals, R, R' and R" is an alkyl chain, branched or linear, with 4 to 18 carbons, where one of the radicals, R or R', may be H, and where M is a cation selected from the group consisting of H, an alkali metal, NH 4 or an amine the percent ratio of (A): (B) is 60-75: 40-25 and the condensation product has an average molecular weight of less than 1,000.
Claim 10
Dependent Claim
26 words
The process of claim 6, wherein the ratio of the sulfonated phenol-formaldehyde or naphthol formaldehyde condensate to the anionic surface active agents is 4:1 to 0.3:1.
Claim 11
Dependent Claim
16 words
The process of claim 6, wherein the pH of the solution is no higher than 6.
Claim 12
Dependent Claim
17 words
The process of claim 6, wherein said weight ratio is in the range of 0.5:1 to 50:1.
Claim 13
Dependent Claim
11 words
The process of claim 6, wherein the fiber is a polyamide.
Claim 14
Dependent Claim
14 words
The process of claim 6, wherein the polyamide fiber is nylon 6 to 66.
Claim 15
Dependent Claim
53 words
The process of claim 6, wherein the process is achieved during exhaust dyeing, or as an exhaust aftertreatment following exhaust dyeing, or during both exhaust dyeing and as a exhaust treatment after application, or during continuous dyeing, or as a continuous aftertreatment, or during both exhaust dyeing and as a continuous aftertreatment application.
Claim 16
Dependent Claim
19 words
The process of claim 6, wherein the sulfonated phenol-formaldehyde or naphthol-formaldehyde condensation product includes sulfonic groups and sulfone groups.
Claim 17
Dependent Claim
61 words
The process of claim 6, wherein the anionic surface active agent is: ##STR6## where at least one of the radicals, R and R', is an alkyl chain, branched or linear, with 4 to 18 carbons, where one of the radicals, R or R', may be H and where M is H, or a alkali metal or NH 4 or a amine.
Claim 18
Dependent Claim
48 words
The process of claim 6, wherein the anionic surface active agent is an alkyl-aryl sulfonate of the following formula: ##STR7## where R=alkyl chain, branched or linear, with 4 to 18 carbons, preferably 10 to 18 carbons, and M=H, or an alkali metal, or NH 4 or an amine.
References Cited (Backward Citations)
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| 3.5 Years (Year 4) | 1992-09-11 | 1993-03-13 | 1993-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-11 | 1997-03-13 | 1997-09-12 | $3760.00 | Window Closed / Lapsed |
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