US5328766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stain-resistant, lightfast polyamide textile products and woolen goods and compositions and processes therefor
Assignee: Bankers Trust Co
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Filing: 1992-12-04
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Granted: 1994-07-12
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Expires: 2012-12-04
Abstract
Abstract This invention relates to an improved process for providing fibrous polyamide materials and wool materials with stain resistance and superior lightfastness that are more durable against alkaline washing. This is accomplished by treating the materials with an aqueous solution comprising a combination of a partially sulfonated novolak resin, methacrylic polymer and a soluble aluminum compound or a combination of a partially sulfonated novolak resin and a soluble aluminum compound. This invention additionally relates to polyamide and wool materials as treated by the aqueous solution for imparting stain resistance and superior lightfastness.
Inventors
- 👤 Richard D. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:22
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/58; D06M11/64; D06M11/07; D06M11/11; D06M11/17; D06M11/51; D06M11/55; D06M11/57; D06M13/00; D06M13/10; D06M13/224; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/37; D06M15/39; D06M15/41; D06M15/412; Y; Y10; Y10S; Y10S8/00; Y10S8/17; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23986; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/294; Y10T428/2958; Y10T428/2964; Y10T428/2967; Y10T428/2969; Y10T442/00; Y10T442/20; Y10T442/2549; Y10T442/2574
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
60 words
A treated fibrous polyamide substrate with resistance to staining by acid colorants and superior lightfastness durable against alkaline washing comprising a fibrous polyamide substrate coated with a formulation comprising a) a partially sulfonated novolak resin, b) polymethacrylic acid, copolymers of methacrylic acid, or combinations of said polymethacrylic acid and said copolymers of methacrylic acid, and c) a water-soluble aluminum compound.
Claim 2
Dependent Claim
60 words
A treated fibrous polyamide substrate with resistance to staining by acid colorants and superior lightfastness durable against alkaline washing comprising a fibrous polyamide substrate coated with a formulation comprising a) a partially sulfonated novolak resin, b) polymethacrylic acid, copolymers of methacrylic acid, or combinations of said polymethacrylic acid and said copolymers of methacrylic acid, and c) a water-soluble aluminum compound.
Claim 3
Dependent Claim
25 words
The treated substrate of claim 1 wherein said sulfonated novolak resin comprises a sulfonated condensation product of at least one phenolic compound and an aldehyde.
Claim 4
Dependent Claim
21 words
The treated substrate of claim 2 wherein said phenolic compound is a bis(hydroxyphenyl) sulfone and said aldehyde is formaldehyde or acetaldehyde.
Claim 5
Dependent Claim
11 words
The treated substrate of claim 1 wherein (b) is polymethacrylic acid.
Claim 6
Dependent Claim
59 words
The treated substrate of claim 1 wherein copolymer is a copolymer of methacrylic acid and a comonomer which is a monocarboxylic acid, a polycarboxylic acid, an anhydride, a substituted or unsubstituted ester or amide of a carboxylic acid or anhydride, a nitrile, a vinyl monomer, a vinylidene monomer, a monoolefinic or polyolefinic monomer, a heterocyclic monomer, or combinations thereof.
Claim 7
Dependent Claim
27 words
The treated substrate of claim 5 wherein said comonomer is alkyl acrylate having 1 to 4 alkyl carbon atoms, itaconic acid, sodium sulfostyrene, or sulfated castor oil.
Claim 8
Dependent Claim
36 words
The treated substrate of claim 5 wherein said copolymer is a terpolymer of methacrylic acid, sodium sulfostyrene, and styrene; methacrylic acid, sulfated castor oil, and acrylic acid; or methacrylic acid, acrylic acid, and sulfated castor oil.
Claim 9
Dependent Claim
22 words
The treated substrate of claim 1 wherein methacrylic acid comprises about 30 to 100 weight percent of said copolymer of methacrylic acid.
Claim 10
Dependent Claim
36 words
The treated substrate of claim 1 wherein the lower 90 weight percent of said polymethacrylic acid and said copolymers of methacrylic acid have a weight average molecular weight in the range of about 2500 to 250,000.
Claim 11
Dependent Claim
36 words
The treated substrate of claim 1 wherein the lower 90 weight percent of said polymethacrylic acid and said copolymers of methacrylic acid have a number average molecular weight in the range of about 500 to 20,000.
Claim 12
Dependent Claim
76 words
The treated substrate of claim 1 wherein said substrate is nylon 66 and said sulfonated novolak resin is present in an amount of at least about 0.01 weight percent, said polymethacrylic acid or said copolymers of methacrylic acid are present in an amount of at least about 0.06 weight percent, and the water-soluble aluminum compound is present in an amount of at least about 0.05 weight percent based on the weight of the polyamide fibrous substrate.
Claim 13
Dependent Claim
75 words
The treated substrate of claim 1 wherein said substrate is nylon 6 and said sulfonated novolak resin is present in an amount of at least about 0.03 weight percent, polymethacrylic acid or said copolymers of methacrylic acid are present in an amount of at least about 0.12 weight percent, and the water-soluble aluminum compound is present in an amount of at least about 0.05 weight percent based on the weight of the polyamide fibrous substrate.
Claim 14
Dependent Claim
15 words
The treated substrate of claim 1 wherein said water-soluble aluminum compound is hydrated aluminum sulfate.
Claim 15
Dependent Claim
35 words
A treated fibrous polyamide substrate with resistance to staining by acid colorants consisting of a fibrous polyamide substrate coated with a formulation comprising a) a partially sulfonated novolak resin and b) a water-soluble aluminum compound.
Claim 16
Dependent Claim
35 words
A treated fibrous polyamide substrate with resistance to staining by acid colorants consisting of a fibrous polyamide substrate coated with a formulation comprising a) a partially sulfonated novolak resin and b) a water-soluble aluminum compound.
Claim 17
Dependent Claim
25 words
The treated substrate of claim 14 wherein said sulfonated novolak resin comprises a sulfonated condensation product of at least one phenolic compound and an aldehyde.
Claim 18
Dependent Claim
21 words
The treated substrate of claim 15 wherein said phenolic compound is a bis(hydroxyphenyl) sulfone and said aldehyde is formaldehyde or acetaldehyde.
Claim 19
Dependent Claim
56 words
The treated substrate of claim 14 wherein said substrate is nylon 66 and said sulfonated novolak resin is present in an amount of about at least about 0.01 weight percent, and the water-soluble aluminum compound is present in an amount of at least about 0.05 weight percent based on the weight of the polyamide fibrous substrate.
Claim 20
Dependent Claim
55 words
The treated substrate of claim 14 wherein said substrate is nylon 6 and said sulfonated novolak resin is present in an amount of at least about 0.03 weight percent, and the water-soluble aluminum compound is present in an amount of at least about 0.05 weight percent based on the weight of the polyamide fibrous substrate.
Claim 21
Dependent Claim
15 words
The treated substrate of claim 14 wherein said water-soluble aluminum compound is hydrated aluminum sulfate.
Claim 22
Dependent Claim
58 words
A treated wool substrate with resistance to staining by acid colorants and superior lightfastness durable against alkaline washing comprising a wool substrate coated with a formulation comprising a) a partially sulfonated novolak resin, b) polymethacrylic acid, copolymers of methacrylic acid, or combinations of said polymethacrylic acid and said copolymers of methacrylic acid, and c) a water-soluble aluminum compound.
Claim 23
Dependent Claim
58 words
A treated wool substrate with resistance to staining by acid colorants and superior lightfastness durable against alkaline washing comprising a wool substrate coated with a formulation comprising a) a partially sulfonated novolak resin, b) polymethacrylic acid, copolymers of methacrylic acid, or combinations of said polymethacrylic acid and said copolymers of methacrylic acid, and c) a water-soluble aluminum compound.
Claim 24
Dependent Claim
32 words
A treated wool substrate with resistance to staining by acid colorants comprising a wool substrate coated with a formulation comprising a) a partially sulfonated novolak resin and b) a water-soluble aluminum compound.
Claim 25
Dependent Claim
32 words
A treated wool substrate with resistance to staining by acid colorants comprising a wool substrate coated with a formulation comprising a) a partially sulfonated novolak resin and b) a water-soluble aluminum compound.
References Cited (Backward Citations)
US3717500A
Cited
US4021398A
Cited
US4310426A
Cited
US4592940A
Cited
US4501591A
Cited
US4875901A
Cited
US4883839A
Cited
US4822373A
Cited
US4937123A
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1997-07-11 | 1998-01-10 | 1998-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-11 | 2002-01-10 | 2002-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-11 | 2006-01-10 | 2006-07-12 | $7700.00 | Window Closed / Lapsed |