US5098774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Divalent metal salts of sulfonated novolak resins and methods for treating fibrous polyamide materials therewith
Assignee: Individual
•
Filing: 1990-04-11
•
Granted: 1992-03-24
•
Expires: 2010-04-11
Abstract
Abstract Compositions comprising normally solid, water-soluble divalent metal salts of partially sulfonated novolak resins are provided. These divalent salts of partially sulfonated novolak resins ae useful for imparting to fibrous polyamide materials stain resistance to natural and synthetic acid colorants. Also provided are methods of preparing these resins, methods of treating fibrous polyamide materials with these resins, and fibrous polyamide materials so treated.
Inventors
- 👤 John C. Chang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:56
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/04; C08G8/08; C08G8/18; D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/41; D06M15/412; Y; Y10; Y10S; Y10S8/00; Y10S8/929; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23986; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969; Y10T442/00; Y10T442/20; Y10T442/2279; Y10T442/2861; Y10T442/2893
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
75 words
A method for imparting fibrous polyamide materials with stain resistance to natural and synthetic acid colorants comprising contacting said materials with an aqueous treating solution comprising a sufficient amount of a sulfonated novolak resin composition comprising a normally solid, water-soluble divalent metal salt of a partially sulfonated novolak resin, said salt being substantially free of sulfonic acid moieties, in the treating solution for a sufficient time at a given temperature to impart the stain resistance.
Claim 2
Independent Claim
75 words
A method for imparting fibrous polyamide materials with stain resistance to natural and synthetic acid colorants comprising contacting said materials with an aqueous treating solution comprising a sufficient amount of a sulfonated novolak resin composition comprising a normally solid, water-soluble divalent metal salt of a partially sulfonated novolak resin, said salt being substantially free of sulfonic acid moieties, in the treating solution for a sufficient time at a given temperature to impart the stain resistance.
Claim 3
Dependent Claim
79 words
The method of claim 1 wherein said contacting step comprises adding to a dyebath, before, during, or after dyeing of the fibrous polyamide material, at least 0.15 weight percent solids based on the weight of the polyamide material of said composition, immersing the polyamide material in the dyebath for a time and temperature sufficient to exhaust said compound onto the polyamide material, and further comprises, removing the treated polyamide material from the dyebath, and drying the removed polyamide material.
Claim 4
Dependent Claim
14 words
The method of claim 2 wherein said dyebath further contains supplemental divalent metal salt.
Claim 5
Dependent Claim
26 words
The method of claim 3 wherein said dyebath contains at least 0.5 weight percent supplemental divalent metal salt based on the weight of the polyamide material.
Claim 6
Dependent Claim
64 words
The method of claim 1 wherein said contacting step comprises applying to the polyamide material an aqueous solution comprising at least 0.15 weight percent solids based on the weight of the polyamide material of said composition, and further comprises, steaming the treated polyamide material for a time sufficient to effect adherence of said composition to the polyamide material, and drying the steamed polyamide material.
Claim 7
Dependent Claim
15 words
The method of claim 3 wherein said aqueous solution further contains supplemental divalent metal salt.
Claim 8
Dependent Claim
30 words
The method of claim 6 wherein said supplemental divalent metal salt is present in an amount of at least 0.5 weight percent based on the weight of the polyamide material.
Claim 9
Dependent Claim
44 words
The method of claim 1 wherein said contacting step comprises padding an aqueous solution comprising at least 0.15 weight percent solids based on the weight of the polyamide material of said composition onto the polyamide material, and further comprises, drying the padded polyamide material.
Claim 10
Dependent Claim
14 words
The method of claim 8 wherein said dyebath further contains supplemental divalent metal salt.
Claim 11
Dependent Claim
26 words
The method of claim 9 wherein said dyebath contains at least 0.5 weight percent supplemental divalent metal salt based on the weight of the polyamide material.
Claim 12
Dependent Claim
51 words
The method of claim 1 wherein said contacting step comprises applying a spin finish composition comprising at least 0.15 weight percent of said sulfonated novolak resin composition to polyamide yarn or fiber by kiss-roll or metering application and further comprises, heat-setting the fiber or yarn having said spin finish composition thereon.
Claim 13
Dependent Claim
25 words
The method of claim 11 further comprising co-applying a fluorochemical for imparting oil and water resistance to said polyamide yarn or fiber, with said compound.
Claim 14
Dependent Claim
16 words
The method of claim 1 wherein said aqueous solution further contains a supplemental divalent metal salt.
Claim 15
Dependent Claim
12 words
A fibrous polyamide material treated according to the method of claim 1.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1995-03-24 | 1995-09-23 | 1996-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-24 | 1999-09-23 | 2000-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-24 | 2003-09-23 | 2004-03-24 | $7700.00 | Window Closed / Lapsed |