EP0268374A2
Expired / Lapsed
EP
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Method for treating fibrous polyamide materials with divalent metal salts of sulfonated novolak resins.
Assignee: 3M Co
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Filing: 1987-10-15
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Granted: —
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Expires: 2007-10-15
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 are useful for imparting to fibrous poloyamide 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 Cheng-Chung C/O Minnesota Mining And Chang
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 22:50
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/41; D06M15/412; C; C08; C08G; C08G8/00; C08G8/04; C08G8/08; C08G8/18
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
28 words
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.
Claim 2
Dependent Claim
28 words
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.
Claim 3
Dependent Claim
44 words
The composition of claim 1 wherein said divalent metal salt of the partially sulfonated novolak is the reaction product of a divalent metal oxide or hydroxide, or a divalent salt of a weak acid, and a partially sulfonated novolak resin in sulfonic acid form.
Claim 4
Dependent Claim
42 words
The composition of claim 2 wherein said divalent metal oxide or hydroxide is the oxide or hydroxide of calcium, magnesium, or zinc and said divalent metal salts of weak acids are carbonates, bicarbonates, acetates, formates and borates of calcium, magnesium and zinc.
Claim 5
Dependent Claim
34 words
The composition of claim 2 wherein said partially sulfonated novolak resin in sulfonic acid form is the reaction product of a sulfonated aromatic compound, a non-sulfonated phenolic compound, and an aldehyde or aldehyde precursor.
Claim 6
Dependent Claim
65 words
A method for preparing the composition of claim 1 comprising reacting an aromatic compound with a sulfonating agent to form a sulfonated aromatic compound, condensing the sulfonated aromatic compound with a non-sulfonated phenolic compound and an aldehyde or aldehyde precursor to form a sulfonated condensate, and reacting the condensate with a divalent metal oxide or hydroxide, or a divalent metal salt of a weak acid.
Claim 7
Dependent Claim
42 words
The method of claim 5 wherein said divalent metal oxide or hydroxide is an oxide or hydroxide of calcium, magnesium, or zinc and said divalent metal salts of weak acids are carbonates, bicarbonates, acetates, formates and borates of calcium, magnesium and zinc.
Claim 8
Dependent Claim
24 words
The method of claim 5 wherein said sulfonated aromatic compound is phenolsulfonic acid, said non-sulfonated phenolic compound is 4,4ʹ-dihydroxydiphenylsulfone, and said aldehyde is formaldehyde.
Claim 9
Dependent Claim
24 words
The method of claim 5 wherein said sulfonated aromatic compound is sulfonated 4,4ʹ-dihydroxydiphenylsulfone, said non-sulfonated phenolic compound is 4,4ʹ-dihydroxydiphenylsulfone, and said aldehyde is formaldehyde.
Claim 10
Dependent Claim
27 words
A method for preparing the composition of claim 1 comprising reacting a sulfonated aromatic divalent salt with a non-sulfonated phenolic compound and an aldehyde or aldehyde precursor.
Claim 11
Dependent Claim
18 words
The method of claim 9 wherein said sulfonated aromatic divalent salt is a calcium, magnesium, or zinc salt.
Claim 12
Dependent Claim
51 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 sufficient amount of the composition of claim 1 in the treating solution for a sufficient time at a given temperature to impart the stain resistance.
Claim 13
Dependent Claim
79 words
The method of claim 11 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 14
Dependent Claim
64 words
The method of claim 11 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 15
Dependent Claim
44 words
The method of claim 11 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 16
Dependent Claim
51 words
The method of claim 11 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 17
Dependent Claim
25 words
The method of claim 15 further comprising co-applying a fluorochemical for imparting oil and water resistance to said polyamide yarn or fiber, with said compound.
Claim 18
Dependent Claim
12 words
A fibrous polyamide material treated according to the method of claim 11.
Claim 19
Dependent Claim
23 words
An aqueous solution for imparting to fibrous polyamide materials stain resistance to natural and snythetic acid colorants, comprising the composition of claim 1.
References Cited (Backward Citations)
No citation records indexed.
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