EP0016658A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Soil-resistant yarns, aqueous finish for yarns, and process for producing a soil-resistant yarn
Assignee: Monsanto Co
•
Filing: 1980-03-25
•
Granted: —
•
Expires: 2000-03-25
Abstract
Abstract Soil-resistant carpet yarns are provided by providing yarns coated with a soil retardant, for example, a fluorochemical, and a retaining agent, for example, zirconium oxide. Such yarns when used in the manufacture of carpets retain their soil-resistant properties during the carpet dyeing and finishing operation; the zirconium oxide in some way promotes the retention of the fluorochemical on the yarn.
Inventors
- 👤 Andrew Irwin Smith
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 09:33
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277; D06M11/00; D06M11/32; D06M11/36; D06M11/46; D06M2101/00; D06M2101/02; D06M2101/04; D06M2101/06; D06M2101/10; D06M2101/12; D06M2101/16; D06M2101/18; D06M2101/26; D06M2101/30; D06M2101/32; D06M2101/34
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
39 words
A yarn having a coating thereon comprising (i) an effective amount of a soil retardant and (ii) a retaining agent, said coating being characterized in that the retaining agent enhances the retention of the soil retardant on said yarn.
Claim 2
Dependent Claim
39 words
A yarn having a coating thereon comprising (i) an effective amount of a soil retardant and (ii) a retaining agent, said coating being characterized in that the retaining agent enhances the retention of the soil retardant on said yarn.
Claim 3
Dependent Claim
12 words
The yarn of claim 1 wherein said soil retardant is a fluorochemical.
Claim 4
Dependent Claim
36 words
The yarn of claim 2 wherein said fluorochemical contains at least one aliphatic radical having 3 to 20 carbon atoms and a carbon-bonded fluorine content of 40 to 78% based on the weight of said radical.
Claim 5
Dependent Claim
12 words
The yarn of claim 3 wherein said radical is a perfluoroalkyl radical.
Claim 6
Dependent Claim
13 words
The yarn of claim 1 wherein said retaining agent is a metal oxide.
Claim 7
Dependent Claim
18 words
The yarn of claim 5 wherein the metal oxide is selected from the oxides of tin and zirconium.
Claim 8
Dependent Claim
13 words
The yarn of claim 6 wherein the metal oxide is a zirconium oxide.
Claim 9
Dependent Claim
13 words
The yarn of claim 7 wherein the metal oxide is a tin oxide.
Claim 10
Dependent Claim
12 words
The yarn of claim 7 wherein said soil retardant is a fluorochemical.
Claim 11
Dependent Claim
36 words
The yarn of claim 9 wherein said fluorochemical contains at least one aliphatic radical having 3 to 20 carbon atoms and a carbon-bonded fluorine content of 40 to 78% based on the weight of said radical.
Claim 12
Dependent Claim
11 words
The yarn of claim 10 wherein said radical. is a perfluororadical.
Claim 13
Dependent Claim
53 words
An aqueous finish for yarn formed by adding a soil retardant, a water-soluble metal compound and a polyol to water, said finish being characterized in that when applied to a yarn and the yarn dried, the soiling rate of said yarn is slower than when said metal compound is omitted from said finish.
Claim 14
Dependent Claim
53 words
An aqueous finish for yarn formed by adding a soil retardant, a water-soluble metal compound and a polyol to water, said finish being characterized in that when applied to a yarn and the yarn dried, the soiling rate of said yarn is slower than when said metal compound is omitted from said finish.
Claim 15
Dependent Claim
12 words
The finish of claim 12 wherein the soil retardant is a fluorochemical.
Claim 16
Dependent Claim
36 words
The finish of claim 13 wherein said fluorochemical contains at least one aliphatic radical having 3 to 20 carbon atoms and a carbon-bonded fluorine content of 40 to 78% based on the weight of said radical.
Claim 17
Dependent Claim
12 words
The finish of claim 14 wherein said radical is a perfluoroalkyl radical.
Claim 18
Dependent Claim
17 words
The finish of claim 13 wherein said water-soluble metal compound is a zirconium salt or tin salt.
Claim 19
Dependent Claim
26 words
The finish of claim 16 wherein said polyol is polyethylene glycol having a molecular weight between 200 and 2000 and is a liquid below about 60°C.
Claim 20
Dependent Claim
11 words
The finish of claim 17 wherein said salt is zirconium acetate.
Claim 21
Dependent Claim
58 words
A process for producing a soil-resistant yarn comprising applying to the yarn an aqueous finish formed by adding a soil retardant, a water-soluble metal compound and a polyol to water, and then drying the yarn whereby a yarn coated with said retardant and a metal oxide is obtained, said metal oxide being derived from said water-soluble metal compound.
Claim 22
Dependent Claim
58 words
A process for producing a soil-resistant yarn comprising applying to the yarn an aqueous finish formed by adding a soil retardant, a water-soluble metal compound and a polyol to water, and then drying the yarn whereby a yarn coated with said retardant and a metal oxide is obtained, said metal oxide being derived from said water-soluble metal compound.
Claim 23
Dependent Claim
11 words
The process of claim 19 wherein said retardant is a fluorochemical.
Claim 24
Dependent Claim
16 words
The process of claim 19 wherein the water-soluble metal compound is a zirconium or tin salt.
Claim 25
Dependent Claim
36 words
The process of claim 20 wherein said fluorochemical contains at least one aliphatic radical having 3 to 20 carbon atoms and a carbon-bonded fluorine content of 40 to 78 based on the weight of said radical.
Claim 26
Dependent Claim
12 words
The process of claim 22 wherein said radical is a perfluoroalkyl radical.
Claim 27
Dependent Claim
27 words
The process of claim 19 wherein said polyol is a polyethylene glycol having a molecular weight between 200 and 2000 and is a liquid below about 60°C.
Claim 28
Dependent Claim
12 words
The process of claim 21 wherein said salt is a zirconium acetate.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.