Patent US4871604A successfully refreshed from Google Patents.
US4871604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Binder powder carpet fiber
Assignee: Honeywell International Inc
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Filing: 1988-04-04
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Granted: 1989-10-03
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Expires: 2008-04-04
Abstract
Abstract Pile carpet of nylon, polyester, or other pile yarn, is coated with 0.1 to 5 weight percent, based on weight of the pile yarn of a heat-activated adhesive powder having a melting point within the range of 100° to 170° C., preferably 110° to 150° C. For nylon pile yarn a preferred adhesive powder is a ternary copolyamide selected from the group consisting of 6/6,6/12; 6/6,6/11; and 6/6,6/12,12. The powder is heat-activated, for example to 195° C. for about 60 seconds. The treated carpet displays enhanced carpet tuft appearance, improved resilience, carpet surface cleanness, and improved wear performance.
Inventors
- 👤 Lewis R. Hackler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:19
CPC Classifications
D; D06; D06M; D06M23/00; D06M23/08; D06Q; D06Q1/00; D06Q1/12; D06Q1/14; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23921; Y10T428/23979; Y10T428/23986; Y10T428/23993; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2924; Y10T428/2927
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
65 words
Tufted pile carpet having enhanced carpet tuft resilience and improved wear resistance comprising tufted pile yarn selected from the group consisting of wool, cotton, rayon polypropylene, nylon-6, nylon-6,6 and polyester, said pile yarn comprising points of intersecting fiber bonded with 0.1 to 5.0 weight percent, based on weight of the pile yarn, of a heat-activated adhesive with a melting point range of 110 to 170°C.
Claim 2
Dependent Claim
65 words
Tufted pile carpet having enhanced carpet tuft resilience and improved wear resistance comprising tufted pile yarn selected from the group consisting of wool, cotton, rayon polypropylene, nylon-6, nylon-6,6 and polyester, said pile yarn comprising points of intersecting fiber bonded with 0.1 to 5.0 weight percent, based on weight of the pile yarn, of a heat-activated adhesive with a melting point range of 110 to 170°C.
Claim 3
Dependent Claim
31 words
The tufted pile carpet of claim 1 wherein said heat-activated adhesive has a melting range of 110 to 150°C. and is present in an amount of 0.5 to 3.0 weight percent.
Claim 4
Dependent Claim
21 words
The tufted pile carpet of claim 1 wherein said pile yarn is selected from the group consisting of nylon-6 and nylon-6,6.
Claim 5
Dependent Claim
15 words
The tufted pile carpet of claim 3 wherein said heat-activated adhesive is a ternary copolyamide.
Claim 6
Dependent Claim
20 words
The tufted pile carpet of claim 4 wherein said ternary copolyamide has a melting point range of 110 to 150°C.
Claim 7
Dependent Claim
22 words
The tufted pile carpet of claim 4 wherein said ternary copolyamide is selected from the group consisting of 6/6,6/11; 6/6,6/12; and 6/6,6/12,12.
Claim 8
Dependent Claim
118 words
In a method of producing pile carpet comprising incorporating pile yarn selected from the group consisting of wool, cotton, rayon, polypropylene, nylon-6, nylon-6,6 and polyester into a fabric backing to produce a pile surface, the improvement comprising applying to said pile surface 0.1 to 5.0 weight percent, based on weight of the pile yarn, of heat-activated binder powder with a melting point range of 110 to 170° C. under ambient humidity conditions and with a particle size range of 1 to 300 microns, then heating sufficiently to substantially melt said binder powder, then cooling to solidify said melt to create a bond between intersecting fiber within said yarn, thereby providing enhanced carpet tuft resilience and improved wear resistance.
Claim 9
Dependent Claim
118 words
In a method of producing pile carpet comprising incorporating pile yarn selected from the group consisting of wool, cotton, rayon, polypropylene, nylon-6, nylon-6,6 and polyester into a fabric backing to produce a pile surface, the improvement comprising applying to said pile surface 0.1 to 5.0 weight percent, based on weight of the pile yarn, of heat-activated binder powder with a melting point range of 110 to 170° C. under ambient humidity conditions and with a particle size range of 1 to 300 microns, then heating sufficiently to substantially melt said binder powder, then cooling to solidify said melt to create a bond between intersecting fiber within said yarn, thereby providing enhanced carpet tuft resilience and improved wear resistance.
Claim 10
Dependent Claim
19 words
The method of claim 7 wherein said binder powder has a melting point range of 110 to 150° C.
Claim 11
Dependent Claim
19 words
The method of claim 8 wherein said binder powder has a particle size range of 25 to 100 microns.
Claim 12
Dependent Claim
19 words
The method of claim 9 wherein 0.5 to 3.0 weight percent binder powder is applied to said pile surface.
Claim 13
Dependent Claim
19 words
The method of claim 7 wherein said pile yarn is selected from the group consisting of nylon-6 and nylon-6,6.
Claim 14
Dependent Claim
13 words
The method of claim 11 wherein said binder powder is a ternary copolyamide.
Claim 15
Dependent Claim
20 words
The method of claim 12 wherein said ternary copolyamide is selected from the group consisting of 6/6,6/11; 6/6,6/12; and 6/6,6/12,12.
Claim 16
Dependent Claim
19 words
The method of claim 13 wherein said binder powder has a melting point range of 110 to 150° C.
Claim 17
Dependent Claim
19 words
The method of claim 14 wherein said binder powder has a particle size range of 25 to 100 microns.
References Cited (Backward Citations)
US3320113A
Cited
US4731274A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-02 | 1993-04-03 | 1993-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-02 | 1997-04-03 | 1997-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-02 | 2001-04-03 | 2001-10-03 | $7700.00 | Window Closed / Lapsed |