US4576665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making a hot melt adhesive bonded pile fabric
Assignee: Milliken Research Corp
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Filing: 1984-04-13
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Granted: 1986-03-18
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Expires: 2004-04-13
Abstract
Abstract A hot melt adhesive bonded pile fabric is provided which comprises a liquid permeable base layer; a pile forming yarn adjacent to the base layer in pile forming fashion but not tufted through the base layer; the pile forming element having been bonded to the base layer by means of a hot melt adhesive applied to the back of said base layer. A method and apparatus for making fusion bonded, pile fabrics are also provided.
Inventors
- 👤 Greville Machell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:50
CPC Classifications
D; D04; D04H; D04H11/00; D04H11/04; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23979; Y10T428/23986; Y10T428/23993
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A method for making a hot melt adhesive bonded pile fabric which comprises: positioning two continuous, liquid-permeable base layers in a passage where they lie in substantial parallel relationship to one another at a predetermined distance from one another; driving at least one continuous pile forming yarn by folder blades alternatively against the opposing surfaces of said base layers when they are at or near the entrance to the above mentioned passage in such a way as to position the pile forming yarn relative to the base layers and to fold it zig-zag without tufting said pile-forming yarns through said base layers; thereafter applying to the back of said base layers a hot melt adhesive; forcing said hot melt adhesive through said base layers so that said hot melt adhesive contacts said pile forming yarn; cooling said hot melt adhesive to a temperature below its softening point to thereby bond said pile forming yarn to said base layers; and cutting said pile forming yarns to form two continuous hot melt adhesive bonded products.
Claim 2
Independent Claim
173 words
A method for making a hot melt adhesive bonded pile fabric which comprises: positioning two continuous, liquid-permeable base layers in a passage where they lie in substantial parallel relationship to one another at a predetermined distance from one another; driving at least one continuous pile forming yarn by folder blades alternatively against the opposing surfaces of said base layers when they are at or near the entrance to the above mentioned passage in such a way as to position the pile forming yarn relative to the base layers and to fold it zig-zag without tufting said pile-forming yarns through said base layers; thereafter applying to the back of said base layers a hot melt adhesive; forcing said hot melt adhesive through said base layers so that said hot melt adhesive contacts said pile forming yarn; cooling said hot melt adhesive to a temperature below its softening point to thereby bond said pile forming yarn to said base layers; and cutting said pile forming yarns to form two continuous hot melt adhesive bonded products.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-17 | 1989-09-16 | 1990-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-17 | 1993-09-16 | 1994-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-17 | 1997-09-16 | 1998-03-18 | $7700.00 | Window Closed / Lapsed |