US4520059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ionomer-coated yarns and their use in papermakers wet press felts
Assignee: SYNSTRAND Inc
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Filing: 1983-12-16
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Granted: 1985-05-28
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Expires: 2003-12-16
Abstract
Abstract A textile fabric comprising synthetic yarn coated with an ionomer resin, fabric made from the textile fiber and a felt for use in papermaking machines comprising a mesh base and a fibrous upper layer, the mesh base comprising the fabric made from the textile fiber which is an ionomer resin-coated synthetic yarn.
Inventors
- 👤 James D. Worrall
- 👤 Ronald E. Tefft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:50
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/02; B32B5/08; B32B5/22; B32B5/24; B32B5/26; B32B5/022; B32B5/024; D; D21; D21F; D21F1/00; D21F1/0027; D21F7/00; D21F7/08; D21F7/083; B32B2255/00; B32B2255/02; B32B2255/26; B32B2262/00; B32B2262/02; B32B2262/0261; B32B2262/0276; B32B2307/00; B32B2307/50; B32B2307/554; Y; Y10; Y10S; Y10S162/00; Y10S162/90; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/24091; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/103
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
31 words
A papermakers' felt of the batt-on-mesh type having a mesh layer which comprises synthetic yarns coated with an ionomer resin so that said mesh layer is resistant to abrasion and compression.
Claim 2
Dependent Claim
31 words
A papermakers' felt of the batt-on-mesh type having a mesh layer which comprises synthetic yarns coated with an ionomer resin so that said mesh layer is resistant to abrasion and compression.
Claim 3
Dependent Claim
16 words
The papermakers' fiber of claim 1 wherein said synthetic yarn is selected from polyamides and polyesters.
Claim 4
Dependent Claim
13 words
The papermakers' felt of claim 1 wherein said synthetic yarn is a polyamide.
Claim 5
Dependent Claim
20 words
The papermakers' felt of claim 1 wherein said ionomer resin is a metal salt of an ethylene-vinyl carboxylic acid copolymer.
Claim 6
Dependent Claim
19 words
The papermakers' felt of claim 4 wherein the vinyl carboxylic acid is selected from acrylic acid and methacrylic acid.
Claim 7
Dependent Claim
15 words
The papermakers' felt of claim 1 wherein said synthetic yarn is a highly twisted yarn.
Claim 8
Dependent Claim
17 words
The papermakers' felt according to claim 1 wherein said synthetic yarns coated with ionomer resin are non-woven.
Claim 9
Dependent Claim
17 words
The papermakers' felt according to claim 1 wherein said synthetic yarn is selected from nylon and polyester.
Claim 10
Dependent Claim
12 words
The felt according to claim 8 wherein said synthetic yarn is nylon.
Claim 11
Dependent Claim
16 words
The papermarkers' felt of claim 1 wherein said synthetic yarns coated with ionomer resin are woven.
Claim 12
Independent Claim
30 words
A method of making an ionomer-coated synthetic yarn comprising extrusion-coating a synthetic yarn with an ionomer resin in such a manner that said yarn is resistant to abrasion and compression.
Claim 13
Independent Claim
30 words
A method of making an ionomer-coated synthetic yarn comprising extrusion-coating a synthetic yarn with an ionomer resin in such a manner that said yarn is resistant to abrasion and compression.
Claim 14
Dependent Claim
14 words
The method of claim 11 wherein said extrusion coating is a crosshead extrusion coating.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-05-27 | 1988-11-26 | 1989-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-27 | 1992-11-26 | 1993-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-27 | 1996-11-26 | 1997-05-28 | $7700.00 | Window Closed / Lapsed |