Patent US4906507A successfully refreshed from Google Patents.
US4906507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite adhesive webs and their production
Assignee: Freudenberg Performance Materials LP
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Filing: 1987-03-13
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Granted: 1990-03-06
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Expires: 2007-03-13
Abstract
Abstract Disclosed is a composite adhesive web and a process for the production of such a web. The thermally adhesive web of the invention is comprised of a composite of randomly arranged thermoplastic filaments or, parallel thermoplastic filaments interconnected by randomly arranged thermoplastic fibers or filaments, and a fibrous thermal adhesive nonwoven sheet containing thermoplastic fibers, preferably low melting thermally adhesive fibers.
Inventors
- 👤 Peter S. Grynaeus
- 👤 Gerhard Schaut
- 👤 Chester J. Petkiewicz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:42
CPC Classifications
D; D04; D04H; D04H5/00; D04H5/02; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24124; Y10T428/24942; Y10T428/28; Y10T428/2813; Y10T428/2817; Y10T428/2826; Y10T442/00; Y10T442/60; Y10T442/69; Y10T442/692
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
46 words
A composite comprising a thermally adhesive nonwoven sheet and randomly arranged fusible polymeric filaments wherein the thermally adhesive nonwoven sheet contains 10-90 wt. % of fusible polymeric fibers with a melt range of 75° to 140° C. and has openings of 0.5 to 5 mm wide.
Claim 2
Dependent Claim
46 words
A composite comprising a thermally adhesive nonwoven sheet and randomly arranged fusible polymeric filaments wherein the thermally adhesive nonwoven sheet contains 10-90 wt. % of fusible polymeric fibers with a melt range of 75° to 140° C. and has openings of 0.5 to 5 mm wide.
Claim 3
Dependent Claim
20 words
The composite of claim 1, wherein the total content of thermal adhesive or fusible fibers and filaments is maximum 98%.
Claim 4
Dependent Claim
20 words
The composite of claim 1, wherein the thermal adhesive filaments are co-, ter- or higher polyesters or polyamides or PVC.
Claim 5
Dependent Claim
25 words
The composite of claim 1, wherein the thermally adhesive nonwoven sheet is bonded by heat and/or pressure or dispersed polymeric binders or a combination thereof.
Claim 6
Dependent Claim
30 words
The composite of claim 1, wherein the thermally adhesive nonwoven sheet has randomly arranged openings, which enable the penetration of the fusible polymeric components to either side of the nonwoven.
Claim 7
Dependent Claim
17 words
The composite of claim 1, wherein is produced with or without a use of an external carrier.
Claim 8
Dependent Claim
18 words
The composite of claim 1, wherein the thermally adhesive nonwoven sheet is 5-60% by weight of the composite.
Claim 9
Dependent Claim
30 words
The composite of claim 1, wherein the fusible polymeric fibers of the thermally adhesive web and the thermally adhesive nonwoven sheet have the same or different chemical and physical properties.
Claim 10
Dependent Claim
15 words
The composite of claim 1, having a weight of about 10 g/sq.m to 180 g/sq.m.
Claim 11
Dependent Claim
17 words
The composite of claim 1 in the form a sheet or in the form of a tape.
Claim 12
Dependent Claim
14 words
The composite of claim 1 wherein the openings are 1 to 50 mm long.
Claim 13
Dependent Claim
29 words
A composite comprising a fibrous thermally adhesive nonwoven sheet having openings of 0.5 to 5 mm wide and parallel fusible polymeric filaments interconnected by randomly arranged fusible polymeric filaments.
Claim 14
Dependent Claim
29 words
A composite comprising a fibrous thermally adhesive nonwoven sheet having openings of 0.5 to 5 mm wide and parallel fusible polymeric filaments interconnected by randomly arranged fusible polymeric filaments.
Claim 15
Dependent Claim
19 words
The composite of claim 12, wherein the thermally adhesive nonwoven sheet contains 10-90 wt. % of fusible polymeric fibers.
Claim 16
Dependent Claim
20 words
The composite of claim 12, wherein the total content of thermal adhesive or fusible fibers and filaments is maximum 98%.
Claim 17
Dependent Claim
37 words
A thermally adhesive nonwoven sheet comprising 10-90 wt. % of thermally adhesive or fusible fibers wherein the thermally adhesive fibers have a melt range of 75°-140° C. and the sheet has openings of 0.5 to 5 mm.
Claim 18
Dependent Claim
37 words
A thermally adhesive nonwoven sheet comprising 10-90 wt. % of thermally adhesive or fusible fibers wherein the thermally adhesive fibers have a melt range of 75°-140° C. and the sheet has openings of 0.5 to 5 mm.
Claim 19
Dependent Claim
27 words
The thermally adhesive nonwoven sheet of claim 15, wherein the thermally adhesive fibers are co-, ter- or higher polyesters or co-, ter- or higher polyamides or PVC.
Claim 20
Dependent Claim
27 words
The thermally adhesive nonwoven sheet of claim 15, wherein the thermally adhesive sheet is bonded by heat and/or pressure or dispersed polymeric binders or a combination thereof.
Claim 21
Dependent Claim
15 words
The thermally adhesive nonwoven sheet of claim 15, having a weight of about 9-110 g/sq.m.
Claim 22
Dependent Claim
20 words
The thermally adhesive nonwoven sheet of claim 15 wherein the openings have a ratio of width of length of 1:20-100.
References Cited (Backward Citations)
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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) | 1993-03-05 | 1993-09-04 | 1994-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-05 | 1997-09-04 | 1998-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-05 | 2001-09-04 | 2002-03-06 | $7700.00 | Window Closed / Lapsed |