Patent US4558888A successfully refreshed from Google Patents.
US4558888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strip of binding tape
Assignee: 3M Co
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Filing: 1985-04-04
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Granted: 1985-12-17
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Expires: 2005-04-04
Abstract
Abstract A binding tape for binding the shingled edges of sheets has a supple tough and flexible nonwoven fibrous backing coated on one surface with a pressure-sensitive adhesive and with a barrier coat to seal the backing on the other surface. A low adhesion backsize is coated on the backing to permit winding or stacking strips of tape. Tabs adhered to the ends of the strips aid in locating the strips in relation to the shingled edges.
Inventors
- 👤 Gary R. Hanson
- 👤 George R. Rabuse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:51
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/20; C09J7/21; C09J2400/00; C09J2400/20; C09J2400/26; C09J2400/263; Y; Y10; Y10S; Y10S206/00; Y10S206/813; Y10S412/00; Y10S412/901; Y10T; Y10T428/00; Y10T428/15; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/28; Y10T428/2839
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
69 words
A strip of binding tape comprising a strip of porous non-woven fibrous backing of polymeric material, a coating of an acrylic pressure-sensitive adhesive on one surface of the backing, and means defining a tab on at least one end of a said strip covering at least a portion of said adhesive, said tab being separable from said strip and having an opening therein for alignment of a said strip.
Claim 2
Dependent Claim
69 words
A strip of binding tape comprising a strip of porous non-woven fibrous backing of polymeric material, a coating of an acrylic pressure-sensitive adhesive on one surface of the backing, and means defining a tab on at least one end of a said strip covering at least a portion of said adhesive, said tab being separable from said strip and having an opening therein for alignment of a said strip.
Claim 3
Dependent Claim
32 words
A strip of binding tape according to claim 1 wherein a low-adhesion backsize is placed on said backing of polymeric material to permit winding and stacking of a plurality of said strips.
Claim 4
Dependent Claim
21 words
A strip of binding tape according to claim 2 wherein the sides of said strip have a tack eliminator coated thereon.
Claim 5
Dependent Claim
108 words
A pad of pressure-sensitive adhesive tape strips positioned in a stack for use in binding sheets together, said strips comprising a backing of a nonwoven fibrous material covered on one surface with an acrylic copolymer pressure-sensitive adhesive, barrier coat means on the opposite surface of said backing for restricting adhesive migration through the backing, and a low-adhesion backsize on said barrier coat means, each strip having attached to each end thereof against a portion of the adhesive a strip of tab material to form a tab, at least one of said tabs being formed with an opening therein with the openings in the tabs being in aligned position.
Claim 6
Dependent Claim
108 words
A pad of pressure-sensitive adhesive tape strips positioned in a stack for use in binding sheets together, said strips comprising a backing of a nonwoven fibrous material covered on one surface with an acrylic copolymer pressure-sensitive adhesive, barrier coat means on the opposite surface of said backing for restricting adhesive migration through the backing, and a low-adhesion backsize on said barrier coat means, each strip having attached to each end thereof against a portion of the adhesive a strip of tab material to form a tab, at least one of said tabs being formed with an opening therein with the openings in the tabs being in aligned position.
Claim 7
Dependent Claim
20 words
A pad according to claim 4 wherein the sides of the stack of strips are treated with a tack eliminator.
Claim 8
Dependent Claim
34 words
A pad according to claim 5 wherein the tack eliminator affords a crosslinking of the adhesive exposed on the edge of the tape strips to restrict adhesive migration from the edges of the pad.
Claim 9
Dependent Claim
14 words
A pad according to claim 5 wherein the tack eliminator is tetra n-butyl titanate.
Claim 10
Dependent Claim
86 words
A strip of binding tape conprising a porous nonwoven fibrous backing of polymeric material, a coating of an acrylic pressure sensitive adhesive on one surface of the backing, a barrier layer on the opposite surface of the backing to cover the surface of the backing and interstices between the fibers to restrict adhesive migration through said backing, and wherein a tab is adhered one to each end of a said strip with the adhesive at the ends of said strip contacting a surface of the tab.
Claim 11
Dependent Claim
86 words
A strip of binding tape conprising a porous nonwoven fibrous backing of polymeric material, a coating of an acrylic pressure sensitive adhesive on one surface of the backing, a barrier layer on the opposite surface of the backing to cover the surface of the backing and interstices between the fibers to restrict adhesive migration through said backing, and wherein a tab is adhered one to each end of a said strip with the adhesive at the ends of said strip contacting a surface of the tab.
Claim 12
Dependent Claim
26 words
A strip of binding tape according to claim 8 wherein said barrier layer is a polymer to seal the backing and make it nonporous and nontacky.
Claim 13
Dependent Claim
24 words
A strip of binding tape according to claim 8 wherein said tab is coated on the surface contacting said adhesive with a low-adhesion backsize.
Claim 14
Dependent Claim
26 words
A strip of binding tape according to claim 8 wherein said strip of tape is perforated transversely adjacent the edges of the tabs contacting the adhesive.
Claim 15
Dependent Claim
26 words
A strip of binding tape according to claim 8 wherein at least one of said tabs has an opening formed therein to receive a locating pin.
Claim 16
Dependent Claim
26 words
A strip of binding tape according to claim 6 wherein said strip of tape is perforated transversely adjacent the edges of the tabs contacting the adhesive.
Claim 17
Dependent Claim
30 words
A strip of binding tape according to claim 1 wherein a low-adhesion backsize is placed on said barrier layer to permit winding and stacking of a plurality of said strips.
Claim 18
Dependent Claim
28 words
A strip of binding tape according to claim 8 wherein said backing comprises a nonwoven web of viscose rayon 11/2 denier fibers bound by a rubbery acrylate polymer.
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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) | 1988-12-16 | 1989-06-17 | 1989-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-16 | 1993-06-17 | 1993-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-16 | 1997-06-17 | 1997-12-17 | $7700.00 | Window Closed / Lapsed |