Patent US4948450A successfully refreshed from Google Patents.
US4948450A
Expired / Lapsed
US
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Method of making an adhesive label
Assignee: Avery Dennison Materials GmbH
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Filing: 1988-10-06
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Granted: 1990-08-14
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Expires: 2008-10-06
Abstract
Abstract An adhesive label comprising, in order, a printing carrier, a primer on the back of the printing carrier, an adhesion layer, a covering layer, and an optional adhesive-repellent layer between the adhesion layer and the cover layer. The primer comprises isocyanate-terminated compounds, particularly isocyanate-terminated polyurethanes. The adhesive label is made by applying the adhesion layer to the covering layer or to the optional adhesive-repellent layer on the covering layer, and combining the adhesion layer and a stratum made from the printing carrier and the primer by applying the adhesion layer onto the primer.
Inventors
- 👤 Hans-Ulrich Hurter
- 👤 Dieter Frenkler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:47
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/08; G09F3/10; C; C09; C09J; C09J7/00; C09J7/20; C09J7/21; C09J2400/00; C09J2400/20; C09J2400/28; C09J2400/283; G09F3/02; G09F2003/023; G09F2003/0241; G09F2003/0257; Y; Y10; Y10T; Y10T156/00; Y10T156/11; Y10T428/00; Y10T428/14; Y10T428/25; Y10T428/259; Y10T428/28; Y10T428/2843; Y10T428/2848; Y10T428/31504; Y10T428/31536; Y10T428/31551; Y10T428/31573; Y10T428/31587; Y10T428/31591
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
119 words
A method for making an adhesive lable having the following layers in order: a printing carrier; a solvent-free isocyanate-terminated polyurethane primer; an adhesive layer and a cover layer, said method consisting essentially of: in a first step, applying the adhesive layer consisting essentially of a polyacrylate dispersed in water onto the cover layer and pre-drying the adhesive layer on said cover layer; in a second step, applying the primer to the backside of the printing carrier; and in a third step, immediately following said second step and approximately 1-5 seconds after the application of the primer to the backside of the printing carrier, applying the adhesive layer onto the primer to connect the cover layer with the printing carrier.
Claim 2
Independent Claim
119 words
A method for making an adhesive lable having the following layers in order: a printing carrier; a solvent-free isocyanate-terminated polyurethane primer; an adhesive layer and a cover layer, said method consisting essentially of: in a first step, applying the adhesive layer consisting essentially of a polyacrylate dispersed in water onto the cover layer and pre-drying the adhesive layer on said cover layer; in a second step, applying the primer to the backside of the printing carrier; and in a third step, immediately following said second step and approximately 1-5 seconds after the application of the primer to the backside of the printing carrier, applying the adhesive layer onto the primer to connect the cover layer with the printing carrier.
Claim 3
Dependent Claim
32 words
The method of claim 1 wherein the adhesive layer is applied to the primer approximately 2 to 3 seconds after the application of the primer to the backside of the printing carrier.
Claim 4
Dependent Claim
22 words
A method according to claim 1 wherein said primer is applied at an application rate between 1.0 and 5.0 g/m 2 .
Claim 5
Dependent Claim
22 words
A method according to claim 1 wherein said primer is applied at an application rate between 1.5 and 2.5 g/m 2 .
Claim 6
Dependent Claim
20 words
A method according to claim 1 wherein said primer is applied at a temperature between approximately 90° and 100° C.
Claim 7
Dependent Claim
18 words
A method according to claim 4 wherein said primer is applied at a temperature of approximately 95° C.
Claim 8
Dependent Claim
21 words
A method according to claim 1 wherein said adhesive is applied at a rate of approximately 17-23 g/m 2 , dry-weight.
Claim 9
Dependent Claim
22 words
A method according to claim 3 wherein said adhesive layer is applied at a rate of approximately 18-22 g/m 2 , dry-weight.
Claim 10
Dependent Claim
40 words
A method according to claim 1 further comprising storing said printing carrier with said primer, adhesive layer thereon, and cover layer for at least 16 to 24 hours to effect hardening of said primer, and then forming individual labels therefrom.
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) | 1993-08-13 | 1994-02-12 | 1994-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-13 | 1998-02-12 | 1998-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-13 | 2002-02-12 | 2002-08-14 | $7700.00 | Window Closed / Lapsed |