US4801487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Imprintable sheet, method for the production thereof and use thereof
Assignee: Meto International GmbH
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Filing: 1985-04-09
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Granted: 1989-01-31
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Expires: 2005-04-09
Abstract
Abstract An imprintable sheet of plastic is proposed having a carrier sheet and a layer applied on at least one side for receiving an imprint in which to improve the absorbency, to increase the drying speed of the imprint and to improve the outline sharpness of the imprint the layer receiving the imprint consists of a firm polymer matrix and microporous finely divided solid particles embedded therein. Furthermore, a method is described for producing such an imprintable sheet. The sheet is preferably used for making imprintable self-adhesive or non-self-adhesive labels.
Inventors
- 👤 Peter Kalus
- 👤 Hanns-Martin von Truchsess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:43
CPC Classifications
B; B44; B44D; B44D3/00; B44D3/18; C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08K; C08K7/00; C08K7/22; C09; C09D; C09D7/00; C09D7/40; C09J; C09J7/00; C09J7/20; C09J7/201; C09J7/22; G; G09; G09F; G09F3/00; G09F3/02; C09J2203/00; C09J2203/334; C09J2301/00; C09J2301/30; C09J2301/302; C09J2301/40; C09J2301/414; C09J2401/00; C09J2401/003; C09J2423/00; C09J2423/04; C09J2423/046; C09J2423/10; C09J2423/106; C09J2425/00; C09J2425/003; C09J2429/00; C09J2429/003; C09J2431/00; C09J2431/003; C09J2433/00; C09J2433/003; C09J2461/00; C09J2461/003; C09J2467/00; C09J2467/003; C09J2475/00; C09J2475/003; C09J2499/00; C09J2499/003; G09F2003/0201; G09F2003/023; G09F2003/0233; G09F2003/0235; G09F2003/0276; G09F3/0291; G09F3/0294; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24901; Y10T428/25; Y10T428/28; Y10T428/2839
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
75 words
In an imprintable sheet of plastic comprising a carrier sheet and a layer applied on at least one side for receiving an imprint with said layer receiving the imprint consisting of a firm polymer matrix and microporous finely divided solid particles embedded therein, the improvement which comprises that said carrier sheet consists of a plastic formed from non-polar monomers and that said layer receiving the imprint forms an integral composite structure with said carrier sheet.
Claim 2
Dependent Claim
75 words
In an imprintable sheet of plastic comprising a carrier sheet and a layer applied on at least one side for receiving an imprint with said layer receiving the imprint consisting of a firm polymer matrix and microporous finely divided solid particles embedded therein, the improvement which comprises that said carrier sheet consists of a plastic formed from non-polar monomers and that said layer receiving the imprint forms an integral composite structure with said carrier sheet.
Claim 3
Dependent Claim
15 words
Sheet according to claim 1, in which said carrier sheet consists of polyethylene or polypropylene.
Claim 4
Dependent Claim
9 words
Sheet according to claim 1, finished to be self-adhesive.
Claim 5
Dependent Claim
19 words
Sheet according to claim 1, in which said solid particles are at least one of microporous pigments and fillers.
Claim 6
Dependent Claim
23 words
Sheet according to claim 1, in which said layer receiving the imprint additionally contains at least one of color pigments and luminescent pigments.
Claim 7
Dependent Claim
72 words
Imprintable label comprising an imprintable sheet of plastic comprising a carrier sheet and a layer applied on at least one side for receiving an imprint with said layer receiving the imprint consisting of a firm polymer matrix and microporous finely divided solid particles embedded therein, wherein said carrier sheet consists of a plastic formed from non-polar monomers and said layer receiving the imprint forms and integral composite structure with said carrier sheet.
Claim 8
Dependent Claim
72 words
Imprintable label comprising an imprintable sheet of plastic comprising a carrier sheet and a layer applied on at least one side for receiving an imprint with said layer receiving the imprint consisting of a firm polymer matrix and microporous finely divided solid particles embedded therein, wherein said carrier sheet consists of a plastic formed from non-polar monomers and said layer receiving the imprint forms and integral composite structure with said carrier sheet.
Claim 9
Dependent Claim
14 words
The label of claim 6, wherein said carrier sheet consists of polyethylene or polypropylene.
Claim 10
Dependent Claim
13 words
The label of claim 6, wherein said sheet is finished to be self-adhesive.
Claim 11
Dependent Claim
18 words
The label of claim 6, wherein said solid particles are at least one of microporous pigments and fillers.
Claim 12
Dependent Claim
22 words
The label of claim 6, wherein said layer receiving the imprint additionally contains at least one of color pigments and luminescent pigments.
Claim 13
Dependent Claim
112 words
In a method for producing an imprintable sheet, wherein a plastic carrier sheet is coated on at least one side to form an absorbent layer for receiving an imprint, the improvement which comprises: employing a plastic formed from non-polar monomers as said carrier; applying a liquid primer to the side of said carrier sheet to be coated and thereafter, insofar as necessary, dried; and applying to the side of said carrier sheet thus treated an intimate mixture of microporous finely divided solid particles and at least one binding agent forming a firm polymer matrix by at least one of curing and crosslinking to form a layer and thereafter, insofar as necessary, dried.
Claim 14
Dependent Claim
112 words
In a method for producing an imprintable sheet, wherein a plastic carrier sheet is coated on at least one side to form an absorbent layer for receiving an imprint, the improvement which comprises: employing a plastic formed from non-polar monomers as said carrier; applying a liquid primer to the side of said carrier sheet to be coated and thereafter, insofar as necessary, dried; and applying to the side of said carrier sheet thus treated an intimate mixture of microporous finely divided solid particles and at least one binding agent forming a firm polymer matrix by at least one of curing and crosslinking to form a layer and thereafter, insofar as necessary, dried.
Claim 15
Dependent Claim
32 words
The method of claim 11, wherein said mixture of binding agent and solid particles is applied in an amount of at least about 2 g/m 2 with respect to the dry weight.
Claim 16
Dependent Claim
30 words
The method of claim 11, wherein at least one of the primer and the binding agent is used in the form of a solution or dispersion in a suitable solvent.
Claim 17
Dependent Claim
25 words
The method of claim 11, wherein at least one of the primer and the binding agent is at least one of reactively crosslinking and solvent-free.
Claim 18
Dependent Claim
21 words
The method of claim 11, wherein at least one of microporous pigments and fillers are used as finely divided solid particles.
Claim 19
Dependent Claim
29 words
The method of claim 11, wherein said mixture of binding agent and solid particles is colored by an addition of at least one of color pigments and luminescent pigments.
Claim 20
Dependent Claim
15 words
The method of claim 11, including applying said primer by means of a printing machine.
Claim 21
Dependent Claim
21 words
The method of claim 11, including finishing one side of the sheet to be self-adhesive by means of an adhesive layer.
Claim 22
Dependent Claim
50 words
The method of claim 11, wherein at least one of the following synthetic or natural polymers is used as said primer: polyacrylates, polymethacrylates, polyesters, polystyrenes, poly-1,3-dienes, polyamides, polyurethanes, polyvinyl butyral, polyvinyl acetate, alkyd resins, urea resins, modified nitrocelluloses, resins modified with shellac or colophony, and their mixed polymers and copolymers.
Claim 23
Dependent Claim
26 words
The method of claim 19, wherein said primer is applied in an amount of about 0.2 to 0.5 g/m 2 with respect to the dry weight.
Claim 24
Dependent Claim
16 words
The method of claim 11, including employing a polyethylene or polypropylene sheet as said carrier sheet.
Claim 25
Dependent Claim
22 words
The method of claim 21, including increasing the surface tension of said carrier sheet by corona discharges before said primer is applied.
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) | 1992-01-31 | 1992-08-01 | 1993-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-31 | 1996-08-01 | 1997-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-31 | 2000-08-01 | 2001-01-31 | $7700.00 | Window Closed / Lapsed |