US4049860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper support carrying anti-adhesive layer
Assignee: Hoffmann and Engelmann
•
Filing: 1976-11-17
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Granted: 1977-09-20
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Expires: 1996-11-17
Abstract
Abstract This invention relates to an improvement in a paper support for receiving on one side thereof layers of print and/or varnish, in particular for receiving transfer images, the improvement comprising a water-permeable covering layer on the other side containing polyvinyl alcohol, a polysiloxane, and a polyalkyleneglycol wax. The invention also includes an article employing the improved paper support.
Inventors
- 👤 Ludwig Armbrust
- 👤 Jurgen Neubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:29
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/24; D21H19/32; B; B44; B44C; B44C1/00; B44C1/16; B44C1/165; B44C1/175; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/14; Y10T428/1419; Y10T428/1452; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
41 words
In a paper support for receiving on one side thereof layers of print and/or varnish, in particular for receiving transfer images, the improvement comprising a water-permeable covering layer on the other side containing polyvinyl alcohol, a polysiloxane, and a polyalkyleneglycol wax.
Claim 2
Dependent Claim
41 words
In a paper support for receiving on one side thereof layers of print and/or varnish, in particular for receiving transfer images, the improvement comprising a water-permeable covering layer on the other side containing polyvinyl alcohol, a polysiloxane, and a polyalkyleneglycol wax.
Claim 3
Dependent Claim
25 words
A support according to claim 1 wherein said water-permeable layer contains approximately 0.5 to 10% by weight of polysiloxane, calculated on the dry water-permeable layer.
Claim 4
Dependent Claim
13 words
A support according to claim 1 wherein said water-permeable layer contains an organopolysiloxane.
Claim 5
Dependent Claim
13 words
A support according to claim 1 wherein said water-permeable layer contains a dialkylpolysiloxane.
Claim 6
Dependent Claim
14 words
A support according to claim 4 wherein said water-permeable layer contains a dimethylsiloxane polymer.
Claim 7
Dependent Claim
14 words
A support according to claim 1 wherein the polyalkyleneglycol wax comprises a polyethyleneglycol wax.
Claim 8
Dependent Claim
19 words
A support according to claim 6 wherein the polyethyleneglycol wax has a molecular weight between about 1500 and 6000.
Claim 9
Dependent Claim
30 words
A support according to claim 1 wherein polyalkyleneglycol wax is present in an amount in the range of about 5 to 15% by weight calculated on the dry water-permeable layer.
Claim 10
Dependent Claim
24 words
A support according to claim 1 wherein said layer contains about 70 - 80% by weight of polyvinyl alcohol calculated on the dry layer.
Claim 11
Dependent Claim
23 words
An article comprising a support as claimed in claim 1 bearing at least one transfer image on the surface remote from said covering.
Claim 12
Dependent Claim
26 words
An article as claimed in claim 10 wherein each transfer image is adhered to said remote surface by an adhesive and has a protective coating thereon.
Claim 13
Dependent Claim
14 words
An article as claimed in claim 11 wherein said protective coating comprises a varnish.
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) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |