Patent US3869336A successfully refreshed from Google Patents.
US3869336A
Expired / Lapsed
US
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Transfer sheets for transfer printing
Assignee: TRENTESAUX TOULEMONDE SA
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Filing: 1972-12-07
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Granted: 1975-03-04
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Expires: 1992-12-07
Abstract
Abstract A transfer sheet for transfer printing which comprises a paper of regenerated cellulose substrate carrying on at least one of its faces a detachable film layer containing a pattern or design, said film being separated from the substrate by a layer comprising a mixture of nitrocellulose and an aminoplastic.
Inventors
- 👤 Pierre Sander
- 👤 Christian Mullier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:40
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; B; B44; B44C; B44C1/00; B44C1/16; B44C1/165; B44C1/17; B44C1/1708; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24934; Y10T428/31504; Y10T428/31855; Y10T428/31859; Y10T428/3187; Y10T428/31873; Y10T428/31942; Y10T428/31949; Y10T428/31953
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
68 words
A TRANSFER SHEET FOR TRANSFER PRINTING WHICH COMPRISES A PAPER OR REGENERATED CELLULOSE SUBSTRATE CARRYING ON AT LEAST ONE OF ITS FACES A DETACHABLE FILM LAYER CONTAINING A PATTERN OR DESIGN, SAID FILM BEING SEPARATED FROM THE SUBSTRATE BY A LAYER CONSISTING ESSENTIALLY OF A MIXTURE OF NITROCELLULOSE AND AN AMINOPLAST SELECTED FROM THE GROUP CONSISTING OF UREAFORMALDEHYDE AND MELAMINE-FORMALDEHYDE RESINS SAID LAYER CONTAINING 40 TO 60% NITROCELLULOSE.
Claim 2
Dependent Claim
68 words
A TRANSFER SHEET FOR TRANSFER PRINTING WHICH COMPRISES A PAPER OR REGENERATED CELLULOSE SUBSTRATE CARRYING ON AT LEAST ONE OF ITS FACES A DETACHABLE FILM LAYER CONTAINING A PATTERN OR DESIGN, SAID FILM BEING SEPARATED FROM THE SUBSTRATE BY A LAYER CONSISTING ESSENTIALLY OF A MIXTURE OF NITROCELLULOSE AND AN AMINOPLAST SELECTED FROM THE GROUP CONSISTING OF UREAFORMALDEHYDE AND MELAMINE-FORMALDEHYDE RESINS SAID LAYER CONTAINING 40 TO 60% NITROCELLULOSE.
Claim 3
Dependent Claim
17 words
A transfer sheet as claimed in claim 1 wherein the detachable film comprises a pigmented vinyl resin.
Claim 4
Dependent Claim
20 words
A transfer sheet as claimed in claim 2 wherein the vinyl resin is polyvinylchloride or a vinyl chloride/vinyl acetate copolymer.
Claim 5
Dependent Claim
25 words
A transfer sheet as claimed in claim 2 wherein the vinyl resin contains from 10 to 50% by weight of very finely divided organic pigments.
Claim 6
Dependent Claim
15 words
A transfer sheet as claimed in claim 1 wherein the design or pattern is multicoloured.
Claim 7
Dependent Claim
15 words
A transfer sheet as claimed in claim 1 wherein the aminoplast is a urea-formaldehyde resin.
Claim 8
Dependent Claim
15 words
A transfer sheet as claimed in claim 1 wherein the nitrocellulose is dinitrocellulose or gun-cotton.
Claim 9
Dependent Claim
25 words
A transfer sheet as claimed in claim 1 which comprises a sheet of paper coated with 1-10 g per square meter of the nitrocellulose-aminoplast mixture.
Claim 10
Dependent Claim
23 words
A transfer sheet as claimed in claim 8 wherein the amount of the nitrocellulose-aminoplast mixture is 2 to 7 grams per square meter.
Claim 11
Dependent Claim
19 words
A transfer sheet as claimed in claim 1 wherein the nitrocellulose-aminoplast layer contains a minor amount of a plasticizer.
Claim 12
Dependent Claim
29 words
A transfer sheet as claimed in claim 10 wherein the plasticizer is present in an amount of from 0.3 to 0.8% based on the weight of the nitrocellulose-aminoplast mixture.
Claim 13
Dependent Claim
13 words
A transfer sheet as claimed in claim 10 wherein the plasticizer is octyladipate.
Claim 14
Dependent Claim
15 words
A transfer sheet as claimed in claim 1 wherein the aminoplast contains an alkyd resin.
Claim 15
Dependent Claim
17 words
A transfer sheet as claimed in claim 1 wherein the substrate comprises a highly calendered kraft paper.
Claim 16
Dependent Claim
22 words
A transfer sheet as claimed in claim 1 wherein the detachable film layer is coatEd with a layer of an acrylic resin.
Claim 17
Dependent Claim
14 words
A transfer sheet as claimed in claim 15 wherein the acrylic resin is polymethylmethacrylate.
Claim 18
Dependent Claim
45 words
A TRANSFER SHEET AS CLAIMED IN CLAIM 1 WHEREIN THE DETACHABLE FILM LAYER CARRIES AN ALUMINUM FOIL WHICH IS COATED ON ITS SIDE OPPOSITE THAT SIDE ADJACENT TO THE DETACHABLE FILM LAYER WITH A VINYL CHLORIDE POLYMER OR COPOLYMER, AN ACRYLIC RESIN OR A POLYAMIDE.
Claim 19
Dependent Claim
25 words
A transfer sheet as claimed in claim 1 which comprises a layer of a protective varnish between the nitrocellulose-aminoplast layer and the detachable film layer.
Claim 20
Dependent Claim
19 words
A transfer sheet as claimed in claim 18 wherein the varnish comprises an acrylic resin or a vinyl resin.
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) | 1978-03-03 | 1978-09-02 | 1979-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-03 | 1982-09-02 | 1983-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-03 | 1986-09-02 | 1987-03-04 | $7700.00 | Window Closed / Lapsed |