US4207379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substrate web coated with a thermosetting coating resin
Assignee: Evonik Operations GmbH
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Filing: 1978-07-31
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Granted: 1980-06-10
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Expires: 1998-07-31
Abstract
Abstract This invention relates to an improvement in a substrate web coated with a thermosetting coating resin and optionally impregnated with an aminoplast resin, in particular a web of paper, for the surface finishing of woodwork panels or laminates, the improvement that the coating resin is a modified polyester resin, composed of (a) 60 to 95% by weight of a hardenable polyester resin, (b) 1 to 15% by weight of a cross-linking agent for the polyester resin, (c) 5 to 40% by weight of a thermoplastic containing predominantly linear, high-molecular weight, reactive groups, (d) 1 to 15% by weight of a monomer with at least one polymerizable double bond and at least one group which reacts with the reactive group of the thermoplastic, and (e) a hardening catalyst, and optionally dyes, pigments and/or fillers. The invention also relates to a process for preparing a synthetic resin coated substrate web.
Inventors
- 👤 Jurgen Fock
- 👤 Eckehard Schamberg
- 👤 Werner Schafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:16
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/24; D21H19/28; B; B32; B32B; B32B21/00; B32B21/04; B32B21/06; B32B29/00; B32B29/06; D21H27/00; D21H27/18; D21H27/22; D21H27/26; D21H27/28; B32B2255/00; B32B2255/12; B32B2255/26; B32B2260/00; B32B2260/02; B32B2260/028; B32B2260/04; B32B2260/046; B32B2317/00; B32B2317/12; B32B2317/16; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/47; D21H17/49; D21H17/51; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906; Y10T428/31942; Y10T428/31949; Y10T428/31957; Y10T428/3196; Y10T428/31964; Y10T428/31967
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
114 words
In a substrate web, coated with a thermosetting coating resin, in particular a web of paper, for the surface finishing of woodwork panels or laminates, the improvement wherein the coating resin is a modified polyester resin, composed of (a) 60 to 95% by weight of a hardenable polyester resin, (b) 1 to 15% by weight of a cross-linking agent for the polyester resin, (c) 5 to 40% by weight of a thermoplastic containing predominantly linear, high-molecular weight, reactive groups, (d) 1 to 15% by weight of a monomer with at least one polymerizable double bond and at least one group which reacts with the reactive group of the thermoplastic, and (e) a hardening catalyst.
Claim 2
Dependent Claim
114 words
In a substrate web, coated with a thermosetting coating resin, in particular a web of paper, for the surface finishing of woodwork panels or laminates, the improvement wherein the coating resin is a modified polyester resin, composed of (a) 60 to 95% by weight of a hardenable polyester resin, (b) 1 to 15% by weight of a cross-linking agent for the polyester resin, (c) 5 to 40% by weight of a thermoplastic containing predominantly linear, high-molecular weight, reactive groups, (d) 1 to 15% by weight of a monomer with at least one polymerizable double bond and at least one group which reacts with the reactive group of the thermoplastic, and (e) a hardening catalyst.
Claim 3
Dependent Claim
27 words
A synthetic resin coated substrate web according to claim 1 in which the coating resin contains from 60 to 80% by weight of a hardenable polyester resin.
Claim 4
Dependent Claim
30 words
A synthetic resin coated substrate web according to claim 1 in which the coating resin contains from 5 to 10% by weight of a crosslinking agent for the polyester resin.
Claim 5
Dependent Claim
28 words
A synthetic resin coated substrate web according to claim 1 in which the coating resin contains from 10 to 25% by weight of a thermoplastic containing reactive groups.
Claim 6
Dependent Claim
32 words
A synthetic resin coated substrate web according to claim 1 in which the coating resin contains from 2 to 5% by weight of the at least bifunctional monomers recited in paragraph (d).
Claim 7
Dependent Claim
29 words
A synthetic resin coated substrate web according to claim 1 in which reactive groups of the thermoplastic are hydroxyl groups or groups which liberate hydroxyl groups under reaction conditions.
Claim 8
Dependent Claim
31 words
A synthetic resin coated substrate web according to claim 6 in which the monomer which reacts with the thermoplastic includes an amide group or an alkoxymethylamide group, as the reactive group.
Claim 9
Dependent Claim
23 words
A synthetic resin coated substrate web according to claim 7 in which the alkyl group of the alkoxymethylamide group is the methyl group.
Claim 10
Dependent Claim
27 words
A synthetic resin coated substrate web according to claim 1 in which the coating resin additionally contains up to 5% by weight of an etherified melamine-formaldehyde precondensate.
Claim 11
Dependent Claim
22 words
A synthetic resin coated substrate web according to claim 1 in which the aminoplast resin employed for impregnation is a melamine-formaldehyde precondensate.
Claim 12
Dependent Claim
35 words
A synthetic resin coated substrate web according to claim 1 in which the ratio of weight of resin on the substrate to its weight of paper when it is non-impregnated is between 0.75 to 2.0.
Claim 13
Dependent Claim
15 words
A synthetic resin coated substrate web according to claim 1 impregnated with an aminoplast resin.
Claim 14
Dependent Claim
20 words
A synthetic resin coated substrate web according to claim 1 in which the coating resin includes dyes, pigments, and/or fillers.
Claim 15
Dependent Claim
42 words
A process for preparing a synthetic resin coated substrate web according to claim 1 which comprises dissolving the components forming the coating resin in a common solvent or mixture of solvents, pouring the solution on a substrate web, and evaporating the solvent.
Claim 16
Dependent Claim
17 words
A process according to claim 14 in which the substrate web is impregnated with an aminoplast 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) | 1983-06-10 | 1983-12-10 | 1984-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-06-10 | 1987-12-10 | 1988-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-06-10 | 1991-12-10 | 1992-06-10 | $7700.00 | Window Closed / Lapsed |