Patent US1882498A successfully refreshed from Google Patents.
US4041197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for coating a substrate with plastic
Assignee: Individual
•
Filing: 1975-12-29
•
Granted: 1977-08-09
•
Expires: 1995-12-29
Abstract
Abstract A method is disclosed for coating a substrate or web with a plastic material. A liquid plastisol coating is applied to the web and the coated web is then passed between a put-on roll and a heat drum, which heats and cures the plastisol. The put-on roll is pressed against the heat drum to compress the coated web. The plastisol is partially cured to gelation while being compressed by the put-on roll, and the curing of the plastisol is completed during further travel of the web around the heat drum.
Inventors
- 👤 Rudy L. Gagne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:17
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/28; B05D3/00; B05D3/12; D; D06; D06N; D06N3/00; D06N3/0086; D06N3/0088; D06N3/04; D06N3/06; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/20; B05D2252/00; B05D2252/02; B05D3/02; B05D3/0254
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
72 words
A method of producing a plastic coated substrate comprising: coating the substrate with a plastisol; providing a nip defined by a transverse put-on roll and a transverse heat drum for compressing the coated substrate; locating the substrate in said nip; smoothing and spreading the plastisol over the substrate by producing relative movement between the coated substrate and said nip; and heating the coated substrate in said nip to partially cure the plastisol.
Claim 2
Independent Claim
72 words
A method of producing a plastic coated substrate comprising: coating the substrate with a plastisol; providing a nip defined by a transverse put-on roll and a transverse heat drum for compressing the coated substrate; locating the substrate in said nip; smoothing and spreading the plastisol over the substrate by producing relative movement between the coated substrate and said nip; and heating the coated substrate in said nip to partially cure the plastisol.
Claim 3
Dependent Claim
37 words
A method as claimed in claim 1 wherein the coated substrate is heated in said nip to cure the plastisol to gelation, and wherein the coated substrate is heated further to complete the curing of the plastisol.
Claim 4
Dependent Claim
39 words
A method as claimed in claim 1 wherein the coated substrate is heated in said nip by passing the coated substrate around a cylindrical heat drum forming part of said nip, the drum being in contact with the plastisol.
Claim 5
Dependent Claim
29 words
A method as claimed in claim 1 wherein the coated substrate is passed through said nip, the put-on roll being pressed against the heat drum to compress said substrate.
Claim 6
Dependent Claim
30 words
A method as claimed in claim 1 wherein the plastisol is smoothed and spread by rolling the plastisol over the substrate using a heated drum as part of said nip.
Claim 7
Dependent Claim
52 words
A method as claimed in claim 2 wherein said further heating of the coated substrate is done by passing the coated substrate around a heated drum forming part of said nip, so that the coated substrate is continuously in contact with the heated drum until the curing of the plastisol is completed.
Claim 8
Dependent Claim
30 words
A method as claimed in claim 1 wherein the substrate is coated with plastisol by depositing plastisol on the substrate in a predetermined pattern to produce a plastisol printed substrate.
Claim 9
Dependent Claim
22 words
A method as claimed in claim 1 wherein said plastisol is of the type having polyvinyl chloride homopolymer as the resin component.
Claim 10
Dependent Claim
14 words
A method as claimed in claim 8 wherein the substrate is formed of paper.
Claim 11
Independent Claim
73 words
A method of plastic coating a web comprising: coating the web with a layer of plastisol; passing the coated web through a nip defined by a transverse put-on roll and a transverse heat drum to smooth and spread the plastisol over the web; compressing and heating the web in said nip to partially cure the plastisol to gelation; and applying additional heat to the coated web until complete fusion occurs in the plastisol.
Claim 12
Independent Claim
73 words
A method of plastic coating a web comprising: coating the web with a layer of plastisol; passing the coated web through a nip defined by a transverse put-on roll and a transverse heat drum to smooth and spread the plastisol over the web; compressing and heating the web in said nip to partially cure the plastisol to gelation; and applying additional heat to the coated web until complete fusion occurs in the plastisol.
Claim 13
Dependent Claim
31 words
A method as claimed in claim 10 wherein said nip is formed by a transverse heat drum and a transverse put-on roll, the put-on roll being pressed against the heat drum.
Claim 14
Dependent Claim
20 words
A method as claimed in claim 4 wherein a plastisol bank is formed between the substrate and the heat drum.
Claim 15
Dependent Claim
20 words
A method as claimed in claim 11 wherein a plastisol bank is formed between the web and the heat drum.
Claim 16
Dependent Claim
29 words
A method as claimed in claim 10 wherein the plastisol is of the type having polyvinyl chloride homopolymer as the resin, and wherein the web is formed of paper.
References Cited (Backward Citations)
US3196030A
Cited
US3278322A
Cited
US3338731A
Cited
US3349749A
Cited
US3392701A
Cited
GB1205964A
Cited
US3788872A
Cited
US3959546A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-08 | 1981-02-07 | 1981-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-08 | 1985-02-07 | 1985-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-08 | 1989-02-07 | 1989-08-09 | $7700.00 | Window Closed / Lapsed |