US3775212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing ornamental coating material having concavo-convex patterns
Assignee: Mitsuboshi Sangyo Co Ltd
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Filing: 1971-09-20
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Granted: 1973-11-27
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Expires: 1991-09-20
Abstract
Abstract The invention relates in a process for manufacturing an ornamental coating material having new concavo-convex patterns by means of the application of internal stress generated within the thermoplastic resin sheet by passing the sheet through between two rolls having different temperatures without using an expensive embossing roll.
Inventors
- 👤 H Iwasaki
- 👤 T Shimizu
- 👤 S Sakakura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:11
CPC Classifications
B; B44; B44C; B44C1/00; B44C1/10; B29; B29C; B29C59/00; B29C59/02; B29C59/04; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1039; Y10T156/1041; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24471; Y10T428/24479; Y10T428/24612
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
48 words
A process as clAimed in claim 1 and including the step of subsequently positively heating the laminate produced for at least 20 seconds at a temperature between the softening point of the resin and a temperature lower than the softening point of the resin by about 20* C.
Claim 2
Dependent Claim
41 words
A process as claimed in claim 1 therefrom which said thermoplastic resin sheet or a sheet formed thereform is manufactured from the resin selected from the group consisting of polyvinylchloride, vinylchloridevinyl acetate copolymer, vinylchloride-ethylene-vinylacetate copolymer, polyethylene, polypropylene, polystyrene and ethylene-vinylacetate copolymer.
Claim 3
Dependent Claim
41 words
A process as claimed in claim 1 in which the backing material is selected from the group consisting of a paper such as kraft paper, Japanese paper, various kinds of textiles, non-woven fabrics, metallic foil and synthetic resin sheet, asbestos sheet.
Claim 4
Dependent Claim
36 words
A process as claimed in claim 1 and including the steps of providing smooth peripheral surfaces on said two rollers, and setting up a controllable back tension on the product as fed to said two rollers.
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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |