US3538204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Embossed effects on resinous compositions
Assignee: Dunlop Semtex Ltd
•
Filing: 1966-12-12
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Granted: 1970-11-03
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Expires: 1986-12-12
Abstract
No abstract record available.
Inventors
- 👤 David Lynn Grubb
- 👤 Thomas J Wiggins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:41
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/06; Y; Y10; Y10S; Y10S264/00; Y10S264/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A METHOD OF OBTAINING AN EXPANDED THERMOPLASTIC RESINOUS MATERIAL HAVING AN EMBOSSED EFFECT ON ITS SURFACE, IN WHICH SAID RESINOUS MATERIAL IS BASED ON A POLYMER OF VINYL CHLORIDE, WHICH COMPRISES APPLYING TO A SELECTED PORTION OF SAID RESINOUS MATERIAL IN EXPANSIBLE FORM AN UNSATURATED POLYMERIZABLE ESTER OF METHACRYLIC ACID AND A PEROXY CROSS-LINKING AGENT WHICH WILL CROSS-LINK SAID ESTER ON HEATING THEREBY REDUCING THE THERMOPLASTICITY OF SAID SELECTED PORTION, AND HEATING THE TREATED MATERIAL TO CAUSE IT TO EXPAND WHEREBY THE SURFACE OF THE PORTION OF THE MATERIAL THAT HAS NOT BEEN TREATED RISES ABOVE THE LEVEL OF THE SURFACE OF THE TREATED PORTION TO FORM AN EMBOSSED EFFECT.
Claim 2
Independent Claim
110 words
A METHOD OF OBTAINING AN EXPANDED THERMOPLASTIC RESINOUS MATERIAL HAVING AN EMBOSSED EFFECT ON ITS SURFACE, IN WHICH SAID RESINOUS MATERIAL IS BASED ON A POLYMER OF VINYL CHLORIDE, WHICH COMPRISES APPLYING TO A SELECTED PORTION OF SAID RESINOUS MATERIAL IN EXPANSIBLE FORM AN UNSATURATED POLYMERIZABLE ESTER OF METHACRYLIC ACID AND A PEROXY CROSS-LINKING AGENT WHICH WILL CROSS-LINK SAID ESTER ON HEATING THEREBY REDUCING THE THERMOPLASTICITY OF SAID SELECTED PORTION, AND HEATING THE TREATED MATERIAL TO CAUSE IT TO EXPAND WHEREBY THE SURFACE OF THE PORTION OF THE MATERIAL THAT HAS NOT BEEN TREATED RISES ABOVE THE LEVEL OF THE SURFACE OF THE TREATED PORTION TO FORM AN EMBOSSED EFFECT.
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) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |