US4187265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making ornamental plastic product
Assignee: EMSIG Manufacturing CORP
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Filing: 1975-05-14
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Granted: 1980-02-05
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Expires: 1995-05-14
Abstract
Abstract The method of making an improved ornamental plastic product incorporating lamellar material oriented in a selected disposition, which includes the steps of subjecting the resinous mass containing the lamellae to an orienting influence, and thereafter subjecting the mass to a high speed beam of electrons sufficient at least partially to cure the resin and immobilize the oriented lamellae to prevent their migration from the selected disposition. The resinous mass containing the lamellae is preferably cooled prior to orientation, and irradiated while still in the cooled state.
Inventors
- 👤 Daniel A. Fischler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:46
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/88; B29C48/911; B29C48/9135; B29C48/9145; B29C48/03; B29C48/07; B29C48/08; B29C48/91
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
157 words
The method of manufacturing a formed plastic article having oriented laminar, non-magnetic filler material disposed therein from a batch of liquid resinous material of a type which exhibits an exothermic reaction upon polymerization and which is subject to polymerization responsive to a high speed electron beam, which comprises the steps of introducing said filler material into said resin batch, subjecting said filled resin batch to orienting influences to cause said filler to assume a desired orientation within said batch, terminating application of said influence, and thereafter, while said filler remains oriented, subjecting said batch to a source of high speed electrons in dosage sufficient partially to polymerize the treated portions of said batch throughout the thickness thereof substantially to the "B" stage, thereby to fix the position of said filler in said desired orientation relative to said polymerized material, thereafter forming said material while in the "B" stage, and thereafter completing the cure of the formed material.
Claim 2
Independent Claim
157 words
The method of manufacturing a formed plastic article having oriented laminar, non-magnetic filler material disposed therein from a batch of liquid resinous material of a type which exhibits an exothermic reaction upon polymerization and which is subject to polymerization responsive to a high speed electron beam, which comprises the steps of introducing said filler material into said resin batch, subjecting said filled resin batch to orienting influences to cause said filler to assume a desired orientation within said batch, terminating application of said influence, and thereafter, while said filler remains oriented, subjecting said batch to a source of high speed electrons in dosage sufficient partially to polymerize the treated portions of said batch throughout the thickness thereof substantially to the "B" stage, thereby to fix the position of said filler in said desired orientation relative to said polymerized material, thereafter forming said material while in the "B" stage, and thereafter completing the cure of the formed material.
Claim 3
Dependent Claim
22 words
The method of claim 1 and including the step of cooling said filled resin batch prior to said orienting and irradiating steps.
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) | 1983-02-04 | 1983-08-06 | 1984-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-04 | 1987-08-06 | 1988-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-04 | 1991-08-06 | 1992-02-05 | $7700.00 | Window Closed / Lapsed |