Plastic molding process
Abstract
Abstract An improved molding process for molding complex surfaces is provided comprising charging a mold cavity with a thermosetting, polymerizable resin, subjecting said resin to pressure and temperature sufficient to mold said resin in conformity with said mold cavity and to partially cure said resin to form a dimensionally stable, partially cured article having compels surfaces, removing at least a portion of the flashing from said molded article, placing discrete masses of a thermosetting, polymerizable resin upon said complex surfaces so that upon application of pressure said resin flows, forming a liquid resin wave front which drives gases and vapors from said mold cavity as said wave front advances with increasing pressure.
Inventors
- 👤 R Mach
- 👤 E Studley
- 👤 T Haas
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
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