Method and apparatus for continuous hardening of visible light-curing resins
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United States of America Patent
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Aug 4, 1992
Grant Date -
N/A
app pub date -
Dec 29, 1989
filing date -
Sep 1, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus to continuously harden articles made of visible light-curable resins, including continuously moving the articles to be hardened relative to a multiplicity of sources of visible light which are independently controllable to be able to vary the radiation to which the articles is exposed during its passage while independently controlling the temperature at which this takes place; and apparatus to accomplish this such that a large number of the objects to be irradiated passing through the hardening apparatus have the same exposure history to the visible light and to heating or cooling respectively. As the result, there is substantially no variation in the physical properties of these photo-polymerized products.
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