Method and apparatus for continuous hardening of visible light-c

Details Method and apparatus for continuous hardening of visible light-c Method and apparatus for continuous hardening of visible light-c

1989-12-29

1992-08-04

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264 14, 264 17, 264 19, 264 406, 2642977, 425143, 4251744, B29C 3508

Patent

active

051356856

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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patent: 4329135 (1982-05-01), Beck
patent: 4439380 (1984-03-01), Michl et al.
patent: 4624810 (1986-11-01), Sisbarro
patent: 4879073 (1989-11-01), Kromrey
patent: 4890997 (1990-01-01), Beins et al.
patent: 4913859 (1990-04-01), Overton et al.

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