Stabilization of liquid radiation-curable compositions against u

Details Stabilization of liquid radiation-curable compositions against u Stabilization of liquid radiation-curable compositions against u

1996-03-06

1998-07-21

Berman, Susan W.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

4302801, 522170, 522182, 522 31, 522 66, 522 90, 522100, G03C 908, G03F 7029, G03F 7031, C08G 5968

Patent

active

057833583

ABSTRACT:
The invention relates to a process for stabilizing a liquid radiation-curable composition comprising a cationically polymerizable compound and a photoinitiator for cationic polymerization against premature commencement of the polymerization, in which a basic ion exchanger is brought into contact with the composition, at least for a certain time. The ion exchanger is preferably removed before commencement of the radiation curing, at least from the part of the radiation-sensitive composition which comes into contact with the radiation. The process is particularly suitable for stabilizing stereolithography baths in extended use against an undesired increase in viscosity.

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