Method of forming a three-dimensional object comprising additives imparting reduction of shrinkage to photohardenable compositions
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United States of America Patent
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Jul 7, 1992
Grant Date -
N/A
app pub date -
Apr 21, 1989
filing date -
Apr 21, 1989
priority date (Note) -
Expired
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Abstract
Method of forming an integral three-dimensional object from a photohardenable liquid composition with low shrinkage containing a linear polymer which is soluble in the liquid but separates into a separate phase upon photohardening.
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