Dual-cure phase-separation type photosensitive resin composition for continuous 3D printing with high precision
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United States of America Patent
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Jun 18, 2024
Grant Date -
Oct 27, 2022
app pub date -
Nov 4, 2020
filing date -
Nov 4, 2020
priority date (Note) -
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Abstract
The present disclosure relates to a dual-cure phase-separation type photosensitive resin composition for continuous 3D printing with high precision, including an acrylate having a cross-linkable double bond, a polyurethane prepolymer, a chain extender, and a photoinitiator. The polyurethane prepolymer is produced by a reaction between an isocyanate and a polyether polyol with a molecular weight larger than or equal to 4000 under heating and catalytic action. The photosensitive resin composition of the present disclosure is used in the continuous 3D printing to make high precision parts.
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