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PHOTOCURABLE RESIN COMPOSITION FOR STEREOLITHOGRAPHY PRODUCTION, THREE-DIMENSIONAL ARTICLES OBTAINED WITH SAID COMPOSITION, AND A CORRESPONDING PRODUCTION METHOD
PHOTOCURABLE RESIN COMPOSITION FOR STEREOLITHOGRAPHY PRODUCTION, THREE-DIMENSIONAL ARTICLES OBTAINED WITH SAID COMPOSITION, AND A CORRESPONDING PRODUCTION METHOD
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机译:用于立体照相术生产的光固化树脂组合物,具有所述组合物的三维制品以及相应的生产方法
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摘要
FIELD: manufacturing technology.;SUBSTANCE: invention relates to a method for stereolithography production. Liquid photocurable resin composition for stereolithography contains (i) at least one radically polymerisable compound (A), represented by the following general formula (I): R4O-CO-NH-R2-NH-CO-O-R1-O-CO-NH-R3-NH-CO-OR4 (I), where R1 is a residue of linear or branched polytetramethylene glycol with average molecular weight from 200 to 3,000 g/mol; R2 is a residue of a diisocyanate compound; R3 is a residue of a diisocyanate compound, same as or different from R2; and R4 selected from AcrO-CH2-CH2-; (AcrO-CH2)2CH-; (AcrO-CH2)3C-CH2-; AcrO-CH2-CHCH3-; AcrO-CH2-CHC2H5- and (AcrO-CH2)2C(C2H5)CH2-, preferably AcrO-CH2-CH2 and more preferably AcrO-CH2-CH2-; where Acr is CH2=C(R)-CO- and R is a hydrogen atom or a methyl group; (ii) at least one radically polymerisable organic compound (B) other than compound (A); and (iii) a photosensitive radical polymerisation initiator (C), wherein the content of the radically polymerisable compound (A) varies from 5 to 70 wt% of the total amount of the compounds (A) and (B). Invention further describes the corresponding stereolithography application and method, as well as three-dimensional articles obtained using said invention.;EFFECT: invention enables to obtain transparent three-dimensional articles which have a lower surface roughness.;10 cl, 6 ex, 1 tbl
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