PHOTOPOLYMERIZABLE COMPOSITION FOR VISIBLE-REGION LASER STEREOLITHOGRAPHY Russian patent published in 2005 - IPC

Abstract RU 2244335 C2

FIELD: polymer materials.

SUBSTANCE: invention provides photopolymerizable composition for lithography utilizing visible-region light comprising (i) acryl oligomers and (ii) initiating system, said acryl oligomers being hexanediol diacrylate or trimethylolpropane triacrylate and ethoxylated diphenylolpropane diacrylate and said initiating system being a mixture of Bengal rose with dimethylethanolamine in 1-vinyl-2-pyrrolidone, and, additionally, (iii) polymethylmethacrylate. Composition possesses light sensitivity high enough to manufacture three-dimensional variably shaped articles under laser 3D-stereolithography conditions using inexpensive and small-size lasers with λ=530 nm.

EFFECT: expanded lithographic possibilities at lower cost.

2 tbl, 11 ex

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RU 2 244 335 C2

Authors

Ljubimov A.V.

Zapadinskij B.I.

Shiganov I.N.

Malov I.E.

Grigorjants A.G.

Dates

2005-01-10—Published

2002-12-10—Filed