Lens having a high refractive index with a low dispersion

Details Lens having a high refractive index with a low dispersion Lens having a high refractive index with a low dispersion

G - Physics

02

B

402/182, 402/301

G02B 1/04 (2006.01) C08F 218/00 (2006.01) C08F 220/30 (2006.01)

Patent

CA 1167198

ABSTRACT OF THE DISCLOSURE A lens having a high refractive index with a low dispersion produced by copolymerizing polyfunctional allyl monomer with at least one selected from the monomer group represented by the general formula A: Image ...... A X : H, CH3, C? Y: H, CH3, C2H5, n-C3H7, iso-C3H7- OCH3, C6H11' C?, Br, CH2C? CH2Br, C6H5, CH2C6H5' SCH3 m - 0, 1, 2 n - 0, 1, 2, 3, 4, 5. This lens is excellent in its transmittance, pencil hardness, impact resistance, dyeability, coating adhesion, solvent resistance, workability, etc.

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