Material for eyeglass lenses
The RAV7™ series produce high quality low index (1.50) ophthalmic lenses, at high yield.
They are characterized by a high scratch and weather resistance, are tintable and have optical performance close to mineral glass. RAV7™ extends its use to applications like the marine environment and welding masks, as well as photographic filters.
For material information and new developments please contact us for support.
- High NCO content and non-yellowing
- Excellent solvent resistance and weather resistance
- High Biomass content with more than 60%
- Applicable to field Hexamethylenediisocyanate (HDI) derivatives are being used
|Standard||RAV7™AT||Standard ADC grade for 1.50 index lenses / materials|
|Standard||RAV7™AX||Second generation standard ADC grade for 1.50 index lenses|
|Special||RAV7™NL||Up to 40% lower IPP usage, with higher HDT and lens hardness, yet similar properties to standard ADC
Has proven better casting yield and easier lens production
Also: curable with BPO powder
|Premium||RAV7™NG||Reduced shrinkage and initiator usage. Suited to cast complex lenses. Improved scratch resistance|
|Premium||RAV7™MC||In-mass coloration of sunlenses and corrective lenses
Prevents tinting failures and improves color consistency
Improves production yield over conventional dip-dyeing
|Middle Index||RAV7™55T||ADC grade for producing 1.55 / 1.56 index lenses / materials|
|Premium||RAV7™BC||Special 1.5 index ADC grade with UV+420cut|
※Biomass content of these polyisocyanates was measured according to ASTM D6866-04.
Although the data above is not guaranteed by any industrial standards, it is based on test results