| PATENT ASSIGNEE'S COUNTRY | CH |
| UPDATE | 06.99 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
Uncoated lens made of blend of colorless, transparent co polyamide (I) with homopolyamide; (I) constituted of - Cycloaliphatic diamine contg 2 cyclohexane rings & < 24 C - Isophthalic acid Copolyamide has Tg 170 - 230C & Homopolyamide (< 30 %) to provide improved resistance to chemicals & stress cracking without losing rigidity, stability or thermoforming stability |
| PATENT PHOTOCOPY | Available on request |
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