FIELD: metallurgy.
SUBSTANCE: cast article representing an optical data storage of light dissipating glass comprises polycarbonate produced in interaction between, at least, one bisphenol and phosgene at phase interface. Surplus phosgene is used in amount of 8-17% per the sum of used bisphenols. Integrated intensity of electric field measured at 100 mm from cast articles produced during 5 minutes of continuous casting at pressure varied from -30 to 0 kV/m, preferably, from -20 to 0 kV/m.
EFFECT: lower intensity of electrostatic field on cast article surface, higher quality of cast articles.
7 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SUBSTRATE MATERIAL FOR TRANSPARENT MOULDED ARTICLES | 2005 |
|
RU2421763C2 |
| POLYCARBONATES WITH GOOD WETTABILITY | 2005 |
|
RU2412956C2 |
| POLYCARBONATES WITH GOOD WETTABILITY | 2005 |
|
RU2410400C2 |
| METHOD OF PRODUCING POLYCARBONATE BY MELT RE-ESTERIFICATION | 2008 |
|
RU2468041C2 |
| SUBSTRATE MATERIALS FOR TRANSPARENT ARTICLES MADE BY PRESSURE CASTING | 2007 |
|
RU2468043C2 |
| ALKYLPHENOL FOR ADJUSTING MOLECULAR WEIGHT AND COPOLYCARBONATE WITH IMPROVED PROPERTIES | 2009 |
|
RU2505556C2 |
| METHOD OF PRODUCING POLYCARBONATE BY MELT RE-ESTERIFICATION, POLYCARBONATE OBTAINED USING SAID METHOD AND USE THEREOF | 2008 |
|
RU2495058C2 |
| POLYMER COMPOSITION AND HEAT-RESISTANT PARTS (VARIANTS) | 2003 |
|
RU2291876C2 |
| METHOD OF OBTAINING POLYCARBONATE ON BOUNDARY OF PHASE SEPARATION AND PROCESSING AT LEAST PART OF FORMED SOLUTION OF ALKALI METAL CHLORIDE AT ADDITIONAL STAGE OF ELECTROLYSIS | 2009 |
|
RU2532910C2 |
| ULTRAPURE POLYCARBONATES HAVING GOOD NATURAL COLOUR AND HIGH THERMAL STABILITY, APPARATUS AND METHOD FOR PRODUCTION THEREOF | 2010 |
|
RU2566822C2 |
