FIELD: organic chemistry, medicine, ophthalmology.
SUBSTANCE: invention describes homopolymers or copolymers comprising links of the formula (I): 
wherein R1, R2 and R3 mean independently of one another oxygen (O) or sulfur (S) atom; at least one radical among R1, R2 and R means sulfur atom (S); R5 means different bisphenols with high refraction index and methods for their preparing. These polymers are used especially in making articles used in optics and ophthalmology as lens. Also, invention proposes a method for making lens used in optics and ophthalmology by casting under pressure of polymers and conferring them lens form used in optics and ophthalmology.
EFFECT: improved preparing method.
21 cl, 4 tbl, 7 ex
| Title | Year | Author | Number |
|---|---|---|---|
| OPTIC FACILITIES CONSTRUCTED FROM TREATED MELTS OF THERMOPLASTIC MATERIALS HAVING HIGH REFRACTION INDEX | 1998 |
|
RU2225872C2 |
| POLYCARBONATE MOULDING COMPOSITIONS | 2006 |
|
RU2442804C2 |
| RANDOMISED PHOSPHONATE/CARBONATE COPOLYMERS BASED ON BISPHENOLS HAVING HIGH MOLECULAR WEIGHT | 2011 |
|
RU2575339C2 |
| FIRE-RETARDANT POLYCARBONATE COMPOSITIONS WITH MODIFIED IMPACT STRENGTH | 2007 |
|
RU2439106C2 |
| CRYSTALLINE β-FOLDED POLYPROPYLENES | 2003 |
|
RU2318841C2 |
| LIGHT-RESISTANT IMITATION OF MACULAR PIGMENT | 2020 |
|
RU2800871C2 |
| NON-REACTIONABLE HYDROPHILIC POLYMERS WITH TERMINAL SILOXANES AND FIELDS OF APPLICATION THEREOF | 2011 |
|
RU2565591C2 |
| BISPHENOL ESTER DERIVATIVES, STABILIZED COMPOSITION AND METHOD OF POLYMER STABILIZATION | 1995 |
|
RU2141469C1 |
| STABILISATION OF THERMOPLASTIC NANOCOMPOSITES | 2004 |
|
RU2350631C2 |
| POLYMERIZABLE CONDENSED TRICYCLIC COMPOUNDS AS UV AND VISIBLE LIGHT ABSORBERS | 2020 |
|
RU2795094C2 |
