ACRYLIC MATERIALS WITH HUGH REFRACTIVE INDEX WITH REDUCED QUANTITY OF BLINDING FLASHES FOR OPHTHALMOLOGICAL DEVICES Russian patent published in 2015 - IPC C08F220/10 A61L27/16 G02B1/04 

Abstract RU 2571091 C2

FIELD: chemistry.

SUBSTANCE: claimed invention relates to materials for ophthalmological or otorhinolaryngological devices. Described is polymer material for ophthalmological or otorhinolaryngological devices, containing a) 50-93% (w/w) of polymerised monomer of the following structure: in which: A represents H or CH3; B represents (CH2)m or [O(CH3)2]z; m equals 2-6; z equals 1-10; Y is absent or represents O, S or NR', on condition that if Y represents O, S or NR′, then B represents (CH2)m; R' represents H, CH3, Cn'H2n'+1 iso-OC3H7, C6H5 or CH2C6H5; n'=1-10; w equals 0-6, on condition that m+w≤8; and D represents H, Cl, Br, C1-C4 alkyl, C1-C4 alkoxy, C6H5 or CH2C6H5; b) 1-5% (w/w) of highly molecular linear polyethyleneglycol component of the following structure: in which: X, X' are independently absent or represent O or NH; R, R' are independently absent or represent (CH2)p; p=1-3; Q, Q' are independently absent or represent C(=O)NHCH2CH2O; A'=H or CH3; G represents H, C1-C4 alkyl or R'-X'-Q'-C(=O)C(=CH2)A'; and n=45-225, when G represents H, C1-C4 alkyl in the remaining cases n=51-225; and c) polymerised cross-linking means. Also described is ophthalmological or otophinolaryngological device, which contains said polymer material, where ophthalmological or otophinolaryngological device is selected from the group, consisting of intraocular lenses, contact lenses, keratoprostheses, corneal implants or rings, ontological ventilation tubes and nasal implants.

EFFECT: obtaining material with high refractive index and reduced quantity of blinding flashes.

19 cl, 12 tbl, 6 ex

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RU 2 571 091 C2

Authors

Laredo Uolter R.

Friman Charl'Z

Kallagan Tomas A.

Dates

2015-12-20Published

2011-06-20Filed