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1. CA2741046 - UV/VISIBLE LIGHT ABSORBERS FOR OPHTHALMIC LENS MATERIALS

Office Canada
Application Number 2741046
Application Date 03.11.2009
Publication Number 2741046
Publication Date 14.05.2010
Grant Number
Grant Date 19.01.2016
Publication Kind C
IPC
C07D 249/18
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
249Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
16condensed with carbocyclic rings or ring systems
18Benzotriazoles
G02C 7/00
GPHYSICS
02OPTICS
CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
7Optical parts
CPC
C07D 249/18
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
249Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
16condensed with carbocyclic rings or ring systems
18Benzotriazoles
A61F 2/1613
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
2Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
02Prostheses implantable into the body
14Eye parts, e.g. lenses, corneal implants; ; Implanting instruments specially adapted therefor; Artificial eyes
16Intraocular lenses
1613having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
C07D 249/20
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
249Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
16condensed with carbocyclic rings or ring systems
18Benzotriazoles
20with aryl radicals directly attached in position 2
G02B 1/043
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1Optical elements characterised by the material of which they are made
04made of organic materials, e.g. plastics
041Lenses
043Contact lenses
Applicants ALCON, INC.
Priority Data 12120408 14.05.2008 US
Title
(EN) UV/VISIBLE LIGHT ABSORBERS FOR OPHTHALMIC LENS MATERIALS
(FR) AGENTS ABSORBANT LES UV/LA LUMIERE VISIBLE ET POUVANT ETRE UTILISES DANS DES MATERIAUX POUR LENTILLES OPHTALMIQUES
Abstract
(EN)

The invention relates to a benzotriazole compound of the formula
(see above formula)
wherein R1 = H or CH3; R2 = C1-C4 alkoxy; and R3 = H, CH3, CH3O, F, CI, or
CF3. The
compound may be useful as a UV/Visible light-absorbing monomer. The UV-Vis
absorber is particularly suitable for use in intraocular lens materials.