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1. WO2020237363 - COMPOSITE PARTICLES COMPRISING A HYDROPHOBIC DYE AND AN AMPHIPHILIC BLOCK COPOLYMER AND USE THEREOF IN OPTICAL APPLICATIONS

Publication Number WO/2020/237363
Publication Date 03.12.2020
International Application No. PCT/CA2020/050708
International Filing Date 25.05.2020
IPC
C09B 67/02 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; MORDANTS; LAKES
67Influencing the physical, e.g. the dyeing or printing, properties of dyestuffs without chemical reaction, e.g. by treating with solvents; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
02Dyestuff preparations characterised by special physical forms, e.g. tablets, films
B01J 13/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
13Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
02Making microcapsules or microballoons
B82Y 30/00 2011.01
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE  OR TREATMENT OF NANOSTRUCTURES
30Nanotechnology for materials or surface science, e.g. nanocomposites
C09B 67/42 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; MORDANTS; LAKES
67Influencing the physical, e.g. the dyeing or printing, properties of dyestuffs without chemical reaction, e.g. by treating with solvents; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
42Preparations of dyes not provided for in a single one of groups C09B67/24-C09B67/40116
G02B 1/04 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1Optical elements characterised by the material of which they are made; Optical coatings for optical elements
04made of organic materials, e.g. plastics
G02C 7/04 2006.01
GPHYSICS
02OPTICS
CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
7Optical parts
02Lenses; Lens systems
04Contact lenses for the eyes
Applicants
  • COLOURSMITH LABS INC. [CA]/[CA]
Inventors
  • MASONE, Gabrielle
  • PAYNE, Morrgan
  • PANG, Yuan
  • CONROD, Ian Desmond
  • CURTIS, William Michael Anthony
  • KILCUP, Nancy
  • CHISHOLM, Roderick Angus
Agents
  • BERESKIN & PARR LLP/S.E.N.C.R.L., S.R.L.
Priority Data
62/852,53524.05.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) COMPOSITE PARTICLES COMPRISING A HYDROPHOBIC DYE AND AN AMPHIPHILIC BLOCK COPOLYMER AND USE THEREOF IN OPTICAL APPLICATIONS
(FR) PARTICULES COMPOSITES COMPRENANT UN COLORANT HYDROPHOBE ET UN COPOLYMÈRE SÉQUENCÉ AMPHIPHILE ET LEUR UTILISATION DANS DES APPLICATIONS OPTIQUES
Abstract
(EN)
Composite particles comprising a hydrophobic dye and an amphiphilic block copolymer encapsulating the dye are disclosed. The dye exhibits absorbance peaks at one or more points in the ultraviolet, visible, or infrared regions of the electromagnetic spectrum. The particles are thus useful in optical applications, such as the preparation of contact lenses that screen out harmful radiation. In select embodiments, the dye is Zinc (II) 5, 10, 15, 20-(tetraphenyl) porphyrin and the copolymer is an acrylate or PEO copolymer that has been crosslinked.
(FR)
L'invention concerne des particules composites comprenant un colorant hydrophobe et un copolymère séquencé amphiphile encapsulant le colorant. Le colorant présente des pics d'absorbance au niveau d'un ou plusieurs points dans les régions de l'ultraviolet, du visible ou de l'infrarouge du spectre électromagnétique. Les particules sont ainsi utiles dans des applications optiques, telles que la préparation de lentilles de contact qui bloquent les rayonnements nocifs. Dans des modes de réalisation sélectionnés, le colorant est la 5,10,15,20-(tétraphényl)porphyrine de zinc (II) et le copolymère est un copolymère d'acrylate ou de PEO qui a été réticulé.
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