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1. WO2007141594 - IN-MOLD COATING COMPOSITIONS FOR OPTICAL LENSES

Publication Number WO/2007/141594
Publication Date 13.12.2007
International Application No. PCT/IB2006/004154
International Filing Date 21.12.2006
IPC
B29C 37/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
37Component parts, details, accessories or auxiliary operations, not covered by group B29C33/ or B29C35/144
C08J 7/04 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
7Chemical treatment or coating of shaped articles made of macromolecular substances
04Coating
B29D 11/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
11Producing optical elements, e.g. lenses or prisms
C09D 133/08 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
133Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
04Homopolymers or copolymers of esters
06of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
08Homopolymers or copolymers of acrylic acid esters
CPC
B29C 2037/0035
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
37Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
0025Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
0028In-mould coating, e.g. by introducing the coating material into the mould after forming the article
0035the coating being applied as liquid, gel, paste or the like
B29C 37/00
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
37Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
B29C 37/0032
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
37Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
0025Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
0028In-mould coating, e.g. by introducing the coating material into the mould after forming the article
0032the coating being applied upon the mould surface before introducing the moulding compound, e.g. applying a gelcoat
B29D 11/00
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
11Producing optical elements, e.g. lenses or prisms
B29D 11/00009
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
11Producing optical elements, e.g. lenses or prisms
00009Production of simple or compound lenses
B29D 11/00865
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
11Producing optical elements, e.g. lenses or prisms
00865Applying coatings; tinting; colouring
Applicants
  • ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE) [FR]/[FR] (AllExceptUS)
  • DANG, Hoa, Thien [US]/[US] (UsOnly)
  • TATMAN, Sheila [US]/[US] (UsOnly)
Inventors
  • DANG, Hoa, Thien
  • TATMAN, Sheila
Agents
  • SANTARELLI
Priority Data
11/314,83721.12.2005US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IN-MOLD COATING COMPOSITIONS FOR OPTICAL LENSES
(FR) COMPOSITIONS DE REVÊTEMENT DE MOULE POUR LENTILLES OPTIQUES
Abstract
(EN)
A composition adapted for use in an in-situ coating process for coating an optical surface for ophthalmic applications. A coating composition according to the present invention includes at least one multifunctional acrylate compound which is cured onto a heated surface with controlled coating distribution in an ophthalmic injection mold. For example, the composition may include an acrylic base cured with an initiator, e.g., t-butyl perbenzoate, and may further include at least one catalyst and at least one metal salt. An acrylic base according to the present invention may include a combination of monofunctional and/or multifunctional acrylate and/or methacrylate compounds.
(FR)
L'invention concerne une composition apte à être utilisée dans un procédé de revêtement in situ destiné au revêtement d'une surface optique pour des applications ophtalmiques. Selon la présente invention, une composition de revêtement inclut au moins un composé d'acrylate multifonctionnel qui est durci sur une surface chauffée avec une répartition de revêtement contrôlée dans un moule à injection ophtalmique. Par exemple, la composition peut inclure une base acrylique durcie avec un initiateur, par exemple, du perbenzoate de t-butyle, et peut en outre inclure au moins un catalyseur et au moins un sel de métal. Selon la présente invention, une base acrylique peut inclure une combinaison de composés d'acrylate et/ou de méthacrylate multifonctionnel et/ou monofonctionnel.
Latest bibliographic data on file with the International Bureau