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1. WO2007149955 - Film optique multicouche, procédé de fabrication de celui-ci, et carte de transaction l'incorporant

Numéro de publication WO/2007/149955
Date de publication 27.12.2007
N° de la demande internationale PCT/US2007/071728
Date du dépôt international 21.06.2007
CIB
B32B 27/36 2006.01
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
32PRODUITS STRATIFIÉS
BPRODUITS STRATIFIÉS, c. à d. FAITS DE PLUSIEURS COUCHES DE FORME PLANE OU NON PLANE, p.ex. CELLULAIRE OU EN NID D'ABEILLES
27Produits stratifiés composés essentiellement de résine synthétique
36comprenant des polyesters
CPC
B29C 35/02
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
35Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
02Heating or curing, e.g. crosslinking or vulcanizing ; during moulding, e.g. in a mould
B29C 48/0018
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
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
001Combinations of extrusion moulding with other shaping operations
0018combined with shaping by orienting, stretching or shrinking, e.g. film blowing
B29C 48/022
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
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
022characterised by the choice of material
B29C 48/08
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
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
03characterised by the shape of the extruded material at extrusion
07Flat, e.g. panels
08flexible, e.g. films
B29C 48/185
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
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
16Articles comprising two or more components, e.g. co-extruded layers
18the components being layers
185comprising six or more components, i.e. each component being counted once for each time it is present, e.g. in a layer
B29C 48/21
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
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
16Articles comprising two or more components, e.g. co-extruded layers
18the components being layers
21the layers being joined at their surfaces
Déposants
  • 3M INNOVATIVE PROPERTIES COMPANY [US/US]; 3M Center Post Office Box 33427 Saint Paul, Minnesota 55133-3427, US (AllExceptUS)
Inventeurs
  • LIU, Richard Y.,; US
  • HEBRINK, Timothy J.,; US
  • JOHNSON, Stephen A.,; US
  • NORTH, Diane,; US
Mandataires
  • GALLO, Elizabeth A., ; 3M Center Office of Intellectual Property Counsel Post Office Box 33427 Saint Paul, Minnesota 55133-3427, US
Données relatives à la priorité
11/763,62215.06.2007US
60/816,23623.06.2006US
Langue de publication anglais (EN)
Langue de dépôt anglais (EN)
États désignés
Titre
(EN) MULTILAYER OPTICAL FILM, METHOD OF MAKING THE SAME, AND TRANSACTION CARD HAVING THE SAME
(FR) Film optique multicouche, procédé de fabrication de celui-ci, et carte de transaction l'incorporant
Abrégé
(EN)
A multilayer optical film includes alternating layers of first and second optical layers; the first optical layer comprising a first polyester, wherein the first polyester comprises first dicarboxylate monomers and first diol monomers, and from about 0.25 to less than 10 mol % of the first dicarboxylate monomers have pendant ionic groups; the second optical layer comprising a second polyester; and wherein the first and second optical layers have refractive indices along at least one axis that differ by at least 0.04. The multilayer optical film may be a polarizer film, a reflective polarizer film, a diffuse blend reflective polarizer film, a diffuser film, a brightness enhancing film, a turning film, a mirror film, or a combination thereof. The multilayer optical film may also be a transaction card such as a financial transaction card, an identification card, a key card, or a ticket card. A method of making the multilayer film is also disclosed.
(FR)
L'invention concerne un film optique multicouche comprenant des couches alternées d'une première et d'une deuxième couche optique, dans lequel la première couche optique comprend un premier polyester, le premier polyester comprenant des premiers monomères de dicarboxylate et des premiers monomères de diol, et environ 0,25 à moins de 10 % en moles des premiers monomères de dicarboxylate comportant des groupes ioniques pendants, la deuxième couche optique comprend un deuxième polyester, et les première et deuxième couches optiques ont des indices de réfraction le long d'au moins un axe qui diffèrent d'au moins 0,04. Le film optique multicouche peut être un film polarisant, un film diffusant, un film augmentant la brillance, un film tournant, un film miroir, ou une combinaison de ceux-ci. Le film optique multicouche peut également être une carte de transaction telle qu'une carte de transaction financière, une carte d'identification, une carte d'accès, ou une carte ticket. L'invention concerne également un procédé de fabrication du film multicouche.
Dernières données bibliographiques dont dispose le Bureau international