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1. WO2009137401 - FEUILLES MULTICOUCHES DE POLYOLÉFINE TRANSPARENTE SUR COLORÉE ET STRUCTURE DE SUPPORT EN COUCHES

Numéro de publication WO/2009/137401
Date de publication 12.11.2009
N° de la demande internationale PCT/US2009/042704
Date du dépôt international 04.05.2009
CIB
B32B 27/08 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
06comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique
08d'une résine synthétique d'une sorte différente
CPC
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 48/17
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
17the components having different colours
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
B29C 51/002
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
51Shaping by thermoforming ; , i.e. shaping sheets or sheet like preforms after heating; , e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
002characterised by the choice of material
B29C 51/02
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
51Shaping by thermoforming ; , i.e. shaping sheets or sheet like preforms after heating; , e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
02Combined thermoforming and manufacture of the preform
Déposants
  • A SCHULMAN. INC. [US]/[US] (AllExceptUS)
  • SMITH, Dennis, C. [US]/[US] (UsOnly)
Inventeurs
  • SMITH, Dennis, C.
Mandataires
  • LEWIS, Nathan, T.
Données relatives à la priorité
61/050,46505.05.2008US
Langue de publication anglais (EN)
Langue de dépôt anglais (EN)
États désignés
Titre
(EN) MULTILAYER CLEAR OVER COLOR POLYOLEFIN SHEETS AND LAYERED BACKING STRUCTURE
(FR) FEUILLES MULTICOUCHES DE POLYOLÉFINE TRANSPARENTE SUR COLORÉE ET STRUCTURE DE SUPPORT EN COUCHES
Abrégé
(EN)
A multilayer structure includes a clear polyolefϊn layer, a colored polyolefin layer, and a random polyolefin backing layer. The colored and backing layers are coextruded and are permanently bonded at a layer interface, which is exclusive of an adhesive. The structure has a DOI of 70 or greater and passes a gravelometer impact test per the GM9508P standard, with a 10 pint load, at a -30°C temperature, and at an impact angle of 30 degrees. Among other uses, the structures are appropriate for use as body panels in the motor vehicle industry. The structures display a "class A" finish and meet a variety of requirements for durability and weatherability. An ABA structured backing layer and a method of making it are also described herein.
(FR)
L’invention concerne une structure multicouche renfermant une couche de polyoléfine transparente, une couche de polyoléfine colorée et une couche de support de polyoléfine aléatoire. Les couches colorée et de support sont coextrudées et liées de façon permanente au niveau d’une interface de couche excluant toute substance adhésive. La structure possède un DOI supérieur ou égal à 70 et subit avec succès le test d’impact au gravelomètre conforme à la norme GM9508P, avec une charge de 10 pintes à une température de –30° C et sous un angle d’impact de 30 degrés. Entre autres utilisations, les structures se révèlent appropriées pour une utilisation en tant que panneau de carrosserie dans l’industrie automobile. Les structures exhibent un fini de « classe A » et satisfont à diverses exigences de durabilité et de résistance aux intempéries. L’invention concerne également une couche de support à structure ABA, ainsi que le procédé de fabrication associé.
Également publié en tant que
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