Polymeric sheet having oriented multilayer interference thin...

B - Operations – Transporting – 32 – B

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Details

IPC codes

B32B 5/16 (2006.01) B29C 41/24 (2006.01) B29C 47/04 (2006.01) B29C 47/06 (2006.01) B29C 55/12 (2006.01) B29C 70/62 (2006.01) B29D 7/01 (2006.01) B29D 11/00 (2006.01) B32B 27/08 (2006.01) B41M 3/14 (2006.01) B44F 1/12 (2006.01)

Type

Patent

Patent number

CA 2181588

Description

A polymeric sheet (11) comprising a first layer of polymeric material having first (12) and second (13) parrallel surfaces, a plurality of mul- tilayer interference thin film flakes (16) disposed in the first layer of polymeric material, said flakes having first (17) and second (18) parallel surfaces and a width and a thickness and having an aspect ratio of at least 2;1 for the width with respect to the thickness, said flakes being oriented so that the flakes lie in planes with the first and second parallel surfaces of the flakes being substantially parallel to the first and second parallel surfaces of the first layer of polymeric material.

Feuille (11) de matière polymère comprenant une première couche de matière polymère présentant des première (12) et deuxième (13) surfaces parallèles, une pluralité de particules plates (16) d'interférence multicouche disposées dans la première couche de matière polymère, ces particules plates et minces possédant des première (17) et deuxième (18) surfaces parallèles et une largeur et une épaisseur telles que le rapport largeur/épaisseur est d'au moins 2:1, ces particules plates et minces étant orientées de sorte qu'elles se situent dans des plans dans lesquels les première et deuxième surfaces parallèles des particules plates sont sensiblement parallèles aux première et deuxième surfaces parallèles de la première couche de matière polymère.

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