B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/20 (2006.01)
Patent
CA 2319233
This invention relates to novel multilayer formed articles including, but not limited to containers such as bottles, tubes, pipes, preforms and films (including oriented films such as biaxially oriented) comprising a melt processible resin having dispersed therein a platelet filler. The multilayer formed articles have improved barrier while maintaining excellent clarity. More particularly, the multilayer structures of the present invention display haze values of less than about 2 % and carrier resins which are substantially free from platelet particles having a diameter greater than about 15 microns.
L'invention concerne des nouveaux articles multicouches façonnés, et elle concerne notamment, sans être limités à ceux-ci, des contenants tels que des bouteilles, des tuyaux, des conduites, des préformes et des films (y compris des films orientés tels ceux orientés biaxialement), comprenant une résine que l'on peut traiter à l'état de fusion et dans laquelle on a dispersé une charge lamellaire. Ces articles multicouches façonnés possèdent une propriété haute barrière tout en conservant une excellente clarté. Les structures multicouches de l'invention présentent notamment des valeurs de trouble inférieures à environ 2 %, ainsi que des résines support sensiblement dépourvues de particules lamellaires dont le diamètre dépasse 15 microns environ.
Bagrodia Shriram
Germinario Louis Thomas
Piner Rodney Layne
Trexler Jack Wesley Jr.
Eastman Chemical Company
Gowling Lafleur Henderson Llp
University Of South Carolina Research Foundation
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