C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 5/18 (2006.01) B29C 47/06 (2006.01) B29C 55/00 (2006.01) B29C 55/12 (2006.01) C08L 23/12 (2006.01)
Patent
CA 2194469
An oriented film structure of improved water vapor transmission rate is prepared from an extruded and stretched mixture of (1) high crystallinity polypropylene (HCPP) having intermolecular stereoregularity greater than 93 % and (2) a moisture barrier improving amount of polyterpene resin.
Un film à structure orientée présentant une vitesse de passage diminuée de la vapeur d'eau est réalisé à partir d'un mélange extrudé et étiré (1) d'un polypropylène hautement cristallin ayant une stéréorégularité intermoléculaire supérieure à 93 % et (2) d'une quantité de résine polyterpène suffisante pour améliorer les propriétés de barrière contre l'humidité.
Heffelfinger Michael Thomas
Keung Jay Kin-Ming
Peet Robert Guthrie
Gowling Lafleur Henderson Llp
Mobil Oil Corporation
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