C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 3/10 (2006.01) B65D 41/04 (2006.01)
Patent
CA 2281749
The present invention provides for a liner for a closure. The liner is an EVA copolymer blended with a stiff ionomer resin and an improved slip additive blend, wherein the net vinyl acetate in the EVA/ionomer blend is about 15 to 23 percent. These components, when melt blended together, yield a cap liner having improved removal torque and carbonation retention properties.
La présente invention concerne un joint d'étanchéité pour capsules constitué d'un copolymère EVA mélangé avec une résine d'ionomère rigide et un mélange amélioré d'un additif de lubrification, la proportion nette d'acétate de vinyle dans le mélange EVA/ionomère étant comprise entre environ 15 et 23 pour cent. Comêlées par fusion, ces substances produisent un joint possédant des propriétés améliorées de couple de retrait et de rétention de carbonatation.
Bennett Jones Llp
E.i. Du Pont de Nemours And Company
LandOfFree
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