Modified polyethylene compositions

Details Modified polyethylene compositions Modified polyethylene compositions

C - Chemistry, Metallurgy

08

K

C08K 5/01 (2006.01)

Patent

CA 2595946

The present invention relates to a composition comprising more than 25 weight % (based on the weight of the composition) of one or more ethylene polymers having an Mw of 20,000 g/mole or more and at least 0.1 weight % of a liquid hydrocarbon modifier where the modifier has: 1) a viscosity index of 120 or more, and 2) an kinematic viscosity of 3 to 3000 cSt at 100~C , and 3) a pour point of -10~C or less, and 4) a flash point of 200~C or more; and wherein the modifier contains less than 5 weight % of functional groups selected from hydroxide, aryls, substituted aryls, halogens, alkoxys, carboxylates, esters, acrylates, oxygen, nitrogen, and .carboxyl, based upon the weight of the modifier.

L'invention concerne une composition contenant plus de 25 % en poids (sur la base du poids de la composition) d'un ou plusieurs polymères d'éthylène possédant un Mw de 20 000 g/mole ou plus et au moins 0,1 % en poids d'un modificateur d'hydrocarbure liquide, ce modificateur comprenant: 1) un indice de viscosité de 120 ou plus, 2) une viscosité cinématique de 3 à 3 000 cSt à 100 °C, 3) un point d'écoulement de 10 °C ou moins, et 4) un point d'éclair de 200 °C ou plus. Ce modificateur contient moins de 5 % en poids de groupes fonctionnels sélectionnés parmi un hydroxyde, des aryles, des aryles substitués, des halogènes, des alcoxys, des carboxylates, des esters, des acrylates, de l'oxygène, du nitrogène, et du carboxyle, sur la base du poids du modificateur.

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