C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
18/1214, 400/307
C08L 23/04 (2006.01) C08K 3/22 (2006.01) C08K 3/26 (2006.01) C08K 9/08 (2006.01) C08L 51/06 (2006.01)
Patent
CA 1305263
ABSTRACT OF THE DISCLOSURE Filled thermoplastic compositions are disclosed. The compositions comprise (a) 30 to 90 parts of homopolymers of ethylene and/or copolymers of ethylene and C3 - C10 alpha-olefins, (b) 10 to 70 parts of homopolymers of ethylene and/or copolymers of ethylene and C4 - C10 alpha-olefins modified by grafting with ethylenically unsaturated carboxylic acids or anhydrides thereof, the blend of (a) and (b) having a melt index of less than 15 dg/min. and (c) 20 to 70 percent, based on the amount of (a) and (b) of a filler. The filler is selected from magnesium hydroxide, calcium hydroxide, aluminum trihydrate and hydroxyl-containing carbonates of at least one of magnesium and calcium, and mixtures thereof. The compositions exhibit a useful combination of stiffness and toughness, especially as measured by impact strength and tensile strength. DC-0185
542662
Dokurno Mark G.
Harbourne David A.
Lundhild Evelyn M.
Dokurno Mark G.
Du Pont Canada Inc.
Harbourne David A.
Lundhild Evelyn M.
Mccallum Brooks & Co.
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