C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/3067
C08L 51/00 (2006.01) C08K 5/00 (2006.01) C08K 5/01 (2006.01) C08L 51/06 (2006.01) C08L 91/06 (2006.01)
Patent
CA 1038989
ABSTRACT OF THE DISCLOSURE It is known to prepare thermoplastic resins having particular properties by cross-linking polymers or monomers having known properties. This procedure has the disadvantage that it is very difficult to make a polymer which has tailor made properties. The present invention seeks to overcome the drawback by providing a thermoplastic resin composition having excellent resistance to weather and impact, which comprises a binary graft-copolymer of a rubber component consisting essentially of an ethylene-propylene rubber and an aromatic vinyl compound or a ternary graft-copolymer of a rubber component consisting essentially of an ethylene- propylene rubber, an aromatic vinyl compound and a vinyl cyanide compound; 0.5 to 10% by weight of liquid paraffin having a specific gravity from about 0.860 to about 0.905; and an antioxidant, an ultraviolet absorber or a mixture thereof. The addition of the liquid paraffin has a synergistic effect on the resin enhancing its impact and weather resistance. Such resins are suitable for use in products subject to heavy exposure and wear.
189408
Higashio Yasuhiko
Hirai Mikio
Horiike Hideki
Morimoto Masayoshi
Shiga Shujiro
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