Patent ID: 6699934
Filing Date: 2004-03-02
Classification: C08J,C08L

Abstract:
A resin composition comprising:(A) from 1 to 99% by weight of a copolymer, which comprises an ethylene unit and an &agr;-olefin unit of 3 to 12 carbon atoms, and (B) from 99 to 1% by weight of a copolymer, which comprises an ethylene unit and a unit of a compound having a carbon-carbon double bond and an oxygen atom, provided that the sum of the copolymer (A) and the copolymer (B) is 100% by weight, wherein the copolymer (A) satisfies the following requirements (A-1) to (A-4), and the copolymer (B) satisfies the following requirements (B-1) and (B-2), (A-1): a melt flow rate (MFR) is from 0.1 to 50 g/10 min, (A-2): a density (d) is from 880 to 935 Kg/m3, (A-3); a composition distribution variation coefficient (Cx) represented by the following equation (1) is not more than 0.5, Cx=&sgr;/SCBaveâ€ƒâ€ƒ(1) wherein &sgr; is a standard deviation of composition distribution, and SCBave is an average branching degree,(A-4): a content (a) of cold xylene-soluble portion in terms of % by weight based on the weight of the copolymer (A) and the density (d) satisfy the following inequality (2), a<4.8Ã—10âˆ’5Ã—(950-d)3+10âˆ’6Ã—(950-d)4+1â€ƒâ€ƒ(2) (B-1): a melt flow rate (MFR) is from 0.01 to 50 g/10 min, and (B-2); a content (b) of a unit of a compound having a carbon-carbon double bond and an oxygen atom in terms of % by weight based on the weight of the sum of the ethylene unit and the unit of a compound having a carbon-carbon double bond and an oxygen atom, and a content (WB) of the copolymer (B) in the resin composition in terms of % by weight based on the weight of the sum of the copolymer (A) and the copolymer (B) satisfy the following inequality (3), 50>b>0.2Ã—W8+10â€ƒâ€ƒ(3).