Patent ID: 9000116
Filing Date: 2015-04-07
Classification: B29C,B29K,B29L,C08L,Y10T

Abstract:
1. A fuel tank comprising a blow molded article that comprises a layer comprising a blow molding ethylene resin composition; wherein the blow molding ethylene resin composition comprises a single or two or more ethylene polymers in the range of 99 wt % or more, wherein the ethylene polymer satisfies the following requirements [1] and [2] at the same time, and wherein the ethylene resin composition satisfies the following requirements [a], [b], [c], [d] and [h] at the same time: [1] the ethylene polymer is prepared by a process comprising synthesizing an ethylene homopolymer in an amount corresponding to 50 to 65 wt % based on the final polymer, and synthesizing an ethylene/α-olefin copolymer in an amount corresponding to 35 to 50 wt % based on the final polymer; [2] the intrinsic viscosity [η] of the ethylene homopolymer measured at 135° C. in a decalin solution is in the range of 1.01 to 1.5 (dl/g); [a] the melt flow rate (MFR) at a temperature of 190° C. under a load of 21.6 kg is in the range of 1.0 to 10 g/10 min; [b] the density is in the range of 955 to 960 kg/m [c] the number of methyl branches per 1000 carbon atoms is less than 0.1 according to [d] the tensile impact strength measured at −40° C. in accordance with JIS K 7160 is not less than 270 kJ/m [h] the intrinsic viscosity [η] measured at 135° C. in a decalin solution is in the range of 3.0 to 5.0 (dl/g).