POLYKETONE RESIN COMPOSITION HAVING EXCELLENT GAS BARRIER PROPERTIES

摘要

The present invention relates to a polyketone copolymer consisting of repeating units represented by general formulae (3) and (4) below, and a mixture composition thereof. The present invention has excellent gas barrier properties and thus can be used for vehicle fuel tanks, vehicle hydrogen tank liners, sealed food containers, etc. -(CH2CH2-CO)x- (3) -(CH2CH(CH3)-CO)y- (4) (wherein x and y denote the mol% of each of the general formulae (3) and (4) in a polymer).