Flexible rotationally molded article

A process for forming a rotomolded article, the process comprising:

• (a) preparing an ethylene interpolymer product having a melt index, I2 of from 2.5 to 8.0 g/10 min, and a density of from 0.905 to 0.920 g/cm3;
• wherein said ethylene interpolymer product comprises:
• (I) a first ethylene interpolymer;
• (II) a second ethylene interpolymer, and;
• (III) optionally a third ethylene interpolymer;
• wherein said first ethylene interpolymer is produced using a single site catalyst formulation comprising a component (i) defined by the formula
• (LA)aM(Pl)b(Q)n
• wherein LA is chosen from unsubstituted cyclopentadienyl, substituted cyclopentadienyl, unsubstituted indenyl, substituted indenyl, unsubstituted fluorenyl and substituted fluorenyl;
• M is a metal chosen from titanium, hafnium and zirconium;
• Pl is a phosphinimine ligand;
• and Q is independently chosen from a hydrogen atom, a halogen atom, a C1-10 hydrocarbyl radical, a C1-10 alkoxy radical and a C5-10 aryl oxide radical;
• wherein each of said hydrocarbyl, alkoxy, and aryl oxide radicals may be unsubstituted or further substituted by a halogen atom, a C1-18 alkyl radical, a C1-8 alkoxy radical, a C6-10 aryl or aryloxy radical, an amido radical which is unsubstituted or substituted by up to two C1-8 alkyl radicals or a phosphido radical which is unsubstituted or substituted by up to two C1-8 alkyl radicals;
• wherein a is 1;
• b is 1;
• n is 1 or 2;
• and (a+b+n) is equivalent to the valence of the metal M, and;
• wherein said second ethylene interpolymer is produced using a first Ziegler-Natta catalyst formulation;
• wherein said third ethylene interpolymer, when present, is produced using said first Ziegler-Natta catalyst formulation or a second Ziegler-Natta catalyst formulation, and;
• wherein said ethylene interpolymer product has a Dilution Index, Yd, greater than 0, and a flexural secant modulus at 1%, of less than 300 MPa;
• and
• (b) rotomolding the ethylene interpolymer product to form a rotomolded article.

A rotomolded article prepared from an ethylene interpolymer product having a melt index, 12 of from 2.5 to 8.0 g/10 min, and a density of from 0.905 to 0.920 g/cm3;

• wherein said ethylene interpolymer product comprises:
• (I) a first ethylene interpolymer;
• (II) a second ethylene interpolymer, and;
• (III) optionally a third ethylene interpolymer;
• wherein said ethylene interpolymer product has a Dilution Index, Yd, of from 4.5 to 6.5, and a flexural secant modulus at 1%, of less than 300 MPa.