Bimodal molecular weight distribution polyolefins

A product in the form of particles, characterized by a weight average particle diameter in the range of 0.01 to 0.04 inches,

• each particle comprising a resin which is selected from the group consisting of polymer of ethylene, copolymer of ethylene and admixtures thereof,
• wherein the resin has a density of 0.89 to 0.97;
• has a Mw/Mn of 2.5 to 60, and has FI of 1 to 100,
• wherein said resin comprises two components of different molecular weight wherein one of said two components is a high molecular weight component (HMW) and wherein another of said two components is a low molecular weight component (LMW) with a molecular weight less than that of HMW, wherein said resin is characterized by Mw and Mw/Mn;
• wherein the HMW component has a calculated FI of 0.005 to 50 and the LMW component has calculated MI of 0.1 to 20,000 and calculated M.sub.w /M.sub.n of 2 to 5;
• and
• wherein the M.sub.w and the M.sub.w /M.sub.n of said resin in said particles is substantially constant over said range of weight average particle diameter;
• wherein the blend is formed in situ in a single reactor by a catalyst comprising a metallocene transition metal.