The present invention provides a resin composition for producing extrusion products like sheets that generate no or minimum Newton's rings, comprising: 90 wt% to 99.99 wt% of resin as base resin, and 0.01 wt% to 10 wt% of cross-linked resin beads, based on the total weight of the composition. The invention also provides a method for producing extrusion products that generate no or minimum Newton's rings, and an extrusion product. The present invention provides a simple and economic technical solution of making extrusion products with no or minimum Newton's rings by extrusion directly without using special molds.
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