Patent ID: 6881368

Claim:
A process for producing a recycled ABS alloy resin, which comprises the steps of: (i) blending a recycled ABS resin with at least one resin selected from the group consisting of PC, PVC and PBT; (ii) melt-mixing the blend resulting from the step (i); and (iii) pelletizing the melt mixture resulting from the step (ii) wherein the recycled ABS resin used in the step (i) is obtained through the steps of: (1) grinding an ABS resin molded product and screening the ground resin by a screen having a mesh of 4 to 10 mm to obtain a ground product; (2) washing the ground product resulting from the step (1) with water in a proportion of at least 10 parts by mass per 1 part by mass of the ground product; (3) drying the water-washed ground product resulting from the step (2) to a water content of at most 0.3% by mass; and, after the step (3), step (4), (6) or (7); (4) removing low-density products having a bulk density lower by at least 0.5 than the bulk density of the recycled ABS resin by air classification; (6) removing metals by means of a magnet having a residual magnetic flux density of at least 1 tesla; or (7) removing metals by means of a metal detecting and removing device.