Patent ID: 9676920
Date: 2017-06-13
CPC Classifications: C08K,C08L,Y10T

Claim:
1. A pipe comprising a polyolefin nanocomposite material comprising: (A) 88.5-99.7 wt. %, based upon the total weight of the polyolefin nanocomposite material, of a crystalline or semi-crystalline polybutene-1 homopolymer or a polybutene-1 copolymer comprising 0.3 to 2.0 wt. % ethylene, wherein component (A) has a melt flow rate (ISO Method 1133, 190° C., 2.16 kg) from 0.2 to 50 g/10 min; (B) 0.1-1.5 wt. %, based upon the total weight of the nanocomposite material, of a nanosized mineral filler comprising a hydrotalcite of the formula: (C) 0.2-10 wt. %, based upon the total weight of the nanocomposite material, of a compatibilizer, wherein the ratio MFR (1)/MFR (2) of the melt flow rate value MFR (1) of component (A) to the melt flow rate value MFR (2) of the polyolefin nanocomposite material is at least 1.02, and wherein the mineral filler and compatibilizer are dispersed in the polyolefin resin at shear mixing rates from 30-300 sec