Patent ID: 7169467
Filing Date: 2007-01-30
Classification: B29C,Y10T

Abstract:
1. A structural foam article comprising: (a) at least one thermoplastic; (b) about 2% to about 15% by volume reinforcing particles, each of said reinforcing particles having one or more layers of 0.7 nm–1.2 nm thick platelets, wherein more than about 50% of the reinforcing particles are less than about 20 layers thick, wherein more than about 99% of the reinforcing particles are less than about 30 layers thick, and wherein at least some of the reinforcing particles that are not completely exfoliated are from about 15 to about 30 layers thick; and (c) at least one blowing agent present in a range from about 0.5% to about 10% by weight.