Patent ID: 8206817

Claim:
A dimensionally-stable polyolefin based sheet product comprising a combination of a), b) and c), as follows: a) one or more semi-crystalline, ethylene-based elastomeric resins having a melting point below about 160° F.; b) a semi-crystalline, non-elastomeric alpha-olefin-based resin with a melting point greater than 268° F.; and c) a ground, vulcanized rubber fraction, obtained from recycled rubber, ground or recycled into particles having a size up to about 18 mesh homogenously mixed together and formed into a sheet material having upper and lower major surfaces; wherein the amounts are as follows: a) an amount greater than 60% by weight based on the total weight of a) and b); b) an amount of 4 wt. % to 30 wt. %, based on the total weight of a), b), and c); and c) an amount of 50 wt. % to 80 wt. % based on the weight of the total amount of components a), b), and c); and d) a woven or nonwoven reinforcing scrim with a melting point higher than about 300° F. adhered to an upper and/or lower major surface of said sheet material.