Patent ID: 6368700
Filing Date: 2002-04-09
Classification: B32B,B60J,C08L,C09D,Y10T

Abstract:
A weatherseal for an opening in a structure the interior or which is to be protected against wind and rain, comprising,an extrudate body comprising a first olefin-based thermoplastic vulcanizate or elastomer (first TPV) having a hardness in the range from about 35 Shore A to 80 Shore D; a slip-coating of a copolymer layer integral with said body, thermally bonded to chosen glass-abutting or door-abutting surfaces thereof, said slip-coating comprising (i) a second olefin-based thermoplastic vulcanizate or elastomer (TPV), the same or different from said first TPV, (ii) a reaction product of (a) a melt-blended copolymer of an unsaturated monomer bearing an acid anhydride group grafted to polypropylene, with (b) a thermoplastic polyurethane (TPU); and, (iii) a random copolymer of two or more a-olefins having from 2 to about 12 carbon atoms; said slip-coating having a hardness lower than Shore D 50, a Taber abrasion resistance (measured at 500 cycles) lower than 50, and coefficients of friction, both static and dynamic, lower than about 0.4.