Articles formed from aligned fiber cured in a polyasptic acid urethane matrix

Abstract

A freestanding article is provided that uses a cured polyaspartic acid urethane resin to form a hardened matrix impregnating and surrounding a cloth having parallel fibers. This resin provides an article with superior mechanical and weathering properties relative to conventional resins such as epoxies and vinyl esters.

1 . An article comprising:
 a parallel fiber cloth; and   a cured polyaspartic acid urethane resin impregnating said cloth.   
     
     
         2 . The article of  claim 1  wherein said cloth is fiberglass. 
     
     
         3 . The article of  claim 1  wherein said cloth is polyamide. 
     
     
         4 . The article of  claim 1  wherein said cloth is carbon fiber. 
     
     
         5 . The article of  claim 1  wherein said cloth is formed as a surfboard. 
     
     
         6 . The article of  claim 1  wherein said cloth is formed as a boat component. 
     
     
         7 . The article of  claim 1  wherein said cloth is formed as a prosthetic. 
     
     
         8 . The article of  claim 1  wherein said cloth is formed as a vehicle body component. 
     
     
         9 . The article of  claim 1  further comprising a plurality of parallel fiber cloths, wherein each of said plurality of cloths is independently fiberglass, polyamide, or carbon fiber. 
     
     
         10 . The article of any of  claim 1  wherein said resin has hexamethylene subunits. 
     
     
         11 . The article of any of  claim 1  wherein said resin is present from 0.6 to 1.5 parts by weight per part of weight of said cloth. 
     
     
         12 . The article of any of  claim 1  wherein said resin has at least one additive of a pigment, a filler, a flow aid, a plasticizer, a catalyst, or an antioxidant.