Synthetic Rope Formed of Blend Fibers

Abstract

A rope structure of the present invention comprises a plurality of first yarns and a plurality of second yarns. The first yarns are formed of at least one material selected from the group of materials comprising HMPE, LCP, Aramids, and PBO, have a breaking elongation of approximately 2%-5%, and have a tenacity of approximately 25-45 gpd. The second yarns are formed of at least one material selected from the group of materials comprising polyolefin, polyethylene, polypropylene, and blends or copolymers of the two, have a breaking elongation of approximately 2%-12%, and have a tenacity of approximately 6-22 gpd. The first and second yarns are combined to form rope sub-components. The rope sub-components comprise approximately 20-80% by weight of the first yarns.

What is claimed is: 
     
         1 . A rope structure comprising:
 a plurality of first yarns, where the first yarns
 are formed of at least one material selected from the group of materials comprising HMPE, LCP, Aramids, and PBO, 
 have a breaking elongation of approximately 2%-5%, and 
 have a tenacity of approximately 25-45 gpd; and 
   a plurality of second yarns, where the second yarns
 are formed of at least one material selected from the group of materials comprising polyolefin, polyethylene, polypropylene, and blends or copolymers of the two, 
 have a breaking elongation of approximately 2%-12%, and 
 have a tenacity of approximately 6-22 gpd; wherein 
   the first and second yarns are combined to form rope sub-components; and   the rope sub-components comprise approximately 20-80% by weight of the first yarns.   
     
     
         2 . A rope structure as recited in  claim 1 , in which the rope sub-components comprise approximately 20-80% by weight of the second yarns. 
     
     
         3 . A rope structure as recited in  claim 2 , in which the rope sub-components comprise approximately 20-80% by weight of the second yarns and other materials. 
     
     
         4 . A method of forming a rope structure comprising the steps of:
 providing a plurality of first yarns, where the first yarns
 are formed of at least one material selected from the group of materials comprising HMPE, LCP, Aramids, and PBO, 
 have a breaking elongation of approximately 2%-5%, and 
 have a tenacity of approximately 25-45 gpd; 
   providing a plurality of second yarns, where the second yarns
 are formed of at least one material selected from the group of materials comprising polyolefin, polyethylene, polypropylene, and blends or copolymers of the two, 
 have a breaking elongation of approximately 2%-12%, and 
 have a tenacity of approximately 6-22 gpd; 
   combining the plurality of first yarns and the plurality of second yarns to form a plurality of rope sub-components, where the rope sub-components comprise approximately 40-60% by weight of the first yarns; and   combining the plurality of rope subcomponents to form the rope structure.   
     
     
         5 . A method as recited in  claim 4 , in which the rope sub-components comprise approximately 35-45% by weight of the first yarns. 
     
     
         6 . A method as recited in  claim 4 , in which the step of combining the plurality of first yarns and the plurality of second yarns to form a plurality of rope sub-components comprises the step of forming the rope sub-components such that the rope sub-components comprise approximately 40-60% by weight of the first yarns. 
     
     
         7 . A method as recited in  claim 4 , in which the step of combining the plurality of first yarns and the plurality of second yarns to form a plurality of rope sub-components comprises the step of forming the rope sub-components such that the rope sub-components comprise approximately 35-45% by weight of the first yarns. 
     
     
         8 . A rope structure comprising:
 a plurality of first yarns, where the first yarns
 are formed of at least one material selected from the group of materials comprising HMPE, LCP, Aramids, and PBO, 
 have a breaking elongation of approximately 2%-5%, and 
 have a tenacity of approximately 25-45 gpd; and 
   a plurality of second yarns, where the second yarns
 are formed of at least one material selected from the group of materials comprising polyolefin, polyethylene, polypropylene, and blends or copolymers of the two, 
 have a breaking elongation of approximately 2%-12%, and 
 have a tenacity of approximately 6-22 gpd; wherein 
   the first and second yarns are combined to form bundles; and   the bundles comprise approximately 20-80% by weight of the second yarns.   
     
     
         9 . A rope structure as recited in  claim 8 , in which the bundles comprise approximately 20-80% by weight of the first yarns. 
     
     
         10 . A rope structure as recited in  claim 8 , in which the bundles comprise approximately 20-80% by weight of the second yarns and other materials.