Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Shock absorbing underlayment for artificial playing surfaces










Image Number 3 for United States Patent #5605721.

The present invention is directed to an underlayment composition for an artificial playing surface comprised of a butadiene rubber, such as polybutadiene or styrene-butadiene that is commercially available as recycled polycord tires that have been granulized. An inorganic-base moisture-retaining agent such as vermiculite or perlite is also included in the composition in addition to a binder comprised of a mixture of isocyanate polyurethane and an inorganic acid. The present invention also provides a method of making the present composition. The method comprises the steps of mixing thoroughly granulized particles of butadiene rubber in a mixing container, mixing an inorganic-based moisture-retaining component with the butadiene rubber, mixing an acid having a pH .ltoreq.3 with the butadiene rubber and the inorganic-based moisture-retaining component, and mixing an isocyanate polyurethane with the butadiene rubber, the inorganic-based moisture-retaining component and the acid. Finally, the present invention also provides a method of using the present composition which comprises the steps of applying the composition over a conventional foundation base and laying an artificial turf over the underlayment composition.








 
 
  Recently Added Patents
Communication security
Techniques for identifying optimized malicious search engine results
Systems, methods, and language for SCA CORBA descriptor files
Relative variable selection system and selection method thereof
Partial poly amorphization for channeling prevention
Window cleaning appliance
Composition exhibiting a von Willebrand Factor (vWF) protease activity comprising a polypeptide chain with the amino acid sequence AAGGILHLELLV
  Randomly Featured Patents
Current limiting output buffer for integrated circuit
Method of fabricating a glue layer of contact/via
Hanging support
Network adapter
Originality seal for disposable receptacles
Stain for acid-fast bacilli
Metallic keypad panel assembly having ripple luster
Recombinant DNA clones containing a broad host range gene from Bradyrhizobium japonicum
Assemblies, systems, and methods for vacuum assisted internal drainage during wound healing
HF ignition device