Patents

Small Cross-section Composites Longitudinally Oriented Fibers and a Thermoplastic Resin as Concrete Reinforcement

February 28, 2004

The patent is for a reinforced concrete structure that makes up a composite having many longitudinally oriented fibers embedded in a matrix of a depolymerizable and repolymerizable rigid thermoplastic polyurethane resin. This resin has a glass transition temperature (Tg) of at least 50° C. and a hard segment content (defined as the proportion of the weight of the TPU that is made up of chain extender and polyisocyanate residues) of at least 75 percen, The composite has the longest cross-sectional dimension of not more than 5 mm and an aspect ratio of at least 10, and is then embedded in concrete to reinforce the it.

  • 2015 International Buyers Guide

    2015 International Buyers Guide

    July 21, 2015
    Our annual Buyers’ Guide lists nearly every supplier and producer involved with the global nonwovens industry.

  • Raw Materials Round Up

    Raw Materials Round Up

    Karen McIntyre, editor||June 8, 2015
    Suppliers create additives, preservatives and other specialties to help nonwovens makers meet their goals.

  • Keeping It Clean

    Keeping It Clean

    Tara Olivo, associate editor||June 8, 2015
    Convenience and continued innovation keeps the household wipes market thriving.