Patents

Nonwoven Glass Mat with Dissolvable Binder System For Fiber-Reinforced Gypsum Board

March 4, 2008

A gypsum board was patented. The board includes a gypsum matrix provided from an aqueous gypsum slurry and has a bottom and a top, a centerline, and external surfaces. A first facer sheet is placed on the bottom of the gypsum matrix. A second facer sheet is placed on the top of the gypsum matrix. One or more sizing coated nonwoven glass fiber mats is placed at preselected locations within the gypsum matrix. The sizing coated non-woven glass fiber mats are bonded by a dissolvable or reversible binder that secures the glass fiber mats in a preselected fiber architecture during handling of the glass fiber mats. The dissolvable or reversible binder dissolves in the aqueous gypsum slurry or reverses during gypsum board drying thereby creating intimate contact between sizing coated glass fibers in the nonwoven glass fiber mat and the gypsum matrix. This arrangement provides reinforcement to the gypsum board.
  • 2016 International Buyers Guide

    2016 International Buyers Guide

    July 15, 2016
    Our annual Buyers’ Guide lists nearly every supplier and producer involved with the global nonwovens industry.

  • Raw Material Round Up

    Raw Material Round Up

    Karen McIntyre, Editor||June 9, 2016
    Suppliers to nonwovens manufacturers continue to innovate.

  • Fiber Producers Hone in on Hygiene

    Fiber Producers Hone in on Hygiene

    Tara Olivo, Associate Editor||June 9, 2016
    Growth in hygiene markets has spurred innovation among these suppliers to the nonwovens industry.