| Patent application number | Description | Published |
|---|
| 20090159228 | Variable dispersion of wet use chopped strand glass fibers in a chopped title strand mat - A size composition for reinforcement fibers used to form non-woven mats that contain variable amounts of individual filaments dispersed from chopped reinforcement fiber bundles is provided. The size composition contains a polyvinylamine film former, one or more silane coupling agents, and, optionally a lubricant. The size composition works in conjunction with the whitewater components in a wet-laid mat forming process to disperse individual filaments from the bundles of chopped fibers. The whitewater contains an anionic polyacrylamide viscosity modifier and/or a cationic or non-ionic amine dispersant (e.g., ethoxylated amine). The presence of a cationic or non-ionic amine in the whitewater disperses individual filaments from the chopped glass fiber bundles. The greater the amount of cationic or non-ionic amine present in the whitewater, the greater the amount of fiber dispersion. The absence of a cationic or non-ionic amine and the presence of an anionic polyacrylamide viscosity modifier maintain full bundle formation integrity. | 06-25-2009 |
| 20090208704 | ROOFING PRODUCT CONSTRUCTED FROM POLYMER /GYPSUM/ FIBERGLASS COMPOSITE MATERIAL - A roofing product is disclosed including a structural layer of composite material and a gel coat cover layer. The structural layer of composite material is formed by (a) a substantially homogeneous matrix of gypsum material and a polymer resin material and (b) wet-used chopped strand fibers. The wet-used chopped strand fibers are substantially filamentized with the substantially homogeneous matrix. In addition, a method for making a roofing product is disclosed. | 08-20-2009 |
| 20090209681 | UREA-FORMALDEHYDE RESIN REINFORCED GYPSUM COMPOSITES AND BUILDING MATERIALS MADE THEREFROM - A composite material containing substantially homogeneous matrix of a gypsum material and a urea-formaldehyde material where wet-used chopped strand fibers are filamentized within the substantially homogeneous matrix. | 08-20-2009 |
| 20110190434 | UREA-FORMALDEHYDE RESIN REINFORCED GYPSUM COMPOSITES AND BUILDING MATERIALS MADE THEREFROM - A composite material containing wet chopped strand fibers, gypsum, and a polymer material is provided. The wet fibers are filamentized within the polymer material. In exemplary embodiments, the wet chopped strand fibers are wet-used chopped strand glass fibers. The gypsum may be α-gypsum, β-gypsum, or combinations thereof. In at least one embodiment, the polymer is a urea-formaldehyde resin. The composite material may contain a facing layer on at least one exposed major surface of the composite material. A method of forming a composite material that includes mixing gypsum with a polymer material to form a substantially homogeneous matrix and adding a sufficient quantity of wet-used chopped strand fibers to form the composite material is also provided. | 08-04-2011 |
