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Water repellent fiber boards

A fibrous, waterproof technology used in the field of sound-absorbing building materials or fiberboards and their manufacture

Inactive Publication Date: 2014-01-22
USG INTERIORS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Adhesives such as above improve the bond between the wall covering material and the partition, but they are not entirely satisfactory as relatively large quantities of product are required to achieve efficacy

Method used

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  • Water repellent fiber boards
  • Water repellent fiber boards
  • Water repellent fiber boards

Examples

Experimental program
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Embodiment Construction

[0025] Partitions or wall panels of interest here comprise base fibers, usually mineral fibers such as mineral wool or glass fibres. Additionally, organic fibers such as cellulose fibers derived from recycled newsprint may be used. Fillers are usually perlite, clay, calcium carbonate or stucco. The binder is usually starch, latex or similar material. These materials or ingredients are usually combined in an aqueous slurry and processed in an aqueous felting process as described above.

[0026] Various waterproofing agents or adhesives were evaluated to address adhesion problems encountered during subsequent application of wall covering materials using water-based adhesives. Additionally, determine the contribution of water repellants or adhesives to processing and end-use levels of VOCs and formaldehyde. The evaluated reagents included the following commercially available products.

[0027] • Imidazolidinone A - an imidazolidinone reactive adhesive. The adhesive was suppl...

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Abstract

An acoustic building material and method for manufacture incorporates a homogenously dispersed reactive silicone to improve water repellency and physical properties.

Description

technical field [0001] The field relates to sound-absorbing building materials or fiberboards and methods of making the same, and more particularly to fiberboards having increased water resistance and improved physical properties. Fiberboard includes reactive silicone dispersed uniformly within the board construction. Background technique [0002] The sound-absorbing building material or fiberboard can be in the form of ceiling tiles, ceiling panels, wall panels or wall tiles as are well known in the construction industry. The panels can be made from a slurry of fibers, fillers, binders and other ingredients. [0003] The board is typically made using the slurry in a hydrofelting process, as is known in the art. A dispersion of fibers, fillers, binders and other ingredients flows onto a moving porous carrier such as a Fourdrinier former for dewatering. The dispersion is dewatered first by gravity and then by vacuum suction. The wet underlayment is dried in a heated conve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C2/16
CPCE04C2/16C04B26/28C04B2111/00612C04B2111/27Y02W30/91C04B14/10C04B14/18C04B14/46C04B18/24C04B24/42E04B1/86
Inventor Q·C·余
Owner USG INTERIORS INC